In his latest look at technology, Steve Caplin marks 50 years of the microchip. Uber is about to reach its 1 billionth trip in the UK, while Tesla's app locked owners out of their cars. There's an LED-lit zebra crossing, Adele putting an end to album-shuffling on Spotify, which has added lyrics to its songs, 8 million of them. There's crowd-funding for a gizmo that cancels out spurious noise when you're working at home and the Japanese are using discarded adult nappies to heat public baths.
