Fantasyland: Author Kurt Andersen
Above Video: Center for Inquiry / How can we make sense of America’s current “post-factual,” “post-truth,” “fake news” moment? By looking to America’s past. All the way back. To the wishful dreams and make-believe fears of the country’s first settlers, the madness of the Salem witch trials, the fantasies of Hollywood, the anything-goes 1960s, the gatekeeper-free internet, the profusion of reality TV….all the way up to and most especially including President Donald Trump. In this fascinating and lively talk, Kurt Andersen brings to life the deep research behind and profound implications of his groundbreaking, critically acclaimed and bestselling latest work.
Sunday, February 6, 2011
Turning a sphere inside out
This video does not give a lot of specifics but it is interesting. In simple terms, the challenge is all about avoiding sharp bends while inverting a circle with the unusual characteristic of having a surface that can pass through itself.
I urge you to watch a second video discussing the process in detail. It is presented here: "Sphere Inside Out Part II."
You can question the exercise's relevancy, but in my opinion solving such mathematical puzzles is inherently valuable if not for exercising the human mind alone. Both the mathematical calculations needed to solve it and the animation are admirable.
See also:
Posted by
Steve Rensberry