This is sometimes my example for ‘why paying attention to documentation is important’. I didn’t take the photo myself, a colleague sent it to me years back.

    • @[email protected]OP
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      31 year ago

      Ooh, this is a great idea. I could use a zener diode and a pregnancy test to make a test that reverses the result half the time, depending on electron-tunelling.

    • @NotInTheFace
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      11 year ago

      It’s both negative and invalid. Does that mean positive? Neutral? Indeed a conundrum.