Device transmits radio waves with almost no power—without violating the laws of physics

https://techxplore.com/news/2023-01-device-transmits-radio-powerwithout-violating.html

"wirelessly transmit information simply by opening and closing a switch... random thermal noise, present in all electrically conductive materials because of heat-driven motion of electrons, takes place of power signal driving antenna emission... receiver doesn't have constraints on energy use and consumes substantial power, up to 2 watts... sensors for smart agriculture, electronics implanted in body that never need battery changes, better contactless credit cards and new ways for satellites communication"