When he heard on television that gravity couldn't be used as a form of energy, Bob Kostoff set out to prove Discovery Channel wrong.

"I said, 'That doesn't make any sense,'" said the Little Britain resident, using dropping a cement brick from a standing height as an example.

If you were to place your hands a few centimeters off of the ground to try to stop it before it hits the ground, you wouldn't be able to because of the energy powering the bricks fall, he said last Friday. With that concept in mind, Kostoff sought to make a 'perpetual motion machine' that could offer a clean, alternative source of power using gravity as 'fuel.'

After about four years of planning and development through trial and error - including about a year-and-a-half creating the designs on paper - Kostoff reached his goal.

He now owns the patent on the technology to prove it.