Chaim L. Pekeris joined the Weizmann Institute as head of its Department of Applied Mathematics in 1949. He died in Rehovot, Israel on February 24, 1993. Chaim L. Pekeris Chaim Leib Pekeris (June 15, 1908 – February 24, 1993) was an Israeli-American physicist and mathematician. He made notable contributions to geophysics and the spectral theory of many-electron atoms, in particular the Helium atom. He was also one of the designers of the first computer in Israel, WEIZAC. Pekeris was born in Alytus, Vilna Governorate. With the assistance of his uncle, Pekeris and his two brothers emigrated to the United States around 1925. He
Chaim Weizmann wholly separated and the newly conceived mandate-system applied to them. Weizmann stated at the conference that "the Zionist objective was gradually to make Palestine as Jewish as England was English" Shortly thereafter, both men made their statements to the conference. After 1920, he assumed leadership in the World Zionist Organization, creating local branches in Berlin serving twice (1920–31, 1935–46) as president of the World Zionist Organization. Unrest amongst Arab antagonism to Jewish presence in Palestine increased erupting into riots. Weizmann remained loyal to Britain, tried to shift the blame onto dark forces. The French were commonly blamed for discontent, as