The number 37 is on your mind more than you think. Head to https://brilliant.org/veritasium to start your free 30-day trial and get 20% off an annual premium subscription. Huge thanks to Tom Magliery for sharing his 37 collection with us. Support http://thirty-seven.org/ by sharing your own 37 sightings to tom@thirty-seven.org! Thanks to Dr. Todd Landman, the Academic Magician, for sharing his footage of the 37 Force. - https://www.todd-landman.com/ ▀▀▀ Special thanks to our Patreon supporters! Join the community to help us keep our videos free, forever: https://ve42.co/PatreonDE Sam Lutfi, Lee Redden, Juan Benet, Richard Sundvall, Paul Peijzel, Gnare, Michael Krugman, Meekay, Ubiquity Ventures, Marinus Kuivenhoven, Bill Linder, Evgeny Skvortsov, Burt Humburg, Dave Kircher, Diffbot, john kiehl, Blake Byers, Stephen Wilcox, John H. Austin, Jr., Josh Hibschman, TTST, Orlando Bassotto, Anton Ragin, David Johnston, KeyWestr, Tj Steyn, meg noah, Chris Harper, Adam Foreman, Max Paladino, Balkrishna Heroor, I. H., Garrett Mueller, Bertrand Serlet, Kyi, wolfee, Matthias Wrobel If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - null ▀▀▀ References: Simon, W. E. (1972). “Blue Seven Phenomenon” in Elementary and Jr. High Children. Psychological Reports - https://ve42.co/Simon1972 Trueman, J. (1979). Existence & Robustness of Blue Seven Phenomena. The Journal of General Psychology - https://ve42.co/Trueman1979 Saito, M. (1999). “Blue and Seven Phenomena” in Japanese Students. Perceptual & Motor Skills - https://ve42.co/Saito1999 Philbrick, J. L. (1976). Blue seven in East Africa: Preliminary report. Perceptual & Motor Skills - https://ve42.co/Philbrick1976 Hargreaves, S. (2009). The psychology of randomness. - https://ve42.co/Hargreaves2009 The 37 Force via The Magician’s Forum - https://ve42.co/37Force1 Fulves, K. (1979) Self-Working Mental Magic. Dover Publications, Inc. - https://ve42.co/Fulves1979 Random numbers via The Jargon File at catb.org - https://ve42.co/Jargon Random Number Survey by MahoganyForest via Reddit - https://ve42.co/RedditRndm Prime number theorem via Wikipedia - https://ve42.co/WikiPNT Grossack, C. (2023). A truly incredible fact about the number 37. Grossack.site - https://ve42.co/Grossack2023 Least prime factor of n via oeis.org - https://ve42.co/LeastPrime Fry, H. (2017). When should you settle down? ideas.ted.com - https://ve42.co/Fry2017 Choosing Toilets by Numberphile - https://www.youtube.com/watch?v=XIOoCKO-ybQ Seaton, R. (2014). The Secretary Problem Explained: Dating Mathematically. rs.io - https://ve42.co/Seaton2014 Images & Video: Just 37 by Tom Magliery - https://ve42.co/Just37 R4000 Processor via Molecular Expressions - https://ve42.co/micro37 The “37” Cluster by Noel Carboni - https://ve42.co/NGC2169 Charles Fleischer via Wikimedia - https://ve42.co/Fleischer ▀▀▀ Directed by Emily Zhang Written by Emily Zhang and Derek Muller Edited by Peter Nelson Asst edited by Luke Molloy Animated by Fabio Albertelli, Ivy Tello, and Leigh Williamson Illustrated by Jakub Misiek Filmed by Emily Zhang, Casper Mebius, Derek Muller, Michael Cimpher, and David Szasz Additional research by Gregor Čavlović Produced by Emily Zhang, Giovanna Utichi, Han Evans, and Emily Taylor Thumbnail contributions by Ignat Berbeci, Ren Hurley, and Peter Sheppard Additional video/photos supplied by Getty Images and Storyblocks Music from Epidemic Sound