Columbia Encyclopedia

Search results

500 results found

Prout, William

(Encyclopedia)Prout, William, 1785–1850, English chemist and physician. Prout's hypothesis, advanced in 1815–16, suggested that atomic weights of elements are multiples of that of hydrogen and that elements are...

Pelletier, Pierre Joseph

(Encyclopedia)Pelletier, Pierre Joseph pyĕr zhôzĕfˈ pĕlətyāˈ [key], 1788–1842, French chemist. With J. B. Caventou, he was cofounder of alkaloid chemistry and codiscoverer of quinine, strychnine, brucine,...

cyanide

(Encyclopedia)cyanide sīˈənīdˌ [key], chemical compound containing the cyano group, –CN. Cyanides are salts or esters of hydrogen cyanide (hydrocyanic acid, HCN) formed by replacing the hydrogen with a metal...

Gay-Lussac, Joseph Louis

(Encyclopedia)Gay-Lussac, Joseph Louis zhôzĕfˈ lwē gā-lüsäkˈ [key], 1778–1850, French chemist and physicist. He was professor in Paris at the Sorbonne, at the Polytechnic School, and at the Jardin des Pla...

Molina, Mario

(Encyclopedia)Molina, Mario (Mario José Molina-Pasquel y Henríquez), 1943–2020, Mexican chemist, Ph.D. Univ. of California, Berkeley, 1972. Molina was a professor at the Univ. of California, Irvine from 1975 to...

Lawrence Berkeley National Laboratory

(Encyclopedia)Lawrence Berkeley National Laboratory and Lawrence Livermore National Laboratory, scientific research centers run by the Univ. of California, located in Berkeley, Calif., and Livermore, Calif., respec...

Ekimov, Alexei

(Encyclopedia)Alexei Ekimov, 1945– , b. Leningrad, USSR, Russian physicist, studied at Leningrad State University and Ioffe Institute of the Russian Academy of Scie...

Fischer, Hans

(Encyclopedia)Fischer, Hans, 1881–1945, German organic chemist, Ph.D. Univ. of Marburg, 1904; M.D. Univ. of Munich, 1908. Fischer was a professor at the Univ. of Innsbruck from 1916 to 1918 and at the Univ. of Vi...

I

(Encyclopedia)I, 9th letter of the alphabet. This vowel can be pronounced with a short vowel sound, as the ĭ in sit, or with a long vowel sound, like the ī in ride. The Greek correspondent is iota. J is a formal ...

Onsager, Lars

(Encyclopedia)Onsager, Lars, 1903–76, American physical chemist, b. Oslo, Ph.D. Yale, 1935. Onsager taught at Brown Univ. from 1928 to 1933 and was on the faculty at Yale from 1933 until his retirement in 1972. H...

Browse by Subject