what kind of light is a grow light
an artificial light source
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Grow light A grow light or plant light is an artificial light source, generally an electric light, designed to stimulate plant growth by emitting a light appropriate for photosynthesis. Grow lights are used in applications where there is either no naturally occurring light, or where supplemental light is required. For example, in the winter months when the available hours of daylight may be insufficient for the desired plant growth, lights are used to extend the time the plants receive light. If plants do not receive enough light, they will grow long and spindly. Grow lights either attempt to provide a
Grow light
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Grow light A grow light or plant light is an artificial light source, generally an electric light, designed to stimulate plant growth by emitting a light appropriate for photosynthesis. Grow lights are used in applications where there is either no naturally occurring light, or where supplemental light is required. For example, in the winter months when the available hours of daylight may be insufficient for the desired plant growth, lights are used to extend the time the plants receive light. If plants do not receive enough light, they will grow long and spindly. Grow lights either attempt to provide a
Grow light
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the "number" of photons than the amount of energy contained in the photons. Therefore, plant biologists often quantify PAR using the number of photons in the 400-700 nm range received by a surface for a specified amount of time, or the Photosynthetic Photon Flux Density (PPFD). This is normally measured using mol ms. According to one manufacturer of grow lights, plants require at least light levels between 100 and 800 μmol ms. For daylight-spectrum (5800 K) lamps, this would be equivalent to 5800 to 46,000 lm/m. Grow light A grow light or plant light is an artificial light source, generally
Grow light
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blue. A plant's specific needs determine which lighting is most appropriate for optimum growth. If a plant does not get enough light, it will not grow, regardless of other conditions. Most plants use chlorophyll which mostly reflects green light, but absorbs red and blue light well. Vegetables grow best in strong sunlight, and to flourish indoors they need sufficient light levels, whereas foliage plants (e.g. "Philodendron") grow in full shade and can grow normally with much lower light levels. Grow lights usage is dependent on the plant's phase of growth. Generally speaking, during the seedling/clone phase, plants should receive 16+
Grow light
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scientific studies or field-tested trials using LED grow lights to recommended specific color ratios for optimal plant growth under LED grow lights. It has been shown that many plants will grow normally if given both red and blue light. However, many studies indicate that red and blue light only provides the most cost efficient method of growth, plant growth is still better under light supplemented with green. White LED grow lights provide a full spectrum of light designed to mimic natural light, providing plants a balanced spectrum of red, blue and green. The spectrum used varies, however, white LED grow
Grow light
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Jillian Mapes, "A dramatic opening note on the... [song] ushers in a drum crescendo, followed by a 'Like a Prayer' - style interlude." During the choir-led chorus, Welch sings the lines, "You can't choose what stays and what fades away/ And I'd do anything to make you stay/ No light, no light/ Tell me what you want me to say" over "thundering tribal" beats and harp strings that "grow louder and louder". Lyrically, in the song she's expressing frustration about the state of her fragile relationship and she further tries to keep it together. Ryan Dombal of the website Pitchfork
No Light, No Light
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"The landscape was enormously meaningful to me," she said. "I used to roam around a lot by myself as a child, and when I think of a landscape, I think of the great weight of the sky and how it rests on the earth. And I remember the light. Light is specific to certain places, and what sort of light and landscape formation you grow up with is immensely influential to what you do later on." In 1941, at the age of seventeen, Wilson enrolled at the University of Iowa, where she studied both painting and art history. The department
Jane Wilson
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GUS: Light what?<br> BEN: The kettle.<br> GUS: You mean the gas.<br> BEN: Who does?<br> GUS: You do.<br> BEN: ("his eyes narrowing"): What do you mean, I mean the gas?<br> GUS: Well, that's what you mean, don't you? The gas.<br> BEN: ("Powerfully"): If I say go and light the kettle I mean go and light the kettle.<br> GUS: How can you light a kettle?<br> BEN: It's a figure of speech! Light the kettle. It's a figure of speech! (Qtd. in Billington 90–91) As Billington observes further, This kind of comic pedantry has precise echoes of the great Sid Field – ironically
Comedy of menace
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of snow accumulation. Depending on the time of year, the variety of tree species and the size of the light gap will determine how much light hits the forest floor and what kind of temporal and spatial heterogeneity will form. In the coastal areas of south-eastern Australia, large brown kelp, another kind of canopy, formed by "Ecklonia radiata", dominates the existing temperate reefs. Climate change in the area poses a direct effect on the underwater canopy cover, reducing its overall quality. Climate change is causing patches in the canopy layer and because of this loss of coverage, the understory becomes
Light gap
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frustrated, just flipped it backwards, and in about 35 minutes it became "Light Years", with words and everything. It still has a fairly contagious chorus and melody, but it's just sideways enough to make me happy. McCready on the song: It was originally kind of a different vibe to that song and it kind of sounded like a song I had written before so me and Eddie kind of sat down and jammed on it one day and just two guitars and out of playing for about an hour it turned into what it is now. And it's kind of
Light Years (Pearl Jam song)
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and grooming legs. Additionally all species have five pairs of swimming legs called pleopods or "swimmerets", very similar to those of a lobster or freshwater crayfish. Most krill are about long as adults; a few species grow to sizes on the order of . The largest krill species is the bathypelagic "Thysanopoda spinicauda". Krill can be easily distinguished from other crustaceans such as true shrimp by their externally visible gills. Except for "Bentheuphausia amblyops", krill are bioluminescent animals having organs called photophores that can emit light. The light is generated by an enzyme-catalysed chemiluminescence reaction, wherein a luciferin (a kind
Krill
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chemical fog, broadly classified as silver stain. This kind of fog does not require a fog centre in each silver halide crystal, since they can grow on other substrates other than photosensitive silver halide crystals. Light fogging can occur to the film in the camera because of a defect in the manufacture or use of the camera and is seen as dark areas in the negative which tend to occur over the full width of the film including the margins. Light fogging on a print usually only occurs because of poor control of lighting in the darkroom and is seen
Fogging (photography)
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pigments present. For example, in green plants, the action spectrum resembles the absorption spectrum for chlorophylls and carotenoids with absorption peaks in violet-blue and red light. In red algae, the action spectrum is blue-green light, which allows these algae to use the blue end of the spectrum to grow in the deeper waters that filter out the longer wavelengths (red light) used by above ground green plants. The non-absorbed part of the light spectrum is what gives photosynthetic organisms their color (e.g., green plants, red algae, purple bacteria) and is the least effective for photosynthesis in the respective organisms. In
Photosynthesis
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Traveling Light (1944 film) Traveling Light () is a 1944 French drama film directed by Jean Anouilh, starring Pierre Fresnay and Blanchette Brunoy. The narrative is set in 1931, when a man with amnesia tries to recover his memories from World War I, in order to find out what kind of man he really is. The film is based on Anouilh's 1937 play with the same title. Just like with Jean Cocteau, World War II gave Jean Anouilh the opportunity to advance in the French film industry. Anouilh had written dialogue for several films in the 1930s, but "Traveling Light"
Traveling Light (1944 film)
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of Photometry," which is a way to measure how much or what kind of street lighting is needed. The Unified System of Photometry allows light fixtures to be designed to reduce energy use while maintaining or improving perceptions of visibility, safety, and security. There was a need to create a new system of light measurement at night because the biological way in which the eye’s rods and cones process light is different in nighttime conditions versus daytime conditions. Using this new system of photometry, results from recent studies have indicated that replacing traditional, yellowish, high-pressure sodium (HPS) lights with "cool"
Light pollution
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Photosynthetic efficiency The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in plants and algae. Photosynthesis can be described by the simplified chemical reaction where CHO is glucose (which is subsequently transformed into other sugars, cellulose, lignin, and so forth). The value of the photosynthetic efficiency is dependent on how light energy is defined – it depends on whether we count only the light that is absorbed, and on what kind of light is used (see Photosynthetically active radiation). It takes eight (or perhaps 10 or more) photons to utilize one molecule of CO.
