Apple is the most valuable brand on the planet, making products that everyone wants - but how are its workers treated when the world isn't looking? Panorama goes undercover in China to show what life is like for the workers making the iPhone 6. And it's not just the factories. Reporter Richard Bilton travels to Indonesia to find children working in some of the most dangerous mines in the world. But is the tin they dig out by hand finding its way into Apple's products?
Where are the limits of human technology? And can we somehow avoid them? This is where quantum computers become very interesting.
The global cyberwar is heating up and the stakes are no longer limited to the virtual world of computers. Now, thanks in part to secret documents released by Edward Snowden, the true scale of the National Security Agency's scope and power is coming to light.
This episode reveals the fascinating chain of events that made everyday miracles such as turning on a light or boiling a kettle possible. Michael Mosley, Professor Mark Miodownik and Dr Cassie Newland tell the amazing story of three of the most transformative inventions of all time: the steam engine, the electrical generator and the steam turbine. They explain how these inventions came about by sparks of inventive genius and steady, incremental improvements hammered out in British workshops.