Back pain is one of the leading causes of disability in the world, but an AI-powered app is being used to help patients in the UK to manage their symptoms. But how does it measure up?

Computers and smartphones might be where most writing is done these days, but typewriters still have work to do in the US.

In Japan, a smelly waste product is being reimagined as a potential clean fuel of the future that is powering cars and tractors.

In Tulsi, a village in central India, social media has sparked an economic and social revolution. It's a microcosm of YouTube's effect on the world.

Major oil spills can be catastrophic for seabirds and marine life. Nearly 15 years on from the biggest marine spill in history, are we any better at cleaning up oil at sea?

BBC Click explores the latest technology being trialled in Australia to preserve coral at the Great Barrier Reef.

Cause is usually followed by effect, but in the quantum world, time's sequencing is not so straightforward.

Rorschach tests play with the human imagination and our mind's ability to impart meaning onto the world around us – but what does AI see in them?