Photosynthetic efficiency
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adding 10% blue light (400 to 500 nm) to the red light (660 nm) in LEDs, certain plants like lettuce and wheat grow normally, producing the same dry weight as control plants grown under full spectrum light. However, other plants like radish and spinach grow poorly, and although they did better under 10% blue light than red-only light, they still produced significantly lower dry weights compared to control plants under a full spectrum light. Yorio speculates there may be additional spectra of light that some plants need for optimal growth. Greg D. Goins examined the growth and seed yield of
Grow light
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sodium lights are also used as a single source of light throughout the vegetative and reproductive stages. As well, they may be used as an amendment to full-spectrum lighting during the reproductive stage. Red spectrum light may trigger a greater flowering response in plants. If high-pressure sodium lights are used for the vegetative phase, plants grow slightly more quickly, but will have longer internodes, and may be longer overall. In recent years LED technology has been introduced into the grow light market. By designing an indoor grow light using diodes, specific wavelengths of light can be produced. NASA has tested
Grow light
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summer and less in winter) and quality of overall light reaching the Earth's surface. Some supplemental LED grow lights in vertical greenhouses produce a combination of only red and blue wavelengths. The color rendering index facilitates comparison of how closely the light matches the natural color of regular sunlight. The ability of a plant to absorb light varies with species and environment, however, the general measurement for the light quality as it affects plants is the PAR value, or Photosynthetically Active Radiation. There have been several experiments using LEDs to grow plants, and it has been shown that plants need
Grow light
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not know what kind of beloved sun. But what would be better for Mary? Who could fixedly look at the infinite light of the Divine Sun, were it not for this virginal mirror, that in itself conceives it [the light] and renders it to the world? 'Born to us, given to us from an intact virgin?' This is 'Let what is received, be shown'. For one who seeks defects where there are none, is it not to be said to him 'he seeks a spot in the sun?' The sun is without spot, and the mother of the sun is
Letters on Sunspots
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when the true pleasure of a work of fiction is its gravitational pull upon us?” In a 4,000-word review for "The New Yorker", the critic James Wood described Rahman as “a deep and subtle storyteller,” and praised the novel as “astonishingly achieved…Isn’t this kind of thinking—worldly and personal, abstract and concrete, essayistic and dramatic—exactly what the novel is for? How it justifies itself as a form?…"In the Light of What We Know" is what Salman Rushdie once called an ‘everything novel.’ It is wide-armed, hospitable, disputatious, worldly, cerebral. Ideas and provocations abound on every page.” Australian literary critic Louise Adler
In the Light of What We Know
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cells, by which movement occurs. In plants, the mechanism responsible for adaptation is signal transduction. Adaptive responses include: Many plant organs contain photo-sensitive compounds (phototropins, cryptochromes and phytochromes), each reacting very specifically to certain wavelengths of light. These light sensors tell the plant if it is day or night, how long the day is, how much light is available and from where the light comes. Shoots grow towards light and roots usually grow away from light. These responses are called phototropism and skototropism respectively. They are brought about by light sensitive pigments like phototropins and phytochromes and the plant hormone
Plant perception (physiology)
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a prime place for benthic algae to grow. This affects other organisms, such a sponges and encrusting algae that are trying to grow on the reefs. This discovery has shown that although light gaps oftentimes produce positive outcomes, they can also negatively effect some members of the biotic community. In the Amazon rainforest, light gaps are extensively studied. However, ways in which the understory is affected by light gaps there, remains mostly a mystery. Overall biomass in the light gap areas is directly impacted by the size of the light opening, the type of roots that pre-existed its formation, and
Light gap
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both red and blue light for healthy growth. From experiments it has been consistently found that the plants that are growing only under LEDs red (660 nm, long waves) spectrum growing poorly with leaf deformities, though adding a small amount of blue allows most plants to grow normally. Several reports suggest that a minimum blue light requirement of 15-30 µmol·m·s is necessary for normal development in several plant species. Many studies indicate that even with blue light added to red LEDs, plant growth is still better under white light, or light supplemented with green. Neil C Yorio demonstrated that by
Grow light
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Form Four at The Peninsula School. In an interview with Peter Thompson on the ABC Television program "Talking Heads", broadcast on 31 May 2010, Reyne answered a question on what the song was about, "Well, really? It's about fellatio, but[...] it was also about the sort of burgeoning, you know, kind of... new middle class, the new money and the new money aspirational... uh... class." The Boys Light Up (song) "The Boys Light Up" is the second single and title track released by Australian rock band Australian Crawl from their debut album "The Boys Light Up" (1980). The song was
The Boys Light Up (song)
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Progect was founded in 2013 by a group of local people attempting to save the remaining trackbed of the Corringham Light Railway. Unfortunately time has not been kind to what remains and the Corringham Light Railway,In December 2014 the Corringham Light Railway Society was formed by former members of the project it now aims to research and discover as much as possible about the old line and if possible assist in the preservation of any remaining artifacts. The Society's secondary aims are to preserve the general railway History of the Thurrock Area in conjunction with other groups. Corringham Light Railway
Corringham Light Railway
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stock were also noticed. In tests conducted by Philips Lighting on LED grow lights to find an optimal light recipe for growing various vegetables in greenhouses, they found that the following aspects of light affects both plant growth (photosynthesis) and plant development (morphology): light intensity, total light over time, light at which moment of the day, light/dark period per day, light quality (spectrum), light direction and light distribution over the plants. However it's noted that in tests between tomatoes, mini cucumbers and bell peppers, the optimal light recipe was not the same for all plants, and varied depending on both
Grow light
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application being: sodium-vapor lamps for flowering and metal halide lamps for growing), compact fluorescent lamps, and traditional fluorescent lamps. Full spectrum indoor LED grow lights are becoming more common in grow rooms due to their low energy requirements and very low heat output. Light is the essential "plant food"; everything else provided in cultivating a plant serves the purpose of helping it absorb and use the light. As the plant grows larger, it requires an increasing amount of light. There is no substitute for light: if the amount of light received by the plant is insufficient, the plant will stretch,
Growroom
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sodium light is an attempt to provide a very wide spectrum within a single lamp. This allows for a single bulb solution throughout the entire life cycle of the plant, from vegetative growth through flowering. There are potential tradeoffs for the convenience of a single bulb in terms of yield. There are however some qualitative benefits that come for the wider light spectrum. High-pressure sodium lights are a more efficient type of HID lighting than metal halides. HPS bulbs emit light in the yellow/red visible light as well as small portions of all other visible light. Since HPS grow lights
