Ghost Jams
You know those strange traffic jams that appear to come out of nowhere, with nothing causing them, and then suddenly end? As Wired reports , a team of M.I.T. mathematicians calls them “phantom jams” or “jamitons,” and has found mathematical equations to describe them, similar to those that describe detonation waves from explosions. Phantom jams, the mathematicians found, can form when a single driver slows down (to take a sip of coffee or talk on the phone) on a road with too many cars on it. They hope the new equations will lead to roads engineered to keep traffic below the density where a jamiton can form. Read More »
Quotes Uncovered: Who Said "No Cigar"?
A while back, I invited readers to submit quotations for which they wanted me to try to trace the origins, using The Yale Book of Quotations and more recent researches by me. Hundreds of people have responded via comments or e-mails. I am responding as best I can, a few per week. Read More »
The Yellow Face, It Burns Us
Draw a picture of the sun. If you’re like us, you probably have to fight the urge to add a smiley face to it. That’s a cognitive leftover from our childhood: young children almost always add smiley faces to sun drawings, and believe that the sun benignly follows them around. It turns out that this same tendency, to assign agency to patterns and objects beyond our control, also drives conspiracy theorizing among adults. Read More »
Zach the Cat as an Example of Why Businesses Should Experiment More
We found our cat Zach at the beach as a tiny kitten, hungry and flea-ridden. We brought him, four kids in tow, to the anti-cruelty society (which we now refer to simply as the “cruelty society”), but they told us that he would almost certainly be put to death if we left him. Not quite ready to give that life lesson to the kids, we let him join our family, and he has been a model citizen ever since.
Until recently. After a year, he suddenly stopped using the litter box, preferring instead rugs and piles of our clothes. So Jeannette took him to the local vet, who advised the following plan of action: Read More »
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