Here’s an interesting concept. This clock has a surface which you can write on with a whiteboard marker and when the time passes, whatever you wrote is erased by the hour hand. It doesn’t have a minute hand which would probably make it even harder for me to read!
Trace of Time Clock, click for a larger version
There’s even a YouTube video with weird music of the clock in action in case you can’t imagine it.
[Il-Gu Cha via Gizmodo and Engadget]
