The first 100 people to use code SCIENCE at the link below will get 60% off of Incogni: https://incogni.com/science Sometimes a golf ball with pop back out of the hole. The physics behind it is quite surprising. Watch it happening in slow motion. Here's a great analysis from Daniel Walsh: https://www.youtube.com/watch?v=4er2buINHF0 Check out the Turntable Paradox video here: https://www.youtube.com/watch?v=3oM7hX3UUEU Check out the Motion Amplification video here: https://www.youtube.com/watch?v=rEoc0YoALt0 Check out RDI technologies here: https://rditechnologies.com/ Check out my Discord server here: https://discord.gg/B6uNzAgshy Here are the two papers: https://www.math.tecnico.ulisboa.pt/~jnatar/MG-15/golfer.pdf https://iopscience.iop.org/article/10.1088/0143-0807/28/2/024 (paywall) You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord: https://www.patreon.com/stevemould just like these amazing people: Alex Hackman Glenn Sugden Tj Steyn Pavel Dubov Lizzy and Jack Jeremy Cole Brendan Williams Frank Hereford Lukas Biewald Damien Szerszinski Marshall Fitzpatrick Heather Liu Grant Hay John Zelinka Paul Warelis Matthew Cocke Nathan Blubaugh Twitter: http://twitter.com/moulds Instagram: https://www.instagram.com/stevemouldscience/ Facebook: https://www.facebook.com/stevemouldscience/ Buy nerdy maths things: http://mathsgear.co.uk/