Hi guys, Welcome to the Advanced Video Search Engine, and you are watching The Heisenberg Uncertainty Principle Part 2: Energy/Time and Quantum Fluctuation. That video is uploaded by Professor Dave Explains at 2017-05-08T08:33:19-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [_DXHrp6-LZI]