One of the things that makes flip clocks so interesting, is the fact that while they are digital clocks, and were considered quite "modern" in their day, they are purely mechanical, or more precisely, electromechanical. The mechanical design won awards back in the day (late 60s to 70s) and the minute by minute flipping of numbers was found to be mesmerizing by many. Today, flip clocks bring back memories of the "space age" for those who lived it, and today are sought out for...