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I'm wondering how would you move without gravity? You would still have air pressure at 1Atm.

Would you "swim" in the air or would you have do something else?

Xplane
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    Larry Niven speculated at length on the possibilities in The Integral Trees and The Smoke Ring. Many other source in the SF literature have had some guesses to make. – dmckee --- ex-moderator kitten Apr 26 '11 at 16:59
  • Those books are so awesome. I don't care if a lot of the characterization and dialog are really cheesy; the world is just so cool. http://en.wikipedia.org/wiki/The_Integral_Trees – Keenan Pepper Apr 26 '11 at 21:20
  • @Keenan: High Wow!-factor, and sometimes spotty characterization are par for the course with Niven. He does write really believable, human characters from time to time, but you can't count on it. I think it's the place he benefits most from collaboration. – dmckee --- ex-moderator kitten May 01 '11 at 23:40
  • Possible duplicates: http://physics.stackexchange.com/q/886/2451 and links therein. – Qmechanic Aug 03 '13 at 20:16

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The answer is: with great difficulty.

In a space ship there should be hand holds and footholds and a grid of ropes crisscrossing and you would move by pulling and pushing yourself: muscle power.

Air is too thin to get a reactive force to propel yourself effectively by swimming.

Once a motion is started, stopping will have to be taken into account too.

anna v
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Well we could use arrangements springs and nets.

Example: Suppose you want to get from A to B. There is spring at A (launcher spring) and there is another spring at C(deflector spring). There is a net at B to catch you. And the big black rectangle is a house.

You firmly push your head against spring at A and let go. Once you reach spring C it will deflect you and at B the net will catch you. Please wear helmet!

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I would grow long nails on my hands and feet, and then run like a beast with the nails firmly in the soil at all times :) If I accidentally leave the surface, I would huff and puff in the reverse direction until I reach the surface again.

BjornW
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    Because Water (all of it!) would not stay in rivers/sea and soil once levitated from ground would "fly" around, we would have a lot such floating "things" around to grip and throw backwards. – Georg Apr 26 '11 at 19:59