Vehicle horn England, developed a standard electric car horn in 1910. Car horns are usually electric, driven by a flat circular steel diaphragm that has an electromagnet acting on it in one direction and a spring pulling in the opposite direction. The diaphragm is attached to contact points that repeatedly interrupt the current to that electromagnet causing the diaphragm to spring back the other way, which complete the circuit again. This arrangement opens and closes the circuit hundreds of times per second which creates a loud noise like a buzzer or electric bell, which sound enters a horn to be amplified. There
George A. Loud George A. Loud Colonel George Alvin Loud (June 18, 1852 – November 13, 1925) was a politician from the U.S. state of Michigan. Loud was born in Bainbridge Township, Geauga County, Ohio, and moved with his parents (Henry M. Loud and Vilitta Kile) to Massachusetts in 1856 and then to Au Sable, Michigan, in 1866. He attended the English High School in Boston, and Professor Patterson's School at Detroit, He graduated from Ann Arbor High School (now Pioneer High School) in 1869. He was vice president and general manager of the Au Sable and Northwestern Railroad. For four years he