Template:Selected anniversaries/September 30: Difference between revisions

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||1775: Robert Adrain born ... mathematician, whose career was spent in the USA. He was considered one of the most brilliant mathematical minds of the time in America, during a period when few academics conducted original research. He is chiefly remembered for his formulation of the method of least squares. Pic.
||1775: Robert Adrain born ... mathematician, whose career was spent in the USA. He was considered one of the most brilliant mathematical minds of the time in America, during a period when few academics conducted original research. He is chiefly remembered for his formulation of the method of least squares. Pic.


||1813: John Rae born ... physician and arctic explorer ... surgeon who explored parts of northern Canada, found the final portion of the Northwest Passage (Rae Strait) and reported the fate of Sir John Franklin's lost expedition. In 1846–47 he explored the Gulf of Boothia northwest of Hudson Bay. In 1848–51 he explored the Arctic coast near Victoria Island. In 1854 he went from Boothia to the Arctic coast and learned the fate of Franklin. He was noted for physical stamina, skill at hunting and boat handling, use of native methods and the ability to travel long distances with little equipment while living off the land.wa Pic.
||1813: John Rae born ... physician and arctic explorer ... surgeon who explored parts of northern Canada, found the final portion of the Northwest Passage (Rae Strait) and reported the fate of Sir John Franklin's lost expedition. In 1846–47 he explored the Gulf of Boothia northwest of Hudson Bay. In 1848–51 he explored the Arctic coast near Victoria Island. In 1854 he went from Boothia to the Arctic coast and learned the fate of Franklin. He was noted for physical stamina, skill at hunting and boat handling, use of native methods and the ability to travel long distances with little equipment while living off the land. Pic.


||1870: Jean Baptiste Perrin born ... physicist and chemist, Nobel Prize laureate ... for his studies of the Brownian motion of minute particles suspended in liquids, verified Albert Einstein’s explanation of this phenomenon and thereby confirmed the atomic nature of matter (sedimentation equilibrium). Pic.
||1870: Jean Baptiste Perrin born ... physicist and chemist, Nobel Prize laureate ... for his studies of the Brownian motion of minute particles suspended in liquids, verified Albert Einstein’s explanation of this phenomenon and thereby confirmed the atomic nature of matter (sedimentation equilibrium). Pic.

Revision as of 17:53, 2 March 2019