[bek-uh-rel; french bekuh-rel] /ˌbɛk əˈrɛl; french bɛkəˈrɛl/
[a-lek-sahn-druh ed-mawn] /a lɛkˈsɑ̃ drə ɛdˈmɔ̃/ (show ipa), 1820–91, french physicist (son of antoine césar).
[ahn-twan sey-zar] /ɑ̃ˈtwan seɪˈzar/ (show ipa), 1788–1878, french physicist.
[ahn-twan ahn-ree] /ɑ̃ˈtwan ɑ̃ˈri/ (show ipa), 1852–1908, french physicist (son of alexandre edmond): n-bel prize 1903.
the derived si unit of radioactivity equal to one disintegration per second bq
c20: named after antoine henri becquerel
antoine henri (ɑ̃twan ɑ̃ri). 1852–1908, french physicist, who discovered the photographic action of the rays emitted by uranium salts and so instigated the study of radioactivity: n-bel prize for physics 1903
becquerel bec·que·rel (bě-krěl’, běk’ə-rěl’)
a unit of measurement of radioactivity, equal to one disintegration per second.
the si derived unit used to measure the rate of radioactive decay. when the nucleus of an atom emits nucleons (protons and/or neutrons) and is thereby transformed into a different nucleus, decay has occurred. a decay rate of one becquerel for a given quant-ty means there is one such atomic transformation per second.
family of french physicists, including antoine césar (1788-1878), one of the founders of the science of electrochemistry; his son alexandre edmond (1820-1891), noted for his research on phosph-r-scence, magnetism, electricity, and optics; and his grandson antoine henri (1852-1908), who discovered spontaneous radioactivity in uranium. antoine henri becquerel’s work led to the discovery of radium by marie and pierre curie, with whom he shared the 1903 n-bel prize for physics.
- A c bell
[bel] /bɛl/ noun acton [ak-tuh n] /ˈæk tən/ (show ipa) pen name of anne brontë. alexander graham, 1847–1922, u.s. scientist, born in scotland: inventor of the telephone. (arthur) clive (howard) 1881–1964, english critic of literature and art. currer [kur-er] /ˈkɜr ər/ (show ipa) pen name of charlotte brontë. ellis, pen name of emily brontë. james […]
- A c boult
[bohlt] /boʊlt/ noun sir adrian cedric, 1889–1983, english conductor. boult /bəʊlt/ verb a variant spelling of bolt2 boult /bəʊlt/ noun sir adrian (cedric). 1889–1983, english conductor
- A c clairaut
[klai-roh; french kle-roh] /klɛəˈroʊ; french klɛˈroʊ/ noun alexis claude [a-lek-see klohd] /a lɛkˈsi kloʊd/ (show ipa), 1713–65, french mathematician.
- A c clarke
[klahrk] /klɑrk/ noun arthur c(harles) 1917–2008, english science-fiction writer. kenneth spearman [speer-muh n] /ˈspɪər mən/ (show ipa), (“kenny”; “klook”) 1914–85, u.s. jazz drummer, a bebop pioneer. clarke /klɑːk/ noun sir arthur c(harles). 1917–2008, british science-fiction writer, who helped to develop the first communications satellites. he scripted the film 2001, a sp-ce odyssey (1968) austin. 1896–1974, […]
- A c de a f e moniz
[maw-neesh] /mɔˈniʃ/ noun antonio caetano de abreu freire egas