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 against "repressive cruelty" to the Arabs. He regularly travelled by train to London to discuss spiritual and cultural Zionism with writers like Ginzberg whose pen name was Ahad Ha'am. He stayed at Ginzberg's home in Hampstead, whence he lobbied Whitehall, beyond his job as Director of the Admiralty for Manchester. Zionists believed that anti-Semitism led directly to the need for a Jewish homeland in Palestine. Weizmann first visited Jerusalem in 1907, and while there, he helped organize the Palestine Land Development Company as a practical means of pursuing the Zionist dream, and to found the Hebrew University of Jerusalem. Although