Hooke, Robert, natural philosopher, born at Freshwater, Isle of Wight; was associated with Boyle in the construction of the air-pump, and in 1665 became professor of Geometry in Gresham College, London; was a man of remarkable inventiveness, and quick to deduce natural laws from meagre premises; thus he in some important points anticipated Newton's theory of gravitation, and foresaw the application of steam to machinery; he discovered amongst other things the balance-spring of watches, the anchor-escapement of clocks, the simplest theory of the arch, and made important improvements on the telescope, microscope, and quadrant (1635‒1703).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Hook, Theodore * Hooker, Richard