Free Energy | searching for free energy and discussing free energy

Gravity powered devices => Gravity powered devices => Topic started by: Gabriele on November 01, 2015, 02:17:01 PM

Title: Mongolfiera
Post by: Gabriele on November 01, 2015, 02:17:01 PM
Hello.Why we can't use a heat pump to drive an hot-air baloon to produce energy from buyancy?