Template:Selected anniversaries/May 8: Difference between revisions

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||1834: Loftus Perkins born ... engineer, particularly involved in developing the practical technologies of central heating and refrigeration. Pic.
||1834: Loftus Perkins born ... engineer, particularly involved in developing the practical technologies of central heating and refrigeration. Pic.
||1842: Emil Christian Hansen born ... mycologist who revolutionized beer-making through development of new ways to culture yeast. He financed his education by writing novels. Though he never reached an M.Sc., in 1876, he received a gold medal for an essay on fungi. In 1879, he became superintendent of the Carlsberg breweries. In 1883, he successfully developed a cultivated yeast that revolutionized beer-making around the world, because Hansen by refusing to patent his method made it freely available to other brewers. He also proved there are different species of yeast. Hansen separated two species: Saccaromyces cerevisae, an over-yeast (floating on the surface of the fermenting beer) and S. carlsbergensis*, an under-yeast (laying on the bottom of the liquid). Pic.


||1859: Johan Jensen born ... mathematician and engineer. Pic.
||1859: Johan Jensen born ... mathematician and engineer. Pic.

Revision as of 09:51, 26 August 2018