## ganeshie8 2 years ago is rotation possible for a person in space ?

1. experimentX
2. henpen

I'm probably getting the wrong end of the stick, but I'd think not based on conservation of angular momentum.

3. erica.d

yes rotation is possible in space for like infinite time, provided that , once that person should be rotated, he will keep rotating

4. henpen

That assumes that an independent 'rotator' is present, and I assume that ganeshie was asking about an independent self-rotator.

5. erica.d

that could be possible , for being a self rotator a person need to move himself using is inertia , i think he can rotate, provided that there should be platform over which he can have force of friction or something lol

6. henpen

By the conservation of angular momentum, he could only spin some of himself clockwise by spinning an equal part anticlockwise.

7. Mikael

$\Huge\text{ A man is NOT a rigid body}$ http://en.wikipedia.org/wiki/Falling_cat_problem http://en.wikipedia.org/wiki/Cat_righting_reflex

8. Mikael

@ganeshie8

9. experimentX

huh ... i thought this was absolute rotation problem? http://en.wikipedia.org/wiki/Absolute_rotation

10. Mikael
11. ganeshie8

thnks friends :) so its possible for a person to rotate himself. i dont understand the explanation in link completely... i feel i lack fundamentals. il get back after som more studying thank you :)