Columbia Encyclopedia

Search results

411 results found

Jesuit Relations

(Encyclopedia)Jesuit Relations, annual reports and narratives written by French Jesuit missionaries at their stations in New France (America) between 1632 and 1673. They are invaluable as historical sources for Fre...

Erlenmeyer, Richard A. C. E.

(Encyclopedia)Erlenmeyer, Richard A. C. E. ĕrˈlənmīˌər [key], 1825–1909, German chemist. He studied at Giessen under Justus von Liebig and at Heidelberg under Friedrich Kekulé, both German chemists. Erlenm...

Lenard, Philipp Eduard Anton

(Encyclopedia)Lenard, Philipp Eduard Anton fēˈlĭp āˈdo͞oärt änˈtōn lāˈnärt [key], 1862–1947, German physicist, b. Bratislava. After serving as professor at the universities of Kiel (1898–1907) and ...

Thomson, Sir George Paget

(Encyclopedia)Thomson, Sir George Paget, 1892–1975, English physicist; son of Sir Joseph John Thomson. He was professor of natural philosophy at the Univ. of Aberdeen (1922–30) and from 1930 to 1952 was profess...

ribose

(Encyclopedia)ribose rīˈbōs [key], monosaccharide carbohydrate of universal distribution in living tissue, found in ribonucleic acid (RNA; see nucleic acid), free nucleotides, and various coenzymes. Its close re...

Schrock, Richard Royce

(Encyclopedia)Schrock, Richard Royce, 1945–, American chemist, b. Berne, Ind., Ph.D Harvard, 1971. After working for three years with the Dupont Company, he became (1972) a professor at the Massachusetts Institut...

tautomer

(Encyclopedia)tautomer tôˈtəmər [key], one of two or more structural isomers that exist in equilibrium and are readily converted from one isomeric form to another. Of the various types of tautomerism that are p...

Hahn, Otto

(Encyclopedia)Hahn, Otto ôˈtō hän [key], 1879–1968, German chemist and physicist. His important contributions in the field of radioactivity include the discovery of several radioactive substances, the develop...

nucleus, in physics

(Encyclopedia)nucleus, in physics, the extremely dense central core of an atom. Following the discovery of radioactivity by A. H. Becquerel in 1896, Ernest Rutherford identified two types of radiation given off b...

Nodier, Charles

(Encyclopedia)Nodier, Charles shärl nôdyāˈ [key], 1780–1844, French novelist and poet. From 1824 he was librarian of the Bibliothèque de l'Arsenal in Paris. His salon was the nucleus of the beginning romanti...