The Russian physics school began to develop later and Monossov who proposed the law of conservation of matter before the law of conservation of energy. During the period of electrodynamics Vasily Petrov discovered the electric arc effect in 1802 and Heinrich Lenz discovered important law that bears his name. Discovered Umov Nikolai, a fundamental concept Umov carriers and was the first scientist to demonstrate the relationship between mass and energy suggests KMC formula E = ^ 2 and 1873.Alexander Popov was one of the inventors of the radio.
