Donald L. Fennimore

A lush and in-depth celebration of the clocks of David Rittenhouse, one of eighteenth-century America’s greatest scientists and engineers David Rittenhouse: Philosopher-Mechanick of Colonial Philadelphia and His Famous Clocks brings a completely new focus on the life and works of the American astronomer, mathematician, surveyor, and inventor David Rittenhouse (1732–96). A brilliant autodidact who would become the first director of...