... how the earth moves with respect to the back-ground of distant stars, the speed of light remains the same.This mystery of the speed of light and the existence, or nonexist-ence, of the ether ... on the throne. She hadbecome known as the Grandmother of Europe,” since her grandchil-dren were now part of the European monarchy. Indeed all of the Euro-pean kings and queens, as well as the ... of scientists, and it ex-plained everything from the orbits of the planets to the times of the tides, the fall of an apple, and the path of a projectile. What’s more,during the preceding decades...