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
Faisal–Weizmann Agreement explicitly authorised by his father to enter into such an agreement, with his instructions from his father limited to the requirement that he accept only fulfilment of the previous British promises for Arab independence; the caveat was added as a result. The next day, Weizmann arrived in Paris to head the Zionist delegation to the Peace Conference. Agreement Between Emir Feisal and Dr. Weizmann 3 January 1919 His Royal Highness the Emir Feisal, representing and acting on behalf of the Arab Kingdom of Hedjaz, and Dr. Chaim Weizmann, representing and acting on behalf of the Zionist Organization, mindful of the