Perception:
Category: Research
Greta and I did our undergraduate studies at the University of Chicago, or as a commonly-sold T-shirt on campus put it, "where fun goes to die." To say that Chicago didn't emphasize academics over a social life is to deny...
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Posted by Dave Munger at 4:20 PM • 10 Comments •
Category: Research
Recently we took our hybrid car into the shop for its annual emissions test. In our state, the test is conducted while the car is idling. A hybrid doesn't actually idle -- it shuts the engine off completely. So our...
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Posted by Dave Munger at 4:46 PM • 15 Comments •
Category: Research
The other day, our car wouldn't start and Jim had to ask a neighbor over to help him jump-start it. There was much rushing in and out of the house looking for flashlights and other tools to help get the...
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Posted by Dave Munger at 4:20 PM • 9 Comments •
Category: Research
How did you decide to read this post? You might have seen the headline in an RSS reader or noticed it on the ScienceBlogs home page. Maybe someone emailed or tweeted the link to you. But you still had to...
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Posted by Dave Munger at 11:30 AM • 27 Comments •
Category: Research
Take a look at the following picture: Your job is to look for the one line that's either perfectly horizontal or perfectly vertical. It took me about 25 seconds to find it. Can you do better? How about now? A...
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Posted by Dave Munger at 3:41 PM • 5 Comments •
Category: Research
Take a look at these photos of Jim and Nora: They've clearly been distorted (using the "spherize" filter in Photoshop), but in opposite directions. Jim's been "expanded" to make more spherical, while Nora has been "contracted" to look more concave....
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Posted by Dave Munger at 4:36 PM • 15 Comments •
Category: Research
You may have noticed that Cognitive Daily hasn't exactly been living up to its name recently. During the summer vacation season, we travel quite a bit, so it's difficult to maintain our usual pace of posting. But along the way...
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Posted by Dave Munger at 4:28 PM • 8 Comments •
Category: Research
Take a look at this quick movie. What you'll see is two sets of three views of the same scene (our living room). For each group of three views, your job is to decide if the third view is taken...
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Posted by Dave Munger at 3:05 PM • 10 Comments •
Category: Research
[Originally posted in November 2006] The recent controversial shooting of an unarmed black man in New York has generated terrible grief and perhaps justifiable anger. But if officers honestly believed the man was armed and intended to harm them, weren't...
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Posted by Dave Munger at 11:40 AM • 7 Comments •
Category: Research
[Originally posted in January 2008] When we watch a movie, we're usually not conscious of the cuts made by the editor. The camera angle may change dozens of times during a scene, and we follow along as if the flashing...
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Posted by Dave Munger at 11:30 AM • 12 Comments •