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Earth Sciences-
Status of Understanding
The Earth is more fascinating and mysterious than ever, de-
spite the great advances in knowledge achieved in the first three
decades of the space age. The fascination is generated by the ex-
traordinary complexity of the Earth and by the inherent inacces-
sibility of many of its key processes. In the face of this complexity
and inaccessibility, the notion of an orderly progression from re-
connaissance to mapping becomes a myth. This is all the more
reason to undertake a systematic and comprehensive program. By
1995 we will be ready to make an integrated study of the Earth as
a planet, that is, to undertake a Mission to Planet Earth.
Several developments, both recent and expected in the near fu-
ture, make this timely. The Earth's complexity involves regimes of
widely differing energy and time scales interacting in varied ways.
For this reason problems of earth science cannot be reduced to
fundamental elements analogous to the energetic particles of mod-
ern physics or the DNA components of modern biology. Because
the systems are "chaotic," it is usually impossible to predict the
behavior of a regime within the Earth solely from first principles;
attempts to do so are generally less successful than alternative ap-
proaches, which may strike the basic scientist as crudely empirical.
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The geologic record of a long series of events that actually occurred
can be used to forecast Earth's behavior. It is true that some of
the interfaces between greatly differing regimes of the Earth are
quite sharp, such as the ocean and atmosphere, the ocean and
crust, or an organism and its environment. But one of the greatest
weaknesses in our understanding concerns what happens at these
interfaces. Across these interfaces chemical and energetic fluxes
influence behavior on time scales ranging from seconds to millions
of years.
Earth is the only planet in our solar system on which life has
come into existence and persisted. Why? Not only does Earth
support life, it is influenced by life. Biological processes affect
the Earth's atmosphere, oceans, and solid surfaces; systematic
phenomena such as cInnate and the global cycling of chemicals
respond to life. Conversely, living organisms are influenced directly
by the climate system, by the distribution and flux of chern~cal
compounds. As such, the earth system is strongly coupled with
widely varying rate constants. The Earth is the only planet that
supports plate tectonics. Why? The Earth is the only planet with
a liquid ocean. Again, why?
The complexity of the Earth has led to its examination being
divided among several disciplines that speak imperfectly to each
other. They range from geomagnetic theory to ecology, which
is concerned with the interaction between organisms and their
environments. One matter in common among these disciplines Is
the problem of inference from incomplete data. In large part, this
problem arises from the inaccessibility of key processes. Extreme
examples are convective flows in the lower mantle generated by
inhomogeneity of density on the one hand, and the secretion of
calcium carbonate by foram~nifera in the ocean on the other. To
help solve these problems of identifying and quantifying the forces
behind sketchily sampled details, we need global, synoptic, and
continuous data.
The basic objectives of studies of Earth can be grouped as
~ To understand the processes by which the Earth formed
and evolved to its present state, and to determine the composition,
structure, and dynamics of the solid planet.
~ To establish and understand the structure and dynamics
of the oceans and atmosphere and their interactions with the
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solid Earth including the global hydrological cycle, weather, and
~ To characterize the history and dynamics of living organ-
isms, including mankind and their interactions with the environ-
To understand Earth in the context of the solar system,
and the use of the Earth as a detector of cosmic events.
There has to date been no systematic attack on these broad
objectives. In this document the task group hopes to show how
these objectives can be developed into "grand themes" to focus
a systematic, global study a Mission to Planet Earth. To set
the context, the following sections summarize the state of un-
derstanding of the various subsystems of the Earth as the task
group expects it to be in 1995. In many cases, the task group has
recognized the existence of up-to-date reviews and recommenda-
tions in previous reports, and has quoted summaries of these in
appropriate contexts.
Our prunary objective is to understand the processes by which
the Earth formed and evolved to its present state, and to determine
the composition, structure, and dynamics of the solid planet. Since
the synthesis of plate tectonics has given us a new understanding
of Earth processes, the discussion will begin there.
Plate Tectonics
As has been pointed out in Part ~ of the CES strategy, geology
has been revolutionized since the mid-196Os by the recognition
of the plate structure of the lithosphere. According to the plate
tectonic theory, the Earth's surface is divided into about 11 major
and a large number of minor plates that behave as rigid units, are
in continuous relative motion, and interact mainly at their edges.
New plate material Is created at ocean ridges; old oceanic plate
material is subducted or consumed at ocean trenches. Many active
volcanoes are associated with plate boundaries. Earthquakes occur
where plates are created or destroyed, and where plates move past
one another. Earthquakes outline the worId's major plates and
serve as energetic sources to probe the interior.
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The relative motion of the Earth's plates over approximately
one hundred 100,000 year intervals is known for the last 200 mil-
lion years from studies of magnetic lineations on the ocean floor.
These motions give us some idea of the general rates of convective
motions in the Earth's viscous mantle. There ts no ocean floor
older than approximately 200 million years; most older oceanic
crustal material has been subducted, some has been incorporated
into continents. Inferences about plate interaction prior to this
tune must be made from continental geology and especially pre-
served pieces of ocean floor (ophiolite suites).
Although we know the average relative velocities of the Earth's
plates over a time scale of a million years, the Earth's magnetic
field does not reverse polarity frequently enough to allow a finer
resolution of the present rates of motion. We do not know what
drives the plates. Earthquakes show that the motion of the plates
at plate boundaries is episodic, but we do not yet know how strain
accumulates at those boundaries. Nor do we know whether pre-
cursory effects before major earthquakes are general phenomena,
or diagnostic signals. The episodic motions at plate boundaries
are thought to be damped out with distance from the boundary
by stress relaxation in the viscous asthenosphere underlying the
plates, so that the relative motions of plate interiors are steady;
direct observations of plate motions over time scales of years are
beginning to indicate that these rates are indeed steady.
A major goal in plate dynamics is to understand the driving
mechanism for the plate motions. This mechanism involves some
form of thermal convection in the Earth's mantle, but the form
of the motions is uncertain at levels deeper than the plates them-
seives. We do not know whether the radial extent of the convection
system involving the plates extends to the full depth of the mantle,
or part way. Nor do we know the planform of the flow, that is,
the pattern in plan view of upwelling and downwelling limbs of
the convection system. further, the contribution to the driving
energy for convection from secular cooling of the Earth's interior,
including core-mantle differentiation, is uncertain. The detailed
pattern of the convection flow is thought to be highly sensitive to
the viscosity of the Earth's mantle and to its spatial variations.
The history of mantle convection Is closely linked not only to the
history of plate motions, but also to the removal of heat from the
Earth's interior and to the chemical evolution of the crust and
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Gravitational and Magnetic Fields
The longer wavelength variations of the geoid and gravity
field provide information on the density Attribution in the man-
tIe. Since these density inhomogeneities drive mantle convection,
the measurements can be used to infer the structure of mantle
convection. The interpretation of the long-wavelength features of
the gravity field will be complemented by improvements in seismic
resolution of density variations. Complete upper mantle coverage
will be available from surface wave tomography. Lower mantle
heterogeneity can be determined with more complete coverage
and with an average resolution of about 200 km. To achieve this
resolution worse requires a much denser global distribution of
digital seismometers, including sea floor deployment. The long-
wavelength part of the geoid shows a high degree of correlation
with the lower mantle seismic heterogeneities. The inferred rela-
tionship between density and velocity places constraints on the
viscosity structure of the mantle and the resulting relief on the
core-mantIe boundary. The intermediate wavelength part of the
geoid correlates with the Attribution of slabs and upper mantle
velocity variations, constraining the density variations in these
regions. At shorter wavelengths, lithospheric contributions, to-
gether with inherent limitations in seismological resolution, will
make the interpretation much more patchy. There will still be
uncertainty as to the relative contributions of convective or elastic
support of geoid features. Understanding of the energetics of man-
tie convection will probably continue to be limited by ambiguities
in interpretation of heat flow data. High-resolution global maps
of heat flow will never be available, but surface-wave tomography
shows a high degree of correlation with heat flow.
The direct inference of long-term (i.e., post-glacial) variation
from gravity measurements began in 1983, with a determination
of changes in long-wavelength harmonics. The geoid ~ not static!
Estimates of changes in higher zonal harmonics can be expected
by 1995, but determination of tesseral harmonic trends seems
unfeasible. Determination of tidal effects on satellite orbits will
be refined, and will help solve the problem of tidal dissipation. It
also can be expected that the static gravity field will contribute
to the understanding of post-glacial rebound. A notable recent
achievement, the determination of the tune variation of J2 the
oblateness�helps resolve the viscosity of the lower mantle.
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By 1995 the oceanic geoid should have an uncertainty of less
than a meter and a spatial resolution of 10 to 20 km. The prin-
cipal means to this resolution will be the DOD satellite Geosat;
the task group assumes that its results will become available for
scientific publication. Because of the variations introduced by
ocean processes, improvements in knowledge of the ocean geoid
will be slow, dependent on more and more complex analyses of
growing data sets. Knowledge of the geoid over land areas, how-
ever, is much more variable. In developed accessible areas, surface
measurements provide low levels of uncertainty and good spatial
resolution. Nevertheless, surface data are not now available in
many areas because of either physical or political inaccessibility.
By 1995 it is also hoped that the Geopotential Research Mis-
sion (GRM) will provide gravity data over the continents with
an accuracy of 2 mgal and a spatial resolution of 100 km. Be-
cause of the lower limit on spacecraft altitudes it is not possible to
significantly improve this resolution from satellites.
The core interacts with the mantle in two unportant ways: it
transfers heat into the base of the mantle, and it exerts torque on
the mantle. The former contributes to and may even drive thermal
convection in the deep mantle, and the latter causes changes in the
length of day and in the orientation of the Earth's axis of rotation
in space.
Although it is widely accepted that the Earth's magnetic field
is maintained against dissipative ohmic decay by self-excited dy-
namo action in the liquid outer core, the details of the process
remain obscure. It is uncertain whether there is (1) thermal con-
vection driven by radioactive heating distributed throughout the
outer core, or (2) slurry convection near the top of the core, or
(3) chemical convection driven by compositional change and la-
tent heat release at the boundary between the liquid outer core
and the more solid inner core. We do not know (~) whether the
core dynamo ~ lam~nar or turbulent, (2) whether there ~ a weak
toroidal field, or (3) whether the toroidal field strongly dominates
the poloidal field. Can the core magnetic field really change glow
ally within an interval of less than 2 years as appears to have been
the case during the Geomagnetic unpube of 1970?" Are such jerks
rare or common, and how large can they be?
Clearly, light would be shed on many of these questions if
we could obtain data necessary to construct an acceptable mode]
for the fluid motion beneath the core-mantle boundary (CMB).
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Probing magnetically more deeply into the fluid core does not yet
appear to be feasible, but the construction of "synoptic weather
maps" for the fluid near the CMB is technically realizable. The
pattern of that motion could reveal the type of convection going
on, and help determine the strength of the toroida] field, which
is attenuated to unobservable levels at the Earth's surface. If the
fluid motion is steady in time, it is uniquely determined by the
tune-varying vertical component of the magnetic field at the top of
the core. Currently, the major scientific challenge for the subject
of core fluid dynamics is to develop sound methods for extracting
horizontal fluid motions near the top of the core from magnetic
measurements taken at and above the Earth's surface.
Magsat resolved crustal magnetic anomalies and obtained an
excellent snapshot of the main magnetic field, but gained hardly
any useful instantaneous information on secular variation. Nev-
ertheless, Magsat data were recently compared with observations
at earlier epochs to determine, magnetically, the depth of the
CMB supporting the frozen-flux mode} of the core and the nearly
insulating mode} of the mantle.
Geomagnetic secular variation, crucial for studies of core dy-
nam~cs, is currently best measured by ground-based permanent
magnetic observatories and repeat stations, which are sparsely
and very unevenly distributed over the Earth's surface. They will
continue to play an important supporting role, especially during
the long intervals between magnetic main field missions, but they
cannot provide an adequate data base for global studies on their
The GRM will be of substantial importance for studies of core
dynamics. Its low-altitude, carefully monitored, circular polar
orbit will provide a significant improvement in our ability to resolve
the crustal magnetic anomalies, which must then be removed from
the data to expose the main field emanating from the core. The
comparison between Magsat and GRM magnetic anomalies should
go far toward establishing their repeatability, stability in time,
and spatial scale of variation. However, snapshots of the main
field at intervals of a decade and more cannot teach us about
the continuous time evolution of the magnetic field, including the
possible existence of short-term magnetic impulses.
The Earth's outer core has long been thought to be a rela-
tively homogeneous molten body. Seismic tomography studies of
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the lower mantle indicate the existence of mantle density varier
tions, which are matched by long-wavelength features of the geoid
and which require kilometer-scale relief on the core-mantIe bound-
ary to support the mantle density variations. Relief at the top
of the core may play a controlling role in core dynamo mechan-
ics, and changes at the core-mantIe boundary may control such
phenomena as westward drift of the geomagnetic field. Tomogra-
phy can potentially be used to observe topographic variations in
the boundary of the fluid outer core and variations in the core.
Such observation will contribute to understanding the thermal be-
havior of the core, chemical differentiation occurring there, and
eventually the operation of the magnetic dynamo, one of the most
significant and least understood processes of the Earth.
The non-dipole terms of planetary magnetic fields extrapo-
lated down to the generating regions are appreciable. These re-
gional variations must be significant in the overall behavior, par-
ticularly in reversals of dipole polarity evidenced by the Earth's
remanent magnetism. Magnetic observations obtained over the
last 150 years indicate a rate of change of the magnetic field such
