Background Information Einstein worked out his theories mostly in the laboratory of his mind he used the most advanced kinds of mathematics to describe his ideas these theories were unheard of and so complicated that, very few scientists could understand them at first. As the years passed, experiments, observations, and discoveries in many fields of science proved einstein ' s work to be correct. The theories not only explained what was already known, but they also allowed scientists to predict what would happen.Background Information Einstein worked out his theories mostly in the laboratory of his mind. He used the most advanced kinds of mathematics to describe his ideas. These theories were unheard of and so complicated that, very few scientists could understand them at first. As the years passed, experiments, observations, and discoveries in many fields of science proved Einstein's work to be correct. The theories not only explained what was already known, but they also allowed scientists to predict what would happen