Technology continues to break new ground. Mankind now produces all technological products that can see behind the walls, while scientists reveal it, but it can be used with malicious intent. It wouldn’t be unthinkable not to use satellites to slaughter people in wars…so you can play the lead role.

Scientists need to use a wireless network to detect the movements of people behind closed doors or even concrete walls. found that radio signals could be used.

According to the news on the technology page of the British Telegraph newspaper, the system of researchers from the University of Utah, USA, based on radio tomography imaging, is based on measuring the wave mixture between the points where the signals of wireless devices intersect each other. When someone passes the area covered by the wireless device, the device records the change in signal level and transmits this information to the computer.

Researchers underline that this technology would be ideal for use in search and rescue operations after a disaster.