The Secret Genius of Modern Life — Season 3
About this season
Hannah Fry uncovers the secrets behind the miraculous technologies of the modern world, revealing the mind-blowing stories behind their invention.
Episodes (5)
1. Air Fryer
8.0Aired 2 April 2025 • 58 min
Hannah takes a look at the air fryer – a device that is rapidly taking over people's kitchens, cooking up everything from bread rolls to baked Alaska and almost making ovens obsolete.
2. Fridge
6.0Aired 9 April 2025 • 59 min
Hannah hits the production line with appliance giants Bosch to find the lifeblood at the heart of every fridge and gets a lesson in carrot droop.
3. Rollercoaster
6.0Aired 16 April 2025 • 59 min
Hanna uncovers the wild origins of the modern-day rollercoaster and gets the inside story on the UK’s newest, tallest and fastest coaster – Thorpe Park's Hyperia.
4. Doorbell
6.0Aired 23 April 2025 • 59 min
The rise of the smart doorbell is one of the great tech success stories of the 21st century. Hannah heads to Los Angeles to take a deep dive into doorbell history and talk to market leaders Ring.
5. Motorway
5.0Aired 30 April 2025 • 58 min
Hannah takes a drive to the National Highways control centre for the UK’s busiest motorway to meet the team that keep the motorways running 24/7.