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 Krauss Simcha Krauss Rabbi Simcha Krauss (born 1937) a rabbi associated with the liberal end of Centrist Orthodoxy, is known for his role in the Religious Zionists of America, but since making aliyah in 2005, he has been involved with Yeshivat Eretz HaTzvi, in the Katamon neighbourhood of Jerusalem. He is part of a family of which he is the 13th of 14 generations of Rabbis. After moving from Romania as a child, he studied at Yeshivat Chaim Berlin in New York under Rabbi Yitzchok Hutner, as well as learning under Rav Soloveitchik. He was a close student of the Rav,