The United States Navy, Albert Michelson, and the ‘aether’

One day in January 1879 a 25-year old physics instructor at the United States Naval Academy at Annapolis began experiments with a curious apparatus set up along the north sea-wall of the academy grounds. This consisted of a rapidly spinning mirror, set up some 2000 feet away from an observing post inside a darkened building. [ ] The post The United States Navy, Albert Michelson, and the ‘aether’…