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. 44 more words
I read that astronauts are not weightless, they are just falling at the same speed as their spaceship. I don’t get it. Can you explain it?
Answered by Dr. Brian Tonks, Astronomy Professor, BYU-Idaho
It is true—astronauts are not weightless. Weight, as scientists use the term, refers to the gravitational attraction of a planet (or moon) for another object. 755 more words