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John Tyndall (1820-1893)
John Tyndall was a man of science—draftsman, surveyor, physics professor, mathematician, geologist, atmospheric scientist, public lecturer, and mountaineer. Throughout the course of his Irish and later, English life, he was able to express his thoughts in a manner none had seen or heard before(Graham,1999). https://earthobservatory.nasa.gov/features/Tyndall
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A portrait of John Tyndall. (Drawing by Roger Kammerer) -
John Tyndall - Climatology
In January 1859, Tyndall began studying the radiative properties of various gases. Part of his experimentation included the construction of the first ratio spectrophotometer, which he used to measure the absorptive powers of gases such as water vapor, "carbonic acid" (now known as carbon dioxide), ozone, and hydrocarbons(Graham, 1999). https://earthobservatory.nasa.gov/features/Tyndall -
John Tyndall Co- discoverer of climate science 1860’s
Among his most important discoveries were the vast differences in the abilities of "perfectly colorless and invisible gases and vapors" to absorb and transmit radiant heat. He noted that oxygen, nitrogen, and hydrogen are almost transparent to radiant heat while other gases are quite opaque(Graham,1999) https://earthobservatory.nasa.gov/features/Tyndall -
John Tyndall 1870’s
The nature of light appears to have become of significant interest to Tyndall in the late 1860s, and a book he wrote on the topic was released in 1870. In 1869, he discovered the phenomenon that he is most famous for in the world of optics. While carrying out observations of solutions and colloids, Tyndall noted that a beam of light passing through a colloidal suspension is visible. https://micro.magnet.fsu.edu/optics/timeline/people/tyndall.html -
John Tyndall - Contributions to Microbiology
In the 1870s, John Tyndall and his group have observed that bacterial growth can be inhibited by Penicillium species. Tyndall has provided a conclusion that fungi (growing in vegetable infusions or meats) can destroy bacteria after excluding oxygen. Tyndall's other discovery that contributed to microbiology is that he proved that microbes could be present in dust. https://homework.study.com/explanation/identify-the-contributions-to-microbiology-made-by-redi-tyndall-and-pasteur.html