Simcha Blass Simcha Blass Simcha Blass (November 27, 1897 – July 18, 1982; ) was a Polish-Israeli engineer and inventor who developed the drip irrigation system with his son Yeshayahu. Simcha Blass was born in Warsaw, Poland, which was then part of the Russian Empire, to an Orthodox Jewish family. He was active in the Jewish self-defense units organized in Warsaw to defend Jews during the end of World War I. His engineering studies in Warsaw were interrupted by the Polish-Soviet War and completed after that war. During the war, he was recruited to the Polish Army, there he invented for the
Sandi Simcha DuBowski "The Jewish Daily Forward"'s "Forward 50", which is given to the 50 Jews who have "been at the center of the year's events, demonstrating leadership, offering new ideas and representing a distinct Jewish presence in American life." He is also a recipient of the Rockefeller Foundation's Film/Video/Multimedia Fellowship and the Creative Capital Moving Image Award. Along with Rabbi Steven Greenberg, DuBowski was awarded seed funding by Steven Spielberg's Righteous Persons Foundation in order to launch an Orthodox community education project for "Trembling Before G-d" in the U.S., Israel and the U.K. Sandi Simcha DuBowski Sandi Simcha DuBowski is an American