What about a graphene baloon round the equator how high would it need to be to take off and land spaceships in 0 gravity... how many and how thick would the roaps need to be to hold it still... what would its volume be?... sky hooks are in!
What happens if you spin it?
The earth is very hot and a magnet has a max temp.
What happens if you spin it?
The earth is very hot and a magnet has a max temp.