24 Dec '14 06:48>
I understand the part where you have an extremely strong cable going up to geostationary orbit and such but I am having difficulty visualizing the part where you extend the cable to 100,000 km or so past geostationary orbit.
I can see if the cable was a super strong tower and the whole thing spins around the Earth and such, the whole thing swinging around in a straight line.
But you have a flexible cable and then extend it out further, way further.
The orbital velocity of something up 100,000 km is a lot lower than at geostationary altitude.
So how can the cable maintain itself to be straight? Is it just centripetal force keeping it straight? The whole cable would have to be in a straight line I would think but how do you keep the far end at the faster velocity of the lower sections?
It looks to me like the far end of the cable would lag behind and so would start some kind of whipping effect.
Am I missing something here? I keep thinking something like a rocket at the top would have to add velocity to keep up with the lower altitudes like at geosynchronous height and if so would a one time thrust be enough or would the whole affair be unstable and require velocity adjustments every now and then like the ISS has to use rockets maybe once a month to keep it at the right altitude.
Just don't know. Anyone with more knowledge of this subject out there?
I can see if the cable was a super strong tower and the whole thing spins around the Earth and such, the whole thing swinging around in a straight line.
But you have a flexible cable and then extend it out further, way further.
The orbital velocity of something up 100,000 km is a lot lower than at geostationary altitude.
So how can the cable maintain itself to be straight? Is it just centripetal force keeping it straight? The whole cable would have to be in a straight line I would think but how do you keep the far end at the faster velocity of the lower sections?
It looks to me like the far end of the cable would lag behind and so would start some kind of whipping effect.
Am I missing something here? I keep thinking something like a rocket at the top would have to add velocity to keep up with the lower altitudes like at geosynchronous height and if so would a one time thrust be enough or would the whole affair be unstable and require velocity adjustments every now and then like the ISS has to use rockets maybe once a month to keep it at the right altitude.
Just don't know. Anyone with more knowledge of this subject out there?