Grow light
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LED grow lights for their high efficiency in growing food in space for extraterrestrial colonization. Findings showed that plants are affected by light in the red, green and blue parts of the visible light spectrum. While fluorescent lighting used to be the most common type of indoor grow light, HID lights are now the most popular. High intensity discharge lamps have a high lumen-per-watt efficiency. There are several different types of HID lights including mercury vapor, metal halide, high pressure sodium and conversion bulbs. Metal halide and HPS lamps produce a color spectrum that is somewhat comparable to the sun
Grow light
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light) which is a serious hurdle for indoor growers, and many techniques are employed to use light as efficiently as possible. Reflectors are thus often used in the lights to maximize light efficiency. Plants or lights are moved as close together as possible so that they receive equal lighting and that all light coming from the lights falls on the plants rather than on the surrounding area. A range of bulb types can be used as grow lights, such as incandescents, fluorescent lights, high-intensity discharge lamps (HID), and light-emitting diodes (LED). Today, the most widely used lights for professional use
Grow light
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run at once, thus, non-HTS. As DSLS in principal measures particles as they either aggregate (or grow larger) or, in theory, breakdown and grow smaller, this technology and method of measurement will pull in a number of great applications in the future in the food and beverage, or environmental sector as the technology is stretched into new applications beyond proteomics. Differential static light scatter Differential static light scatter (DSLS) is a term coined to represent the change in total light scatter of a system over time or temperature in a static environment. Static light scattering or SLS and its many
Differential static light scatter
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deliver more energy in the red part of the light spectrum, they may promote blooming and fruiting. They are used as a supplement to natural daylight in greenhouse lighting and full-spectrum lighting(metal halide) or, as a standalone source of light for indoors/grow chambers. HPS grow lights are sold in the following sizes: 150W, 250W, 400W, 600W and 1000W. Of all the sizes, 600W HID lights are the most electrically efficient as far as light produced, followed by 1000W. A 600W HPS produces 7% more light (watt-for-watt) than a 1000W HPS. An HPS bulb produces 60-140 lumens/watt, depending on the wattage
Grow light
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necessarily operate at a low temperature: it is often heated to its operating temperature by other methods, such as the current passing from the cathode into the gas. Different grow lights produce different spectrums of light. Plant growth patterns can respond to the color spectrum of light, a process completely separate from photosynthesis known as photomorphogenesis. Natural daylight has a high color temperature (approximately 5000-5800 K). Visible light color varies according to the weather and the angle of the Sun, and specific quantities of light (measured in lumens) stimulate photosynthesis. Distance from the sun has little effect on seasonal changes
Grow light
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between the lights, only the bulb needs changing and a switch needs to be set to the appropriate setting. LED grow lights are composed of light-emitting diodes, usually in a casing with a heat sink and built-in fans. LED grow lights do not usually require a separate ballast and can be plugged directly into a standard electrical socket. LED grow lights vary in color depending on the intended use. It is known from the study of photomorphogenesis that green, red, far-red and blue light spectra have an effect on root formation, plant growth, and flowering, but there are not enough
Grow light
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Every Kind of Light Every Kind of Light is an album from the band The Posies, released June 28, 2005. The album was released in the U.S. by Rykodisc. This was the first full-length album release by The Posies since 1998's "Success". The Posies had broken up after "Success"' release. However, starting in 2000, the band began performing numerous reunion shows while principal songwriters Ken Stringfellow and Jon Auer pursued solo recordings and tours. This is the first Posies album to feature bassist/guitarist Matt Harris and drummer Darius Minwalla. "Every Kind of Light" was available on iTunes three weeks prior
Every Kind of Light
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and six times more light output per watt of energy consumed than a standard incandescent grow light. Due to their high efficiency and the fact that plants grown in greenhouses get all the blue light they need naturally, these lights are the preferred supplemental greenhouse lights. But, in the higher latitudes, there are periods of the year where sunlight is scarce, and additional sources of light are indicated for proper growth. HPS lights may cause distinctive infrared and optical signatures, which can attract insects or other species of pests; these may in turn threaten the plants being grown. High-pressure sodium
Grow light
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to its announced release, and the album quickly hit the iTunes Most Popular list. Two songs from the album, "Love Comes" and "I Guess You're Right", came as sample music on Windows Vista equipped computers. The following people contributed to "Every Kind of Light": "Every Kind of Light" has received mixed to positive reviews. On the review aggregate site Metacritic, the album has a score of 66 out of 100, indicating "Generally favorable reviews." Peter Gaston of Spin Magazine wrote that "Even with a rather ho-hum second stanza, "Every Kind of Light" is an instant reminder that the '90s would
Every Kind of Light
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performed as All About Eve songs since Willson-Piper's departure. "Miss World" was previously a Mice song but this has been performed as an All About Eve song since. Almafame went bankrupt shortly after the issue of "Fairy Light Nights 1". Since then two records of unclear legality have been released without the band's permission, entitled "Unplugged" and "Martha's Harbour." A third version, "All About Eve's What Kind of Fool", has also been released, available as download only through many mainstream download music sites. All three releases contain identical material to "Fairy Light Nights 1". The second album, "Fairy Light Nights
Fairy Light Nights
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Famintsyn was the first to use artificial light for plant growing and research (1868). Grow lights are used for horticulture, indoor gardening, plant propagation and food production, including indoor hydroponics and aquatic plants. Although most grow lights are used on an industrial level, they can also be used in households. According to the inverse-square law, the intensity of light radiating from a point source (in this case a bulb) that reaches a surface is inversely proportional to the square of the surface's distance from the source (if an object is twice as far away, it receives only a quarter the
Grow light
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"It's nice to have the Posies back in the studio again, but "Every Kind of Light" isn't the triumphant return fans might have hoped for." Every Kind of Light Every Kind of Light is an album from the band The Posies, released June 28, 2005. The album was released in the U.S. by Rykodisc. This was the first full-length album release by The Posies since 1998's "Success". The Posies had broken up after "Success"' release. However, starting in 2000, the band began performing numerous reunion shows while principal songwriters Ken Stringfellow and Jon Auer pursued solo recordings and tours. This
Every Kind of Light
9537475
for growing plants. Often these larger compact fluorescent bulbs are sold with specially designed reflectors that direct light to plants, much like HID lights. Common CFL grow lamp sizes include 125W, 200W, 250W and 300W. Unlike HID lights, CFLs fit in a standard mogul light socket and don't need a separate ballast. Compact fluorescent bulbs are available in warm/red (2700 K), full spectrum or daylight (5000 K) and cool/blue (6500 K) versions. Warm red spectrum is recommended for flowering, and cool blue spectrum is recommended for vegetative growth. Usable life span for compact fluorescent grow lights is about 10,000 hours.
