Who discovered that lightning is a form of electricity?

Have you ever watched lightning during a storm? Have you ever wondered about its power? Have you ever wanted to know more about it? Ben Franklin did. His interest in electricity was not just limited to lightning. He received an electricity tube from his friend Peter Collinson and began to play around with it, performing experiments. However, it is Ben's interest in lightning that we best remember. Ben suspected that lightning was an electrical current in nature, and he wanted to see if he was right. One way to test his idea would be to see if the lightning would pass through metal. He decided to use a metal key and looked around for a way to get the key up near the lightning. As you probably already know, he used a child's toy, a kite, to prove that lightning is really a stream of electrified air, known today as plasma. His famous stormy kite flight in June of 1752 led him to develop many of the terms that we still use today when we talk about electricity: battery, conductor, condenser, charge, discharge, uncharged, negative, minus, plus, electric shock, and electrician. Ben understood that lightning was very powerful, and he also knew that it was dangerous. That's why he also figured out a way to protect people, buildings, and ships from it, the lightning rod.