Wednesday, August 05, 2020

[xhunidcs] Brass instrument quantum mechanics

Push some valves down on a trumpet and play the partials.  The lips ("embouchure") vibrate only at certain frequencies and refuse to vibrate at others.

This is the essence of quantum mechanics, how "things" are quantized.

Can it also be called the essence of quantum field theory?

It is the essence of string theory.

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