What is the essence of Galvani’s discovery?

Galvann discovered that electricity was eliminated by contraction of the frog’s leg muscle. Galvann also discovered that the frog muscle contracted when the muscle and nerve were connected by dissimilar metal conductors.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.