Think like an astronaut. Learn from a former commander of the International Space Station. | MasterClass

📣 On June 10, 1854, Georg Friedrich Bernhard Riemann gave his classic lecture on curved space. ❇️ Catch more space history daily 👉 https://trib.al/oSsStd7 Riemann was a 19th century mathematician from Germany. His landmark lecture included a workable definition of how someone might measure the curvature of space. In the first part of his talk, Riemann asked the question of how we might define an n-dimensional space. This resulted in the definition of Riemann space and laid the foundation for t

You've heard of moonwalking, but space walking is the real deal. Learn a little more about the history of space walks in this week's Space Saturday video! | National Geographic TV