Assume the following:
You have a platform sitting on 101 km high tower (the tower is from magical material)
You are in space, you send a man with an elevator on top of that platform.
What will happen to the man?
Is there will be gravity on that platform or he will float in microgravity?
If he floats in microgravity will the platform start drifting away from him - the earth rotates?
Assume the following:
You have a platform sitting on 101 km high tower (the tower is from magical material)
You are in space, you send a man with an elevator on top of that platform.
What will happen to the man?
Is there will be gravity on that platform or he will float in microgravity?
If he floats in microgravity will the platform start drifting away from him - the earth rotates?
There will still be gravity, just reduced by 1/r^2.
It is orbital speed and the resultant centripetal force that cancels out gravity and "creates" microgravity
r is the distance to the centre of mass of the Earth in this case. Because the radius of the Earth is much bigger than 101km, there won't be much difference between being on the tower and on the surface (although you would certainly be able to detect it with a decent set of scales)
Alternatively, you could say that you would would still be in a non-interial frame and so feel a force from the tower pushing you. Step off the tower and you would start to fall towards the Earth - at that point you would feel zero gravity, and then microgravity as you encountered thin atmospheric resistance - followed by some kind of re-entry...
The height the tower would need to be for the Earth's rotation to provide microgravity would co-incide with geostationary orbit (some 35,786km in height) - oh and you better start building (summoning/invoking) on the equator...
http://en.wikipedia.org/wiki/Geostationary_orbit#Derivation_of_geostationary_altitude