Physics- Mechanical Equivalent of Heat by Searle's Apparatus

Hi reader, I created this video with animation, only to give a transparent look at the rotating parts of Searle's Apparatus. You rotate an Outer CONE which is rubbing against an Inner CUP, and you generate "heat", more correctly "Thermal Energy" in the water put in the Cup. Both Mechanical Rotation Energy and Thermal Energy are different forms of Energy, but they are not reversible. You can't heat the water and expect the Outer Cone to start rotating. Finally , there is a quick explanation of how scientist Searle derived the equation to find Mechanical Equivalent of Heat . In real life, the cone and cup would be of copper material to pass on the thermal energy to the water since, the temperature measured is for the water in the CUP. To see many more videos, please login at www.physicsmodels.in , a new and exciting site to learn physics for all . Thank you.