The Skeptical Teacher

Musings of a science teacher & skeptic in an age of woo.

Archive for July 18th, 2011

Self-Tying Knot Trick from TAM9

Posted by mattusmaximus on July 18, 2011

Well, I’m back from The Amaz!ng Meeting 9 in Las Vegas, and I’m slowly but surely getting caught up on things.  I just wanted to take a moment to share with everyone a trick I showed off during my “Skepticism in the Classroom” lecture at TAM9.  In this video, I show how to use a simple nylon rope to perform a *seemingly* mathematically impossible feat: having the rope tie a knot in itself without releasing either end of the rope. I show this to my students as a lesson in skepticism and critical thinking, and it never ceases to catch their interest.


Can you figure out the trick? Stay tuned to my Youtube channel for the solution 😉

Posted in education, magic tricks, mathematics | Tagged: , , , , , , , , , , , , , , , , , , , , , , | 2 Comments »

 
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