Professor Stephen Hawking presents a global exploration of the scientific breakthroughs that are transforming our lives in the 21st century. br br With the help of some of the world's leading scientific figures - including Sir David Attenborough, Richard Dawkins, Aarathi Prasad, Lord Winston and Maggie Aderin-Pocock - this five-part series reveals how science is striving for humankind's next leap forward. br Machines:The team showcase breakthroughs in technology and engineering that are creating a new generation of machines. Mark Evans fuses his brain with a computer in Switzerland to test a new breed of machine. Kathy Sykes hits the streets of San Francisco to have the ride of her life as she experiences the future of transport in a driverless car.