Noteworthy entries.

Penn and Teller explain sleight of hand in three minutes

Penn and Teller's explanation of sleight of hand is delightful. You get the whole lecture in about three minutes. As entertaining as this video is, it could also serve to remind us of a set of principles by which humans deceive each others through fallacious and misleading arguments. Because we are creatures of limited attention and growing fatigue, we are vulnerable to cognitive misdirection much as we are vulnerable to prestidigitation. For more on human attentional limitations, see here. Further, I have given considerable thought to the idea that much human decision-making could be explained in terms of attentional limitations. For more, see this paper I wrote in 1996.

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DI is still under construction, but now there’s artwork in our header

Although more work remains to be done, DI is making progress on its site reconstruction, as you can see. Many of our navigation features are now functional and the site mostly "works." Tonight, "Alistair" of Solostream (the company that created WP-Vybe, the WordPress template I'm using) helped me figure out what I had been doing wrong, thereby enabling the artwork to pop into the header. That artwork really helped to class the joint up, I'd say. I do want to mention that Solostream is a terrific company that provides first rate support. They offer several "magazine" style templates for WordPress websites, and their prices are incredibly reasonable. Check out Solostream's website for details and tutorials. I'll end with a bit of trivia: the "dangerous intersection" you can see in the header is a real-life intersection located at 8th and Cerre, downtown St. Louis, just south of the baseball stadium.

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My first time getting caught by photo enforcement of a traffic violation.

It didn’t take long to realize what that that "Photo Enforcement Program" letter from the City of St. Louis was all about.   As I opened the letter, the only thing that occurred to me was to make sure whether the letter was for me (as opposed to my wife).  It was for me.  I had gotten nailed by the new photo traffic enforcement system that the City of St. Louis installed near my house.   Over the past 30 years, I've received a total of 2 traffic tickets.  I guess I was due. I was pissed, of course.  This was going to cost me $100 even though I didn’t do anything flagrant.  I had rolled a right turn onto a high entrance ramp through a red light.  This occurred at a traffic light 1/2 mile from my house.  I had done it hundreds of times; hundreds of other safe drivers do it every day.   My crime is that I failed to come to a complete stop before turning right to accelerate down that highway ramp.  I was going about 5 mph around that corner. I remembered the strobe flash going off that day last week; at the time, I wondered whether it was aimed at me.  Sure enough.  I should clarify:  I don't always roll through that right turn.  If ever there is any traffic in the area, or any pedestrians, I always come to a complete stop.

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Stay back because . . .

I saw the sign on the back of the van and I understood that I was to "Stay Back." I just didn't understand why. Not that I was tempted to disobey. I wondered, "Did they forget to lock the back door? Will a prisoner throw the door open and scratch my car's bumper?" I suppose the sign means that drivers should give the sheriff lots of room to get the prisoners in and out of the van. Perhaps the warning could be better phrased, though.

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High-resolution multi-stitched inauguration photo

At Barack Obama's inauguration, David Bergman kept busy with his robotic camera mount used in tandem with his Canon G10 camera. After the inauguration, he used his Macbook Pro to stitch together the resulting 220 images into one gigantic 2gb tiff file. The resulting 1,474 megapixel image is dramatic and fun to explore. Equally impressive is that the Gigapan camera mount and the G10 camera he used are not expensive--they can both be purchased for less than $1,000 (less than $500 each).

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