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A comment on Airport scraps 100ml liquid rule with new scanners. Parent comment

Re:Airport scraps 100ml liquid rule with new scanners by Scoundreller on Tuesday April 04, 2023 @03:21AM (#35436240)
Question is how this differentiates between the fluids inside. Shape means little.
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Re:Airport scraps 100ml liquid rule with new scanners by kieranl on Tuesday April 04, 2023 @03:38AM (#35436332)
Most x-ray machines use multi spectral detectors that detect 2 or more x-ray wavelengths. This is used for basic material characterization.
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