Tech expert Steve Caplin on the British scientists who have been gluing antennae onto bees (and what it might mean for driverless cars), the wearable bracelet that jams Alexa's microphone, the lithium batteries that can't explode, the world's first immersive TV drama, an emoji jacket for cyclists, IKEA's 3D-printed handles and legs and a crowd-funded wearable that lets you choose your mood.
