The counterweight orbits above escape velocity, pulling the space elevator’s cable taut. If the cable were severed the counterweight would drift off into space into a solar orbit. So if you jump off at the counterweight, you’ll enter solar orbit.
At geostationary orbit (which could be considered the “top” of the space elevator as that’s where you would normally get off, presumably) the space elevator orbits at exactly orbital velocity, so if you jump off there you end up in orbit. Below that your velocity would be below orbital velocity and you’d fall back to Earth.
Well, the “top” of the elevator could be anywhere. That’s why I said it needs to be as low as possible, because it’s already physically impossible for Earth. The lower and lighter the station is, the less impossible it is, though it’s impossible even with no station and just a cable.
Above geostationary orbit isn’t suddenly in solar orbit though. It’s still got quite a ways to go. It could be at escape velocity, but that’s not necessary.
This is all impossible on Earth anyway though, so if you’re making a story where this is taking place it could be any of these outcomes you want. Whatever works best for the story.
It’s not “physically impossible” on Earth. The forces involved are great, sure, which means you can’t build it out of any present-day material like steel, but they’re not so great that constructing a space elevator would be physically impossible using non-exotic matter like it would be on, say, the Sun, or possibly even just Jupiter. We already know of materials that could be used to make a space elevator cable on Earth if they were available in sufficient quantities – namely carbon nanotubes.
The “top” can’t be anywhere, because not everywhere along the length of the elevator will put released objects in orbit. Turns out on Earth, an object released off of the elevator would reach a stable (but very eccentric) orbit 2/3rds of the way to geostationary orbit – below that, it would fall back to Earth. Conversely escape velocity would be reached at about 53000 km, which is past geostationary orbit but much closer than where the counterweight would be (in most designs?). Objects above escape velocity will by definition escape Earth’s orbit, which most of the time means ending up in a solar orbit.
No, it’s physically impossible. Even the most advanced material possible couldn’t hold the strain that would be required for Earth. Technically it’s right on the limit, but that’s ignoring that we have an atmosphere that’s going to exert forces on it too. On Luna it might make sense.
The top can be anywhere. It would just require adding force to it at/after release. That’s trivial. We already know how to make rockets, or it could be something that pushes or throws it. Compared to building a space elevator, speeding something up is easy.
No, it’s not physically impossible. For an explanation see my previous comment.
I find it funny that you started this conversation by telling me that I’ve “got space elevators wrong” and then proceeded to spout strange and verifiably false nonsense like this on multiple different points.
The counterweight orbits above escape velocity, pulling the space elevator’s cable taut. If the cable were severed the counterweight would drift off into space into a solar orbit. So if you jump off at the counterweight, you’ll enter solar orbit.
At geostationary orbit (which could be considered the “top” of the space elevator as that’s where you would normally get off, presumably) the space elevator orbits at exactly orbital velocity, so if you jump off there you end up in orbit. Below that your velocity would be below orbital velocity and you’d fall back to Earth.
Well, the “top” of the elevator could be anywhere. That’s why I said it needs to be as low as possible, because it’s already physically impossible for Earth. The lower and lighter the station is, the less impossible it is, though it’s impossible even with no station and just a cable.
Above geostationary orbit isn’t suddenly in solar orbit though. It’s still got quite a ways to go. It could be at escape velocity, but that’s not necessary.
This is all impossible on Earth anyway though, so if you’re making a story where this is taking place it could be any of these outcomes you want. Whatever works best for the story.
It’s not “physically impossible” on Earth. The forces involved are great, sure, which means you can’t build it out of any present-day material like steel, but they’re not so great that constructing a space elevator would be physically impossible using non-exotic matter like it would be on, say, the Sun, or possibly even just Jupiter. We already know of materials that could be used to make a space elevator cable on Earth if they were available in sufficient quantities – namely carbon nanotubes.
The “top” can’t be anywhere, because not everywhere along the length of the elevator will put released objects in orbit. Turns out on Earth, an object released off of the elevator would reach a stable (but very eccentric) orbit 2/3rds of the way to geostationary orbit – below that, it would fall back to Earth. Conversely escape velocity would be reached at about 53000 km, which is past geostationary orbit but much closer than where the counterweight would be (in most designs?). Objects above escape velocity will by definition escape Earth’s orbit, which most of the time means ending up in a solar orbit.
No, it’s physically impossible. Even the most advanced material possible couldn’t hold the strain that would be required for Earth. Technically it’s right on the limit, but that’s ignoring that we have an atmosphere that’s going to exert forces on it too. On Luna it might make sense.
The top can be anywhere. It would just require adding force to it at/after release. That’s trivial. We already know how to make rockets, or it could be something that pushes or throws it. Compared to building a space elevator, speeding something up is easy.
No, it’s not physically impossible. For an explanation see my previous comment.
I find it funny that you started this conversation by telling me that I’ve “got space elevators wrong” and then proceeded to spout strange and verifiably false nonsense like this on multiple different points.