Watch this great talk by Tadashi Tokieda presenting some surprising phenomenona in toys. This is quite fun to watch.

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Posted by Ed on February 20, 2014

Watch this great talk by Tadashi Tokieda presenting some surprising phenomenona in toys. This is quite fun to watch.

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Posted in mathematics, physics | Tagged: toys | Leave a Comment »

Posted by Ed on February 15, 2014

Posted in mathematics | Tagged: bagel, donut, topology | Leave a Comment »

Posted by Ed on February 14, 2014

Check out the website by the American Institute of Mathematics with a list of approved textbooks:

http://aimath.org/textbooks/approved-textbooks/

Subjects are calculus, differential equations, linear and abstract algebra, real analysis, introduction to proofs, combinatorics, discrete structures and probability.

Posted in mathematics | Tagged: free books | Leave a Comment »

Posted by Ed on February 4, 2014

Watch this marvelous device that lets you view your veins. It almost looks like an x-ray vision. When I first watched the video I thought this was only a gimmick but it really exists.

Posted in biology, physics | Tagged: vein viewer | Leave a Comment »