Future Phones ‘May Have See-through Vision’

Smartphone cameras might one day be able to help you see through walls, it has been claimed.
This capability could come from a new kind of computer chip that operates in the part of the radio spectrum, known as the terahertz range.
In this range, wavelengths of radiation are longer than infrared light and shorter than those of high-frequency radio.
Terahertz radiation can penetrate solids in a way similar to X rays, but because it doesn’t carry as much energy, it won”t damage tissue. Terahertz frequencies are also better than X rays at seeing inside less dense materials, such as water or flesh, and a terahertz scanner is able to detect whether an embedded object is made of metal or plastic.

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