The Dean’s List with Host Dean Bowen – He set out to prove his theory by flying a kite in a thunderstorm with a key tied to the string. When he brought his knuckle near the key, he observed a spark leaping out. Franklin then touched the key to a Leyden jar, which charged it, thereby proving his theory. That summer, Franklin convinced the citizens of Philadelphia to build lightning rods on their homes as a means of...