Benjamin Franklin is a famous colonial inventor and multitasker who may be best remembered as one of America’s Founding Fathers. But he was also a “natural philosopher” (the term for scientists back in the 1700s), whose experiments led to important discoveries about the nature of electricity—including his famous demonstration that electricity and lightning were one and the same. In a fantastic addition to the much-lauded Giants of Science series, this biography sheds new light on the man who considered science his true calling in life.