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flerovium
(Encyclopedia) flerovium, artificially produced radioactive chemical element; symbol Fl; at. no. 114; mass number of most stable isotope 289; m.p., b.p., sp. gr., and valence unknown. Situated in…Whately, Richard
(Encyclopedia) Whately, RichardWhately, Richardhwātˈlē [key], 1787–1863, English prelate and writer. Fellow and tutor of Oriel College, Oxford, he published a witty work aimed at extreme skeptics,…Moseley, Henry Gwyn Jeffreys
(Encyclopedia) Moseley, Henry Gwyn JeffreysMoseley, Henry Gwyn Jeffreysmōzˈlē [key], 1887–1915, English physicist, grad. Trinity College, Oxford, 1910. He began his research under Ernest Rutherford…darmstadtium
(Encyclopedia) darmstadtium, artificially produced radioactive chemical element; symbol Ds; at. no. 110; mass number of most stable isotope 281; m.p., b.p., sp. gr., and valence unknown. Situated in…Euclid, Greek mathematician
(Encyclopedia) EuclidEuclidy&oomacr;ˈklĭd [key], fl. 300 b.c., Greek mathematician. Little is known of his life other than the fact that he taught at Alexandria, being associated with the school…atomic weight
(Encyclopedia) atomic weight, mean (weighted average) of the masses of all the naturally occurring isotopes of a chemical element, as contrasted with atomic mass, which is the mass of any individual…copernicium
(Encyclopedia) copernicium, artificially produced radioactive chemical element; symbol Cn; at. no. 112; mass number of most stable isotope 285; m.p., b.p., sp. gr., and valence unknown. Situated in…Soddy, Frederick
(Encyclopedia) Soddy, FrederickSoddy, Fredericksŏdˈē [key], 1877–1956, English chemist. He worked under Lord Rutherford at McGill Univ. and with Sir William Ramsay at the Univ. of London. After…Tamayo, Rufino
(Encyclopedia) Tamayo, RufinoTamayo, Rufinor&oomacr;fēˈnō tämäˈyō [key], 1899–1991, Mexican painter, b. Oaxaca. Considered one of the leading Mexican artists of the 20th cent., Tamayo first…humus
(Encyclopedia) humushumushy&oomacr;ˈməs [key], organic matter that has decayed to a relatively stable, amorphous state. It is an important biological constituent of fertile soil. Humus is formed…Trending
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