Mathematician:John Hadley/1

Mathematician
English mathematician who invented the sextant, independently of.

Constructed the first practical working reflecting telescope.

Nationality
English

History

 * Born: 16 April 1682 in Bloomsbury, London
 * Died: 14 February 1744 in East Barnet, Hertfordshire

Inventions

 * Sextant

Publications

 * 1731: Description of a new instrument for taking angles
 * 1734: A description of a new instrument for taking the latitude or other altitude at sea