that the non-dipole terms would appear quite different in a few
thousand years. This so-called secular variation can be inferred by
magnetometers on appropriate satellites- ideally, small dedicated
spacecraft orbiting for decades at altitudes of 1000 km or more.
The Magsat satellite launched in 1978 established a baseline for
measuring long-term changes. However, the orbit was far from op-
t~mum for this purpose, and hence estimates of the field generated
by the core are affected not only by solar-wind-induced variations,
but also by the remanent magnetism of the crust. Furthermore,
the duration of the mission was much too short to obtain any
estimate of temporal variations in the field.
The GRM will improve the resolution in determination of
variations in remanent magnetism to about 100 km. An Explorer
satellite with a magnetometer should greatly improve estimates of
secular variations to about the tenth degree of harmonics.
For an integrated approach to core fluid dynamics, we require
long-term, nearly continuous vector magnetic data from nearly
circular, polar orbits at sufficient height to minimize data contam-
ination by crustal anomalies and ionospheric currents. It would
probably suffice to turn on a satellite vector magnetometer for a
week or two every 6 months, but long overall mission duration
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is vital. Magnetic signab diEuse downward through the conduct-
ing mantle rather slowly, so long time spans of surface data are
aLso required to probe deeply for the mantle conductivity profile.
The Magnetic Field Explorer mission, currently under discussion,
would be ideal for this purpose. It would be especially useful if
it were in orbit during the period of the GRM, for it could then
supply the excellent baseline main field mode! above which the
GRM crustal anomalies stand out.
Structure of the Earth's Interior
It is a good first approximation to assume that the Earth's
structure is radially symmetric. However, mantle convection in-
evitably entails lateral heterogeneity. Recently, inversions of seis-
mic travel times have been used to obtain mantle heterogeneities
on a global scale. These "tomographic" studies can also be used
to measure the topography of the core-mantIe boundary.
First interpretations of the tomographic results indicate the
importance of these studies toward understanding the dynarn~cs
of the Earth. The results for the upper mantle show that the
anomalies under the mid-ocean ridges vary significantly in their
depth extent. Anomalies are associated with hotspots, shields,
and back-arc basins and may provide important information on
their origin.
An illustration of the implications of this new geophysical ap-
proach ~ the effort to interpret large-scale seismic velocity anoma-
lies in terms of variations in density. The seismological results
therefore can be integrated with interpretation of the gravity field
and even the magnetic field (roughness of the core-mantle bound-
ary is related to the westward drift of the non-dipole field), and
can provide constraints on the rheology. Elements of the pattern
of the flow in the mantle can be predicted and can be used to
constrain the range of lateral variations in temperature and com-
position. While some progress can be gained through refinements
in analysis of the existing data base, it is clear that a major im-
provement in the resolution can only be achieved by a significant
increase in quality and quantity of seismic observations with a new
global seismic network.
Another unport ant application of such a global seismographic
network is studying earthquakes. Quantitative determinations of
the energetics and kinematics of earthquake sources are applied
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now systematically to several hundred events per year. Accumu-
lation of such data for the past 7 or 8 years allows us for the
first tone to monitor variations in the pattern of stress accumula-
tion and release. In particular, indications of stress ~rugration and
diffusion have been inferred for several subduction zones.
Several interesting properties can be indirectly deduced from
measurement of variations of Earth's orientation. Measurement
of Earth's precession constant already provides the most accurate
estimate of Earth's moment of inertia. Recent results from the
Polaris very long baseline interferometry (V[Bl) network indi-
cate that the amplitude of the annual notation differs from mode]
predictions based on a hydrostatic Earth. The datum may indi-
cate that the core-mantle boundary has a small non-hydrostatic
ellipticity on the order of 300 m in amplitude that is somehow sup-
ported by mantle convection. Detection of the free core rotation
(namely, its frequency) or changes in other notation constants
(semiannual and Midyear) could corroborate this interpretation.
These measurements cad for a commitment to a long-term oh
servation program utilizing Polaris, lunar laser ranging, and the
Laser Geodynamic Satellites (LAGEOS).
Another major structural parameter that may be inferred from
these kinds of studies is inner core/fluid core density contrast.
One method would be to attempt to observe the translational
modes of the inner core by measuring the short-period variations
in gravity at Antarctica. So far, this experiment has failed to
observe any signal. An alternative would be to detect the inner
core free wobble through its effect on the mantle wobble. The
core wobble frequency is proportional to the core ellipticity and
density contrast and requires core rigidity for time scales of at
least a few years' duration. The existence of this mode requires
an excitation mechanism (core dynamos. The detection of this
mode may, therefore, provide new information related to dynamo
processes at depth. Detection of the effect of inner core on mantle
notation is another possibility, although this must be separated
from the effect of core-mantle ellipticity.
Data from laser ranging to reflectors placed on the Moon dur-
ing the Apollo missions have been collected on a routine basis
since 1969. Precise ranges have been obtained from Texas and
Hawaii. This data set has proved extremely useful in determining
variations in earth rotation and polar motion, tidal recession of the
Moon, possible detection of a lunar core, and detection of lunar
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Chandler wobble. More operational ranging stations have recently
been added in France and Hawaii. A refitted Australian system
will soon be added to this list. The expectation is that these
stations will range more frequently, with more accurate ranging
systems, to obtain 5-cm or better normal point accuracy. The
promise is that this system will complement the Polaris V[BI net-
work in estimating earth orientation variations in earth rotation,
polar motion, and notations. More precise measurements of lunar
parameters are also expected from this growing network.
Currently, V[BI and other techniques are greatly improving
constraints on the rate of the Earth's rotation and the direction of
the rotation axis (wobble). At the opposite end of the spectrum,
we finally have two-cligit accuracy on the rate of tidal dissipation.
It can be expected that techniques of instrumentation and analysis
will continue to improve over the coming decade. The NAVSTAR
satellites of the Global Positioning System (GPS), a carefully lo-
cated set of strong sources, will make a significant contribution.
By 1995 there should be an order-of-magnitude improvement in
the sorting out of the contributions of the atmosphere, tides, and
core-mantIe interaction to the spectra of rotation and polar wow
ble, and we may have the first reliable determination of a change
in the pole path due to an earthquake.
History of l:arth's Crust
The origin and early evolution of Earth might be considered
so remote in time that there is no hope of gaining any mean-
ingful information from measurements made today. However, the
Earth has memories on various time scales and ancient rocks do
exist. There are also objects in the solar system of various ages
and at different stages of development that provide information
complementary to earth-derived data.
What constraints do we have? The most obvious constraint
is the age and composition of the oldest rocks. These rocks show
that water was present on the surface of the Earth and a magnetic
field existed at about 3.8 eons BP. The presence of ultramafic
komatiites in the Archaean suggests that the mantle was hotter
at that time than it is now, or else that it was easier for high-
density magmas to reach the surface. Isotopic data show that
the Earth was separated into chemically distinct reservoirs in its
early history. The decay of the radioactive isotopes of potassium,
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Relation of Physical and Biological Earth History
From the perspective of the solar system, the Earth appears
to be unique in its capacity to sustain life. Not only does the
Earth sustain life today, it has done so for at least the last 3.5 bil-
lion years. Organically preserved microfossiTs found in the oldest
known unmetamorphosed sedimentary rocks document the early
evolution of bacterial communities containing morphologically dii-
verse organisms. Stromatolites (the sedimentary-free fossils of mi-
crobial mat communities) further indicate that some early organ-
isms were phototactic, and stable carbon isotope ratios in kerogen
strongly suggest a carbon cycle driven by photosynthesis. Indeecl,
the evidence available from paleontology, geochern~stry, and mi-
crobiology suggests that anaerobic biogeochemical cycles were well
established by the time the Earth's oldest surviving sedimentary
rocks were deposited.
Metabolism links biology closely to atmospheric science. Or-
ganisms both produce and consume gases, thereby affecting the
composition of the atmosphere. Not only is atmospheric oxygen re-
lated to the evolution of cyanobacteria and (later) algae and green
plants, but many other important gases such as nitrous oxide (a
product of bacterial ammoniac oxidation and nitrate reduction)
and methane (a product of bacterial methanogenesis) owe their
presence to biogenic processes that track back to the Archean
diversification of bacteria. Evolutionary innovations in biologi-
cal structure and physiology may have had profound effects on the
Earth's radiation balance, climate, rates of surface weathering and
erosion, and the rates of deposition, diagnosis, and distribution of
sediments. The extent to which our planet's surface, hydrosphere,
and atmosphere have been altered by life throughout its history is
a scientific problem of major theoretical and practical significance.
Global Biota: Revelations Tom Space
Nearly 4 billion years of evolution have produced a diverse
biota estimated to include as many as 10 million distinct species.
These species are not distributed randomly across the planetary
surface; rather, they are organized into an ecological hierarchy
based on biological interactions of species with similar physical
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tolerances. Local, recurrent associations of species form commu-
nities that interact with the physical environment to form ecosys-
tems. Congruent ecosystems can be grouped in bigger units called
biomes, characterized by similarities in plant growth forms, com-
munity structure, and productivity, among other things. Some
biomes, such as the Great Plains grasslands, have a high capac-
ity for primary production and so are crucial to the support of
the human population. Others, such as the Arctic tundra biome,
are less productive, but are believed to contain large quantities
of organic carbon in their soils and may be sensitive indicators of
global changes in temperature or pollution levels. The areal extent
of biomes, gas fluxes into and out of them, and their mean primary
productivity are very imprecisely known at present; however, be-
cause blames have spectral properties that permit identification
and analysis by remote sensing, the perspective from space makes
possible the detailed global analysis of blame distribution and
Global ecosystem analysis, especially of agriculturally impor-
tant systems, will provide information prerequisite to the scientific
estimation of the Earth's capacity to support the growing human
population. Analysis of forested biomes, especially the tropical
rain forests that are increasingly being destroyed, Is essential for
efforts to understand the changing carbon dioxide content of the
atmosphere. There can be no accurate quantitative models of bio-
geochemical cycles and their interactions until such an ecosystem
or blame inventory has been made. Once such data are produced,
a host of hitherto insoluble geochemical and biological problems
will be brought within our grasp. It is clear that we must continue
to monitor the state of the Earth in this context for the indefinite
future, to document changes in biotic regimes as they occur, and
to aid in the development of quantitative models to assess the
impact and origin of changes observed.
Biogeochemical Cycles
The state of knowledge and the crucial significance of water
and the hydrological cycle have been discussed. But the movement
of material through living organisms involves many more elements.
The carbon, nitrogen, phosphorus, and sulfur cycles, to name just
a few, are critical to the mechanisms and maintenance of life on
Earth. The state of knowledge and major problem areas for each
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of these four major cycles are discussed below as a prelude to
determining a strategy for studies in the 1995 to 2015 period.
The task group emphasizes mainly the shorter time scales.
However, the role of plate tectonics subduction and volcanism-
in circulating and remobilizing these constituents may be crucial
to the maintenance of life on Earth on the longer time scales. It
is essential in this context to understand the nature of the forces
responsible for volcanism for the recycling of critical elements such
as carbon. To what extent are the changes in climate characteristic
of past ages of our planet attributable to fluctuations in rates of
cycling of carbon and associated variations in atmospheric carbon
dioxide? The Mission to Planet Earth, with its interdisciplinary
focus, must seek to provide answers to these questions.
According to the NRC report Global Change in the Geosphere-
Biosphere, There is abundant evidence for change at present.
Most obvious perhaps are changes in the composition of the
atmosphere�of CO2, CH4, CO, N2O, NO2, SOL and O3 and
changes in the chemistry of precipitation. There are more subtle
effects associated with altering practices of land and energy use,
and of waste disposal. Anthropogenic changes are superimposer]
on natural fluctuations, and it is difficult to separate the anthro-
pogenic from the natural changes that are taking place today.
There are clues, however, from the record of the past.
"An impressive body of information has accumulated recently
to suggest that fluctuations in CO2 may have played an important
role in regulating at least some of the major changes in climate
of the past. The level of CO2 was approximately 200 ppm during
the last Ice Age. It rose by about 50 percent, to approximately its
present value, in only a few thousand years, 10,000 to 12,000 years
ago, ushering in the present interglacial period.
"We can reconstruct the history of CO2 back to about 60,000
years before the present using air trapped in bubbles in ancient
ice preserved in Greenland and in Antarctica. A more indirect
technique, based on analysis of the isotopic composition of carbon
in the carbonate skeletons of marine organisms In ocean sediments,
has allowed us to extend the record even further, to about 400,000
years ago. The correlation with climate ~ striking. High CO
invariably associated with warm conditions, low CO2 with cold;
and indeed, changes in CO2 appear to precede changes in climate.
Carbon dioxide is but one of several gases with the potential
to rape the temperature of the Earth. Infrared radiation from
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the planetary surface is also absorbed and reradiated by methane
(CH4), nitrous oxide (N2O), and O3 and by the industrial halocar-
bons, CF2CI2 and CFCI3. On a molecule-per-molecuTe basis, these
gases are much more efficient than CO2 in altering the radiative
balance of the present Earth, and their concentrations are also
changing. Their cumulative effect on climate over the past several
decades may be comparable with that of CO2."
The Carbon Cycle
As was pointed out in Part IT of the CES strategy: "There
are two central chemical processes in the carbon cycle: aerobic
oxidation and anaerobic oxidation. Increases in the rate of aerobic
oxidation are the probable cause of the observed increases in at-
mospheric CO2; increases in the rate of anaerobic oxidation may
be the cause of the observed buildup of CH4. The case of CO2
exemplifies many of the limitations in our current understanding
of global cycles as well as important gaps in current data sets....
"The possible effects of human interference with the natural
cycle of carbon by burning fossil fuels, harvesting forests, and
converting land to agriculture are reflected most clearly by the
phenomenon of increasing concentration of atmospheric CO2 [see
Figure 2.44. If current trends continue, the atmospheric concen-
tration will exceed 600 parts per million by volume by the year
204~more than 2 times the preindustrial level. The increase in
CO2 is important because, in contrast to atmospheric O2 and N2,
CO2 absorbs infrared radiation emitted by the Earth and prevents
the escape of some of the normally outgoing radiation. This is
known as the 'greenhouse' effect
high efficiency on Venus.
, a phenomenon operating with
"At present, our ability to interpret the carbon cycle and thus
predict future CO2 concentrations is confounded by unresolved im-
balances in the carbon budget. Simply stated, the annual budget
does not balance unless (1) fertilization effects, either terrestrial
or aquatic, partly offset deforestation minus regrowth, (2) the im-
balance diminishes from reductions in the estimate of the rate of
deforestation or increases in the regrowth, (3) the oceanic uptake
is underestimated, or (4) there are natural variations in the global
rate of carbon uptake by the biota that are not yet recognized."
Methane is the second most abundant form of carbon in the
atmosphere. Its presence reflects the importance of localized media
OCR for page 16
a 290
270 ~ 1 1 ~ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ~ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ~ 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1700 1750 1800 1850 1900 1950 2000
MEAN GAS AGE (yr AD)
FIGURE 2.4 Measured mean CO2 concentration plotted against the esti-
mated mean gas age. The horizontal axis of the ellipses indicates the close-off
time interval of 22 yr. The uncertainties of the concentration measurements
are twice the standard deviation of the mean value, but not lower than the
precision of 1 percent of the measurement. The dotted line represents the
model-calculated back extrapolation of the atmospheric CO2 concentration,
assuming only CO2 input from fossil fuel. Atmospheric CO2 concentrations
measured in glacier ice formed during the last 200 years calibrated against
the Mauna Loa record for the youngest gas sample.
SOURCE: Neftel et al., Nature, volume 315, pages 45-57, 1985.
where oxygen is deficient, as in swamps and the soil of rice paddies,
for example, or in the digestive tracts of ruminants and a variety of
other animals, including termites. Its abundance is now increasing
at a rate of about 2 percent per year. The concentration in the
atmosphere appears to have doubled since the sixteenth century.
Why? How will it vary in the future? What was its level and scale
of variation in the past?
The Nitrogen Cycle
The NRC report Global Change in the Geosphere-Biosphere
noted that Nitrogen occurring in compounds as single atoms
(fixed nitrogen) is chemically versatile and essential for life, with
a range of oxidation states from -3 to +5. Processes that break
the N-N bond (nitrogen fixation) are relatively slow, amounting
OCR for page 16
to less than 0.2 x 10~5 g/yr of N. Recombination of fixed nitrogen
to form N2 is also slow, owing largely to the kinetic stability of
inorganic, fixed nitrogen (NH4+, NO2-, NO3-) in solution. The
recombination reaction Is carried out biologically by bacteria using
NO3- and NO2- as electron acceptors (denitrification). Denitrifi-
cation takes place in anoxic, organic-rich locations such as flooded
soils and estuarial sediments, bottom waters of some deep ocean
basins and trenches, and in low-oxygen or anoxic waters at in-
termediate depths in coastal upwelling regions. Denitrification is
essential to the preservation of the present regret of atmospheric N2.
In the absence of biological processes, the atmospheric nitrogen
cycle would be open, leading to accumulation of NO2- and NO3-
in the oceans. It is unclear how the global system acts to estate
fish a balance between fixation and denitrification. Mechanisms
directly coupling nitrogen fixation to denitrification have not been
identified, and indirect connections are not obvious.
Nitrogen is cycled through the biosphere at rates 10 to 100
times as large as the rate for fixation of N2. Inorganic fixed nitro-
gen (NH4+, NO2-, NO3-) ~ assimilated into terrestrial biomass
at a rate of about 3 x 10~5 g/yr of N. but this influx ~ balanced
by decay of organic material. The rate at which inorganic fixed ni-
trogen is consumed and recycled by biota in the oceans Is roughly
2 x 10~5 g/yr of N. with a large uncertainty. Internal cycles of
mineral and organic nitrogen are essential links in the life-support
system of the planet."
The supply and distribution of fixed nitrogen thus affect not
only the biosphere's productivity, but also the chemical and radi-
ational environments for life. Changes in the abundances of atmo-
spheric nitrous oxide and nitrogen oxides attest to the importance
of contemporary changes in the biogeochemistry of nitrogen. How
did levels and distributions of fixed nitrogen vary in the past and
how did they relate or act to influence the climatic and biospheric
condition of the planet?
The Phosphorus Cycle
Part II of the CES strategy pointed out that Phosphorus Is
an essential element for life. It is relatively abundant in the crust
of the Earth, but it exists principally as insoluble minerals (ap-
atite, iron phosphates) or as absorbed phosphate. These forms are
not available for biological uptake, and consequently, phosphorus
OCR for page 16
is often a limiting nutrient in soils, lakes, and perhaps even ma-
rine systems. Atmospheric transfer processes are unimportant for
phosphorus, in contrast to carbon, nitrogen, and sulfur. Rather,
the major phosphorus exchanges are associated with dissolved and
particulate transport in rivers, and with weathering processes and
diagensis in soils and sediments. There are thus important con-
nections between the hydrologic cycle and the phosphorus cycle.
"Most of the phosphorus in rivers is insoluble and biologi-
cally unavailable, and there are major questions about the actual
fraction of river-borne phosphorus that manages to participate in
the biological cycle and the time scale for effective transfer from
rivers to the oceans.... Additional uncertainty Is associated with
storage of phosphorus in estuarine and coastal sediments.
This latter issue is important since this phosphorus could be
mobilized during epochs of low sea level (e.g., during glaciation)
and delivered to the ocean where it could be responsible for an
increase in biological productivity and a consequent drop in carbon
dioxide. What determines the level of oceanic phosphorus? How
has it varied in the past? What factors are responsible for change
in oceanic phosphorus and what are their consequences?
The Sulfur Cycle
Sulfur is also an essential element for life, but unlike nitrogen
and phosphorus it Is rarely limiting. It exists, like nitrogen, in a
variety of oxidation states, from�2 in sulfides to +6 in sulfates,
and is cycled among these states by the biota, by volcanoes, by
combustion of fossil fuels, and by atmospheric reactions.
As noted in Global Change in the Geosphere-Biosphere, "sulfur
enters the atmosphere in two dominant ways. Combustion of fossil
fuels adds sulfur in the form of SO2. Microorganisms in soils and
in the surface waters of the ocean putatively contribute additional
amounts in the form of (CHARS, H2S, and other reduced sulfur
gases, but the precise amount is unknown and controversial. These
reduced gases are oxidized to SO2 on time scales of hours to days.
Anthropogenic and natural inputs of SO2 to the atmosphere are
apparently comparable in amount.
"The SO2 is oxidized to sulfate and in this way removed
from the atmosphere on time scales of several days. The sulfur
oxidization processes depend on atmospheric levels of the OH
OCR for page 16
radical and thus on the abundances of atmospheric 03, H2O,
nitrogen oxides, and hydrocarbons.
din the soil and in the ocean photic zone, sulfate is taken
up by plants and microorganisms. The sulfur is then recycled
to the atmosphere through processes of decay; some accumulates
in organic matter in ocean sediments. On geologic time scales,
sedimentary sulfur is returned to the ocean-atmosphere system
through volcanism."
In addition, Part IT of the CES strategy states that "for the
sulfur cycle, there is a need to identify and quantify the anthro-
pogenic and biological fluxes of reduced sulfur gases and determine
whether these fluxes are subject to change. A far better under-
standing of the atmospheric chemistry of the reduced sulfur gases
and the SO2 from combustion is also needed. Of particular con-
cern in this chemistry are the roles of heterogeneous reactions, the
coupling to atmospheric nitrogen and carbon chemnstry, and the
mechanisms for dry and wet deposition. Finally, we require far
more information on the manner in which sulfuric acid deposition
affects the biology and geochemistry of terrestrial ecosystems."
The external information needed to mode} these processes in-
cludes the major biological sources and sinks of organic carbon
and active nitrogen, and inputs of sulfur and other compounds
from volcanic activity. Urban pollution is a topic all by itself, but
is a major regional source of tropospheric ozone, oxides of nitro-
gen, sulfur dioxide, and other ingredients of larger-scale problems
like acid rain. Also required is information on the transport and
mixing capacity of the atmosphere. Clouds play a key role in cat-
alyzing certain reactions and in scavenging water-soluble products
in precipitation. Although in principle the atmospheric transports
and cloud fields are available as part of the modeling and data
base of the physical climate system, in practice, considerable addi-
tional effort is required to make them useful for chemical purposes.
Just as unportant are the internal measurements, which give guid-
ance as to which chemical processes are most significant, and give
confidence that they are being modeled correctly.
Human Activities
There are concerns about both (1) human effects on the en-
vironment, and (2) effects of natural phenomena on man. Both
OCR for page 16
are exacerbated by growing population, and industrial and agri-
cultural development. The basic scientific issues of biogeochemical
interaction have been discussed above; the global issues and nec-
essary measurements will be discussed in Chapter 3.
A global understanding of the Earth entails explanation of
why it is different from other planets. These differences arise
from a relatively few fundamental properties mass, composition,
distance from the Sun, rotation rate but often the secondary
manifestations are greater than expected. Furthermore, the other
planets must be considered in any meaningful consideration of the
Earth's formation, which constitutes the starting conditions for
the Earth's evolution.
At least eight bodies in the solar system seven planets and
one satellite have significant atmospheres whose dynamics and
chemistry should be explained by any comprehensive theory of at-
mospheres. Dynarn~cally, the atmosphere of Mars is most similar
to the Earth's, in that it is a relatively thin fluid envelope around
a rapidly rotating rocky planet, subject to marked seasonal varia-
tions because of an appreciable tilt of the rotation axis to the orbit
axis. Mars, like the Earth, has cyclonic systems of weather and,
on a much longer time scale, appears to have undergone glacial
waxing and waning. But beyond confirming a few fundamentals,
Mars does not contribute significantly to the solution of prom
lems regarding the Earth's atmosphere, most notably because it
lacks an ocean. Compositionally, the atmospheres of both Venus
and Mars could have been quite similar to the Earth's with one
striking exception: the much greater complement of primordial
inert gases in Venus, a difference that must be a consequence of
circumstances of formation 4.5 billion years ago. Otherwise, the
examples of Venus and Mars act as strong constraints on theories
of atmospheric evolution: any worthwhile theory must account
for the loss of water from the Venusian atmosphere (most likely
by photodissociation, leading to loss of hydrogen and trapping of
the free oxygen in surface rocks), resulting in the development
of the greenhouse effect, so that the comparable portion of car-
bon dioxide in Venus stays in the atmosphere rather than being
incorporated in the ocean and thence in carbonate rocks.
Pioneer Venus revealed that the high surface temperature of
OCR for page 16
Venus arising from its massive carbon dioxide atmosphere has had
important consequences for the solid planet. Venus undoubtedly
has mantle convection, since it would have incorporated almost the
same energy sources as the Earth. But its rocky surface is quite
lacking in indicators of plate tectonics, such as an interconnected
ridge system like the ocean rises on Earth. Hence the boundary
layer of the mantle convection within Venus must be at depth,
below a basaltic and sialic crust. The entire surface of Venus
may be covered by a continent-like crust; the Pioneer altimetry
indicates that there is only one predominant level of topography,
rather than two, as on Earth.
Venus ~ also significantly different in that it has no magnetic
field. It certainly differentiated an iron core, but if the pressure
is too low and the temperature too high no inner core will form,
thus eliminating a possible energy source for a geodynamo. These
marked differences of the planet most similar to the Earth in
size and composition act as unportant constraints on models of
the early evolution of the Earth including crustal formation, out-
gassing, and other events of the early Archean, more than 2.5
billion years ago.
Constraints of a somewhat different sort in understanding the
Earth arise from consideration of its formation. Moon rocks and
meteorites indicate, by their radiological ages, that formation of
all the planets took place within a few 10 million years some 4.57
billion years ago. The retention of abundant hydrogen and helium
by Jupiter indicates that it was quite massive before the forma-
tion of the terrestrial planets was markedly advanced. Hence,
the dynarn~cal circumstances of terrestrial planet formation were
dominated by the gravitational influence of Jupiter, which prow
ably was important in inducing growth to only four planets plus
a satellite, rather than a larger number of smaller bodies. This
growth pattern probably led to the terminal stages of formation
being characterized by a few great impacts. Important evidence
of that includes the differences in rotation rates and inert gas re-
tention between Venus and the Earth, and the anomalously low
iron content of the Moon. It is the current consensus that the
Earth was probably hit by a very large body perhaps bigger
than Mars which led to the lifting off of the material that made
the Moon, and which removed virtually all of any primordial at-
mosphere from the Earth. Consequently, the Earth formed very
OCR for page 16
hot, leading to early core separation and outgassing of the atmo-
sphere and ocean. A likely by-product of that was formation of a
crust that was similar to the Moon's. Another consequence of the
hot beginnings of the Earth was obliteration of any evidence of
this crust. The lunar crust is 10 percent of the mass of the body.
By contrast the terrestrial crust is less than 0.4 percent.
Another application of comparative planetology to Earth his-
tory is the record of cratering on the surfaces of the Moon, Mars,
and Mercury. This record indicates that throughout this history
there has been a sporadically declining infall of bodies, a few siz-
able enough to have global effects catastrophic for major parts of
the biosphere. Firm chemical evidence of such effects has only
recently been deduced: most notably, the marked iridium spike at
the horizon marking the end of the Cretaceous period 60 million
years ago.
The history of the Earth shares many common threads with
the histories of one or more of the other inner planets, includ-
ing early global differentiation of crust and core, outgassing and
evolution of the atmosphere, early bombardment of the surface
by a heavy flux of meteoroids, and development of a global mag-
netic field and magnetosphere. The Earth has many attributes
not shared, however, with any other known planet, including its
oceans, the oxidized state of its atmosphere, its tectonic plate mo-
tions and the consequent complex history of crustal deformation,
and its life forms. A continuing challenge to the earth and plan-
etary sciences is to account for the profoundly unique attributes
of the Earth in the context of the common processes that have
shaped the formation and evolution of the solar system.
Various attempts have been made to use the Earth as a detec-
tor of cosmic, stellar, and solar system events. In order to do this,
however, the Earth itself must be better understood.
Earth is a collector of extraterrestrial particles and thus can
be used to estimate the current meteorite flux. Some have used
extinctions throughout the geologic record to propose periodicity,
or at least episodicity, in the influx rate of larger objects. Mete-
orites falling to Earth are one guide to processes in the early solar
system and processes in small disrupted objects.


