## This video explains the true Einstein equation, which relates energy and inertia of corps

**Einstein equation E = mc²** may be the most famous equation in the world… but what you might not know is that, it isn’t the whole story. It just describes objects that have mass and that aren’t moving.

It was enunciated by **Albert Einstein** in 1905 in the field of limited relativity, although it does not appear in the first article on June theory, but in a second of September entitled “The inertia of a body depends on its energy content?”

**00:06**- The equation for the energy of a moving, massless particle (such as a photon) is E=pc.
**00:43** - An object’s velocity is equal to the speed of light times the ratio of the object’s momentum to energy.

Credits: MinutePhysics