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mischief
7th January 2005, 04:00 PM
[SIZE=1] :huh:
Hi! Ppl....I got to know about this site and joined instantaneously. Coz' a lot of question, keep me boggling over to which i find no reply. At times, they are childish, at another some are to which any child would know the answer. I remain confused, having got to mug up a lot of things in this indian education system, and to complement it a lot of family tensions. Well, I'm drifting away..
Back to the point... Will anyone clear my query? :think: If an air plane(just suppose it) gets above the eart's atmosphere, troposphere and remain there static, having velocity of "0" (Since, being static is impossibe in a frame of refrence, in one or the other). And since, the earth revolves n rotates, would it be possible that after some time, the destination of the plane is to come, the air-plane comes down.
I know this mght sound childish...coz of all the existing theories..
1. The air-plane can't be static in a frame of refrence in respect to the earth.
2. The air-plane(noramal) has no chances of existing above the earth's atmosphere.
3. N the earth also revolves besides rotating, and once "my plane" goes above the said level, it will have to wait for 365 1/4 days to come back, even if it is possible! :ph34r:

Will someone move me from ignorance to light??

Thomas Knierim
8th January 2005, 11:02 AM
Some quick answers:

1. Yes, it can. If the airplane is static with respect to an arbitrary point on the equator, that's called a geostationary orbit. Virtually all communication satellites are in geostationary orbits.

2. Right, air planes are not built for this.

3. In this case the airplane would be stationary relatively to the Sun, not the Earth.

Cheers, Thomas

todd
23rd March 2005, 09:04 AM
here you have some answers:

http://en.wikipedia.org/wiki/Single_stage_to_orbit
http://en.wikipedia.org/wiki/Space_elevator