5-Sided Square

Additional information

Check our sponsor The Great Courses Plus (free trial): http://ow.ly/j5cB30hIvm2

This video features Cliff Stoll.

More Cliff Stoll videos: http://bit.ly/Cliff_Videos

Buy a Klein Bottle from Cliff - it's an experience: http://www.kleinbottle.com

Discuss this video on Brady's subreddit: https://redd.it/96x6c4