Hannah Fry uncovers the secrets behind the miraculous technologies of the modern world,revealing the mind blowing stories behind their invention.　　Episode 1: Passport　　Hannah gains access to a top-secret site where anonymous staff and the latest tech work to make the British passport one of the most secure documents on the planet.　　Episode 2: Vacuum Cleaner　　Hannah Fry reveals the incredible tales behind the development of the contemporary world's marvelous technology and unearths their mysteries. Hannah takes a look at the vacuum cleaner, going behind the scenes with Dyson and discovering how the motor in their latest vacuum spins nine times faster than that of a Formula One race car.　　Episode 3: Smartphone　　With over six billion of them across the planet, smartphones have changed the m...