The Secret Genius of Modern Life

Hannah Fry takes a look at the bank card. This humble piece of plastic is often taken for granted, but it's the digital key to accessing cash and is packed full of extraordinary technological innovations.

Hannah Fry tucks into the tech behind food delivery apps, which are now used by 24 million people in the UK. Hannah finds out how pizza made us fall in love with the internet.

Hannah Fry delves into the inner workings of virtual assistants like Amazon's Alexa, Google Assistant and Siri, which are now found in almost half of all UK homes.

Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk's electric empire.

Hannah Fry finds out how 1970s car crashes helped us to count our steps, why high-altitude WWII dog-fights led to a crucial health monitor and how fitness trackers are even being used to catch killers.

Hannah Fry visits eBay's authentication centre, where they are waging war against fake high-value trainers. She also discovers how American breakfast waffles transformed our trainer soles.

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 WWI spy craft hidden in the pages of every passport.

Hannah Fry takes a look at the vacuum cleaner. She goes behind the scenes with Dyson to discover how the motor in their latest vacuum spins nine times faster than that of a Formula One race car.

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

Hannah Fry discovers the hidden WWII radar technology that heats up baked beans, and learns the legend of the melted candy bar in an engineer's pocket that kick-started a kitchen revolution.

Headphones are worn by over 30 million people in the UK. Hannah Fry visits legendary headphone honchos Bose to find out how today's modern teeny earbud tech works and meets the human testers with 'golden ears'.

Fry goes behind the scenes to look at the tech behind the lift. Along the way, she finds out how coal mines made lifts safer, gets to grips with a piece of medieval siege technology, and discovers how a PR stunt changed the modern skyline.

Hannah explores the Air Fryer's surprising history, from its accidental creation to a WWII pilot's cold dinner.

Hannah hits the production line with appliance giant Bosch to find the lifeblood at the heart of every fridge and gets a lesson in carrot droop.

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.

The smart doorbell is a top tech success. Hannah visits Ring in LA to explore its history, from a tinkerer, Soviet spy tech, and a student's thirst to security staple.

Hannah Fry uncovers the secrets behind the miraculous technologies of the modern world, revealing the mind-blowing stories behind their invention.