Bonus points if there’s a known onomatopoeia to describe the sound.

    • xmunk@sh.itjust.works
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      7 months ago

      Some of it is cosmic background radiation - it’s also machine vibrations, manufacturer defects, power line radiation, and nearby appliances. The more remote and well shielded you are the more likely it’s pure background radiation… but in a big city it’s likely to be local radiation sources. The inverse square law has a big role here.