domnit + xkcd   12

Geohashing
My grandma misses my graticule by 1.5 blocks.
geohashing  games  xkcd  geography 
may 2008 by domnit
The Laser Elevator
Randall Munroe's illustrations are well-suited to explaining.
physics  laser  transport  space  humor  xkcd  science  drawing 
february 2008 by domnit

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