Hand Water Pump with a Pendulum | conventional source | Scoop.it

A pendulum that is moved with comparably little effort does much of the work of pumping water here. 


Based on a new principle discovered by Veljko Milkovic, the pump has much greater efficiency in terms of work input vs. output than usual water pumps. 

The pendulum principle could be applied to other situations where mechanical oscillations are needed to do work... 

Via Sepp Hasslberger