• Everyone knows how Consciousness works. • Many people know how the Brain works. • Nobody really knows what a nerve impulse is! • In this book, we explore the evolution of human ideas and misconceptions about the nature of a nerve impulse. •Only scientific facts, no esotericism. • You will learn where electricity comes from in the nervous system, about the interaction of neurons, about neural networks and about artificial intelligence. • For the first time in Russian, modern unexpected hypotheses of the essence of a nerve impulse.