Saturday, September 3, 2011

Clocks and Northern Dominance

Clockwise and counter clockwise are common terms that come from, well, clocks. 

And those hands on the clocks move that way because... the shadows in a sundial turn that way! 

However, sundials in the southern hemisphere have noon pointing south and the shadow moves counter clockwise as you look down on them.  Once again, something we all take for granted as fundamental is just an accident of fate (northern hemisphere folk invented the first clocks and watches I suppose and thus got to determine "clockwise" and "counter clock wise" for all time thereafter).

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