Recent content by Nelourir

Haha, how didn't I think of that?

Does that mean that moving a mass does not necessarily involve some energy being converted (and effectively lost because it is unusable) in the process?

Then how can you effectively move mass by converting it into energy then converting it back?

What happens if the photon goes 'up hill' out of the gravity well but comes down the other planet's well which is, let's say, roughly equal to the source planet? The light blueshifts doesn't it? And how does that explain the apparent gain of energy?

Hello everyone, I'm not sure that this fits in the general physics topic but here it is anyway: If you have a certain mass on a planet that you convert to energy, specifically photons (just because it seems to make sense to me) and 'send' those photons to another planet where they will be...