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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anyway this tweet was very inspirational i thought about it a lot so thank you
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what's the deal with people noticing that everything is vibrations and then deciding that means they should become vegan or collect crystals instead of learning signal processing theory
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And we can see magnets that oscillate 500 trillion times a second! Feynman had a fun analogy to a waterstrider walking on the surface of a busy swimming pool
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And over the course of our lives, we forever lose our ability to hear the highest frequencies. Really makes me wonder what it's like to listen to music at age 70
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