4 Weird Unsolved Mysteries of Math

There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like: What s the biggest couch you can slide around a 90degree corner Hosted by: Michael Aranda SciShow has a spinoff podcast It s called SciShow Tangents. Check it out at Support SciShow by becoming a patron on Patreon: Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Alisa Sherbow, Silas Emrys, Drew Hart. Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Adam Brainard, Nazara, GrowingViolet, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, charles george, Alex Hackman, Chris Peters, Kevin Bealer, Jason A Saslow Looking for SciShow elsewhere on the internet Facebook: Twitter: Tumblr: Instagram: Sources: Moving sofa Mosers Worm LostinaForest Magic Squares of Squares Images: