Search results
Results from the WOW.Com Content Network
John Tyndall (/ ˈ t ɪ n d əl /; 2 August 1820 – 4 December 1893) was an Irish physicist.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 as the greenhouse effect in 1859.
In the 1860s, Tyndall did a number of experiments with light, shining beams through various gases and liquids and recording the results. In doing so, Tyndall discovered that when gradually filling the tube with smoke and then shining a beam of light through it, the beam appeared to be blue from the sides of the tube but red from the far end. [3]
1859: Proof of the greenhouse effect discovered by John Tyndall. [30] 1864: Capnography invented by John Tyndall. [31] 1865: The first Transatlantic telegraph cable pioneered by William Thomson on Valentia Island. [32] 1866: Standard drop method of hanging discovered by Samuel Haughton. [33] 1871: Fireman's respirator invented by John Tyndall. [34]
The man who explained the greenhouse effect was accidentally killed by his wife.
John Tyndall was the first to measure the infrared absorption and emission of various gases and vapors. From 1859 onwards, he showed that the effect was due to a very small proportion of the atmosphere, with the main gases having no effect, and was largely due to water vapor, though small percentages of hydrocarbons and carbon dioxide had a ...
In 1875 John Tyndall demonstrated to the Royal Society the antibacterial action of the Penicillium fungus. [ 7 ] In 1876, German biologist Robert Koch discovered that a bacterium ( Bacillus anthracis ) was the causative pathogen of anthrax , which became the first demonstration that a specific bacterium caused a specific disease and the first ...
Third and finally, Louis Pasteur and John Tyndall experimentally disproved the (now superseded) theory of spontaneous generation, which suggested that life was constantly evolving from non-living matter and did not have a common ancestor, as suggested by Darwin's theory of evolution.
Tyndall's bar breaker is a physical demonstration experiment to demonstrate the forces created by thermal expansion and shrinkage. It was demonstrated 1867 by the Irish scientist John Tyndall in his Christmas lectures for a "juvenile auditory".