Biometric sensors that can be papered on a wall? It would seem so

Metamaterials are being applied to biometrics and the results are likely to include surveillance and ID verification systems that are cheaper, more efficient and stealthier than anything on the market.

Metamaterials are those devised to operate in ways that seem to mock physical laws. Assembled into devices, they typically deal with waves – such as seismic, acoustic and electromagnetic.

Electromagnetic waves are being experimented with in Taiwanese labs to create surveillance systems that are startling in how they operate and …

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