Unsolved Mysteries: The Quantum of Action

Unsolved Mysteries: The Quantum of Action

h=6.626*10^(-34) Nms… Originally discovered by Max Planck, it was Einstein who revealed its revolutionary meaning with the famous E=hf ligth quanta formula. Even more importantly, Niels Bohr recognized its property as angular momentum of an electron orbiting the atomic nucleus.

Despite all these insights, no reason is known for the very existence of h…