 given moment, all the photos in a laser beam strike an object at the same time and in the same place, the light and its heat are many times more intense.

Depending on the power and duration of the beam, a laser can supply the enormous burst of heat necessary to weld two pieces of steel together, or it can provide just enough heat and direction to burn off the dirt -- and only the dirt -- on your favorite outdoor statue.

A laser beam "happens" when energy (in the form of regular, incoherent light or electricity) is shot into a substance so that the molecules in that substance are excited in a specific way to produce a coherent beam of light. Dr. Maiman's laser consisted of a flash tube wrapped around a synthetic ruby rod; later, scientists discovered that an electrical charge shot through various gases (carbon dioxide, helium, argon) produced the same result.

The laser has hundreds of uses, notes Jack Hull of the Laser Institute of America in Waco, Taxes:

"They are used for surveying over long distances, and even on construction sites where they need to grade the site to an exact level. A bulldozer operator just lines the top of his blade up with a laser that has been set at a specific height." Such a low-power, continuous-beam laser is dangerous only if you look directly into the beam.

A division of the Hughes company manufactures a laser cloth-cutting machine that snips out the pieces for hundreds of men's suits in minutes.

The capacity of a laser to concentrate lots of heat on a pinpoint makes certain types of welding easier, and has made it possible to join types of metal previously thought incompatible.

"If you don't want the heat to dissipate through the rest of the metal, lasers are by far the best answer," Mr. Hull says. "They are also used for hole drilling, especially where you have to drill lots of tiny holes. For example, the blades in the turbine of a jet engine have hundreds of tiny holes drilled in them. That's done with a laser."

Lasers are also in the midst of revolutionizing the communications industry. Rather than using traditional radio waves and copper wires to transmit information, such as telephone conversations, communications companies are using lasers to transmit millions of bits of information per second. The information-laden light travels over hair-thin, bendable fibers of glass, says a scientist at Bell Telephone Laboratories
given moment, all the photos in a laser beam hit an aim at the same time and in the like place, the lighter and its heat are many times more acute. 

 count on the power and duration of the radio beam, a laser can supply the enormous burst of heating system necessary to weld two pieces of steel in concert, or it can provide just adequate heat and management to burn off the dirt -- and only the dirt -- on your favored outdoor statue. 

 A laser beam " happens " when department of energy (in the form of unconstipated, incoherent light or electricity) is film into a substance so that the molecules in that substance are excite in a specific way to produce a coherent beam of light. Dr. Maiman's laser consisted of a flash tube wrapped around a synthetic ruby rod; later, scientists discovered that an electrical charge shot through assorted gases (carbon dioxide, helium, argon) grow the same result. 

 The laser has hundreds of use, notes Jack Hull of the Laser Institute of America in Waco, Taxes: 

 " They are used for surveying over retentive distances, and even on construction sites where they need to grade the site to an accurate level. A bulldozer operator just lines the top of his blade up with a laser that has been set at a specific acme. " Such a low - power, continuous - beam laser is dangerous only if you look immediately into the beam. 

 A division of the Hughes company manufactures a laser cloth - cutting machine that snips out the pieces for hundred of men's suits in minutes. 

 The capacity of a laser to concentrate tons of heat on a speck makes certain types of welding easy, and has made it possible to join types of metal previously think incompatible. 

 " If you don't want the heat to dissipate through the rest of the metal, lasers are by far the best solution, " Mr. Hull says. " They are also practice for hole drilling, especially where you have to drill lots of tiny trap. For example, the blades in the turbine of a jet engine have hundreds of bantam holes drilled in them. That's do with a laser. " 

 Lasers are also in the midst of revolutionizing the communications industry. Rather than use traditional radio waves and copper telegram to transmit information, such as telephone conversations, communications companies are use lasers to transmit millions of bits of information per second. The data - laden light travels over hair - thin, bendable fibers of glass, says a scientist at Bell Telephone Laboratories
 gigen moment, all the photor in a laser becn strine an kbject ag the same time and in the seme place, the light and its heag are manj times mire mntense.

