Conrad Haas 📆 (1509–1576) was a pioneer of #RocketPropulsion. His designs include a three-stage #rocket and a manned rocket 🚀. His work also dealt with the theory of motion of multi-stage rockets, different #fuel mixtures using liquid fuel, and introduced delta-shape fins and bell-shaped 🛎️ #nozzles. https://en.wikipedia.org/wiki/Conrad_Haas

#RocketScience #history

Picture : https://commons.wikimedia.org/wiki/File:Conrad_Haas_rocket.gif