[math-fun] Nice video NASA

https://m.youtube.com/watch?v=0yNzSwlnQ2Q In case you didn’t see... it takes a lot of math to make this possible, and even more to explain what it is we are seeing. No, mercury isn’t riding a perfect ellipse. Elliptic functions do better to account for precession, but still, nature is messy. I like the music too, great! And no astronauts were harmed, much less involved, another plus. Enjoy —Brad