text:
Print or e-mail your favorites and plan your perfect visit to NYC today.
Learn more about the five boroughs that make up New York City with our complete guide.
Discover what to do, where to stay and what to see in New York City with our planning tool.
NYC is the place for inquisitive minds looking for new things to see, hear, taste and learn.
Enjoy Shakespeare in the Park, Fourth of July fireworks, the US Open and more.
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3 of 14
Dream Downtown 355 W. 16th St., 212-229-2559, Chelsea, Manhattan Dream Downtown's porthole windows, a delightful remnant of the building's past life as home of the National Maritime Union, form a unifying theme throughout this flagship property for hotelier Vikram Chatwal's boutique chain. Spherical lighting, circular-patterned upholstery and round fur-lined ottomans are just a few of the hotel's curvy features. Cutout, bubble-like peekaboo windows on the ceiling of the lobby give guests a glance at swimmers overhead in the heated lap pool, open year-round, one flight up. Considering the clubby draw of this Dream location—the indoor-outdoor rooftop bar, PH-D, is a popular hotspot, while the subterranean, Brit-rock–themed Electric Room is even more exclusive—guest rooms are decidedly serene. No music is playing when you walk in, and patchwork Persian rugs lend a homespun warmth to the uber-cool surroundings. Artwork throughout the hotel is curated by Indiewalls, giving exposure to local artists, and is available for sale, too. All guests can enjoy the lobby-level Marble Lane steakhouse and bar—serving breakfast, lunch and dinner—and the new Japanese-French-fusion restaurant Cherry, with an opulent dining room designed by Studio Gaia.

