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
Alarm Will Sound John Adams, John Luther Adams, Tyondai Braxton, David Lang, Anthony Gatto, Cenk Ergün, Aaron Jay Kernis, Michael Gordon, Scott Johnson, Augusta Read Thomas, Stefan Freund, John Orfe, Caleb Burhans, Dennis Desantis and Wolfgang Rihm. From 2004 to 2007, they were musical artists-in-residence at Dickinson College. ASCAP recognized Alarm Will Sound with its Concert Music Award in 2006 for "the virtuosity, passion and commitment with which they perform and champion the repertory for the 21st century." Alarm Will Sound's 2005 album "Acoustica" (released July 2005 on Cantaloupe Music) features acoustic arrangements of music by Aphex Twin. Its first two recordings were