Christmas wish lists aren’t usually the sort of thing this writer pens, but I may make an exception this year for an exciting new writing implement. Living Ink Technologies has created a writing utensil inked with live green algae. And if that isn’t enough to register this thing a permanent slot on the list of ‘coolest gadgets of all time,’ consider this: what you write with this pen isn’t immediately visible because it takes a few days for the algae to grow. Amazing.
Fascinating “timelapse” pen uses living algae for ink [Inhabitat]
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