The so called "avalance" machine, why it does not work?

[neazoi]

Hi, I do not know if this is the right place to ask, but recently I found this machine:

https://peswiki.com/index.php/OS:_Chain_Gravity_Machine
https://www.besslerwheel.com/murilo/index.html
https://www.lhup.edu/~dsimanek/museum/annex.htm

I have struggled on it and I cannot understand why it does not work?

 

[FvM]

I appreciate your link to the "Museum of Unworkable Devices". I believe it has sufficient explanation why over-unity devices don't work.