The-Light-Stuff

ProcessofShenzhouVIII’slaunchment:Whenyouareinthespaceship,whatproblemwillyoumeet?InformationaboutshenzhouspaceshipsShenzhouVShenzhouVIAstronautsYangLiweiFeiJunlongNieHaishengEatingsmallbiscuitmineralwaterhotmeal(foodsheatunit)Sleepingonchairsleeptoolittlesleepingbag(awarmfabric)ToiletingnotoiletAspecialcollector英语106田菊花朱诗琪byDouglasColliganBackgroundinformationSkylabBytheearly1970s,America’sspaceagency,NASA(NationalAeronauticsandSpaceAdministration美国国家航空航天局),hadprovedthatitwasabletogetpeopletothemoonandback.However,itwasnotsurehumanscouldsurviveinspacelongenoughtomaketripstodistantplanets.So,NASAdecidedtolaunchanexperimentalorbitingspacestationtofindout.CrewsofastronautswouldbelaunchedinanApollospacecraft.Theywouldlinkwiththespacestation.Whentheywerefinishedworkingthere,theywouldreturntoEarthintheApollospacecraft.ThespacestationwascalledSkylab.Thosetwolittlewords―skyandlab―describeditverywell.Skylabwasalaboratoryhighinthesky.TheSkylabprogramhadfourgoals.First,scientistswantedtoknowhowlongtripsinspacewouldaffectthehumanbody.Skylab’ssecondgoalwastostudythesun.SkylabalsocouldtellusmoreabouttheEarth.Finally,theastronautsonSkylabwoulddoexperimentsonindustrialmaterials.Skylabwasreadyforlaunchin1973.However,Skylab’svoyageinspacedidnotbeginwell.Skylab（天空实验室）Skylab（天空实验室）太空站内置图GeneralquestionAbsenceofgravity,zero-g,weightlessnessWhatisthelightstuff?StucturaldiagramThelightstuff1problem2analysis3-19solution20-21evalution3general4-7wear8-12eat13hygiene14-15sleep16-17exercise18-19livewearMuchoftheattentionisonoutfittingthebodyforweightlessness.Duringflihgts,troublegettingintospacesuite,tootight,becauseastronautsbecometaller.Tocompensateforthis,suitsissuedtoastronautsaredesignedtogrowwiththeirwearers.zero-gbodieschangeshapeaswellaslength.Soastronautsweaeantigravitypants.EatSpacemealshaveprogressedfromsuchitemsasgelatin-coatedcoconutcubesandpeanutcubestocompleteheat-andservemealsonboardskylabandthespaceshuttle.Spacemealsareassembled.Weightlessnessalsoaffectswhatkindoffoodisinside.likechiliwillgoflyingallover.Eatingutensilsaremadesmaller.Eventasteisaffectedbyzero-gHygieneThetoiletinthespaceshuttlehasafootrest,handholds,andaseatbelttoholdtheuserinposition.Awaterguntowashupisamessydesign.Waterishardtocontaininspace.SleepUsingasleepingbaganchoredverticallyorhorizontallytoafirmsurface.Butthereareoddcomplications.Sufferfromthecloudsofdioxide-ladenairexhaledduringthenight.exerciseReason:thehumanbodytendstolosemuscletoneinweightlessness.Solution:Skylabastronautskeptinshapebyridingastationarybicycleexerciserandwalkingonaningenioustreadmill.(设计独特的脚踏车)Problem：withoutfansblowingonthem,theairheatedbytheirbodiestendstohovernearby.Solution:placeafanbythebicycletohelpevaporatethesweat.liveProblem1:standingstillisimpossible.Solution:astronautsattachsuction-cupsoles(带吸杯的鞋底)totheirshoestokeepthemanchored.Problem2:noonecansitdownintheearthboundsense.Solution:furniturehastoberedesignedtosuitthezero-gstoop.