Monthly Archives: March 2011

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

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Noncommutative distances between industries

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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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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Learning by Perfume Genius

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

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School vouchers’ effect on economic inequality.

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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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