Daily Shaarli
January 19, 2022
Markus Deserno on Twitter: "May I invite you to a fun thread about a delightful quirk of relativity theory? Starting with a simple fact about rotations, I’ll hope to give you some intuition about something that’s considered wildly counterintuitive: velocity addition. Intrigued? Buckle up! https://t.co/iYscIiZAH6" / Twitter
A really interesting thread on relativity. OP analogize the nonlinearity of slopes comparing to angles to describe how speed in relativity is an more cumbersome defined property compared to a more tidy notion of "rapidity" which is linear.