Timeline for Is there a way for an astronaut to rotate?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Dec 19, 2015 at 13:01 | history | edited | N. Virgo | CC BY-SA 3.0 |
added 155 characters in body
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| Dec 4, 2013 at 3:42 | history | edited | N. Virgo | CC BY-SA 3.0 |
re-wrote the whole thing in an effort to avoid further down votes
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| Dec 4, 2013 at 3:37 | comment | added | N. Virgo | I've re-written the whole thing - I think the previous version was unclear, as people were voting it down for some reason. | |
| Dec 4, 2013 at 3:36 | history | edited | N. Virgo | CC BY-SA 3.0 |
re-wrote the whole thing in an effort to avoid further down votes
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| Nov 30, 2013 at 14:18 | comment | added | N. Virgo | @David conservation of momentum is actually the reason why it does work. She transfers angular momentum to her arm when she starts the motion, and it gets transferred back when she stops. Since her body has a different moment of inertia from her arm, her orientation will not be the same after one revolution. | |
| Nov 29, 2013 at 15:53 | comment | added | dmckee --- ex-moderator kitten | @David Springboard divers do it all the time (though only for half-twist moves, there is a different mechanism related to unstable tumbling about $I_2$ used for high twisting). See congusbongus' answer. There is no conservation rule for angular orientation; only for angular momentum and non-rigid composite bodies can alter the phase of their rotation (i.e. their orientation if non-rotating). | |
| Nov 29, 2013 at 10:25 | comment | added | David | It will not work. When the astronaut will try to put bodies back at rest, she will come back to the same orientation. Thanks to the conversation of the angular momentum law. | |
| Nov 29, 2013 at 10:17 | history | answered | N. Virgo | CC BY-SA 3.0 |