Episode

Great Moments In Science - with Dr Karl Kruszelnicki

ABC Radio National

Science & Medicine

From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.

Website

Wi-fi is watching us

October 4th, 2016

Episode 120 of 126 episodes

Many of us access the internet, and the world wide web, via wi-fi. Wi-fi lets us into a fabulous world of shared knowledge and social interaction. On the flip side, it seems that wi-fi can look at us, and perhaps even spy on us. It can even recognize moving humans on the other side of a wall. And this happens by examining not the content of the wi-fi signal, but its strength and timing.

Featured Podcast

Listen