Sorry I just learned seismometers work by the frame with the rotating drum and the sheet of paper and all being shaken by the earthquake, while the stylus and the pen are heavy enough to *not* get shaken right away, and it's like the whole world just reversed on me.
(Yes yes working seismometers are now digital devices but they work on the same principle, the sensor stays still while the thing holding it shakes.)
@Austin_Dern Yep! there's all kinds of weird stuff in sensors--wait until you learn how gravitometers work
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@Gulfie @Austin_Dern MEMS is wild stuff in general
oh also SAW filters!
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