Grow light
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regions. Other species used include "Clostridium saccharoperbutylacetonicum", "Sargassum", "Gracilaria", "Prymnesium parvum", and "Euglena gracilis" Light is what algae primarily need for growth as it is the most limiting factor. Many companies are investing for developing systems and technologies for providing artificial light. One of them is OriginOil that has developed a Helix BioReactorTM that features a rotating vertical shaft with low-energy lights arranged in a helix pattern. Water temperature also influences the metabolic and reproductive rates of algae. Although most algae grow at low rate when the water temperature gets lower, the biomass of algal communities can get large due
Algae fuel
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get a jump start on spring plantings. A ballast is needed to run these types of fluorescent lights. Standard fluorescent lighting comes in multiple form factors, including the T5, T8 and T12. The brightest version is the T5. The T8 and T12 are less powerful and are more suited to plants with lower light needs. High-output fluorescent lights produce twice as much light as standard fluorescent lights. A high-output fluorescent fixture has a very thin profile, making it useful in vertically limited areas. Fluorescents have an average usable life span of up to 20,000 hours. A fluorescent grow light produces
Grow light
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advanced grow box units even include air conditioning to keep running temperatures down, as well as to boost the plant's growth rate. These advanced elements allow the gardener to maintain optimal temperature, light patterns, nutrition levels, and other conditions for the chosen plants. Key growlight options include fluorescent bulbs, which offer relatively limited light output; high-intensity discharge lamps such as sodium-vapor lamps and metal-halide lamps; and light-emitting diodes bulbs, which are becoming more energy-efficient. In different sizes and degrees of complexity, grow boxes are also referred to as grow cabinets and lightproof cabinets. A full-room version of a grow box
Grow box
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or by the pond in warmer locales (or in shallow dishes or as a house plant if kept sufficiently damp) and will grow all year round, but is frost tender (though it will normally grow back from the roots if damaged) and appreciates a light shade. In the aquarium it needs good lighting to grow strongly but will survive in even fairly low-light levels. Prefers a clean, nutriment rich environment. When gold nanoparticles were introduced into "Bacopa caroliniana" plants they caused the chlorophyll to produce reddish light. While lit, the glowing plants' vegetation consumed more carbon from the atmosphere than
Bacopa caroliniana
5246426
no natural light in these parks, necessitating the use of one of the most distinguishing aspects of an indoor park: artificial turf. Since there was not enough light to grow grass, artificial turf was installed, and this affected the game. Artificial turf was harder, and thus a ball hit on the ground moved faster and bounced high. This, coupled with the usually dull white or gray roofs that could camouflage a fly ball, caused what Twins fans called a "dome-field advantage". A park of note is Olympic Stadium in Montreal. The park was designed with a large tower that loomed
Baseball park
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to be settled conclusively by scholars and officials. According to popular legend, in 1835, Don Pedro Medina, a poor, old farmer, saw from the outside of his home in the countryside an intense light, coming from the Cerro Gordo. The first few days, he thought it must have been some kind of coal or wood furnace. But he kept seeing the light for a few more days, so he decided he would climb the mountain up to the place to see what was going on. When he finally got to the place where he had seen the light, he found
Tepatitlán
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become the prey of black despair for want of either moral or material light or sweetness (or coin of the realm). I remember I did not so much love him on the principle of "If he be not kind to me what care I how kind he be!" But rather that he seemed to radiate kindness and graceful good fellowship all about him. He appeared to draw to him by the rare gift of personal magnetism all of the best of human sympathy. The love of those who loved him for the love, that was the light of his life.
James Lorimer Graham Jr.
