Carl Dennis

  • Night Sky

    It’s good news for the stay-at-homes,The new consensus among astronomers.That the night sky appears roughly the same.From any spot in the…

  • Friendly

    The friendly way to explain the missing punch bowl. Is to assume you loaned it to someone. Who, by the time he thought of returning it, Had lost…

  • The Topaz Room

    More than one couple at the Topaz Room this evening. May have quarreled on the long drive over in the rain. About whether moving to a drier climate…

Video

Where Time Comes From

The clocks that coordinate your cellphone, GPS, and more

Video

Computer Vision Syndrome and You

Save your eyes. Take breaks.

Video

What Happens in 60 Seconds

Quantifying human activity around the world

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