And I'm lookingat a photographofmyfriendMeganMcArthurandthey'rewearingbelts.
Sowhydoyouneedbeltsinspace?
Kindof a goodquestion, but I thinkit's justtokeepyourpantsup, you'renotgonnahavegravitypullingyourpantsdown, butifyourpantsarefittingreallywell, they'llkindoffloataroundyou.
Buthaving a belt, I usedthebelt, infact, lookatthis, I'm using a belt.
Now, I worethisbeltinspace.
Thisisactuallyflowninspacebelt.
So I broughtmyownbelttospacetokeepmypantsoncorrectlyand I thinkit's moreof a comfortthingandalsomaybesomeexcusestoget a beltflowninspacebecause I wasabletobringithomeandandwherethisnextoneisfrom, atMiguelTavares.
Sowhen I wasworkingontheHubblespacetelescope, myfeetwouldbeinin a in a footrestraint.
Somyfeetareniceandsolidandthen I couldreactthatforcethroughmyfeet.
If I didn't havemyfeetandfootrestraints, I wouldtrytopushthewrenchandmyfeetwouldgoflyingthisway.
Anotherinterestingthing, maybe a littlemoreadvancedtothinkaboutiswhenyou'reundoing a boltoryou'regoingthrough a hardstopon a boltandyougettotheend, it's gonnagiveyou a kick.
Sowewouldalwaysthinkaboutreactingitwithourarmswereoutthereinourspacesuitswillbeinourfootrestraintsand I alwayshavemyarminpositiontoabsorbthatkickthatwewouldgetattheend.
Sowe're a lotsteadieronEarthwhenweworkwithtoolsandworkonthingsinspace.
It's a littlemorechallenging, but I preferit's a lotmorefunatDemahajjquestionforastronauts, onlyforastronauts.
Whereyourpoopoogoonthespaceshuttles, wedidhave a commode, itwasnot a flushtoilet, ithad a seaton.
Itwasfairlycomplicated.
Youhavetoturnitonandcreate a vacuumandmakesureeverythingwaswe'resupposedto.
Allyourwastegarbagethingsyoudon't needgointhereandgetsealedoffafter a whileitreentersandeverythingburnsupduringreentry.
Thatis a muchbetterwaytogo.
Theshuttletoiletwasveryexpensiveandcomplicated.
Thisthingis a cananditworksreallywell.
Sothat's wherepoopgoesororpoopooasitsaysat v.
w.
b.
58.
Whydoastronautshavemirrorsontheirgloves?
Thisis a reallygoodquestion.
I thinkwehavemirrorsonourgloveswhenwelaunchintospaceincasethere's aninstrumentor a panelorsomething, youneedtoseebehindyou.
It's reallyhardwhenyou'relaunchingintospaceandwhenyou'relandingtomoveyourheadaround, youhave a helmet, youcankindofturnyourhead a littlebitbutyoucan't reallyseebehindyousowell.
Sohaving a mirrorrightonyourwrist, makesiteasiertoseebehindyouifyoulookcloselyat a spacewalkingsuit.
You'llgoflyingnowinthewater, youkindofneedthatactuallybecausethewaterviscosityslowsyoudownandmakesyoumorestable, requires a littlemoreforcetomovearound.
Inotherwords, doyouonlyneedtosayfueltoeitherchangespeeddirectionortoslowdownifyou'reinanorbitaroundaroundEarth, let's let's takethatastheexamplehere, therestillis a littlebitofdrag.
Now, ifyou'refamiliarwiththedragequation, Itsvelocitysquaredifyouhave a largeamountofvelocitylike 17,500 mph, yousquarethat, that's a reallybignumber.
Soevenjust a littlebitofresistancecangiveyouenoughdragthateventuallytheorbitwilldecayfromatmosphericdrageventhoughit's justlittletracesofit, there's still a littlebit, you'llgetlowerandlowerandeventuallyreentertheplanet, whichiswhathappens.
Thisrequires a longeranswer, butwe'renotdoing a longeranswer.
We'regonnado a shortanswer.
Ithaswhatthey'regonnagowiththelonganswer.
When I was a newastronaut, SergeiKrikalev, a Russiancosmonauthadjustcome, hehadbeenonmirror a fewtimesonspacestation, MIrhadjustcomebackfrom a shuttleflightandhesaidtherewas a verydistinctodoryoucomeinsidetheairlock, youclosedthedoortospaceandyouopenedthedoortothespacecraftinsidewhenyouenterthatairlockiswhatSergeitoldmeitwasthesamesmellonmirasitwasonthespaceshuttle.
Sosureenoughafterthefirstspacewalk I wasnotoutside.
I wasinsideforthefirstspacewalkhelpingtheguysoutsideassoonasthespacewalkwasover I openedupthehatch.
I wentintherestarted I'vegot a goodnoseforsmellinganditwasthisverymetallicsmellalmostlike a burntmetalsmellandit's verydistinctand I'd liketothinkthat's whatspacesmellslikeatAlmira A.
And I saidyesthisbigexplosionandtheuniverseisexpanding.
Hegoesnononononotheshow, I waslikeyeah, I thinkatthattime I hadit, I wasn't thatfamiliarwiththeshow, I kindofheardofitbuthesaidtheywantedtospeaktoanastronautaboutsending a persontospaceand I washavingtobeinLosAngelesmaybe a coupleweekslater.
And I wentbytheWarnerbrothersstudiototheWriter's roomwhichwasextraordinaryBillPradyandchuckLori, thecreatorsoftheshowandtheirwritingteamwasthereand I toldthemstorieskindoflike, I'm tellingyounowany, I wantedtoworksomeoftheseideasintotheirscriptsso I helpthem a littlebitwiththat.
I wenttosee a tapingandaboutsixmonthsafterallthis, theygot a notefromBillPrady, oneofthecreators, andhesaid, heymike, we'd likeyoutodo a cameo, whatdoyouthink?
And I waslike, okay, so I wentinand I did a cameoandthatledtosixmoreand a lotofgoodfriendshipsoutofthatwiththecastandthecrewanditwas a greatexperience.