In depth: Change for good: 5 bits of tech that are going to make the world a better place

It goes without saying that we at TechRadar are a forward-thinking bunch. But while we spend much of our time gazing into the crystal ball, not everything that manifests is worth telling grandma about. Sure, we'll tell you that Apple is probably going to improve the camera on the iPhone 7, or that we'll be seeing more than a few 4K TVs at CES this year, but every so often we get to tell you about something that's going to change lives in a meaningful way.Because sometimes you read about somethin