Evadman
Administrator Emeritus<br>Elite Member
- Feb 18, 2001
- 30,990
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The amount of energy needed to lift it out is a lot more than that.
That is something that I didn't address, and it would be a very interesting thought experiment. A transporter/teleporter works by converting mass into energy, transporting energy, and reassembling the energy into mass again in another location.
What that involves is actually a giant change in the potential and kinetic energy that the transported mass contains. When on the surface of the neutron star, the mass has (let us assume the mass is at rest) zero potential and zero kinetic energy. When transported out of the gravity well, a bunch of kinetic energy must be added to the mass (at least enough to put it into orbit around the star) and a bunch of potential energy must be added (equal to the height of the gravity well). That is how we put an object into orbit around the earth, we add enough energy to the mass (velocity change induced though a chemical reaction) to get the mass into orbit.
If we get the energy from dropping mass on the neutron star as you suggested, and we assume a perfect energy transfer system, we need to drop an equal amount of mass onto the star as we are transporting off the star.