Wednesday, February 18, 2009

more nerdiness

Last night I was walking home.
There is a long straight sidewalk in front of my apartment complex, and I must traverse the length of it.  Part way down the sidewalk, I began to notice the way that my steps occasionally placed my feet on the cracks in the sidewalk.  And I immediately began calculating the difference in frequency.  I imagined how I might plot the cracks in the sidewalk with Dirac delta functions -- basically pulses -- and my steps as a square wave from -1 to 1.  I could overlay the plots...

And I think I actually got that far before I realized how incredibly overthetop nerdy that thought process was.

As it turns out, I took five sets of steps for every 6 divisions of the sidewalk.

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