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.
The day after the attack, the United States declared war on Japan and so entered World War II. President Franklin Roosevelt in a speech to Congress stated that the bombing of Pearl Harbor was âa date which will live in infamyâ. Shortly afterwards, Germany also declared war on the United States.