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
Simcha Friedman Simcha Friedman Simcha Friedman (, 1911, Střížov, Bohemia - 5 January 1990) was an Israeli rabbi, educator and politician who served as a member of the Knesset for the National Religious Party in two spells between 1969 and 1977. Born in Driesendorf in Bohemia, Austria-Hungary (now Střížov in the Czech Republic) in 1911, Friedman moved to Nuremberg with his family at a young age. He studied at a rabbinical seminary and at the Humboldt University of Berlin. He taught at a Jewish school between 1935 and 1938, before making aliyah to Mandatory Palestine in 1939, where he taught at Mikveh