| |||||||||
Osborne Reynolds (23 August, 1842 – 21 February, 1912) was an Irish engineer. He was born in Belfast, Ireland and died in Watchet in Somerset, England. He graduated from Cambridge University in 1867 after studying mathematics. In 1868 he became a professor of engineering in Manchester, and was only the second to hold this role in England. He retired in 1905.
He is the eponym of the Reynolds number which is the ratio of inertial forces to the viscous forces. In 1877 he was elected a fellow of the Royal Society, and in 1888 he won the Royal Medal.
A crater on Mars is named in his honor.