The man who knows tech stuff, Steve Caplin, discusses a household robot with a terrifying featureless face and the first autonomous dentist, apparently much faster than the real thing. There's a mosquito tracker, an AI-powered golf trolley, a necklace to jog your memory and a mobile factory that can make bricks from rubble, which is being sent to Ukraine. To solve the problem of moths in museums and stately homes, Rentokil suggests parasitc wasps while a pill could stop cows producing methane-laden burps. And do men drive more riskily if the voice on their satnav is female?