Since then, I've had my own fantasy of building my own natural clock, and I keep my ears open for stories and news about special clocks:
The living calender gathers together more than just hours and minutes into a giant, overpriced clock, Uniqlo has a flashy website called Uniqlock that seems to show the time in Paris and little else. You can buy a wooden knocking clock that knocks out time on your own vases, soil powered clocks, the perpetually self-winding mechanical clock, a cool three armed clock (video) and one of my favorites, the clock clock (video), which uses the hands of many clocks to spell out the time writ large.
I think one of the challenges of this program was explaining how time elapses at different rates depending on the relative speed of the observer and observed. In my opinion, it is much easier to understand this concept with a drawing like this one: http://en.wikipedia.org/wiki/Relativity_of_simultaneity
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