Peaches just might qualify as the most adorable of all the fruits, coated with a soft, uniform layer of fuzz on their skin that tickles the fingers. But why does that fuzz exist, anyway? The world is ...

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Most of us are aware of harmonic nodes. You get the strongest one at the 12th fret, which is exactly halfway along the string length. There’s one at the 5th, which is a quarter length and another at ...