Scientific American·2026-10-24 02:00· 12 d agoFeaturedRecommendation78.32

The Trump administration is considering a ‘heat ray’ weapon for the border—here’s what to know

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The Active Denial System uses millimeter waves to heat people’s skin from as far as a kilometer away

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Source:Scientific American · scientificamerican.com

#Science & technology #Public policy #Health & medicine #International relations #Solutions