i spent a very enjoyable math binge day learning about waves and what i learned is that waves are extremely fucked up
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wifi relies on radio waves! there are international regulations on which parts of the radio spectrum people are allowed to use!! it is *illegal* to emit too many *photons of certain frequencies* because you might *interfere with the photons people are using to download porn*
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brainwaves are real! i thought they were a metaphor for some reason!! here's a picture
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the range of human hearing is apparently between 20 Hz and 20 kHz. humans can hear sound waves oscillating *twenty thousand times a second*!!
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chladni figures are fucked. i can tell you what theorems justify their existence but they're still fucked. i am not okay
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chladni figures are the best. i wonder why more sand concentrates in some parts of the nodal set, maybe it's from where the sand is sprinkled, or bc of the way it's implemented?
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presumably it also partly depends on how much the amplitude of the wave increases in a neighborhood of the nodal lines?
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that should fling the sand further away right? that makes sense, also explains why it looks like sand is accumulating where the nodal sets are close to intersecting
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