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Light-Emitting Diode

by Ephemeron, 6th Feb 2011

Protip: In a pinch, an LED can double as a lie detector.

xkcd sources are available for this comic.

Permanent link to this comic: http://xkcdsw.com/3251

Trapped in a Bitcoin mine, send help

Rated for humour:

8/10

Rated for making xkcd worse:

3/10

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