Where is Opie? This is an effect of the Universal Cat Law, which was discovered by me after studying the work of Albert Einstein and Werner Heisenberg. In 1905 Albert Einstein published his famous equation: E = mc2. It was derived from experiments with his two cats named Proton and Electron conducted in 1904. In the equation, E = the energy of the cat; m = the mass of the cat; and c = the speed of the cat.