Tiny radar biometric sensor could identify people by their heartbeat — researchers

A seemingly impossibly small radar sensor capable of detecting biometrics including heart beats has been created by researchers at the University of California, Davis.

The sensor is described as being the size of a sesame seed and funded by the Foundation for Food & Agriculture Research.

While that seems random, the battery-powered sensor, which was built in the school's Electrical and Computer Engineering Department, is so sensitive, it can hear a small leaf thinning as it runs out of water. …

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