Suited for Spacewalking pdf - Virtual Astronaut

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need to be able to move arms, hands, and legs toperform an array of tasks in space. They must beable to operate many types of scientific apparatus,collect samples, take pictures, assemble equipmentand structures, pilot themselves about, and repairand service defective or worn-out satellites andother space hardware. The tasks of astronauts outsidetheir mother ship are called extravehicularactivities, or EVAs.8 • Suited for Spacewalking An Activity Guide for Technology Education, Mathematics, and Science, EG- 1 9 9 8 - 0 3 - 1 1 2 - H Q
The Outer Space EnvironmentOuter space is just what its name implies. It isthe void that lies beyond the uppermost reaches ofthe atmosphere of Earth and between all otherobjects in the universe. Although it is a void, outerspace may be thought of as an env i ron m e n t .Radiation and objects pass through it freely. Anunprotected human or other living being placed inthe outer space environment would perish in a fewbrief, agonizing moments.The principal env i ronmental ch a ra c t e ristic ofouter space is the vacuum, or nearly total absence ofgas molecules. The gra v i t a t i onal attra c t i on of largebodies in space, s u ch as planets and stars, p u lls gasmolecules close to their surfaces leaving the spaceb e tween virt u a lly empty. Some stray gas molecules arefound between these bodies, but their density is so lowthat they can be thought of as pra c t i ca ly non e x i s t e n t .On Earth,the atmosphere exerts pressure in al ldirections. At sea level, that pressure is 101 kilopascals.In space, the pressure is nearly zero. With virtuallyno pressure from the outside, air inside anunprotected human's lungs would immediately rushSuited for Spacewalking An Activity Guide for Technology Education, Mathematics, and Science, EG-1998-03-112-HQ • 9
Page 1: National Aeronauticsand Space Admin
Page 6 and 7: National Education StandardsThe act
Page 8 and 9: National Mathematics StandardsNatio
Page 10 and 11: M e a s u r e m e n tThis activity
Page 14 and 15: out in the vacuum of space.Dissolve
Page 16 and 17: Project MercuryEarly spacesuit desi
Page 18 and 19: to occur for the first time. As wit
Page 20 and 21: crew, an additional portable heat s
Page 22 and 23: and reentry, special orange-colored
Page 24 and 25: The SCU contains lines for power, c
Page 26 and 27: 17.Communications Carrier Assembly
Page 28 and 29: settings to be read. Setting number
Page 30 and 31: digital display on the chest-mounte
Page 32 and 33: Astronaut Joe Tanner works on the H
Page 34 and 35: humidity when oxygen is flowing fro
Page 36 and 37: The problem of picking up rocks and
Page 38 and 39: Bruce McCandless II pilots the MMU
Page 40 and 41: Mark C.Lee test flies the Simplifie
Page 42 and 43: STS-76 astronaut Michael R. Cliffor
Page 44 and 45: Spacesuit technicians test the mobi
Page 46 and 47: Future spacewalkers will roam the s
Page 48 and 49: Introduction:The steps spacesuit en
Page 50 and 51: Design BriefC o n t ex t :Spacesuit
Page 52 and 53: Interface Control DocumentPage 1 Of
Page 54 and 55: Pulley close-upviewthe buck e t . T
Page 56 and 57: to them. Use a metric ruler for mea
Page 58 and 59: steel would make an excellent micro
Page 60 and 61: d ay or tw o, Ap o llo spacesuit ma
Page 63 and 64:
Sleeve and Leg TesterInflated segme
Page 65 and 66:
ity alone.If a scale were present,
Page 67 and 68:
Exploration BriefMicrometeoroids an
Page 69 and 70:
InvestigationPotato Astronaut—Par
Page 71 and 72:
Exploration BriefKeeping Your CoolC
Page 73 and 74:
AssessmentHave students design a gr
Page 75 and 76:
InvestigationInsulating LayersIn th
Page 77 and 78:
e nv i ronment experienced in Earth
Page 79 and 80:
Arm Range of Movement Data SheetSub
Page 81 and 82:
Body Size Range MeasurementsBased o
Page 83 and 84:
ProcedureStep 1. Obtain the materia
Page 85 and 86:
Magnified view oftire valve and cla
Page 87 and 88:
Extensions• Compare the stiffness
Page 89 and 90:
2. Tethers4. Connector Seal TestPla
Page 91 and 92:
9. Vacuum Experiment - 1Obtain an e
Page 93 and 94:
You can investigate neutral buoyanc
Page 95 and 96:
MMUMercuryORUPLSSRegolithRMSSCUSkyl
Page 97 and 98:
NA S A’s Central Ope ra tion of R
Page 99:
Suited for Spacew a l k i n gA Te a
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