String_theory.png (400 × 386 pixels, file size: 16 KB, MIME type: image/png)
Courtesy xkcd. ([]) Dude says on his website that it's cool to use the comics.
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|current||22:44, 21 January 2010||400 × 386 (16 KB)||PolarBearInTheJungle||Dude says on his website that it's cool to use the comics.|
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