5 Physics Equations Everyone Should Know
Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...
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What Einstein's famous equation E=mc^2 actually means
An curved arrow pointing right. E=mc 2 is one of the most famous equations in history. But what does it mean, exactly? David Bodanis, the author of "Einstein's Greatest Mistake," breaks down the ...