German arms manufacturer and inventor of a repeating rifle and pistol (1838-1914)
a semiconductor in which electrical conduction is due chiefly to the movement of positive holes
United States financier and philanthropist (1837-1913)
English writer of novels about moral dilemmas in academe (1905-1980)
(stock market) the price of a stock divided by its earnings
a long-playing phonograph record; designed to be played at 33.3 rpm
the 16th letter of the Roman alphabet
the 16th letter of the Roman alphabet
a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms