He has worked for many years developing and
testing gravity powered devices and he has been very
successful in his work. His various designs is based on
the principle of having weights attached to a wheel and
arranging for those weights to be offset outwards when
falling and offset inwards when rising. Because of the
different lever arms involved, that gives a force
imbalance which causes the wheel to rotate continuously
and if the weights are of a considerable size, then the
rotation is powerful and can be used to generate electrical
energy.