e=mc2

Albert Einstein is perhaps most famous for introducing the world to the equation E=mc2.

But aside from a black papier-mâché jack titled “E=MC2” on which she lingers at the end, Menken never lets you see any Noguchi work in full.

The answer is given by Albert Einstein's famous equation E=mc2, first published in a 1905 paper that introduced his "theory of special relativity."

In Einstein's words, the E=mc2 equation shows "that very small amounts of mass may be converted into very large amounts of energy."

For instance, most time travel models require negative mass—and hence negative energy because, as Albert Einstein revealed when he discovered E = mc2, mass and energy are one and the same.