subset: commoncrawl


text:
A Day in the Life of Boomer
New little sisterMarch 5th 2006 7:56 am[ View A Comments ] Skye came home this morning, another puppy, I met her and we had a sniff of each other, but I'm getting a bit old to play with puppies, I'll leave that to Bertie. She's ok and as long as she doesn't play tug with my fur I'm sure we'll get along fine. |
Boomer Family Pets
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Scott went to Roslindale yesterday and was marched in with the Boston Fire Department bagpipers. Scott not only gets that these are his swing voters, but he genuinely enjoys them, there is no forced affection here. Want to know why Scott is leading Elizabeth Warren. You need nothing further than this video.
To post this comment click here:
Otherwise click cancel.


text:
Talk:Nurse Joy's Chansey
From Bulbapedia, the community-driven Pokémon encyclopedia.
List of moves
Shouldn't we put a list of moves that they used, and for Jenny's Growlithe also? Like Chansey used Egg Bomb in One Big Happiny Family!. --Theryguy512 12:13, 13 November 2007 (UTC)
Great Idea! I'll Get right on it
Recently Used Moves
I don't think we should have these for Chansey, since they are multiple Chansey.--Burgundy 18:28, 5 February 2011 (UTC)


text:
By: Double fine productions Available: January 23rd 2012 Platform: PC (Steam), Xbox Live, PlayStation Network and Wii U shop The Cave is a new adventure platform game where you assemble a team of 3 from a choice of 7 different characters. • The Knight • The Hillbilly • The Time traveller • The Scientist • [ Read More ]
Dragons Dogma is getting a playable demo, it's available today for all Xbox360 and North American PS3 gamers, and then tomorrow for European PS3 gamers. The demo will allow you to create 3 different characters and experience 2 different skill sets which you'll use to take on different beasts. The Fighter is a melee specialist [ Read More ]
Some games tackle re-life problems with over the top action, hundreds of aliens and battles which look impossible…. Traffic Wonder tackles a real life problem in a more dignified way…… as this game is all about fuel. Traffic Wonder is a puzzle game where you need to get coloured cars into their respective coloured building. [ Read More ]
Last night Capcom confirmed Dragon's Dogma will have a playable demo available just before it's release on the 25 May 2012. The demo will include 2 playable character classes and include its full in-depth character customisation. Here's what Capcom said: With your party of three Pawns, experience the different styles of two of the game's character [ Read More ]
Epic Games…….As soon as those two words are mentioned in any form of game development, my interest is most certainly always piqued. Of couse being one of the biggest and most extravagent dev teams, known for pulling out all the stops to please the fans, news of epic's part in the game development would bound [ Read More ]
Last week a demo was released for Ninja Theory's new game Enslaved onto the Xbox Live Marketplace. We had a look at this upcoming action adventure game last week and from what we could tell it was shaping up to be a great game. The demo is out and our first verdict is here………………and its all thumbs [ Read More ]
Last week PlantiumGames released a demo of Vanquish to give us a taste of what this game has to deliver and it doesn't disappoint. This is a high octane game where speed and cover is everything. If you didn't read our preview post then click here to get more details about this game and watch gameplay before reading [ Read More ]
Last week I wrote a post about the upcoming squeal Dead Rising 2, if you didn't read that then click here. Dead Rising Case: Zero is a prologue to Dead Rising which is coming out on the 24th of September. It is only available on the Xbox Marketplace and can be yours for 400 Microsoft points. It starts with Chuck and his daughter Katey pulling into a gas station to fill up and [ Read More ]
So I am gonna start and say I have seen a few trailers showing the gameplay of this game and it looks like "Gears of War on Speed" and I really mean that. Watch this trailer and tell me what you think? Trailer: Gameplay Footage: This game is being made by PlantiumGames and Resident Evil [ Read More ]


