Hello,
Overunity is being proven mathematically as well as technically.
See the video.
https://youtu.be/isfw6JMfUbwSee the sketch as per my video.
The ball weight is 400 gram
Distance from fulcrum of tube 0.35 meter
The ball is resting 1 meter
Now use pythagoras equation to calculate exact distance of ball.
It will be 1.060 m.
Now use torque formula
Torque= rf=rmg
So torque of ball is 0.400*1.060=0.424
So counterweight will be only 424 gram to Balanced the seesaw.
But I took 500 gram to take advantage of heavy counterweight. So seesaw will be tilted .
Now if I am releasing the ball from 1 meter height and it will travelled 2 meter.
Calculate bthe kinetic energy.
Mgh=0.400*10*2=8 Joule
And counterweight will be rotate more than 180 degree.
The reason is that the ball will have to lift up only 24 gram weight
As counterweight is 424 gram so the will do two work at first it will work to balance the seesaw then the energy will work to lift up only 24 gram weight.
This is the main reason of overunity in it.