Depending on the ijwer wnd bucation of the bgam, a laser wan supply the evoxmous burst of heat necessary to welq two poefes of steel tjgetnqr, od it can provide just enough heat znd dirtction to burn off the dirt -- and only the digt -- ln your favorite oktdoor statos.

A jqser beam "haopens" when energy (in tge form of regular, incoherent lkght pr electrixiry) lv shot into a sufstance so tmst the molecukes in that sunstanre aee excited in a specihic way to produce a coherent bzam of light. Dr. Maimab's laset convistde ow a fkaah tubf wcapped arouhd a syntheric ruby rod; later, xcyvmtists discobered ehwt an electrical charge shot through vagioua gases (carbon dioxide, yelium, argon) produced the same result.

The laser has hundreds of uses, notes Jack Vull kw tkc Uqsfr Institute of America in Waco, Taxes:

"They are hstd nor surveying ovcr long distances, snf rden on constroction sitss where they need to graqe thw site to an rxact level. A bulldozer opeeator just lpnes the top of his blcde up with c laset that has been set at a specnfic hsight." Such w low-powed, continuous-beam uasvr iv dangerous only if you lojk directoy iuto the ceam.

S divifion of thf Hugmas company manufachures a laser clohh-cutting machine that snips ouv the pieces gos hlndreds oy men's suits in minttes.

The capacijy of a lcser tu concentrzte lotv of heat og a pinpoint kwkes certain types os weodint easief, and has made ot possible to join types of metal prcviourmy thought inconpauivle.

"If you don't wavt ehv hxat tj dissipate tvroueh gne rert of the mctau, laxers are by far the test answer," Mr. Hull saus. "They arg also usqd for hole dtilling, especially wherx you iave tp dtill lots of tiny holes. For exajple, the hlaqes in the ttrbike os a jet enyine have hundreds of tiny holes drilled in them. That's donw with a laser."

Laserx are also ii the iidst of sevolutionizing the xommunications incustry. Rather than usjng trdditilnal radio waves and copper wires to transmit information, such as telephobe contewsations, cojmunocatimnf compagies ere using lasers no transmit millions of bits of mnformatiot 'er second. The information-ladrn light travelr over hair-thin, bendable fibers pf glass, says a scientist at Bekl Telephone Laboratoriex
given moment, all the photos in a strike object at same time and light its heat are times more intense. on the power and duration of beam, a laser can supply the enormous burst of heat necessary to weld pieces of steel together, or it can provide just enough heat and direction burn the -- only the dirt -- on your favorite outdoor statue. A laser beam "happens" when energy (in form of regular, incoherent light or electricity) is into a substance so the molecules in that substance excited a specific to a beam of light. Maiman's laser consisted of a flash tube wrapped around a synthetic ruby rod; later, scientists discovered that electrical charge various gases dioxide, argon) the same result. has hundreds of uses, notes Jack Laser Institute of America in Waco, Taxes: "They used for over long distances, and even on sites where they need to grade the site an exact level. A bulldozer operator just lines the top of his blade up with that has been set a specific height." a continuous-beam is only if look directly into the beam. A division of the Hughes company a laser cloth-cutting machine that snips out the pieces for men's in minutes. The of a laser to lots heat on a pinpoint types welding made possible join types of metal thought incompatible. "If you don't the heat to dissipate metal, lasers are by far the best answer," Hull says. "They are also used for drilling, especially where you have to drill lots of tiny holes. For the blades turbine of a jet engine have hundreds of holes drilled in them. done with a laser." Lasers are also in the of the communications Rather than using radio waves and wires to transmit as telephone communications are transmit millions of bits of information second. information-laden light travels over hair-thin, fibers says a scientist at Bell Telephone Laboratories
 given moment, all the photos in A laser beam StrikE an ObjEcT at tHe saMe time and in the SAme pLace, the light and its heat Are maNy TImes MOrE inteNse.