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WNBZ News – 7am Podcast – 080613
WNBZ News – 7am Podcast – 080613
A Bonding Resolution is Approved and will provide financing for desperately needed work on a sewer trunk line in Saranac Lake.. We spoke with Village Manager John Sweeney who explained the project. AUDIO – 080613 – Saranac Lake Sewer Trunk Line – Bonding Resolution Now that Bonding for the project has been approved, the village…
K&J – 062113 – Alzheimers Disease Assistance Center – Kenna Lapport
The Alzheimer's Disease Assistance Center Based at Plattsburgh State University is now in it's 25th year. We speak with Licensed Mental Health Counselor Kenna Lapport about the disease and their new "Third Age Care Center" moving from the Adult Center to The Lake Colby School.
Another waterfront revitalization project breaks ground in Tupper Lake… We speak with Mayor Paul Mauroun and Supervisor Roger Amell about the new Playground.. The Village and the Town of Tupper Lake have combined efforts with consultant Melissa McManus to develop an overall plan for waterfront revitalization. The new playground is just one of the projects…
Congressman Bill Owens weighed in on the Affordable Care Act and Medicare at a recent telephone town hall meeting with constituents. We listened in on the conversation.
Sports Medicine is a big part of athletics in the region, including Rugby Weekend.. We speak with Dino Angelopolous about their work..
Birthday Club 080513
Talk of the Town 080513
WNBZ News – 7am Podcast – 080513
Can Am Rugby's top honors goes to Caves and Ditches, a team of Temple University Alumni Ruggers who took on Buffalo at the Finals in Bloomingdale on Sunday..
K&J – 073113 – Michelle Clement on Tupperpalooza "TUPPERPALOOZA" is set to begin this weekend with the Warrior Run at Big Tupper, which is where we caught up with Events Coordinator Michelle Clement and spent some time talking about the obstacles entrants will face and the rest of the activities throughout Tupper Lake over the…
This gallery contains 30 photos →
Talk of the Town – 080213
WNBZ News – 7am Podcast – 0080213
Today on the K&J Show we're speaking with ARTA's Dick Beamish. They're getting ready for NYSDOT public hearings on modifications to the Rail Corridor's Unit Management Plan.
Talk of the Town 080113


text:
Results 151 to 166 of 166
Thread: SpideyCreed's Sketchbook ! :3
July 13th, 2013 #151
Kingkostas ==> Thanks again for support !!!
New stuff :
Bad landscape study, I have difficult with the details ...
A sketch :
WIP, I don't like it
Hide this ad by registering as a memberJuly 15th, 2013 #152One critique I can note for now is that you seem to be often shading tight details but the entire form (underlying shape) remains a bit flat. This makes it look like an engraving on a flat image, instead of a real 3d object. Try dropping the details for a while in those color studies and focusing first on making the big massive shapes look 3 dimensional.
And I mean that, just try drawing big blocky primitive forms for a while and make them look like they live in the space.
Sketchbook - freakmod wants to learn how to draw really well
July 19th, 2013 #153Hey CA !
Freakmod ===> Thank you so much for the answer ! You're totally right, it's why I'll reboot my "Green Giant". I'll try to be more aware of the values, and I would like to work it in a more blocky way.
New stuff !
Not a lot these days (only sketches), I was off, in familly :
Outdoor sketches :
Bridgman !
Sketches in the train:
Personal sketch :
July 23rd, 2013 #154Yo' Ca !
New stuff !!
Bridgman !
Gouache study :
A collab with a man on Deviantart, his name is Barush-Dm (http://barush-dm.deviantart.com/), I do the pencil/ink, he does the color !
The Forest Giant (I totally reboot the Green Giant )
July 26th, 2013 #155Hey CA !!
New things :
Nude study :
Interior sketch :
Just a sketch :
July 26th, 2013 #156Those pencil sketches are sweet!
August 5th, 2013 #157SuperKasey ===> Thanks a lot man !!
New stuff... I had problems with my new computer... it is down...
Master study:
Big insect (I really don't like it )
Some sketches
August 16th, 2013 #158Hi there !
New stuff :
Study :
Master Study 2.jpg Views: 102 Size: 396.6 KB" />
Practise page :
Bridgman !
August 20th, 2013 #159HI CA !!!!
New stuff, only sketches because I went to Lyon, at the Zoo !! (and there is also a personal sketch)
August 24th, 2013 #160Hi CA !!
New stuff !
Some sketches from life :
August 27th, 2013 #161Hey CA !!
New (bad ) sketches from life ... :
Wip :
September 1st, 2013 #162Hi CA !!
New stuff !!
Some sketches from life !
Bridgman :
Personal sketch :
I reboot the dragon !!
September 1st, 2013 #163Registered User- Join Date
- Aug 2013
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The Bridgman studies are great!
September 11th, 2013 #164Hi CA !!
Mr Tokoloshe ===> THANK YOU !!!
New stuff (Not a lot of things, I'm currently on something I can't show :-( ) :
Sketch :
Bridgman !!
Values study from life, really bad :/, but I think I'm learning !
October 26th, 2013 #165HI CA !!
New stuff, one month later (I started my Art School... It's not really wonderful) :
Study : (school)
Homeworks for school :
Sketches :
Study (a lil' bit old, I did it in september) :
Personal Work :
November 2nd, 2013 #166Hi CA !!
New stuff
Some (really bad) speedpaint (30min) :
Sketch for a future illustration...
A page for school (the subject was : "Expression change" :


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Devourer of Dreams
1,460pages on
this wiki
this wiki
Devourer of Dreams | |
Aliases | Dreamer |
Home | Dar Jin, Riedra |
Gender | Male |
Race | Inspired |
Class | Psion |
Alignment | LE |
Source: ECS, p. 240 |
The Devourer of Dreams is the leader of the Circle of Night an elite organization within the Dreaming Dark. Also known as The Dreamer the powerful psionic has the ability to commune with the spirits on Dal Quor without being utterly destroyed or absorbed. These spirits guide the Devourer of Dreams' motives which he then in turn distributes to the other agents of the Dreaming Dark.
References Edit
Keith Baker, Bill Slavicsek, and James Wyatt (2004). Wizards of the Coast. ISBN 0-7869-3274-0.


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Data Storage: Solid-State Storage Disks Are Rapidly Replacing HDDs: 10 Reasons Why
It's all too apparent that SSD (solid-state drive) data storage will ultimately replace HDD (hard disk drive) disk storage for all but the most specialized applications. Most people in the IT storage business understand this. It will still take a number of years, but spinning disk storage will eventually give way to the simpler, more efficient solid-state form. The proof is evident: Disk manufacturers Seagate Technology, Western Digital, Samsung, Toshiba, Intel, Micron Technology, Hynix, SanDisk and LSI Logic are just some of the companies producing improved NAND flash disks as the next generation of storage begins to take shape. They are selling them to a list of storage system makers including EMC, IBM, NetApp, Hewlett-Packard, Oracle, Fusion-io, Nimbus, Pliant, Schooner and Fujitsu that continue to ramp up their output. NAND flash memory currently serves as the core or adjunct storage for new servers, storage arrays, routers, USB flash drives and mobile devices that include smartphones, the Apple iPad, iPod and iPhone. Here are some specifics on why SSD storage will kill HDD storage. (Source: eWEEK reporting)


