3 ms·
They are right in the sense that you can count on the earth to pull your stuff down for free, they just forgot they have to put it back up themselves.
by vasco 5y ago
They are right in the sense that you can count on the earth to pull your stuff down for free, they just forgot they have to put it back up themselves.
- drran 5y agoEarth rotation and Moon orbiting can do a massive amount of work (see tide waves), but energy density is very low.