Teen codes app for Alzheimer's patients and other news
BBC Click's Jen Copestake looks at some of the best technology stories of the week including:
Police in China use sunglasses fitted with facial recognition technology to identify suspected criminals
Elon Musk launches his Falcon Heavy rocket into space
A teenager creates an app to help people with Alzheimer's disease remember their loved ones
See more at Click's website and @BBCClick, external.