XP3 Ultra Clock: Using Persistence of Vision to Tell the Time
XP3 Ultra Clock , a "persistence of vision" clock - $59.95This one's a classic, but it's still pret... ...a classic, but it's still pretty nifty. Here's a clock that uses an oscillating wand with LEDs and the c... ...Shop: http://shop.neatorama.com/product-info.ph...
https://www.neatorama.com/2009/09/12/xp3-ultra-clock-using-persistence-of-vision-to-tell-the-time/
