Steve Caplin digs up the latest from the world of tech. There's a Segway-style two-wheeled wheelchair which rises to the upright position, electric all-terrain skis, a prototype car whose 90-degree-turning wheels enable perfect parking, binoculars that tell you what bird or animal you are looking at, a Stylophone Theremin almost as good as the real thing, a crash-test-dummy hedgehog to train lawnmowers to recognise them, an Elon Musk robot video that didn't quite show what it claimed, a drone disguised as a eagle, the problem of cars getting wider, a Nikon camera for pregnant cows and a new way of choosing wines.
