alt Hacker NewsFerrous metals aren't required for any modern security-screening metal detectors: these materials are still highly electrically conductive, and therefore easily-detectable eddy currents are still inducible.
Ferrous metals aren't required for any modern security-screening metal detectors: these materials are still highly electrically conductive, and therefore easily-detectable eddy currents are still inducible.
Oh, that's right! I remember reading somewhere about this a few years back. Might have even been here on HN.
For some reason I hear "metal detector" and my brain goes right to magnetism.