That gibberish on a blackboard is actually a clock, made by Dutch industrial designer Christiaan Postma. He used over 150 individual clock mechanism to spell out the hour!
Link - via CrunchGear
To get a full appreciation of how it works, see this Flash animation of the clock in fast forward.
And come on, if after owning the clock for a day or two you can't approximate how closely the hands are to forming the letters withing (a very generous) fifteen minutes, you probably should just have a big digital watch anyway and forget the "hands" style altogether :)
This is a very clever art piece.