Pop quiz: Can you tell what the device pictured above is. If you answered "a clock that represents the essential building blocks of a CPU while using binary and HEX numerals to display time," then you're certifiably crazy - and correct. The brainchild of tinkerer extraordinaire Lior Elazary, the "CPU clock" mechanically emulates the application of computer concepts - codes, instructions and checks - to create a "simple" wall clock. To display the time, the middle register uses binary numbers read from bottom to top to indicate the hour (a reading of "0010" indicates 2 o'clock, for example).
Engadget, Custom clock pays homage to CPU, separates geeks from the squares (video)
