12 times more output than input, dual mechanical oscillation system !

[Charlie_V]

Ha i already changed my post, because maybe a double pendulum is a parametric oscillator as well?  I'm not sure haha.  Thanks for those websites, they are good!

[Merg]

It's not the two-stage oscillator, but there is a Milkovic pendulum.

The latest from veljkomilkovic.com:

Superiority of Pendulum Drive - Potential Energy to Kinetic Energy
http://www.youtube.com/watch?v=GuTMYgQDUzs

Veljko Milkovic demonstrates a simple experiment showing the change of potential energy to kinetic energy and proving the energy excess is possible with the pendulum drive.

Experiment Description:

The change of potential energy to kinetic energy of a metal ball in two cases: (1) a metal ball is rolling down on the inclined plane of the pendulum cart from upper edge and crashes at the lower edge of the cart resulting in 11 cm path traveled by the cart (2) The same metal ball is attached to the pendulum rod on the same pendulum cart and it is realized to swing from the same starting point as in the case (1). The path traveled by the cart is now 30 cm, almost 3 times longer; showing and proving in that way the superiority of pendulum drive and confirming the energy excess is possible with the pendulum drive.

[Merg]

just found on YouTube

Milkovic pendulum replication
http://www.youtube.com/watch?v=Ut6FVjKMrBo

[Solomon111]

I think that there is a chance!

[onthecuttingedge2005]

Storing mechanical energy in either X, Y, Z transference directions even with leverage, it is still storing energy, the device just uses the stored energy more efficiently but it will not produce more energy than what is stored. that's why it stops.

it doesn't matter how elaborate you make a stored energy device, it by any other name is still a stored energy device.

Jerry