Columbia Encyclopedia

Search results

500 results found

homeopathy

(Encyclopedia)homeopathy hōmēŏpˈəthē [key], system of medicine whose fundamental principle is the law of similars—that like is cured by like. It was first given practical application by Samuel Hahnemann of ...

scanning tunneling microscope

(Encyclopedia)scanning tunneling microscope (STM), device for studying and imaging individual atoms on the surfaces of materials. The instrument was invented in the early 1980s by Gerd Binnig and Heinrich Rohrer, w...

separator, cream

(Encyclopedia)separator, cream, dairy machine used to separate fresh whole milk into cream and skim milk. Formerly the separation was made by the gravity method, allowing the cream to rise to the top of a pan and t...

teleportation, in physics

(Encyclopedia)teleportation, in physics, the transfer of key properties from one particle (or group of particles) to another a significant distance apart without a physical connection between the two particles (or ...

stereoscope

(Encyclopedia)stereoscope stĕrˈēəskōpˌ [key], optical instrument that presents to a viewer two slightly differing pictures, one to each eye, to give the effect of depth. In normal vision the two eyes, being a...

Calvo, Carlos

(Encyclopedia)Calvo, Carlos kärˈlōs kälˈvō [key], 1824–1906, Argentine diplomat and historian. He spent much of his life in diplomatic service abroad. He edited a collection of Latin American treaties and d...

Maine, region and former province, France

(Encyclopedia)Maine mĕn [key], region and former province, NW France, S of Normandy and E of Brittany. It now comprises the departments of Mayenne and Sarthe and parts of Loire-et-Cher, Eure-et-Loir, and Orne. Le ...

González de León, Teodoro

(Encyclopedia)González de León, Teodoro, 1926–2016, Mexican architect, b. Mexico City. After studying at the National Autonomous University of Mexico (1942–47), he was a draftsman (1948–49) in Le Corbusier'...

Giacosa, Giuseppe

(Encyclopedia)Giacosa, Giuseppe jo͞ozĕpˈpā jäkôˈzä [key], 1847–1906, Italian dramatic poet. After Una partita a scacchi [a game of chess] (1873) won him his first success, he devoted himself to playwritin...

Getz, Stan

(Encyclopedia)Getz, Stan, 1927–91, American jazz tenor saxophonist, b. Philadelphia, as Stanley Gayetsky. As a mature musician he was especially known for his “cool” jazz style. He began playing as a teenager...