Electromagnetic Hourglass
digital | electromechanical | magnets | timers
We’ve seen some unique clocks and timers, but this is the first time we’ve seen one that displays time using the kind of metal filings you’d find in a Wooly Willy toy. B.B. Korry created this electromechanical clock which uses a grid of electromagnets to attract and release iron filings to count down seconds. It’s really loud, though.
