Finally, here was my first video on general relativity per se. And it starts with a basic but incredibly deep question: Are astronauts weightless? Pondering similar questions (there were no astronauts back then) would lead Einstein to the happiest thought of his life… and for good reasons. It might be the most dramatic thought (in physics) I’ve ever encountered!
Despite a few technical issues and the smallness of the number of views, I still regard this video as my best one yet. Please let me know what you think 😛