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Light gap In ecology, a light gap is a break in forest canopy or similar barrier that allows young plants to grow where they would be otherwise inhibited by the lack of light reaching the seedbed. Light gaps form predominantly when a tree falls, and thus produces an opening in the forest canopy. Light gaps are important for maintaining diversity in species-rich ecosystems. There are many ways in which light gaps can form. A major occurrence is through previously mentioned treefall gaps. The death of a full-grown tree initiates a treefall gap, where light is exposed to the soil and
Light gap
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human consumption in some sort of light that will keep my head from exploding. Our wonderful vet here said "at least they won't be going to Mexico as much, where slaughter methods are unspeakable ... I was moved to write a song which we'll soon share with you on YouTube; for now, here are the lyrics: “"ODE TO SLAUGHTERHOUSE SUE AND THE BUTCHERIN’ CREW"<br><br>What kind of cowgirl eats horses?<br>What kind of Rodeo Queen?...<br>What kind of cowboy eats horses?<br>When he’s spent his whole life raisin' beef... Lacy J. Dalton Lacy J. Dalton (born Jill Lynne Byrem; October 13, 1946, Bloomsburg, Pennsylvania)
Lacy J. Dalton
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as "Monstera deliciosa" and a number of other members of the family Araceae, such as members of the genus "Philodendron", initially grow "away" from light; this is a dramatic example of sciophilous growth, which helps them locate a tree trunk, which they then climb to regions of brighter light. The upper shoots and leaves of such a Philodendron grow as typical light-loving, "photophilic" plants once they break out into full sunshine. In forests where rainfall is plentiful and water is not the limiting factor to growth, shade tolerance is one of the most important factors characterizing tree species. However, different
Shade tolerance
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forecourt located between Wilshire Boulevard and LACMA's entry pavilion. "Los Angeles Times" critic Christopher Hawthorne gave the arrangement a mixed review, describing "Urban Light" as "a kind of pop temple, deftly straddling the lines between art and architecture and between seriousness and irony." "It's also a joy to walk through, but there's no getting around the fact that it turns what might have been an actual public square along Wilshire—a space defined from day to day by the people using it—into an outdoor room for one sizable and very insistent piece of art." Hawthorne also argued that "Urban Light" was
Urban Light
20177896
such is the initial paradox of Christine Davis' artistic "scenario," a practice which seeks to capture what, after Pasolini, I would call the "form of the gaze"… [i]t is as if shedding light on violence required an archeology of the image in order that its cruelty, its social effect, be revealed, thus allowing the spectator to discover its implications. Drawn from different regimes — cinema, photography, books — the images function as a kind of palimpsest or abstract… "capturing devices" through whose cold, technological eyes the blindness of the modern is alleviated." An installation of 12 light tables whose surfaces
Christine Davis (artist)
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reproduces by spreading its seeds through wind dispersal and through vegetative production. Since it is multiembryonic, it allows the seeds to cover more ground and allows the pale swallowwort to have a high reproductive rate. Intermediate light is the best light source for the pale swallowwort to reproduce and grow. Though that light is not necessarily required, it does produce the best outcome. Typically this invasive species is found in dense vegetation, which allows it to rapidly grow with its multiembryonic seeds. Since this invasive species is a vine, it grows best when it attaches to other plants and uses
Vincetoxicum rossicum
16141717
the name of "moral crimes", by the Afghan judicial system. Amnesty International wanted the release of documentary to bring to light one of Afghanistan's most shameful judicial practices. Gulnaz's case not only attracted international attention, but also posed primitive questions about the veracity of governance in Afghanistan. Speaking to the BBC correspondent Caroline Wyatt, Gulnaz said, "I don't want to have anything to do with Afghanistan government again, because they put innocent people in prison. What kind of government is this? What kind of Afghanistan is this? My attacker committed a crime, and they arrested me!" Speaking to BBC correspondent
Gulnaz (Afghan)
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find out what happens, and to linger in admiration of de Kretser's ravishing style." In "The Guardian", Carmen Callil stated her opinion upfront: "This is my favourite kind of novel. It is full of incident and character, tells a gripping story, has many touches of brilliance and can make you laugh and wonder. But it is also mightily flawed...These lapses aside, the language is full of light, colour and precise observation and, better still, the author can handle ethical and political concerns with a light touch." The Lost Dog The Lost Dog is a 2007 novel by Australian writer Michelle
The Lost Dog
17961957
in light of theory. (The choice between geocentric and heliocentric theories at the time of the Copernican revolution is a vivid example.) ... How things seem is the starting point for all knowledge, and its development through further correction, extension, and elaboration is inevitably the result of more seemings—considered judgments about the plausibility and consequences of different theoretical hypotheses. The only way to pursue the truth is to consider what seems true, after careful reflection of a kind appropriate to the subject matter, in light of all the relevant data, principles, and circumstances." The question of knowability is approached from
Logology (science of science)
13138580
semi-conducting material invented at the University of Chicago. Solarmer’s technology is based on using a semiconducting plastic as the active material in the solar cell, which is what converts light into electricity. In contrast to other photovoltaic technologies, this technology is capable of producing electricity using any kind of lighting, although the lower the light, the less electricity produced. However a major setback of this technology is the relatively low efficiency and, more importantly, lack of stability. Solarmer does have one of the highest efficiencies in the industry with 8.13% (July 2010), but this is still lower than other solar
Solarmer Energy, Inc.
20237152
the business model for J-Novel Club in 2015 and "took inspiration from what the fans had started to do on their own, as well as the more traditional models for book publishing". J-Novel Club's overall purpose was "to create and grow a worldwide market for Japanese light novels translated into English." The original name for the project was 'K-Novel' because kei is Japanese for light (as in the K from K-On), but before launch the K was changed to J (for Japanese) to avoid confusion with Korean novels and 'club' was added when it was noticed that the .club top-level
J-Novel Club
7349884
not). The creation of a treefall gap causes a break in the canopy to form, allowing light to penetrate through to the understory. This light can now reach shrubs and treelet species, which under normal circumstances never grow tall enough to reach the canopy. Under a normal canopy (i.e. one where there is no treefall gap), there is very little light that filters through, placing a light limitation on the understory plant community. This light limitation often restricts a plant’s reproduction and growing ability. When a treefall gap forms, there is a distinguishable difference in the amount of light that
