Category Archives: technology

Stop lights

For something like 80 years, a traffic light was an ordinary incandescent light bulb mounted behind a colored glass lens. Then, in 1999, LED signal lights began appearing at street corners; the light bulb was replaced by an array of … Continue reading

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Oh, the places I’ve been!

When I heard the rumors that my iPhone was tracking my movements and keeping a log of location data, I was annoyed. Now that Apple has fixed this bug/feature, I’m even more annoyed. There’s just no pleasing me. The fuss … Continue reading

Posted in computing, modern life, technology | 2 Comments

More on the memristor meme

I have two postscripts to my American Scientist column on memristors and the  related posting here on bit-player. First up is a charming preprint by Yuriy V. Pershin and Massimiliano Di Ventra on “Solving mazes with memristors: a massively-parallel approach.” The … Continue reading

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How I didn’t invent the memristor

The memristor is a new electronic component, an addition to the family of “passive” circuit elements—a family that for well over 150 years had just three members: the resistor, the capacitor and the inductor. Enthusiasts for memristor technology argue that … Continue reading

Posted in science, technology | 3 Comments