Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

The difference or "missing mass" is converted into energy in accordance with Einstein’s equation E=mc². Because c is very large ... thermonuclear fusion is the main area of research in plasma physics.

Energy is a concept that’s central to physics, but because it’s a word ... gravitational potential energy (for which he gives the formula) is converted into other forms. He ends with the ...