Oersted, Hans Christian (1777-1851), a Danish physicist and chemist. His investigations laid the foundation for the science of electromagnetism. In 1820 Oersted observed that a magnetic needle could be deflected by an electric current. This led him to conclude that there was a fundamental relationship between electricity and magnetism. In 1825 he was the first to isolate aluminum (in an impure form). He taught at the University of Copenhagen, 1806-29. He became the first director of the Polytekniske Laereanstalt (the Danish technical institute) in 1829.
He may have been born in Brooklyn, but Carl Sagan was gunning for the stars as soon as he arrived in this world. Get to know the scientist whose infectious delight in the universe still holds us spellbound.
Albert Einstein was a pretty smart guy. When you look up the word "genius" in the dictionary, so the saying goes, it's a pretty safe bet you'll see Einstein's mug. Think you’re smart enough to take on a quiz about the famed thinker?