Tyndall, John

Tyndall, John

John Tyndall was born on August 2, 1820 in Leighlinbridge, County Carlow, Ireland.

His scientific fame arose in the 1850s from his study of diamagnetism. Later he made discoveries in the realms of infrared radiation and the physical properties of air, proving the connection between atmospheric CO2 and what is now known as the greenhouse effect in 1859.

John Tyndall is remembered as the man who first explained why the sky is blue. This discovery, known as the Tyndall effect, proves the sky’s blue colour results from the scattering of the Sun’s rays by molecules in the atmosphere.

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