Hans Christian Ørsted:"a Danish physicist and chemist who is most widely known for observing that electric currents can induce magnetic fields, an important aspect of electromagnetism. He shaped post-Kantian philosophy and advances in science throughout the late 19th century."
If I weren't at home and about to jump in the shower I would pay tribute to him buy writing a much better post then this. Anyway, go check it out! Happy Birthday Hans!!