National Geographic News, Reporting Your World Daily

Thursday, October 28, 2010

Photo: New Security Scanner Sees Through Clothes, But With Modesty


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A new heat-sensing scanner can detect concealed weapons without revealing a person's identity or intimate anatomical details.

The device creates a map of minute temperature differences. Above, it is shown exposing cool metal and ceramic objects (blue) against warmer body heat (yellow and orange).

Photographs courtesy VTT and NIST (National Institute of Standards and Technology)