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Physics. Huh.


Here’s an article about the physics of the banjo. Specifically, why it twangs.

It starts thusly: “Today, we get an answer thanks to the work of David Politzer at the California Institute of Technology in Pasadena, who in his spare time, is a Nobel prize-winning theoretical physicist.” Call me crazy, but I’m guessing theoretical physicist is his day job and this banjo thing is something he does in his spare time, but that’s about the last thing I understood.

It’s fucking physics, man. Of course I didn’t understand it.

This I got. I think. If a sound vibration is matched with a vibration that is similar and several tens of hertz higher, it sounds plinky. You can (apparently) make this happen in Audacity by making a sound and screwing with it. It doesn’t apply to things like guitars and violins because wood tops aren’t as springy as a banjo head.

But I got all tangled up in the difference between the frequency of the sound and the frequency of the vibration. And that made me feel stupid. And that made me sad.

Don’t be sad, Weasel! It’s the weekend!

February 24, 2017 — 8:41 pm
Comments: 18