Treefall gap
653425
evolution of the particles, we need to set up a wave equation for both particles; the orientation of the apparatus affects the wavefunction. The particles in the experiment follow the guidance of the wavefunction. It is the wavefunction that carries the faster-than-light effect of changing the orientation of the apparatus. An analysis of exactly what kind of nonlocality is present and how it is compatible with relativity can be found in Maudlin. Note that in Bell's work, and in more detail in Maudlin's work, it is shown that the nonlocality does not allow signaling at speeds faster than light. Bohm's
De Broglie–Bohm theory
12304660
continued to grow internationally and help to highlight ecological change. This LED low energy movement dates back to the 2009 by the Vivid Smart Light Festival in Sydney. In Singapore, the i Light Marina Bay festival—Asia's only sustainable light festival—was first hosted in 2010. There are many light art festivals, especially in Europe, including the Signal Festival in Prague and the Ghent Light Festival. Light festivals and LEDS have redefined light art as an art genre. The International Light Art Award, presented by the Centre for International Light Art Unna and the RWE Foundation, is given to up-and-coming artists who
Light art
2657975
dimmer. Due to the construction of the Game Boy Advance case, the Afterburner light is slightly too narrow to illuminate the screen evenly. This creates what is called the "trapezoid effect": a trapezoid-shaped pattern of light across the screen. The Game Boy Advance SP does not suffer from the "trapezoid effect", though its integrated battery makes the power drain more significant. The following comment from Game Boy Advance SP creator Kenichi Sugino is taken from an interview with GamePro magazine: "In a way, though, it also reminded us of exactly how many users really wanted to see some kind of
Afterburner (modification kit)
11613588
Rhodobacter sphaeroides Rhodobacter sphaeroides is a kind of purple bacterium; a group of bacteria that can obtain energy through photosynthesis. Its best growth conditions are anaerobic phototrophy (photoheterotrophic and photoautotrophic) and aerobic chemoheterotrophy in the absence of light. "R. sphaeroides" is also able to fix nitrogen. It is remarkably metabolically diverse, as it is able to grow heterotrophically via fermentation and aerobic and anaerobic respiration. "Rhodobacter sphaeroides" has been isolated from deep lakes and stagnate waters. "Rhodobacter sphaeroides" is one of the most pivotal organisms in the study of bacterial photosynthesis. It requires no unusual conditions for growth and is
Rhodobacter sphaeroides
11613592
genes, mediated by protein regulators. Rhodobacter sphaeroides Rhodobacter sphaeroides is a kind of purple bacterium; a group of bacteria that can obtain energy through photosynthesis. Its best growth conditions are anaerobic phototrophy (photoheterotrophic and photoautotrophic) and aerobic chemoheterotrophy in the absence of light. "R. sphaeroides" is also able to fix nitrogen. It is remarkably metabolically diverse, as it is able to grow heterotrophically via fermentation and aerobic and anaerobic respiration. "Rhodobacter sphaeroides" has been isolated from deep lakes and stagnate waters. "Rhodobacter sphaeroides" is one of the most pivotal organisms in the study of bacterial photosynthesis. It requires no unusual
Rhodobacter sphaeroides
596645
world-famous. When asked by his assistant what his reaction would have been if general relativity had not been confirmed by Eddington and Dyson in 1919, Einstein said "Then I would feel sorry for the dear Lord. The theory is correct anyway." In 1912, Einstein had speculated that an observer could see multiple images of a single light source, if the light were deflected around a mass. This effect would make the mass act as a kind of gravitational lens. However, as he only considered the effect of deflection around a single star, he seemed to conclude that the phenomenon was
Gravitational lens
9537470
the crop and the region, so currently they must optimize LED lighting in greenhouses based on trial and error. They've shown that LED light affects disease resistance, taste and nutritional levels, but as of 2014 they haven't found a practical way to use that information. The diodes used in initial LED grow light designs were usually 1/3 watt to 1 watt in power. However, higher wattage diodes such as 3 watt and 5 watt diodes are now commonly used in LED grow lights. for highly compacted areas, COB chips between 10 watts and 100 watts can be used. Because of
Grow light
13362441
Horticultural fleece Horticultural fleece is a thin, unwoven, polypropylene fabric which is used as a floating mulch to protect both late and early crops and delicate plants from cold weather and frost, as well as insect pests during the normal growing season. It admits light, air and rain but creates a microclimate around the developing plants, allowing them to grow faster than the unprotected crops. Available in rolls of various widths, the fleece is laid across sown seedbeds or on the top of juvenile plants. If fleece covers rows it is known as a kind of row cover. The edges
Horticultural fleece
3209378
dominates in the oligotrophic (nutrient poor) regions of the oceans. "Prochlorococcus" is mostly found in a temperature range of 10-33 °C and some strains can grow at depths with low light (<1% surface light). These strains are known as LL (Low Light) ecotypes, with strains that occupy shallower depths in the water column known as HL (High Light) ecotypes. LL type Prochlorococcus have a higher ratio of chlorophyll b to chlorophyll a, which aids in their ability to absorb blue light. Blue light is able to penetrate ocean waters deeper than the rest of the visible spectrum, and can reach
Prochlorococcus
1419755
and "Psychologie de l'Éducation", in 1896 and 1902 respectively. These works rankled the largely socialist academic establishment of France. Le Bon constructed a home laboratory in the early 1890s, and in 1896 reported observing "black light", a new kind of radiation that he believed was distinct from, but possibly related to, X-rays and cathode rays. Not the same type of radiation as what is now known as black light, its existence was never confirmed and, similar to N rays, it is now generally understood to be non-existent, but the discovery claim attracted much attention among French scientists at the time,
Gustave Le Bon
19560971
plasticity of the apoplastic membrane. This plasticity enables more cell area to be created during cell division, which expands the leaf as more standard-sized cells are added. The increase in overall organelles and cell area cause more stomates to form and more light to be utilized. Different types of plants tend to grow at different rates. Those that grow slowly tend to prioritize having much smaller leaf areas in order to conserve energy, and will only expend them when an excess of light is close by. This is due to light being scarce, their slow growth preventing them from reaching
Leaf expansion
5068394
a popular tourist destination in Penang. The top of the hill is accessible via the Penang Hill Railway from its base station at Hill Railway Station Road. To date, this funicular railway system is the only one of its kind in Malaysia, transporting over a million visitors to the peak of Penang Hill . Captain Francis Light, founder of the colony in Penang, first plotted a horse track from the Penang Botanic Gardens waterfall up to the top of the hill in 1788. He cleared an area in order to grow strawberry, and it therefore became known as Strawberry Hill.
