4 ms·Hah. Never thought about harvesting the gravitational potential energy of garbage before.by TheSoftwareGuy 9y agoHah. Never thought about harvesting the gravitational potential energy of garbage before.epistasis 9y agoThese are probably more commonly used in mining than in landfills.hwillis 9y agoDump(er) truck, not garbage truck. This one is transporting rock from a mine to a cement plant. It does not transport garbage. The mine is just on a mountain. Again, trash is not involved.