Pioneering Spacecraft Propulsion In Late Medieval Transylvania
Conrad Rudolf Haas was a Transylvanian Saxon engineer of Austrian origin (born in Dornbach, near Vienna, Austria) who lived in the town of Hermannstadt/H쎤rmeschtat (Romanian: Sibiu) from the Principality of Transylvania at some point in the Late Middle Ages/Renaissance period. Prior to his arrival in Transylvania, present-day Romania, Conrad Haas was in charge of the…

