Vehicle horn horn. Bicycles often have a classic "bulb horn", operated by squeezing a rubber bulb attached to a metal horn. Squeezing the bulb forces air through a steel reed located in the throat of the horn, making it vibrate, producing a single note. The flaring horn matches the acoustic impedance of the reed to the open air, radiating the sound waves efficiently, making the sound louder. Other types of horns used on bicycles include battery-operated horns (sometimes even car horns on 12-volt circuits are incorporated) and small air horns powered by a small can of compressed gas. Oliver Lucas of Birmingham,
What a Horrible Night to Have a Curse What a Horrible Night to Have a Curse What a Horrible Night to Have a Curse is a demo album by the American metal band The Black Dahlia Murder, released independently in May 2001. It is the band's only record to feature Sean Gauvreau on bass. Although The Black Dahlia Murder are considered a melodic death metal band, the style of the demo has also been described as metalcore. Vocalist Trevor Strnad said in a interview that much of the material on the demo is a blatant "rip-off" of the metalcore band Prayer for Cleansing. Its title is derived from