Question:
Artificial Gravity?
anonymous
2008-07-18 22:38:42 UTC
Centripetal Force used to create artificial gravity sounds interesting. The problem I can't figure out is, if a ball is floating inside of a large spacestation, and then you spin the spacestation, how does a spinning ship affect the ball that is floating in mid-air? It isn't attached to the center or the outside wall, so it shouldn't be pulled towards the outside, right? It should remain floating with no force pulling it to the outside of the station.
Five answers:
anonymous
2008-07-19 07:25:11 UTC
Before the space station spins, everything not attached should be "floating" inside it.



When the space station is made to spin, to experience "artificial gravity", everything must spin with the space station.



If the ball is not attached somehow to the space station, and does not spin with it, it remains "floating" as the space station turns past it.



However, if the ball was "floating" in a e.g. room on the space station,

it will hit a wall when the station starts spinning. This will make it spin with the station, (perhaps after a few rebounds), and it will "fall down", towards the "floor" ( the" floor" will be the outer surface of the room)



The acceleration at the outer edge of a space station of radius "r" rotating at "n" rotations per second is:-



accn. = 4 * pi^2 * n^2 * r



With a suitable choice of "n" and "r", the acceleration can be made equal to 9.8 m/sec^2, as on the Earth's surface.

People standing at the outer edge of the space station as it turned would then "feel their normal weight".



However, should they somehow move nearer to the centre of the spinning station, they would feel "lighter and lighter", and float again if they reached the centre,



The space station in the film 2001 showed the effect.

.
spero
2017-01-05 08:15:46 UTC
Albert Einstein confirmed that gravity and acceleration are the comparable stress. The effect is the comparable while you're status on the exterior of the Earth, or are in a spaceship continuously accelerating at 1g. considering you are able to strengthen up continually devoid of accomplishing the value of sunshine, you are able to generate gravity for as long as you pick it, offered you are able to return and forth in a at present line and function sufficient means to maintain accelerating. you additionally can simulate gravity by utilizing centripetal stress, spinning a craft a pair of appropriate axis, yet this introduces Coriolis consequences, and make shifting gadgets return and forth in curved paths. you may make amends for those consequences, in spite of the indisputable fact that, and spinning could be a pragmatic exchange for acceleration. Anti-gravity will probable exist purely in the technological know-how fiction realm. considering gravity is an user-friendly stress, like the electrical powered, susceptible and robust forces, it probable has a stress provider, like the photon, w or z particle. The latter 3 have not have been given any anti particle, so that's logical to anticipate gravity would not the two. as an occasion, there isn't any anti-photon. To have anti-gravity, we'd choose an "anti-graviton." one among those element is amazingly possibly to no longer exist.
Anderson
2008-07-18 22:44:07 UTC
It shouldn't affect the ball I believe. If it were to affect it, it could possibly happen if the space station is spinning at great speed.
johnandeileen2000
2008-07-19 08:39:31 UTC
You are correct, only items that are are in contact with the rotating surface will be affected.
sherieilyn
2008-07-18 22:49:51 UTC
are you saying the ball is affected? i read that the speed of light is not constant because it is affected by gravity, c is used as a yardstick that we can't measure beyond.


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