Examples from the Web for koch
No matter how much money the Koch brothers or Tom Steyer spend, they cannot convince a lottery to choose one person over another.Is It Time to Take a Chance on Random Representatives?|Michael Schulson|November 8, 2014|DAILY BEAST
If Republicans win big, Democrats will hang their heads and cuss the Koch brothers.
Like the Koch Brothers, it seemed Rastetter wanted to be a GOP kingmaker.
But the school has other attributes that may have appealed to the Koch group.At This Creepy Libertarian Charter School, Kids Must Swear ‘to Be Obedient to Those in Authority’|ProPublica|October 15, 2014|DAILY BEAST
At the January Koch conference in the Palm Springs area, Abboud led a discussion that drew many wealthy donors, say two attendees.Casino Tycoon Sheldon Adelson Takes $100 Million Gamble on GOP Senate|Peter Stone|September 3, 2014|DAILY BEAST
An early case of tuberculosis, without Koch's bacillus in the sputa, was cured.Turkish Prisoners in Egypt|Various
In addition I beg you to present our compliments to our friend Koch.The Life of Ludwig van Beethoven, Volume I (of 3)|Alexander Wheelock Thayer
In 1884, by the way, Koch made another epoch-making and beneficent discovery, and isolated the bacillus of cholera.Invention|Bradley A. Fiske
Why should birds enjoy the immunity established by the experiments of Koch?Louis Pasteur|Ren Vallery-Radot
Koch, however, continued to watch the filaments, and after a time noticed little dots appearing within them.Fragments of science, V. 1-2|John Tyndall
British Dictionary definitions for koch
Medicine definitions for koch
Science definitions for koch
Robert Koch is deservedly famous for his discovery of the bacteria that cause tuberculosis and many other diseases, and his illumination of the life cycle of the anthrax bacillus in 1876 showed how a particular microorganism caused a particular disease, definitively establishing the modern germ theory of disease. What Koch is less well-known for is his equally important and pioneering work in laboratory methods, especially in culture techniques and microscopy. Some attempts before Koch had already been made to grow microorganisms outside the body, but it was he who, through ingenious experiments, devised cheap, reliable, and duplicable techniques for growing pure cultures of single species of bacteria in the lab. Except for the lid, he invented the petri dish and a jellylike culture medium for it (the lid was later added by one of his assistants, Julius Petri). For years a passionate amateur photographer, Koch soon applied that interest to his lab work: he devised methods for preparing and culturing bacteria in thin layers on glass slides so that they could be photographed under a microscope. He invented ways of staining bacterial cultures to make poorly visible bacteria stand out under magnification. All of these innovations allowed the life cycles of bacteria to be studied and documented for the first time-an advance that bore its first and perhaps most dramatic fruit in Koch's demonstration of the life cycle of the anthrax bacillus, which was accompanied by dramatic photographs that took the scientific world by storm.