• Science

    Carl Sagan, Immortalized in SpokePOV

    OK, maybe “immortalized” isn’t exactly the right word for a portrait in LEDs that only appears when in motion, but it’s close enough. SpokePOV is a kit you can build that will let you program images that appear on your bicycle’s wheel when you ride at a certain speed. The “POV” stands for “persistence of vision,” which in a colloquial…

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