Louis+Pasteur

[Born: 1822, Died:1895]
 * __//Louis Pasteur, Discoverer of Pasteurization//__**

Medical science was in the midst of a major revolution. **Louis Pasteur's** recent discovery that germs cause infection and disease created the the new science of microbiology and led the way to the development of vaccines and other preventive measures. media type="custom" key="5386007" width="310" height="290" align="right" Pasteurization, which has almost wiped out tuberculosis spread through milk, is named after Louis Pasteur. This giant of scientific discovery has saved untold likves through his study of the cause and prevention of infectious diseases, especially anthrax, diphteria, colera and rabies.His work on silkworm disease saved the silk industry of France. His work on fowl chlera saved French farmers a fortune and his research on the fermention of wine and beer is said to have saved more money than the reparations claimed by Germany after the Franco Prussian War.

Loius Pasteur was the son of a tanner. He was born in Dole, France, in 1822. After his schooldays, he went to Paris to study under the famous chemist Jean Baptiste Dumas, and his first discovery, made when only twenty-six, was that some chemical crystals rotated light in one direction and others in another. This started the science of sterochemistry and made him famous at one point.

Although crippled by a stroke when only forty-six, he went on working, this time on the prevention of infection in hospitals. Later came his work on anthrax, fowl cholera rabies and diphteria. __Microbiology was now a well esablished science__.

Pasteur's first discoveries were crystallography. While a student, he discovered isomerism by seperating the two crystaline forms of tartic acid and showing their opposite effects on polarized light.He further established that isomerism occurs in many other organic substances, and that natural products occur in only one of the two isomeric forms, thus differing from moleculesproduced by chemical synthesis, which are mixtures of both. Pasteur also recognized that living things exhibit selectivity with regard to their chemical action on isomeric forms, a fact that prepared his mind for studies on fermentation.
 * __Crystallography, His First Discovery__**

__Sources__: http://video.google.com/videoplay?docid=639643886992203974# Pioneers of Science and Discovery: Louis Pastuer and Microbiology American History: Past and Present AP Edition, Eighth Edition -Encyclopedia Americana, 21st Vol.