Penang Hill
5741427
since marine or coral-reef aquariums often require intensely blue light. Gardening under lights keeps plants blooming almost year-round, for a wintertime harvest. Grow lights are specifically intended to support plant growth, although with varying degrees of success and energy efficiency. Some plants grow better when given more of a certain color light, due to the mechanism of photosynthesis. Specifically more blue wavelengths enhance vegetative growth and development, while the addition of increasing amounts of red light enhances budding, flowering and fruiting. In recent years, full-spectrum lighting has been used in the treatment of seasonal affective disorder (SAD) through the use
Full-spectrum light
12244312
made, as well as emotionally and psychologically. Little bits and pieces hover in white grounds blown flat by blinding light, later lurking in deep inky grayed out pools. Light, through its abundance and its absence, can record and reveal as well as obscure and exaggerate. Formally, through degrees of control and chaos, the domestic scenes Letinsky photographs are redolent with the allures of domesticity (safety, comfort, familiarity) as well as its dangers (boredom, satiation, lack of desire). These liminal images are not intended as accurate visual description, rather aspiring to describe another kind of sensing. What one sees is not
Laura Letinsky
19756036
and Nikolai Muzil (Khudobayev). The general response to the premiere was negative. "That's what comes out of having no final rehearsal. The second performance will be better and the whole thing will just grow," wrote Ostrovsky to his friend, the actor Fyodor Burdin. He proved to be right. "The 4th performance was sold out, and the response was excellent," wrote Ostrovsky in a 20 November letter to Solovyov. On 14 November "Light Without Heat" was performed at the Alexandrinsky Theatre in Saint Petersburg, as a benefit for Burdin who played Khudobayev. Among other actors involved were Antonina Abarinova (Renyova), Maria
Light Without Heat
5099460
not in the way it is used now, which he says is to "mimic film". He describes his specific approach to Remodernist filmmaking as well: These things, these "shadows" that we are hiding within ourselves, need to be brought forth into the light of day – in our films, in our work, in our poetry. It's necessary for us to share these parts of ourselves so we and the people we share with can grow into complete, honest human beings. Now, this kind of brutal honesty about ourselves shown through imagery that isn't shy, has been explored to a degree
Jesse Richards
1585516
the zygomycetes "Phycomyces blakesleeanus", "Mucor circinelloides" and "Pilobolus crystallinus". For example, in "Pilobolus crystallinus" light is responsible for the dispersal mechanism and the sporangiophores of "Phycomyces blakesleeanus" grow towards light. When light, particularly blue light, is involved in the regulation of fungal development, it directs the growth of fungal structures and activates metabolic pathways. For instance, the zygomycota use light as signal to promote vegetative reproduction and growth of aerial hyphae to facilitate spore dispersal. Fungal phototropism has been investigated in detail using the fruiting body, sporangiophore, of "Phycomyces" as a model. "Phycomyces" has a complex photoreceptor system. It is
Zygomycota
13504156
is just like that of coconuts. The flowers are colored in red with yellow or brown speckles. This plant is easy to grow and flower but does like a little cooler night temperatures in winter. Light: Medium light as for between Cattleya and Phalaenopsis. From 1500 to 3500 foot candles are ideal. This plant will also grow well under fluorescent and high pressure sodium fixtures. Temperature: The plants grow well in intermediate temperatures, with winter nights from 55 to 62 degrees Fahrenheit and days of 58 to 75. Summer temperatures can be several degrees warmer. Humidity: This plant likes a
Maxillaria tenuifolia
9537448
light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated. Outdoor conditions are mimicked with varying colour, temperatures and spectral outputs from the grow light, as well as varying the lumen output (intensity) of the lamps. Depending on the type of plant being cultivated, the stage of cultivation (e.g. the germination/vegetative phase or the flowering/fruiting phase), and the photoperiod required by the plants, specific ranges of spectrum, luminous efficacy and colour temperature are desirable for use with specific plants and time periods. Russian botanist Andrei
Grow light
8221763
any kind, particularly including monopack color motion picture films in 65/70mm, 35mm, 16mm and 8mm. The "Monopack Agreement" had no effect on color still films. Monopack color films are based on the subtractive color system, which filters colors from white light by using superimposed cyan, magenta and yellow dye images. Those images are created from records of the amounts of red, green and blue light present at each point of the image formed by the camera lens. A subtractive primary color (cyan, magenta, yellow) is what remains when one of the additive primary colors (red, green, blue) has been removed
Color motion picture film
9537474
33-100 lumens/watt, depending on the form factor and wattage. Compact Fluorescent lights (CFLs) are smaller versions of fluorescent lights that were originally designed as pre-heat lamps, but are now available in rapid-start form. CFLs have largely replaced incandescent light bulbs in households because they last longer and are much more electrically efficient. In some cases, CFLs are also used as grow lights. Like standard fluorescent lights, they are useful for propagation and situations where relatively low light levels are needed. While standard CFLs in small sizes can be used to grow plants, there are also now CFL lamps made specifically
Grow light
1768845
is removed, the electrons move to the right, repelled by each other and attracted to the positive ions left bare on the right side. They oscillate back and forth at the plasma frequency until the energy is lost in some kind of resistance or damping. Plasmons are a quantization of this kind of oscillation. Plasmons play a large role in the optical properties of metals and semiconductors. Light of frequencies below the plasma frequency is reflected by a material because the electrons in the material screen the electric field of the light. Light of frequencies above the plasma frequency is
Plasmon
15272920
programme. The herd of goats was shot by the lighthouse staff in 1969. Casuarina trees which were planted by Don Adams in 1969 were allowed to grow over the years, and by 1995 the light was obscured. A new lighthouse was constructed by the Australian Maritime Safety Authority (AMSA), and the old lighthouse was shut down. The current active light is a square steel skeletal tower. It is topped by a white fiberglass hut with a gallery. The fully automated light consists of six beams and is solar powered, The light characteristic shown is a white flash every 7.5 seconds
Lady Elliot Island Light
4825953
in natural environments. Photomorphogenesis In developmental biology, photomorphogenesis is light-mediated development, where plant growth patterns respond to the light spectrum. This is a completely separate process from photosynthesis where light is used as a source of energy. Phytochromes, cryptochromes, and phototropins are photochromic sensory receptors that restrict the photomorphogenic effect of light to the UV-A, UV-B, blue, and red portions of the electromagnetic spectrum. The photomorphogenesis of plants is often studied by using tightly frequency-controlled light sources to grow the plants. There are at least three stages of plant development where photomorphogenesis occurs: seed germination, seedling development, and the switch
Photomorphogenesis
4825939
Photomorphogenesis In developmental biology, photomorphogenesis is light-mediated development, where plant growth patterns respond to the light spectrum. This is a completely separate process from photosynthesis where light is used as a source of energy. Phytochromes, cryptochromes, and phototropins are photochromic sensory receptors that restrict the photomorphogenic effect of light to the UV-A, UV-B, blue, and red portions of the electromagnetic spectrum. The photomorphogenesis of plants is often studied by using tightly frequency-controlled light sources to grow the plants. There are at least three stages of plant development where photomorphogenesis occurs: seed germination, seedling development, and the switch from the vegetative
Photomorphogenesis
15343478
the kind of free spirit—a Zarathustra-figure—who could bring this about, although he will come one day: he will emerge only in a time of emboldening conflict, not in the "decaying, self-doubting present" (§24). Nietzsche's purpose in the "Third Treatise" is "to bring to light, not what [the ascetic] ideal has "done", but simply what it "means"; what it indicates; what lies hidden behind it, beneath it, in it; of what it is the provisional, indistinct expression, overlaid with question marks and misunderstandings" (§23). As Nietzsche tells us in the Preface, the Third Treatise is a commentary on the aphorism prefixed
