Bob C just sent in a cool clock featured on Hack a Day - it is a clock made out of antique display technology.  The digits are written out on a long strip and then are wound on two rollers.  The digits are changed by winding the appropriate spool to expose the desired digit. This creates a neat effect that really can't be replicated an other way.  Be sure to check out  hackvandedam.nl for more info. [via hack a day via Bob C.]

Links

• Original Vimeo Video https://vimeo.com/37557095
• Backup Youtube Video https://youtu.be/kSx6-Nq3je0