I use this blog to gather information and thoughts about invention and innovation, the subjects I've been teaching at Stanford University Continuing Studies Program since 2005.
The current course is Principles of Invention and Innovation (Summer '17).
Our book "Scalable Innovation" is now available on Amazon http://www.amazon.com/Scalable-Innovation-Inventors-Entrepreneurs-Professionals/dp/1466590971/
Monday, January 02, 2012
Invention of the Day: Missing Square Puzzle.
All parts of the triangles below are the same, though arranged differently. Why the hole?
According to Martin Gardner, the puzzle was invented by a New York City amateur magician Paul Curry in 1953. (Wiki)
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