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 reported the Declaration to Weizmann with elation all round: he repeated "mazel tov" over and over. The Entente had fulfilled its commitment to both Sharif Husein and Chaim Weizmann The Arab Revolt threatened to upset the apple cart. Turkish atrocities never reached Weizmann's ears, at least from the British. Sykes stressed the Entente: "We are pledged to Zionism, Armenianism liberation, and Arabian independence". On 2 December, Zionists celebrated the Declaration at the Opera House; the news of the Bolshevik Revolution, and withdrawal of Russian troops from the frontier war with Turkey, raised the pressure from Constantinople. On 11 December, Turkish