Forget What Your Teacher Said: Mass And Weight Are The Same

At high school, your physics teacher probably drummed it into you that mass and weight are completely different things -- but actually, they were wrong all along. In this video, Professor Mike Merrifield from the University of Nottingham -- along with Albert Einstein and Isaac Newton -- explains the equivalence principle. It says that mass and weight are, really, the same thing.

Maybe you should go tell your old teacher. [Sixty Symbols]

Trending Stories Right Now