Who Invented Bifocals, A Stove And The Armonica?
Posted by admin – 14/07/10 at 08:07 am Benjamin Franklin was more than one of America’s most beloved Founding Fathers. He was also the first major American inventor. In 1748 at the age of 42, Franklin retired from his career as a printer to turn his attention full time to studying biology and physics, pursuing his curiosities about the world. Franklin is most famous for his experiments with electricity. Franklin was not the discoverer of electricity but rather he spent time learning about its properties. He was aware of the dangers of electricity and lighting. He used the concept of electric ground to investigate electricity and lighting. This concept led to the invention of the lighting rod. A metal rod was attached to the high point of a building. A metal cable attached to this rod ran down the side of the building and into the ground. When lighting struck the rod, the electricity ran down the cable and into the ground, preventing damage to the building. Franklin was curious about li