DepeNDiNG On tHe PoWer AnD DuRatioN of The beam, A laser can sUppLy The enormous bURsT of heat necEssAry to weld two PieCes of sTeEl tOGetheR, or It can ProvidE Just enOugh heat aNd DIrectiON to burn OFF tHe diRt -- and only the dirt -- oN YoUR favorite outdoOr statUe.

a LaSER beAm "hAppens" when EnErgy (iN The form OF rEGULar, INcoherent lighT or electricITy) iS shot iNtO a sUBstancE so thAt THe mOlecules in tHat sUbstance aRe exciTEd in a spECific waY to proDucE a cOherENt BeAm oF lIGht. dR. MAimAN's lAser consIsTeD of a fLash TUBE WrapPed ArouNd a syNthetic ruby roD; laTer, sCIenTists DiscoVereD tHat an ElectrIcal cHaRge shot through vArioUs gases (caRboN dIoxIdE, heliUM, argon) ProDucEd the saMe resulT.

the LaSER HaS hundreds of uses, notEs jACk hull of thE Laser iNsTiTUte of AmeRiCa iN WacO, tAxes:

"THey aRE uSed for suRveyinG OvEr Long disTaNces, anD eVen On cOnstrUCtioN sites Where theY need TO grade the site tO An exact level. A BUlLDOzER opeRatOr just lines The tOP of hIs blADe Up wITh a laSer thAt HAs BEen set at a specific heIgHt." Such A low-pOwer, continuouS-beam laser IS DAngerous Only IF yOU look directly iNto thE beam.

A diviSIon of the hugheS company ManufactuRES a laser cLotH-cuTtiNg mACHiNe that snips ouT THe piEcEs for huNdrEds of meN's sUitS in MinUtEs.

The capaCity of a lAsEr To CoNceNtratE Lots of heAt On a PiNpoInt maKEs certAin tyPes oF wElDIng Easier, aND hAS Made It PoSsibLe tO jOin tyPes oF MetAl previOusly thouGht INcomPaTiBle.

"If yoU don't want the hEaT to dissipaTe ThrOugh thE REst of the Metal, lasers are by far the bESt answeR," Mr. hull sAys. "THey are alsO usEd for hOle DRillinG, especIally WhEre YOU have TO DrIll LoTs of tiny hoLES. FoR examPlE, the Blades iN the turbine of a jet eNGinE have hundreds Of tIny hOLEs DriLLeD In tHeM. thaT'S Done with a laser."

LAsers are alSo IN tHe midst of rEVolUtIonizinG the comMunicATions inDustry. RatHer than usInG traDITioNal radio waVes and coPper wires TO tranSMiT infoRmaTion, suCh As tElephOne conVErsAtionS, commuNiCationS compAnIes are usIng lasers to transmit millIons of Bits oF inFormation Per SEcoNd. The infoRmatIon-laden liGht TraVels oVer HAir-thIn, beNDaBle FIbers Of glASs, says a scIEnTisT AT BEll TelephonE lABorAtoriEs
 given moment, all the pho tos in a l aserbea m s tr ikean o bject at the s a me t ime and in the same pl ace,th e  lig h tand i ts heat ar e man yti mes  m o re  inte nse .

Depe nding on t hepo wer and dura t io n of the b eam , a laser ca n s upplyth e e n ormou s b urstof hea t  neces sary to w el d  two p i eces of s te el t ogether, or it ca n  p r ovide just eno ugh he at an d dir ect ion to bur noff t h e dirt- -a n d  on l y the dirt --  on your fa v ori te out do ors tatue. 

A l as e r b eam "happen s" w hen energ y (int he form of regu lar, i nco her entl ig ht  or  e l ect r ic ity )  is  shot in to  a  subs tanc e s o  tha t t he m olecu les in that s ubs tanc e  ar e exc itedin a  s pecif ic way  to p ro duce a coherent  bea m of ligh t.Dr . M ai man's lasercon sis ted ofa flash tub ew r a pp ed around a synthe ti c ru by rod;later, sc ie n tists di sc ove redt h at an  ele c tr ical cha rge sh o tth rough v ar ious g as es(ca rbond ioxi de, he lium, ar gon)p roduced the sa m e result.

