8 Responses. > 1  the Moon takes an elliptical path around the Earth. The planets make nearly elliptical orbits around the Sun, close enough for reasonable approximations, but the Moonâs Orbit around the Earth is sufficiently influenced by the Sun that it follows a path detectably different from an ellipse.
Quick Answer. In 1896, French scientist Antoine Henri Becquerel discovered radioactivity which was an early contribution to atomic theory. He discovered this phenomenon while experimenting with uranium and a photographic plate. Continue Reading.
Edmund Becquerel was thought to be the first scientist to discover light could be used as energy. Sometime, between 1860-1881 a man named Auguste Mouchout designed a motor that ran on solar energy By the late 1800âs many scientist had made different solar-powered creation.