2007-06-10 18:29:18 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Up and down are determined by gravity and the surface you are on. Down is towards the source of the gravity of the surface you are on. If you are in space and are still under the influence of a nearby source of gravity, then towards that source is down.
An interesting place is the boundary between two sources of gravity where their influence is equal. Maybe there, there is no up and down.
2007-06-10 22:18:42 · answer #1 · answered by smartprimate 3 · 0⤊ 0⤋
Any which way that is convenient. If you are using spin to simulate gravity, up becomes the center of rotation. This is OK for internal reference, but plays hob with external observations.
2007-06-11 02:21:08 · answer #2 · answered by Helmut 7 · 1⤊ 0⤋
There is no absolute up, you would have to fix a refference frame in a completely arbitrary manner and then you would have an "up" direction. unless you're in a ship with uniformly-accelareted motion then you would think up is like on earth, ie above your head... like someone said, read up on einstein!
2007-06-11 01:51:16 · answer #3 · answered by jsos88 2 · 0⤊ 0⤋
It depends on what your frame of reference is. Up is a relative direction, not an unchanging one. This is a really interesting field if you're interested, read up on Einstein's theory of relativity.
2007-06-11 01:38:37 · answer #4 · answered by RJ 4 · 1⤊ 0⤋
If one is accelerating, the direction towards which one is moving is up.
If one is at a constant velocity then there is no up or down.
2007-06-11 06:22:36 · answer #5 · answered by A.V.R. 7 · 0⤊ 0⤋
there is no up or down in space
2007-06-11 02:08:03 · answer #6 · answered by Dr. Eddie 6 · 1⤊ 0⤋
Every which way is down because you are always in free fall.
2007-06-11 20:09:01 · answer #7 · answered by johnandeileen2000 7 · 0⤊ 0⤋
in space ther is no such thing as up or down.
2007-06-11 02:32:40 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Above your head
2007-06-11 01:36:26 · answer #9 · answered by Stephanie73 6 · 0⤊ 2⤋
What ever you consider up.
2007-06-11 01:38:59 · answer #10 · answered by M&M 5 · 0⤊ 1⤋