Lift (Season 2 Episode 6 of 6): Hannah Fry examines the technology behind the lift. The Secret Genius of Modern Life airs on BBC Two HD at 1:35 AM, Saturday 27 January. Hannah Fry examines the technology behind the lift
Headphones (Season 2 Episode 5 of 6): The hidden story behind headphones. The Secret Genius of Modern Life airs on BBC Two HD at 2:25 AM, Saturday 20 January. The hidden story behind headphones
Microwave (Season 2 Episode 4 of 6): Hannah Fry investigates the microwave oven. The Secret Genius of Modern Life airs on BBC Two HD at 4:25 AM, Saturday 13 January. Hannah Fry investigates the microwave oven
Smartphone (Season 2 Episode 3 of 6): The technology that goes into the smartphone. The Secret Genius of Modern Life airs on BBC Two HD at 2:45 AM, Thursday 4 January. The technology that goes into the smartphone
Vacuum Cleaner (Season 2 Episode 2 of 6): The technology that goes into the vacuum cleaner. The Secret Genius of Modern Life airs on BBC Two HD at 3:50 AM, Thursday 28 December. The technology that goes into the vacuum cleaner