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 Simcha Simcha ( ; , ) is a Hebrew word that means gladness, or joy, and is often used as a given name. The concept of simcha is an important one in Jewish philosophy. A popular teaching by Rabbi Nachman of Breslov, a 19th-century Chassidic Rabbi, is ""Mitzvah Gedolah Le'hiyot Besimcha Tamid"," it is a great mitzvah (commandment) to always be in a state of happiness. When a person is happy they are much more capable of serving God and going about their daily activities than when depressed or upset. Jews often use "simcha" in its capacity as a Hebrew