Sometimes low-tech is a cooler solution than high-tech.

This sensor device detects if your package was handled roughly during transport: no electronics, just clever engineering.

@polychrome My favorite example of this kind of thing is the flush toilet. I remember when I was a kid the power went out and I was surprised when my parents told me the toilet would still flush. If someone were to invent the toilet today it'd definitely require electricity

Another one is the mechanism that makes the gas pump shut off when your tank is full, which is also non-electric - only because it became necessary before reliable sensors for that kind of thing were invented

@socalledunitedstates @polychrome I mean… also electric sensors would be a bad idea in a tank filled with a highly flammable substance.

@slightlyflightyone @socalledunitedstates @polychrome the fuel pump is in the bottom of the gas immersed in it

There is no oxygen there and there is a lot of cool liquid do take heat

A short is only dangerous within environments with a specific range of stoichiometries

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