The first 200 people to sign up at https://brilliant.org/stevemould will get 20% off an annual subscription. It's possible to sail a yacht faster than the wind that powers it! Although it happens all the time, it's really counterintuitive. Can it be explained with Bernoulli or Newton? Or both? Here's Derek's video on Veritasium: https://www.youtube.com/watch?v=jyQwgBAaBag Subscribe to Matt Parker here: null You can buy my books here: https://stevemould.com/books You can support me on Patreon here: https://www.patreon.com/stevemould just like these amazing people: Glenn Watson Peter Turner Joël van der Loo Matthew Cocke Mark Brouwer Deneb 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/