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John Tyndall 08/02/1820-12/04/1893
Alpine Mountaineering and Glaciology - 1856
John Tyndall visited the Alps in 1856 for scientific purposes. It was then where he became a pioneering mountain climber. He visited the Alps every summer after that. He studied glacier motion. -
John Tyndall 08/02/1820-12/04/1893
Radiant Heat - 1859
"He was the first to correctly measure the relative infrared absorptive powers of the gases nitrogen, oxygen, water vapour, carbon dioxide, ozone, methane, and other gases and vapours. He concluded that water vapour is the strongest absorber of radiant heat in the atmosphere and is the principal gas controlling air temperature." -
John Tyndall 08/02/1820-12/04/1893
Tyndall Effect - Late 1860s
"Tyndall began to experiment with light, shining beams through various gases and liquids and recording the results. He used this simple glass tube to simulate the sky, with a white light at one end to represent the sun. He discovered that when he gradually filled the tube with smoke the beam of light appeared to be blue from the side but red from the far end."
https://www.youtube.com/watch?v=qxlR7ZdgV7w -
John Tyndall 08/02/1820-12/04/1893
Tyndallization - 1876
John Tyndall discovered that the purification of air could result in meat-broths when properly sterilized could last "fresh" for months at a time. The following year he could not successfully continue proving his experiments and some broths began to rot. It was through these experiments he discovered "germ theory" referencing a collegue, Ferdinand Cohn. It was this discovery that led him eradicate bacterial spores and the method known as Tyndallization.