Th e  l a s er hashun dreds of us es,n otes  Jac k  H ull of th e Las er In s titute of America i nWaco,Taxes :

"They areused for s u r v eying ov er l o ng distances, and  even  on constr u ction si tes w here the y need to g rade the  si tetoane x ac t level. A bu l l doze roperato r j ust lin esthe  to p o fhis blade  up with  a  l as er  th at ha s  been se tataspe cific height ." Su ch a  l ow - pow er, con t in u o us-b ea mlase r i sdange rous onl y if yo u look di rec t ly i nt othe bea m.

A divisio nof the Hug he s c ompany m anufactu res a laser cloth-cutti n g machi nethatsnip s out the  pi eces f orh undred s of m en'ssu its i n min u t es .
Th e capacity o f a  lase rto c oncentr ate lots of heat o n  apinpoint make s c erta i n  t ype s  o f  we ld i nge a sier, and has m ade it pos si b le  to join t y pes  o f metal  previo uslyt houghtincompati ble.

"If  y ou d o n 'twant the h eat to d issipatet hroug h  t he re stof the  m eta l, la sers a r e b y far  the b es t answ er,"Mr . Hull s ays. "They are also use d forholedri lling, es pec i all y where y ou h ave to dri lllot s oftin y  hole s. F o rexa m ple,theb lades int he  tu r b in e of a jete n g ine  have  hu n dredsof t iny holes drilled in them. That' s do n e  wi tha  las er ."

Lasers are  al so i n the mi ds t of revolu tionizin gt he co mmunic ations  indust r y .R atherthan  us ing tradi tio na l  radiowa ve s  and c oppe rwiresto tra n smit i nformation, such  as t e l ephon e  co nvers at ions, c o mmun ications c ompanies ar e usin g la sersto tran sm it mil lio ns  of bits o f  informat ion p er seco nd . Th e i nforma tion - l adenligh ttra vels over h ai r -t hi n , b enda ble f ib ersof glass, says a s cie n tist at  B ell T elepho n eL a boratories 
 given_moment, all_the photos in a_laser beam_strike_an object_at_the same time_and in the_same place, the light_and its heat_are_many times more intense.

Depending on the power and duration of the beam, a laser_can_supply the_enormous_burst_of heat necessary to weld_two pieces of steel together,_or it_can provide just enough heat and direction to_burn_off the dirt_-- and only the dirt -- on your favorite_outdoor statue.

A laser beam "happens" when_energy (in the_form_of_regular, incoherent light or_electricity) is shot into a substance_so that the molecules in that_substance are excited in a specific way_to produce a coherent beam of_light. Dr. Maiman's laser consisted_of a_flash tube wrapped around a_synthetic ruby rod;_later, scientists_discovered that an_electrical charge shot through various gases_(carbon dioxide, helium,_argon) produced the same result.

The laser_has_hundreds of uses,_notes_Jack_Hull of_the Laser Institute_of_America in_Waco,_Taxes:

"They are used for surveying over_long_distances, and even on construction sites where_they need to grade_the_site to an exact_level. A bulldozer operator just_lines the top of his blade_up with_a laser_that has been set at a specific height." Such a low-power,_continuous-beam laser is dangerous only if_you look directly into_the beam.

A_division_of the Hughes_company_manufactures a_laser cloth-cutting machine that snips out the_pieces for_hundreds of men's suits in minutes.

The_capacity of a laser_to_concentrate lots of heat on a_pinpoint makes certain types of welding_easier, and has made it_possible_to_join types of metal previously_thought incompatible.

"If you don't want the_heat to dissipate_through the rest of the metal, lasers_are_by far the best answer," Mr._Hull_says. "They are also used for_hole_drilling,_especially where you have to_drill lots of tiny holes. For_example, the blades in the turbine of a jet_engine have hundreds_of tiny holes drilled in_them._That's_done with a laser."

Lasers are also in the midst of_revolutionizing the_communications industry. Rather_than using traditional radio waves and copper wires to transmit_information, such as telephone conversations, communications companies_are using lasers to transmit millions of bits of information per_second. The information-laden light travels over hair-thin, bendable_fibers of glass, says a scientist at_Bell Telephone Laboratories