Latest Posts

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  Beautiful Blackboards of Mathematicians
  There’s something wonderful about chalk on a blackboard.
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  Not a real math problem
  The New York Times on mathematicians talking about their hatred for the the 8 ÷ 2(2+2) = ? “problem.”
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  Film Review: Who Will Write Our History?
  My review of an exceptional documentary film that tells the story of resistance through documentation of daily life in the Warsaw Ghetto.
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  The kilogram is getting a makeover
  The way we define a kilogram (and pounds too) is basically a high-tech refinement of a medieval technology. That’s about to change as the most influential bar in Paris is shutting down.
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  The Permanent, Unmistakable Mark Human Beings Have Left on Planet Earth
  Have we entered a new geologic era, the Anthropocene? Or put differently: hundreds of thousands of years from now, when future geologists sift the earth for clues about our present day, what lasting evidence of our existence will they find?
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  Announcing World of the Weasel
  I’m excited to announce the launch of World of the Weasel, a series of picture books for kids and the adults who read to them!
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  What would our planets look like if you flew by?
  Artist Michael Benson has made some pretty fun and stunning images of celestial bodies in our solar system rendered in a manner that supposedly mimics the way our human eyes would perceive them if we were to fly by.
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  A Stradivarius Recovered
  A beautiful story on NPR from legal correspondent Nina Totenberg about her late father’s stolen Stradivarius violin.
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  PBS LearningMedia
  PBS LearningMedia is a very cool website partnership between PBS and WGBH Boston. They’re taking free PBS media content and adding a great discovery and filtering layer on the web that allows educators (or anyone, for that matter) to find compelling assets to compliment or supplement academic learning.