Einstein’s famous Equation is certainly one of the most brilliant and beautiful scientific discoveries—but it’s also one of the most disturbing. The power explained by the equation really rests in the c², or the speed of light (186,282 miles per second) times itself, which equals 34,700,983,524. When that’s your multiplier, you don’t need much mass—a smidgen of plutonium is plenty—to create enough energy to destroy a city.
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