FTP, identify this inventor and scientist whose observation of the immense amount of heat created by the boring of cannon led to his theory that heat is a mode of vibratory motion.
Among this man's inventions are the first percolator, a shadow photometer, and an oil lamp, and he introduced the concept of the standard candle.  Born Benjamin Thompson, he founded the Royal Institution in London in 1799, and married Lavoisier's widow three years later.  FTP, identify this inventor and scientist whose observation of the immense amount of heat created by the boring of cannon led to his theory that heat is a mode of vibratory motion.
Among this man's inventions are the first percolator, a shadow photometer, and an oil lamp, and he introduced the concept of the standard candle.  
Count Rumford (accept early Benjamin Thompson)