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22 votes
Accepted

What was the space helmet "vomit port"?

I think the device in question is described in US Patent 3,437,165 "VENTING DEVICE FOR PRESSURIZED SPACE SUIT HELMET" (filed Feb 27, 1967). It is possible that NASA did not file immediately ...
Polygnome's user avatar
  • 6,956
7 votes
Accepted

Is the term 'lead head' used by astronauts?

Long time, no answer, so I'll take a stab at it...please be aware that all of my "evidence," while purely anecdotal, is first hand. I never heard the subject term, "lead head" used in this context (I ...
Digger's user avatar
  • 4,185
7 votes
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What makes Space Adaptation Syndrome worse?

Well, there are probably several body motions that can exacerbate SAS. Anecdotally, I can tell you that it was well understood by Shuttle flight crew that the act of doffing the Advanced Crew Escape ...
Digger's user avatar
  • 4,185
6 votes

What does the Moon's gravity feel like? If you don't move, could you still tell you're on the Moon?

When the Apollo astronauts were stationary and not moving around, could they tell they were in a much reduced gravitational field or did everything feel quite normal? Yes, while their mass would ...
Schwern's user avatar
  • 8,016
6 votes
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Does space sickness determine when astronauts have their last meal?

No. The prelaunch timeline for the crew was closely scheduled. Shuttle crews were awakened ~ 5 hours prior to the scheduled liftoff time and ate a meal shortly after they woke up and got dressed. ...
Organic Marble's user avatar
6 votes

Is the vestibular system ever useful in spaceflight?

During the first 3-4 days of spaceflight the vestibular system is essentially useless as the brain becomes confused by sensations in the inner ear that do not match what is seen with the eyes. For ...
Steve Pemberton's user avatar
5 votes

Is the vestibular system ever useful in spaceflight?

Answer: The vestibular system is useful in spaceflight for maintaining visual fixation. Without a vestibular system, vision would be degraded when the head is moving in relation to the object of ...
Woody's user avatar
  • 22.3k
5 votes
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ACES helmet and space sickness

I just went to an astronaut talk (Mark Polansky). The action of talking off the ACES suit neck ring was what exacerbated the sickness. The interior of the suit, like other pressure suits, is a rubbery ...
CourageousPotato's user avatar
3 votes
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Space adaptation syndrome compared to BPPV (vertigo)

Yes. They have little in common, beyond both resulting in a mismatch between vestibular data input to the brain and what’s actually going on, resulting in symptoms that impair performance. In SAS, ...
JPattarini's user avatar
3 votes
Accepted

How soon was the Garn scale of nausea established after the senator's spaceflight?

I don't consider this answer to be definitive, but it's most likely the best we will do here... I remember hearing some stories around NASA's Astronaut Office, probably in the ~1998 time frame, about ...
Digger's user avatar
  • 4,185

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