New Wifi Tech Can See Through Walls And Map The Inside Of A Building In “20 To 30 Seconds”

New Wifi Tech Can See Through Walls And Map The Inside Of A Building In “20 To 30 Seconds”

"Most of us don’t pay much attention to the WiFi routers in our homes. 
It’s an innocuous technology that we all take for granted, and we don’t really think about unless it’s not working properly. 
However, WiFi has a unique property that might make you reconsider a land line.

Like many frequencies on the electromagnetic spectrum, it can penetrate walls, which is what makes WiFi such a good signal for connecting our electronic devices to the internet. 
But unlike most signals, WiFi can also be used to map every object in your home from afar. 
That’s because some of the signal will reflect off of objects rather than passing through them. 
This property has led to the creation of devices that can receive those bouncing signals, and allow the user to effectively see through walls.

This technology has been around for a few years, but was pretty rudimentary. 
Recently researchers in Germany have taken it a whole new level..."
Read on!