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

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.

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 »