Fog Horns By Basuri Automotive

A lighthouse fog horn emits a low, booming yawn over the water, giving vessels of all shapes and sizes safe passage through low visibility. Some say the fog horn is dying. Modern maritime navigation technologies have all but washed away the need for coastal warning horns.

A fog horn is made out of liquid nitrogen, air compressed into a tin or aluminum bottle, with a plastic horn used to channel the sound. Its called a fog horn because when you turn it upside down and press down on the part you use to make it sound, the liquid nitrogen comes out looking like fog.