Monthly Archives: March 2011

Posted on March 31, 2011 by

Hilbert with Ladders, 2004 by Don Relyea (Source: http://www.donrelyea.com)

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Noncommutative distances between industries

Posted on March 30, 2011 by

The distance from your house to the grocery must be the same as the distance back, but 20th-century mathematicians speculated about circumstances where this might not be the case. Very small-scale physics is non-commutative in some ways and so is … Continue reading →

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Posted on March 29, 2011 by

You know what’s surprising? Rotations are linear transformations. I guess lo conocí but no entendí. Like, I could write you the matrix formula for a rotation by θ degrees: But why is that linear? Lines are straight and circles bend. When you rotate something … Continue reading →

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Posted on March 28, 2011 by

Learning by Perfume Genius

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Posted on March 27, 2011 by

The Ascent of Mandarin (via sandy dreams in my backpack, man)

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Posted on March 26, 2011 by

School vouchers’ effect on economic inequality.

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Posted on March 25, 2011 by

http://www.bbc.co.uk/emp/9player.swf?revision=10344_10570 The Taiping “Heavenly Kingdom” historical mèmes: appropriating convenient parts of a foreign, exotic religion for one’s own needs. Buddhism in USA over the last 25 years; Christianity in China 100 years ago. sex is bad smoking, drinking is bad … Continue reading →

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