科學(xué)發(fā)現(xiàn)II315卓越策劃achieverstrack

科學(xué)探索ScienceDiscoveryII科學(xué)探索ScienceDiscoveryIIFireSyringeDemoKit空氣生火器(AirCompressionandWhentheplungerinatransparentcylinderisrapidlypusheddownoverapieceofcottonorpapertowel,ignitionoccurs.Thisisoneofthemostimpressivedemonstrationsoftheheatproducedwhenagasisrapidlycompressed-theprincipaloftheDieselengineignition.SafetyGlassesrequired.Standsapproximately22cmtall(~8.5Smashing!SteelSphereDemokit撞擊發(fā)熱球(EnergyWhentwo1-pound,2-inchdiameter,chromesteelspheresaresmashedtogether,enoughheatisgeneratedatthepointofcontacttoburnaholeinapieceofordinarypaper!Thisamazingdemonstrationgraphicallyillustratestheconversionmechanicalenergyintoheatenergy.Althoughtherearenoflames,acharredholeappearsalongwiththeodorofburntpaper.Thekitcontainstwosteelspheresandinstructions.AstroBlasterMultipleCollisionAccelerator(ConservationofSeveralballsarethreadedonawire.Whentheapparatusisdroppedstraightdownwardontoahardsurface,thetopballcanreboundtoaheightequaltofivetimestheoriginaldrop.WOW!Leadsintoaninterestingdiscussionofwhat'shappenedduetotheLawofConservationofPolarizer偏光鏡Changingcoloroflightbytapeonthepolarizerbyinterference(onesheetis9x8cm)8Diffractiongratingglass衍射光柵鏡片(Light&HighestqualitydiffractiongratingglassDoubleaxis13500lines/inchseparatelight&measurelaserwavelengthSwingingRGBBall搖動(dòng)分色球(Light)Whenheldstationary,thisballappearstoglowwithwhitelight.Whenspuninacirclebythecord,onecanseethewhitelightseparateintoblinkingred,blue,andgreenlights.Fascinatingtowatchthedark.Greatforreinforcingthatwhitelightcanbeproducedbymixingthreecolorsof訂購(gòu)訂購(gòu)/查詢熱線Hotline:2714- 歡迎瀏覽網(wǎng)址Website:www.a-AlbertEinstein'sPhotoelectriceffect(AtomicMovethevioletlightontheyellowvinylsquareandobservethebrightlyglowingtrail.Bluelighthasenoughenergytoexcitethephosphorescentpigmentinthevinyl.Theexcitedpigmentthenslowlyreleasesenergyasgreenlight.RedLightdoesnothaveenoughenergytoaffectthepigment.Containsamountedsheetofphosphorescentvinyl(~15cmx15cm)andanincrediblevioletPhotonLightLEDonakey-chainSolarTube空氣膨脹管(AirExpansionWatchthetubegentlyliftintotheair.At60feetlongwitha72inchcircumference,thisisthelargestSolarTubeavailable.Runtofillwithcoolair,tieofftheend,andmoveitintothesun.Asthebagheats,the240cubicfeetofairexpands,becomeslessdense,andfloats.MagicSand魔術(shù)沙(HydrophobicExperimentisregularsandwhichhasbeendyedandcoatedwithahydrophobicsubstance--asubstancewhichrepelswater.Thecoatingontheoutsideofthemagicsandrepelswaterandkeepsthesanddry!Tostore,simplyremovethesandfromthewaterwithaspoon...itisperfectlyComesinonepoundMicroscaleVaccumApparatus真空實(shí)驗(yàn)(Boyle’sByreducingthepressureinthemicroscalebelljar,theycanexpandaballoon,boilwarmwater,andeventransferliquidsfromonepipettoanother.Theycanwatchamarshmalloworshavingcreamincreaseinvolumeasthepressureisreducedandlearnabouthowextremelylowpressureaffectstheworldaroundthem.Insteadofpassivelyobservingademonstration,studentscanactivelyexperimentontheirownandobservetheresultsrightbeforetheirLaserLensKit激光透鏡實(shí)驗(yàn)(Optical)canconduct theopticalexperimentwithconcave,convex,mirror,prism,anglemeasurementboardandlaserbox.Itis forconductingopticalsmallgroupexperimentPrism三稜鏡(大(3cminwidthand15cminConcavelenswithstand(10cmindiameterand20cminfocalConvexlenswithstand(10cmindiameterand20cminfocalConcavemirrorwithstand(10cminConvexmirrorwithstand(10cmindiameterand6.5cminfocalPrismwithstand三稜鏡(小(2.5cminwidthand9cminEYETHINKSpecialproductDIYCrystalAnimatorDropinoneofthe18animationstrips,lookinthemirrorofyourCrystalAnimator?,androtatethehandlebetweenyourpalms.Youwon’tbelieveyoureyes!Zoetrope經(jīng)典動(dòng)畫製作器--OurZoetrope’scompacteleganceandsmoothperformanceremainsunmatchedinworldofanimationtoys.OriginallydesignedbyFredDaMertandBillHanlonin1992andsoldbytheDaMertCompany,thistimelessfavoritehasbeenoffthemarketforyears.Now,withFred’sblessing,we’veproudlybroughtitback.CosmicZoom動(dòng)畫放大碟--Picturesandstoriesmagicallyexpand,move,andchangebeforeyoureyes!LoadaZoomtubewithanyinsertandslideitupthroughthecenterofyourCosmicZoom.Youwon’tbelieveyoureyes.Fantastic,colorfulworldsinstantlyexpand,unfoldinginanever-changingmyriadofcolors,pictures,patternsandtext,transportingyoutoplacesbeyondyourimagination!eyeMo動(dòng)畫放大器--AWorldofAnimationinyourPocket!Justslide eyeMopastoneopeneye.Thepicturesmagicallycomelifeandmove!Agymnastflipsthroughtheair,agorillalumbersthroughthejungle,afunnycartoonmangetsclobberedwitharedrubbermallet—andmore!StrobotopLightPhaseAnimator光頻動(dòng)畫器(OpticalSpintheStrobotop,aimyourLightPhaseratit,andadjustthedial.Suddenly,theblurringimagessnapintofocusandspringtolifebeforeyoureyes!BusyBody旋轉(zhuǎn)動(dòng)畫器(OpticalJustposeeachofthetenbendyalittledifferently.Thenspintheturntableandlookintothemagicmirror.ThereflectioninstantlycomestolifeandMOVES!Makethefiguresrun.Makethemjump.Makethemdoanythingyouwant!Easy-to-followvisualguidesgetyoustarted.Beforeyouknowit,youi’llbecreatingBusyBodyanimationsofyourown.Tough,durable,rubberfigurescanbeintonewpositionsoverandoveragain.MirroredturntableismadeofhighqualitySmartMoveCard動(dòng)畫咭Openupthecardandtheimagewillmovewithoutusingbatteries.Itiscreatedbyanoptical-technology.YouwilldefinitelybeEye(SM01),Cat(SM05),Horse(SM06),PianoHands(SM08),RunningMan(SM09),RunningWoman(SM13),Butterfly(SM14),SoccerPlayer(SM16