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| UpdatedZimbabwe is asking its African neighbours for $14b to rebuild its economy.
Topics: world-politics, international-aid-and-trade, zimbabwe, madagascar, swaziland
Supporters of both the ousted former Madagascar president Marc Ravalomanana and the man who replaced him have held demonstrations in the country's capital, Antananarivo.
Topics: unrest-conflict-and-war, world-politics, madagascar
| UpdatedMadagascar's ousted president has renewed calls to his supporters to strengthen their movement against the country's transitional regime.
Topics: world-politics, government-and-politics, unrest-conflict-and-war, madagascar
| UpdatedThirty-four people have been injured in Madagascar's capital during protests by supporters of former president Marc Ravalomanana.
Topics: world-politics, government-and-politics, unrest-conflict-and-war, madagascar
| UpdatedThe newly inaugurated president of Madagascar, Andry Rajoelina has been sworn into office, but shunned by the international community after ousting the former elected leader.
Topics: government-and-politics, madagascar
| UpdatedJubilant supporters have cheered on the installation of Madagascar's army-backed new leader Andry Rajoelina.
Topics: world-politics, unrest-conflict-and-war, madagascar, united-states
The United States has said it would suspend all non-humanitarian aid to Madagascar after Opposition Leader Andry Rajoelina's took power with the support of the army in what Washington regards as coup.
Topics: world-politics, relief-and-aid-organisations, unrest-conflict-and-war, madagascar, united-states
| UpdatedThe African Union has suspended Madagascar, the strongest condemnation yet by the international community after opposition leader Andry Rajoelina took power.
Topics: unrest-conflict-and-war, world-politics, madagascar
Madagascar's acting president Andry Rajoelina has suspended parliament as the international community slammed his army-backed rise to the helm of the Indian Ocean island as undemocratic.
Topics: unrest-conflict-and-war, world-politics, madagascar
Madagascar's constitutional court has approved the handover of power to Opposition Leader Andry Rajoelina but he will have to overcome several hurdles before his leadership is secure.
Topics: world-politics, government-and-politics, courts-and-trials, unrest-conflict-and-war, madagascar, france, zambia
Madagascar's new President, Andry Rajoelina, has celebrated and consolidated power after being appointed by the Indian Ocean island's military in a move that drew international disapproval.
Topics: world-politics, government-and-politics, madagascar
| UpdatedMadagascar's Opposition Leader Andry Rajoelina is set to become the country's new leader after being endorsed by the military.
Topics: world-politics, government-and-politics, madagascar
| UpdatedMadagascar's President has resigned after losing a long struggle to remain in power.
Topics: world-politics, unrest-conflict-and-war, madagascar
| UpdatedThe seven-year rule of Madagascan President Marc Ravalomanana appears doomed now the army has seized his office.
Topics: world-politics, unrest-conflict-and-war, madagascar
A Madagascan soldier loyal to opposition leader Andry Rajoelina takes up a position during the take-over of the office of President Marc Ravalomanana in Antananarivo on March 16, 2009. Soldiers surrounded the presidential compound in the capital after dusk and moved in after a military official using a loudspeaker ordered all remaining guards and staff still inside to leave, an AFP correspondent reported.
Topics: unrest-conflict-and-war, madagascar
| UpdatedMadagascar's army has stormed a presidential palace in the capital Antananarivo, but the president was not home.
Topics: unrest-conflict-and-war, world-politics, madagascar
Madagascar's opposition leader Andry Rajoelina has called for the security forces to arrest President Marc Ravalomanana so he could take power in the Indian Ocean island.
Topics: unrest-conflict-and-war, world-politics, madagascar
Embattled Madagascar President Marc Ravalomanana said he would submit to a "referendum" to settle a deadly stand-off which has riven the Indian Ocean island for months.
Topics: world-politics, madagascar
| UpdatedHailed by 5,000 supporters outside the Indian Ocean island's seat of power, Madagascar's President Marc Ravalomanana insisted he will never resign despite months of deadly unrest.
Topics: world-politics, madagascar
| UpdatedMadagascar's opposition claims to have toppled the Government and taken control of the army, but President Marc Ravalomanana insists he is in charge despite months of deadly unrest.
Topics: world-politics, unrest-conflict-and-war, madagascar
| UpdatedThe Madagascar opposition says it had toppled the Government of President Marc Ravalomanana.
Topics: world-politics, madagascar
| UpdatedDissident soldiers in Madagascar say they have deployed tanks in the capital and they will use them to fight any mercenaries hired in a power struggle that has killed 135 people on the Indian Ocean island.
Topics: world-politics, unrest-conflict-and-war, madagascar
| UpdatedTwo supporters of Antananarivo Mayor Andry Rajoelina take refuge behind a container as the police fire tear gas after a rally in the main avenue of the Madagascan capital Antananarivo on February 16, 2009.
Topics: police, unrest-conflict-and-war, madagascar
Madagascan police shot dead at least 23 supporters of opposition leader Andry Rajoelina overnight as they tried to march on a palace of President Marc Ravalomanana during a protest.
Topics: unrest-conflict-and-war, world-politics, madagascar
The Madagascan capital has been deserted as residents heeded a call by the city's mayor to turn it into a ghost town after anti-government protests that have killed at least 68 people.
Topics: unrest-conflict-and-war, world-politics, madagascar


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All Cheats & Hints
Minority Report: Everybody Runs Cheats :
This page contains Minority Report: Everybody Runs cheats list for X-BOX version. Now we have 1 cheats in our list, which includes 1 password. We hope information that you'll find at this page help you in playing Minority Report: Everybody Runs on X-BOX platform. If you didn't find needed cheats put request or ask question about this at special section of the game. Also you can subscribe on all new cheats that we'll find for you in the future!
Password - Minority Report Cheats
by ninelivesoffp Aug 09, 2010
On the main menu go into special adn on to cheats and enter the codes below !
Cheats - Secret level
by cGub Dec 08, 2006
On the level everybody runs go to the left and jump on thhe sloped bit then jump on to the bridge and then you have acsessd a special area that you can never get to. P.s. Have a very happy chrismas |
Minority Report: Everybody Runs Cheats: |
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Uyuni - Salar - Tupiza - An incredible four days
Trip Start
Aug 23, 2006
Trip End
Dec 23, 2006
Where I stayed
We started out on our 4 day tour by loading up the Land Cruiser with our stuff, our food for the next few days, two spare tires and finally we picked up our cook...who was a squatty old woman but pretty funny. First stop was a railroad graveyard where they actually have the cargo train that Butch Cassidy and the Sundance kid robbed from...you can still see the bullet holes. Becca had a bit of difficulty climbing around the train and had to get bandaged up on her arm, her foot and her stomach after scracthing herself on the rusty metal. After that the famous Salar...or salt plains. The Salar de Uyuni is the larger salar in the world...and given the vastness of it, you can take some pretty good photos that play tricks on the eye. We also visited an "island" in the middle of the salar which was ouf first lunch stop. The food was great...fresh llama and vegatables. After a couple more stops, we left the Salar and came to our first overnight stay. The rooms were tiny but the town was friendly. We walked to the main square and met some locals who laughed at how tall the women were in our group. Played some soccer and then back for dinner and drinks. Up early the next morning for more sites...including an active volcano, tons of flamingos and the highest point on our trip...5000 meters, or over 18,000 feet. I was pretty much out of it the second day...an ear infection and the altitude gave me some serious problems. Our overnight stay was a large room with 6 beds...I popped an ambien as soon as we arrived and slept for 10 hours. Felt much better the next day which included some great sites including a thermal bath, some fantastic lakes and a brief stop in Chile where we said goodbye to Becca and Kat. Sad to see them go...but nice to have more room in the truck! Lunch stop was an amazing oasis in the middle of nowhere and there were tons of lamas eating around us as we ate. Our overnight stop was similar to our first night...a small town. But this one had a market which we got the guy to open for us so we could buy some beer and wine. The market was bascially the size of a closet and he didnt have much to offer...but it was fine for us. The next morning we passed within 30 minutes of San Vincente which is where Butch Casidy and the Sundance Kid where killed and burried. We begged our driver to stop by...but we didn't have enough fuel. The road into Tupiza was spectacular...just some incredible rock formation. You really felt as if you were in the old west...amazing. Arrived into the Tupiza, got the last two rooms in the Hotel Mitru and immediately jumped into their pool to wash 4 days of road grime off us. We only had one shower in those four days...plus the dip in the thermal baths...but even though the pool was cold, it was a welcome relief.
Until then...all is well in Tupiza.


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The Refugio One Act Play Group will present one of the great classics of world literature, Victor Hugo's novel, "The Hunchback of Notre Dame."
The cast and crew from RHS will bring to life some of the most memorable fictional characters ever created. The characters include the pitiable but good-hearted bell-ringer of Notre Dame Cathedral, Quasimodo; the vain and handsome Captain Phoebus; and the villainous Dom Claude Frollo.
The performers will bring to life the temperamental poet Pierre Gringoire; the colorful beggars of Paris, and the beautiful, innocent naive gypsy, Esmeralda, whom they all love.
"The audience will enjoy scenes from the rollicking Festival of Fools; the notorious Court of Miracles; the torture on the Pillory; a daring rescue; and two thrilling deaths," a spokesperson said. "It will prove to be both entertaining and enjoyable."


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West Bridgewater, MA, USA < change city >
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See All Vendors >
All That Events DJ Up Li...
ALL New England, NH, ME. RI, CT, NY, VT, MA
(978) 204-7364
DJs, Photo Booths, Lighting
1 rating, 1 review, 1 wedding
All That Events is a boutique event company with concierge style service at some of the best prices in the region! We offer: D...
DJ Connection
P.O. Box 1512
Pepperell, Ma 01463, USA
DJs, Ceremony Musicians, Ceremony & Reception
DJ Connection has been Serving New England for 30yrs. As New England's Premier Entertainment Company. we have the experience an...
The Mirage Band
150 Cumberland St.
Manchester, NH 03102, USA
Bands/Live Entertainment, DJs
3 ratings, 3 reviews, 3 weddings
Bob Pratte and Mirage Band are GREAT! They had never played on Peaks Island, but ...
Entertainment Concepts
885 Vfw Pkwy
West Roxbury, MA, United States
3 ratings, 3 reviews, 3 weddings
Another high mark for a great service indeed! We found Entertainment Concepts on ...
Good Times Unlimited
Boston, MA, USA
2 ratings, 2 reviews, 3 weddings
Extremely helpful with song selection and an excellent job at reading the crowd.
Dj Mocha
Newton Lower Falls, MA, United States
2 ratings, 2 reviews, 2 weddings
DJ Mocha was very professional, friendly, flexible, and a great person to work wi...
Lindsey Donato
PO Box 6313
Holliston, MA 01746, USA
2 ratings, 2 reviews, 2 weddings
What can I say, the dance floor was packed all night long!!!
South Shore Entertainment
Boston, MA, United States
2 ratings, 2 reviews, 2 weddings
Patrick the owner and DJ was absolutely wonderful. Very easy to work with and pro...
Victor From Party Time
Providence, RI, USA
2 ratings, 2 reviews, 2 weddings
UNBELIEVABLE, Fantastic, GREAT guy to work with. He breaks down everything to th...
Beat Train Productions
251 Heath St
Unit 111
Jamaica Plain, MA 02130, United States
1 rating, 1 review, 3 weddings
DJ Seth Isaacs of Beat Train Productions is incredible. Based on prior experienc...


