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Oct 10, 2011
But then what would barry do when he's finished reading them all? And how would he put his inimitable stamp on those which trigger random chemical reactions in his brain that must be responded to?

Most of the time I wish I had just clicked next instead of reading the comments, but occasionally it's actually worth it, and I'd probably even read them even if I was never "rewarded" for it!
 
 
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Apr 12, 2011
Perhaps the rock is shaped unevenly - or flat, even - and is rotating while in flight, and the varying air resistance caused by this is responsible for the stairstep-like pattern of its downward path.

Of course we should also consider that he said sales are dropping *like* a rock, and "like" in this context means "similar to", not "exactly identical to". So we really should have no reasonable expectation of a perfect parabola-shaped graph.

On the other hand, it is entirely possible that we are overly obsessing over details in the cartoon, and perhaps we should just go and read the next one.. :)
 
 
Sep 17, 2010
@boilhead: That's a good point. If you where to drop a rock from a high enough stationary point, you would see the parabola caused by the Earth's rotation unless you where right at the Earth's North or South axis point.

@barrycarter: It's probably bumpy because whoever's drawing it is a bundle of nerves after being managed by such visionaries.
 
 
Sep 17, 2010
My complaint was about the stairstep pattern. The graph is a "bumpy" parabola at best, not a true one.
 
 
Sep 16, 2010
You can throw a rock at any angle to the horizontal and it always follows a parabola (if, like all good physicists, you ignore air resistance) - they can go up as well as down. A vertical drop is a special case of a parabola.

Newton was a clever guy, if a little paranoid.
 
 
 
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