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John Tyndall (/ ˈ t ɪ n d əl /; 2 August 1820 – 4 December 1893) was an Irish physicist and chemist. 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 CO 2 and what is now known ...
This is known as the Tyndall Effect. When sunlight passes through the atmosphere the light is scattered by small particles suspended in the atmosphere. The blue light that we see is known as Tyndall Blue. [3] John Tyndall developed a practical demonstration of the propagation of light though a tube of water via multiple internal reflections.
Irish physicist John Tyndall, c. 1885. Later, in 1863, a new rift began to emerge within the scientific community over race theory. Debate was stirred up when the Anthropological Society of London, which rejected Darwinian theory, claimed that slavery was defensible based on the theory of evolution proposed by Darwin.
The investigations of the Irish physician John Tyndall, a correspondent of Pasteur and an admirer of his work, were decisive in disproving spontaneous generation. All the same, Tyndall encountered difficulties in dealing with microbial spores, which were not well understood in his day.
In October 1999 Nick Griffin, supported by Tony Lecomber, stood against Tyndall for leadership of the BNP. John Tyndall received just 411 votes (27.5% of the total), while Griffin received 1,082 (72.5%). After Griffin won, he began modernising the party's image, though the crucial policy change from compulsory to voluntary repatriation which ...
Where "Anglo-Irish" is not accepted, such as in the bio of John Tyndall, then the nationality is removed after a lot of back and forth posturing. I would have thought that nationality reflects place of birth, therefore John Tyndall was Irish, and that the further bio details can refer to his ancestry and ethnicity, if that is relevant.
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1871: Fireman's respirator invented by John Tyndall. [34] 1877: Brennan torpedo invented by Louis Brennan. [35] 1879: The rules of Hurling first standardised with the foundation of the Irish Hurling Union. [36] 1881: Stoney units discovered by George Johnstone Stoney. [37] 1883: Method of producing electromagnetic waves discovered by George ...