On the Genealogy of Morality
5266084
Months later, Doctor Mid-Nite resurfaced and created a replica of the Colosseum by passing it off as a remnant of an ancient civilization and used it as a front to sell counterfeit relics. Doctor Mid-Nite figured out the plot where he defeated Doctor Light and handed him over to the authorities. Doctor Light used his light-based gadgets to make plants grow to enormous size where he used them as living weapons. Anyone that came in contact with these plants developed murderous intentions and uncontrollable rage. Doctor Mid-Nite put a stop to Doctor Light's plot. Doctor Light (comics) Doctor Light is
Doctor Light (comics)
9787634
Schistostega Schistostega pennata, also called goblin gold, Dragon's gold, luminous moss or luminescent moss, is a moss known for its glowing appearance in dark places. It is the only member of the family Schistostegaceae. The moss has adapted to grow in low light conditions by utilizing spherical cells in the protonema that act as lenses, collecting and concentrating even the faintest light. The chloroplasts absorb the useful wavelengths of the light and reflect back the remainder towards the light source, giving the moss a greenish-gold glow. The little lenses have the capability of turning towards the light source to maximise
Schistostega
11037034
happy to introduce "Hygrophila polysperma" into their tanks as it can rapidly grow out of control, taking light and nutrients away from more valuable plants. It does occasionally grow into an attractive plant and the leaves turn a shade of pink or orange as they grow closer to the light source. Many people find that this plant produces too many new shoots and eventually becomes a nuisance. It is a good plant for quickly filling a planted aquarium, using its new shoots to propagate new plants in a matter of days. In India, its seeds are said to be used
Hygrophila polysperma
79155
can't be made from scratch. In organisms like plants, whose cells contain multiple chloroplasts, coordination is looser and less important. It is likely that chloroplast and cell division are somewhat synchronized, though the mechanisms for it are mostly unknown. Light has been shown to be a requirement for chloroplast division. Chloroplasts can grow and progress through some of the constriction stages under poor quality green light, but are slow to complete division—they require exposure to bright white light to complete division. Spinach leaves grown under green light have been observed to contain many large dumbbell-shaped chloroplasts. Exposure to white light
Chloroplast
12323871
for plants to grow, there is very little dissolved oxygen. In its absence, organic material is broken down by anaerobic bacteria producing hydrogen sulphide. Global warming is likely to reduce levels of oxygen in surface waters, since the solubility of oxygen in water falls at higher temperatures. The amount of light that penetrates the sea depends on the angle of the sun, the weather conditions and the turbidity of the water. Much light gets reflected at the surface, and red light gets absorbed in the top few metres. Yellow and green light reach greater depths, and blue and violet light
Sea
9649393
this game, the user attempts to harvest various kinds of exotic swamp plants so that enough of them grow large enough to meet a given quota. To do this, the user must experiment to see how the different plants react to different amounts of light, water and space. On the first level, there is only one kind of plant needed, but, on the higher levels, the user must use two different kinds of plants on the same plot. The game is completed after three successful harvests. Inside the island's clock tower, the user helps a hunchback named Semimoto (a play
JumpStart Adventures 4th Grade: Haunted Island
18023216
as a background plant. With sufficient light, the red/purple leaves will thrive and provide a very aesthetic setting in the aquarium. As stated before, carbon dioxide would need to be added frequently to the aquarium in order for the plant to grow well. Ludwigia glandulosa Ludwigia glandulosa, the cylindricfruit primrose-willow, is an amphibious plant from southeast United States. It can grow partially or fully submerged. It grows very slowly and needs carbon dioxide in order to grow well. The leaves of this plant will turn greener if not enough light is provided. "Ludwigia glandulosa" can be found in wetland areas
Ludwigia glandulosa
2491067
is breathtaking. This is the kind of world and people I want to be around. These are the kind of people I want to be working with."In 2018, Light discussed the similarities between the beginnings of the LGBT rights movement and the Me Too movement. In addition to LGBT and AIDS activism, she has also spoken publicly to encourage vaccination against the flu as a way to protect vulnerable populations. Light has been married to television actor Robert Desiderio since 1985. The couple live apart: she in New York City, and he in Southern California. She is Jewish and considers
Judith Light
5392158
lights in it. She pulls some light bulbs off her dress and plants them in the ground. The light bulbs grow and act as incubators or cocoons for toy airplanes inside them. When the airplanes grow big enough, they break out of the bulbs and fly away. At the same time, numerous skyscrapers grow out of the ground and eventually are covered in cockroaches. Isobel is also shown walking through the countryside, up a mountain, and beside a river. The video received general acclaim from critics. The video, however, received little support from MTV, as airings for both "Isobel" and
Isobel (song)
19576480
Winter light festival A winter light festival is one of several annual events organized in different part of the world and among different cultures, to celebrate the end of the winter and the beginning of the light seasons with art workshops, light designs, live music and street food. Originally, this kind of celebration had a religious and spiritual meaning, to celebrate the end of the dark period of the year and the beginning of the days of light. Nowadays, these events have lost the spiritual meaning to leave much more space to the consumeristic aspect. Festivals of light are strongly
Winter light festival
4421657
species of an animal as providing a measure of good and bad in the operations of its parts and faculties. Just as one has to know what kind of animal one is dealing with in order, for instance, to decide whether its eyesight is good or bad, the question of whether a subject's practical reason is well developed, depends on the kind of animal it is. (This idea is developed in the light of a conception of animal kinds or species as implicitly containing "evaluative" content, which may be criticized on contemporary biological grounds; although it is arguable, even on
Philippa Foot
19817029
their rule over humanity, and offer him a choice of destiny. One presents himself as Belial, Prince of Darkness and Kind of Evil, he is empowered over all Darkness. The other figure, dubbed Michael, Prince of Light and King of Righteousness, rules over the Light. Amram tells his audience that he wrote down his vision as soon as he awoke. Amram also differentiates between light and darkness. He tells his audience the Sons of Light will be made light and Sons of Darkness will be made dark. Sons of Light are destined for light and joy while Sons of Darkness
Visions of Amram
11273981
This is the plant sleeping. Plants use phytochrome to detect red and far red light. Depending on which kind of light is absorbed, the protein can switch between a Pr state that absorbs red light and a Pfr state that absorbs far red light. Red light converts Pr to Pfr and far red light converts Pfr to Pr. Many plants use phytochrome to establish circadian cycles which influence the opening and closing of leaves associated with nyctastic movements. Anatomically, the movements are mediated by pulvini. Pulvinus cells are located at the base or apex of the petiole and the flux
Nyctinasty
7823587
Stiles–Crawford effect The Stiles–Crawford effect (subdivided into the Stiles–Crawford effect of the first and second kind) is a property of the human eye that refers to the directional sensitivity of the cone photoreceptors. The Stiles–Crawford effect of the first kind is the phenomenon where light entering the eye near the edge of the pupil produces a lower photoreceptor response compared to light of equal intensity entering near the center of the pupil. The photoreceptor response is significantly lower than expected by the reduction in the photoreceptor acceptance angle of light entering near the edge of the pupil. Measurements indicate that
Stiles–Crawford effect