The Knox County Sheriff’s Office is using 3D scan technology to document crime scenes. Investigators and crime scene ...

Fingerprint scanners are an essential feature in the smartphone market. Here's how they work and what you need to know about them.

The Knox County Sheriff’s Office is using 3D scan technology to document crime scenes. Investigators and crime scene ...

How it works A millimetre-wave scanner uses antenna arrays to transmit and receive high-frequency radio waves as they circle a subject -- dense materials such as metal will reflect more energy ...

How the FARO scanner works The scanner takes three-dimensional images of spaces that can then be reconstructed electronically. The scanners have a multitude of uses — including for construction ...

If you've used an Android phone recently, you've probably come across the in-screen fingerprint scanner. But how does it work? This, friends, is how.

The scanner can simply check those well-known places and then apply the same pattern-matching techniques that are used for viruses. Present-day scanners also look for known vectors for worms.