One the the most confronting features of the weightlessness is human body and mind functioning itself.
Human is the best known creature to adapt to new environment, so with training and imagination we might find them having fun eating, playing ball, etc.
Weightlessness even contributed to commercial successes like Space pen and findings like 'bizarre' behavior of rotating objects flip.
- People are intuitive physicists, knowing from birth how objects under the influence of gravity are likely to fall, topple or roll. In a new study, scientists have found the brain cells apparently responsible for this innate wisdom.*
- In a part of the brain responsible for recognizing color, texture and shape, Johns Hopkins University researchers found neurons that used large-scale environmental cues to infer the direction of gravity. The findings, forthcoming this month in the journal Current Biology, and just posted online, suggest these cells help humans orient themselves and predict how objects will behave.
The Japanese experimented with little fan packs to get around with in a capsule. When they were on the ISS. I don't know how that worked out.
But hey it was a good idea, the fans were activated with hold down button on them. So they wouldn't get carried away with it. A little push here and there.