Remember that contraption you used to be able to buy at Sharper Image with the glass bulbs filled with colored water and air? You could tell the barometric pressure based on how high the "10", "5" and "1" were floating. I think. I never owned one.
I think you could build an analogous device to work on Chicago's elevated trains. You can measure literary pressure by how many people per car are reading "Harry Potter and the Deathly Hallows". I counted four tonight.
I think that means a storm is coming.
1 comment:
I think you're on to something. I had three yesterday. For how much do earlier volumes count? I saw someone on #1 today.
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