Maxim gun
Hudson Maxim (February 3, 1853 – May 6, 1927), was a U.S. inventor and chemist who invented a variety of explosives, including smokeless gunpowder, Thomas Edison referred to him as "the most versatile man in America". He was the brother of Hiram Maxim, inventor of the Maxim gun and uncle of Hiram Percy Maxim, inventor of the Maxim Silencer.