AI catching people sneaking around with undeclared swimming pools. 5G radiation risks answered once and for all. Superheated dishwasher steam does the job on bacteria in 25 seconds. Is that a phone charging cable – or a stealthy hacking tool? Twitter’s newest feature may make tweeting less intimidating. A plastic hotel key is so yesterday – use your phone instead. Mood rings were a fun gimmick but wearables can now detect stress levels. Long focal length cameras may no longer need a long lens. Power poles and light poles being used to charge EVs.