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
Horn (video game) those looking for a mobile game that can live up to its console contemporaries, Horn is a must-have. " Appspy said " Horn brings a rich fantasy world to life, combining elements of classic and modern adventure titles to create something all its own; an incredibly engaging title and a definite must have. " Gamezebo wrote " I don't want to sound too overdramatic, but if I were looking to sum up Horn in two words, it would probably sound something like 'mobile masterpiece.' " SlideToPlay said " Horn is an enormous, beautiful, carefully-constructed game that shows off what iOS