[net.space] Intensity of Space Sickness?

DMRussell@PARC-MAXC (12/15/82)

Does anyone have a feel for "how sick" space sickness makes you feel?  If it's
anything like seasickness, I'm not sure I'd want to be in the same shuttle with
someone who has space sickness, let alone trusting them to pilot the thing
around.  Is it as intense as ordinary, land-based motion problems? Or is it just
feeling queasy?  

Also, why did the problem (apparently) first surface in American astronauts
when they moved into larger ships?  An educated guess would say that  you
can't get sick when packed like a sardine into a Gemini or Mercury, but that the
free space of Apollo or Soyez allows your hard-wired inertial guidance to get
confused from so much visual motion uncoordinated with your own.  Or was it
just that the early flights weren't long enough for the adrenelin "high" to have
worn off?  

-- DM Russell --