Re:Inkless metal pen will write forever
by barbs on Monday February 10, 2014 @09:11PM
(#7215258)
Awww, I was kind of hoping it would somehow take small amounts of dead skin from whoever was holding it, and then somehow turn it into graphite...
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Re:Inkless metal pen will write forever
by chris-martin on Tuesday February 11, 2014 @01:28AM
(#7216152)
How about a photosynthetic process that makes graphite from atmospheric carbon dioxide?