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 disputes between the two figures. During the war years, Brandeis headed the precursor of the Zionist Organization of America, leading fund-raising for Jews trapped in Europe and Palestine). In early October 1914 the "USS North Carolina" arrived in Jaffa harbor with money and supplies provided by Schiff, the American Jewish Committee, and the Provisional Executive Committee for General Zionist Affairs, then acting for the WZO, which had been rendered impotent by the war. Although Weizmann retained Zionist leadership, the clash led to a departure from Louis Brandeis's movement. By 1929, there were about 18,000 members remaining in the ZOA, a