Domingo Liotta Domingo Liotta Domingo Santo Liotta (born November 29, 1924) is a pioneer of heart surgery, creator of multiple cardiac prostheses including the first total artificial heart used in a human being. Domingo Santo Liotta son of Italian immigrants, was born in the city of Diamante, Entre Rios, Argentina on November 29, 1924. He completed his elementary school at his hometown at "Independencia School", and his high school at the "Justo Jose de Urquiza School" in Concepcion del Uruguay, Entre Rios. In 1949, he graduated as a Medical Doctor at National University of Córdoba (Argentina). He received a doctorate in Medicine
MD Helicopters MD 500 MD Helicopters MD 500 The MD Helicopters MD 500 series is an American family of light utility civilian and military helicopters. The MD 500 was developed from the Hughes 500, a civilian version of the US Army's OH-6A Cayuse/Loach. The series currently includes the MD 500E, MD 520N, and MD 530F. The successful Hughes 500/MD 500 series began life in response to a U.S. Army requirement for a Light Observation Helicopter (LOH). Hughes' Model 369 won the contest against competition from Bell and Hiller. The subsequent OH-6 Cayuse first flew in February 1963. The 500 series design features shock-absorbing landing