Timeline for How far are space-walking helmet faceplates from the eyes? How far will I have to hold my "space binoculars" from my eyes during a space walk?
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
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| Mar 22, 2021 at 15:42 | history | answered | Carl Witthoft | CC BY-SA 4.0 |