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  • 2023-11-08T20:00:00Z on BBC Two
  • 59m
  • 5h 49m (6 episodes)
  • United Kingdom
  • English
  • Documentary
Hannah Fry uncovers the secrets behind the miraculous technologies of the modern world, revealing the mind-blowing stories behind their invention.

6 episodes

Season Premiere

2023-11-08T20:00:00Z

2x01 Passport

Season Premiere

2x01 Passport

  • 2023-11-08T20:00:00Z59m

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. She reveals the World War I spy craft hidden in the pages of every passport and takes a look into how modern ID checks were shaped by the hunt for a 19th-century French serial killer and 1970s psychedelic art.

2023-11-22T20:00:00Z

2x02 Vacuum Cleaner

2x02 Vacuum Cleaner

  • 2023-11-22T20:00:00Z58m

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.

She finds out why a wheezy janitor in the 1900s took inspiration from a sewing machine to create the first popular, portable vacuum. And she comes face to face with a colony of creepy crawlies whose job is to help us fight the filth.

2023-11-29T20:00:00Z

2x03 Smartphone

2x03 Smartphone

  • 2023-11-29T20:00:00Z59m

With over six billion of them across the planet, smartphones have changed the modern world. With rare access to electronics giant Samsung, Hannah uncovers the technological game-changers that have made the smartphone a reality.

She finds out how 1940s comic book hero Dick Tracy inspired the first mobile phone, discovers why the invention of the digital camera led to one of the biggest commercial blunders of all time, and reveals what a 2010 South Korean sausage frenzy can tell us about touchscreens.

2023-12-06T20:00:00Z

2x04 Microwave

2x04 Microwave

  • 2023-12-06T20:00:00Z57m

Hannah Fry discovers the hidden WW2 radar technology that heats up baked beans, learns the legend of the melted candy bar in an engineer’s pocket that kick-started a kitchen revolution, and puts her life on the line to demonstrate why microwaves zap food but not people!

2023-12-07T20:00:00Z

2x05 Headphones

2x05 Headphones

  • 2023-12-07T20:00:00Z58m

Headphones: these marvels of miniaturisation are worn by 30 million people in the UK. Hannah Fry visits Bose to find out how the teeny earbud tech works and meets the human testers with ‘golden ears’.

2023-12-14T20:00:00Z

2x06 Lift

2x06 Lift

  • 2023-12-14T20:00:00Z58m

Hannah goes behind the scenes to look at the technology behind the lift, entering a 246m high lift shaft to test everything from the brakes to her own fear of heights.

Along the way, she finds out how rickety 19th-century coal mines made lifts safer, gets to grips with a piece of medieval siege technology still used in lifts today, and discovers how an 1850s PR stunt changed the modern skyline forever.

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