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Not one, but two convention-style hotels could be headed to the downtown Abilene area.
Earlier in the year, we reported one of Mayor Norm Archibald's wish-list items for Abilene is a new downtown hotel.
While reaching out for an update on the hotel's progress, we learned there's actually two locations in the area that may soon become hotels, with one being located at the corner of Ambler and Treadaway.
In January, Archibald said he wanted to demolish the old Greyhound bus station and build a convention-style hotel near the Civic Center.
We found out that plan is still in the works, with bids being extended to Nov. 11.
On the flip side, a hotel company, Adoba, previously thought to have its eye on that downtown spot is actually looking to build near the corner of Ambler and Treadaway.
Adoba confirmed they're very optimistic about building in Abilene and are in the early design phase.
The Executive Director of the Abilene Convention and Visitors Bureau Nanci Liles said this is a good move.
"We do lose significant business because we are very limited to the size of conventions we can host," Liles said. "It would be great for the Abilene economy. It would be great to have a first-class convention hotel and people want convenience," she said.
The rep from Adoba said they look forward to presenting the architectural renderings and design to the city in the next 30 to 45 business days.
Here are the facts on that Adoba hotel that could be built near Hendrick:
A rep said it will be upscale enough to host weddings and other special events.
It will have an outside courtyard and bar.
It will use alternative methods of energy; it prides itself on being very "green."
It will feature four types of what the rep calls "eco-luxury suites."


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6 Surabhi Articles
Arijit Singh makes his Tamil debut with Pugazh
4 months ago 0The makers of the film are proud to have the Tum hi ho hit-maker associated with them Bollywood playback singer Arijit Singh has crooned his first… Read Article ▶
Dhanush's Velai Illa Pattadhaari earns Rs 5.18 crore in first day!
9 months ago 0Mayakkam Enna star's VIP takes the box office by storm Dhanush-starrer Tamil action-comedy Vella Illa Pattadhaari (VIP) grossed Rs 5.18 crore on the… Read Article ▶
Velai Illa Pattadhaari review: Dhanush makes you whistle podu!
9 months ago 0With a dash of quirky humour, a slice of romance, a pinch of sentiments and lots and lots of Dhanush makes VIP a stand out mass entertainer Make no… Read Article ▶
Rajinikanth all praises for Ivan Vera Mathiri
1 year ago 0If a superstar like Rajinikanth lauds a film, obviously the filmmakers are going to celebrate Words of appreciation from superstar Rajinikanth have… Read Article ▶
Yogen Shah
Rana Daggubati: Krishnam Vande Jagadgurum is an experimental yet commercial film
2 years ago 3The actor, who has had his share of successes and failures in films, speaks about his soon-to-release Krishnam Vande Jagadgurum In his short and… Read Article ▶
Vikram Bhatt is inspired by 'No One Killed Jessica'!
3 years ago 0And after producing the deadly Hate Story, he is penning a medical thriller, we hear When Vikram Bhatt watched the Rani Mukerji-Vidya Balan starrer… Read Article ▶
More Surabhi


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Tuesday, May 31, 2011
Monday, May 30, 2011
Sunday, May 29, 2011
Saturday, May 28, 2011
Beach Break Fun Day
Epic Board Swap
1. Board #1- Gato Heroi shaped by John Wesley
2. Board #2- Point Concept Midlength
3. B0ard #3- Jake on an Almond log
4. Board #4- John on a self shaped pintail
5. Board #5- Dave on an Almond Midlength
6. Pow wow
Friday, May 27, 2011
Thursday, May 26, 2011
Wednesday, May 25, 2011
Magic Board
I've seriously had the most fun on this board we have on loan from Ryan.
Just took it out to a little reef not too far from my house; it picks up in the hollower parts of the wave and glides so smooth through the flat sections.
Winner winner chicken dinner.
Tuesday, May 24, 2011
Erica Ms. America
I absolutely love this girl and can't spend nearly enough time with her.
Here's to many many many more years with you :)
John Wesley | 7.7 Spacepin
Erica and I met up with John at a nearby beach break that had some remnants of the wind swell hitting.
He took out his newly shaped/glassed 7'7" pintail and was tearing the place apart.
Take a look at what John has going on over at his blog: allshewantsisdiamonds
Monday, May 23, 2011
Sunday, May 22, 2011
Day Trippin'
Saturday, May 21, 2011
Friday, May 20, 2011
Thursday, May 19, 2011
Reefy Lefts
Wednesday, May 18, 2011
Tuesday, May 17, 2011
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Posts (Atom)


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If he didn't psychoanalyze his characters this book would've been around 50 pages. :hahahahaha:
Printable View
I won't say Koontz is like SK but he does spin a good yarn. Just checked out Hideaway and having read the first 100 pages is awesome. My first Dean Koontz book was Demon Seed and even though both versions of the book were different, I have to admit they were pretty interesting. So he isn't bad, it's j7ust that he's different.
I am very proud of my Dean Koontz collection. I don't look for EVERY single one of his books like I do with King, and I'm not a member of his message board. But I still enjoy reading his works.
About to pick up Brother Odd and give it a chew. The one before it (Forever Odd) was brilliant!
Nah, no Koontz fer me, thanx. I've read a couple of his novels, didn't care fer em. Nothng like the King. It's senseless to even compare the two.
When I need a good horror fix (and there's no Uncle Stevie on hand) I read cats like Jack Ketchum, Edward Lee, Ramsey Campbell, some old Skipp and Spector--guys like that. Koontz? Bah.
The only one I really liked was "Twilight Eyes" I did. I did.
I don't think it had a Golden Retriever in it. :wink2:
Watchers was good, but I was young when I read both of them.
...oh shut-up ya fur covered reprobate....:kiss:Quote:
Koontz? Bah.
I loved "Watchers."


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DJ - Unregistered July 11, 2010 8:08 PM Next you'll see Red Bull asking Webber to get out his car and give it to Vettel when he breaks his car, as in the Sterling Moss days 13 agree 2 disagree
michaelE - Unregistered July 11, 2010 8:15 PM Of course they did! This should be a slam dunk! 5 agree 3 disagree
Timmy - Unregistered July 11, 2010 8:21 PM This is a no brainer.They took the piece off Webber's car!When Vettel's wing broke they should have fitted the old one and sent him on his way. There was no decision to be made, there was nothing to think about. If you are treating your drivers equally then the thought of taking the other driver's wing wouldn't even enter your mind. 29 agree 1 disagree
~ ShakaZulu ~ - Unregistered July 11, 2010 8:22 PM 15% of people think Red Bull acted fairly!!!Vettel must have a lot of relatives on this site? 11 agree 1 disagree
sg - Unregistered July 11, 2010 8:25 PM "I had some good battles today,"said Sutil, "but the last one was notfair. Sebastian pushed me off thetrack and I lost seventh place."It's annoying. I don't think that's theway you have to pass with a carthat is two seconds faster," headded. 17 agree 1 disagree
Eagle - Unregistered July 11, 2010 8:36 PM You're in trouble when you believe your own rhetoric and Horner is in a spot of bother. He appears to be bowing to his pay masters preferences whilst trying to pretend that he isn't. It is a little insulting on our intelligence. 12 agree 1 disagree
e1 - Unregistered July 11, 2010 8:58 PM Vettel is only good when his finger is up. He doesn't know how to overtake. Look at the many overtaking fumbles he made today (not to mention Turkey). Webber treated unfairly? - YES. Right thing for Red Bull to do? - YES, so that it would help others to win. 2 agree 1 disagree
anna - Unregistered July 11, 2010 9:11 PM Redbull had mix strategy, if not, they would put both cars in soft tyre. I don't think it's the matter of just or unjust, **** happens and life is never fair, Webber just needs to grow up. McLaren did the same for Hamilton yet his team mate didn't felt betrayed like what Webber felt. And to you who think you just and despice Vettel as reckless full of bad trick kind of driver who doesn't even know how to overtake, you should realize that he climbed up 13 positions from 24 after he had the puncture and still could bag some points! If every driver could do that, we would have much more interesting F1 than what we have now. 4 agree 32 disagree
tel July 11, 2010 9:12 PM no.....but hes not going to say right im off is he.....best car out there....why dont the team make 2 of the same wings plus one spare. Reply Report abuse 0 agree 1 disagree
blzbub July 11, 2010 9:21 PM however they want to treat him, he kept his response untill after he got the job done, hes upped his game, the whole team now need to up theirs, almost as good a response as 'the finger' x 2 Reply Report abuse 1 agree 0 disagree


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Subtotal |
$427.50 |
Step right up to this Pocket Wedding Invitation, part of our Mustache You to Wed design suite! Featuring a whimsical mustache and lips as the main act, this stationery suite captures all the fun and fanfare of a vintage carnival or circus. Stripes, ampersands, and unique frames all make an appearance throughout the designs to help capture your quirky sense of humor.
Coordinating Step Cards Available:
Step RSVP Postcards—Perfectly sized for easy, one-stamp mailing
Step Enclosure Cards—Designed to share your reception details
Step Information Cards—An extra card for additional wedding info
Layout Number |
Size |
INVR-12500 | 5" x 7.875" (folded) |


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Join us in celebrating 60 years of Diabetes Australia – Vic with the Minister for Health David Davis and the Lord Mayor Robert Doyle.
Since 1953 we have been the leading charity and peak consumer body working to reduce the impact of diabetes. From first time campers to diabetes researchers we have reached many thousands of people over the past 60 years. This is an opportunity for the diabetes community to get together and celebrate.