English: This is my cam follower prototype for clean energy cheaper than coal. Cam is used to open and close valve of internal combustion engine. I am going to show you another use. In my cam follower system,

1. Follower is off set. 2. Force is applied from follower to cam. Since the follower is off set this force help cam to rotate. 3. We use energy(Input energy) to move follower and get energy(output energy) on cam.

4.Follower move down less and help cam to rotate 6 times length of follower displacement at 70 % force. So output energy is 3 times of input energy. You can find research description and prototype video at http://mechanicalresearch.info/