• encrust9870@lemmy.world
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    1 day ago

    When I found out they had lead last year, I went to work with the cup to confirm. This is a handheld XRF, which depends on the specific spacing of electrons in atoms to determine the identity. Not much to it other than point and shoot! (with shielding)

    • SkyeStarfall
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      1 day ago

      Modern tools are fascinating, the way you described it sounds so absurdly high tech