adhesion theory of friction
31BIKERMAN, JACOB JOSEPH — (1898–1978), U.S. physical chemist. Bikerman was born in Odessa, Russia, and attended the University of St. Petersburg (Leningrad). He held a variety of academic and industrial positions in the U.S.S.R., Germany, and Britain before going to the U …
32LURIA, ISAAC BEN SOLOMON — (1534–1572), kabbalist, referred to as Ha Ari (האר״י; the (sacred) lion from the initials of האלוהי רבי יצחק; Ha Elohi Rabbi Yiẓḥak, the divine Rabbi ). This cognomen was in use by the end of the 16th century, apparently at first in kabbalistic… …
33RUSSIA — RUSSIA, former empire in Eastern Europe; from 1918 the Russian Soviet Federative Socialist Republic (R.S.F.S.R.), from 1923 the Union of Soviet Socialist Republics (U.S.S.R.); from 1990 the Russian Federation. Until 1772 ORIGINS The penetration… …
