In fact, this was accepted as the most accurate measurement of the speed of light for the next forty years, at which point Michelson measured it again. The next lecture is on the Michelson-Morley experiment to detect the aether.
The United States declared war on Germany on April 6, 1917. There was two major reasons. First off, the German U-Boats sank 3 passenger ships carrying US civilians and citizens.
British declaration of war in WW2 In â¦ WW2 Britain declared war on Germany on 3 September 1939. The British Prime Minister, Neville Chamberlain, declared war on Germany on September 3, 1939, two days after the Nazi Germans invaded and attacked Poland. Obviously, he did so with the backing of Parliament.