YouTube parak danakota maru gadget ekak hambuna 
It is a Mechanically spinning clock with LED's that spin, giving the illusion of numbers floating in the air. This is the first clock I ever built.This clock utilizes only a few relatively inexpensive electronic components and a recycled motor from a floppy drive and a small microprocessor keeps track of time and changes the pattern on LED's with exact timing to simulate a 7 x 30 array of LEDs. It is an illusion, but it works nicely
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