English Wikipedia - The Free Encycl...
Download this dictionary
John Hadley
John Hadley
(16 April 1682 – 14 February 1744) was an
English
mathematician, and laid claim to the invention of the
octant
, two years after
Thomas Godfrey
claimed the same.
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License