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
Goal (ice hockey) the role of that sound is expanded to cover every goal scored, and that the horn only sounds once. The horns are different depending on the teams, some even have sound effects such as an alarm or the foghorn of a ship, or both combined, for the Washington Capitals and the Anaheim Ducks. Hockey fans have said that the loudest goal horn belongs to the Anaheim Ducks, who have a very loud fog horn with high bass, or the Philadelphia Flyers, who have a very loud ship’s signaling horn. Also, during the 2006 Stanley Cup playoffs, the Edmonton Oilers added