The Hershey Company, known until April 2005 as the Hershey Foods Corporation and commonly called Hershey's, is an American company and one of the largest chocolate manufacturers in the world. Its headquarters are in Hershey, Pennsylvania, which is also home to Hershey's Chocolate World. It was founded by Milton S. Hershey in 1894 as the Hershey Chocolate Company, a subsidiary of his Lancaster Caramel Company. Hershey's chocolate is available across the United States, due to their wide network of
Sonar definition, a method for detecting and locating objects submerged in water by echolocation. See more.
Another 'electronic eye' was the ship's radar. The radar antenna was mounted high on the mast, about 120-150 feet above the water. Radar sends out a ping and listens for an echo, very similar to how sonar works. The primary difference with radar, is that it can see surface craft (ships and submarines which are sailing on the surface). The radar could see about 12 miles.