The secret genius of modern life: season 2.
Episode 1 - 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.
Episode 2 - 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 - 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.
Episode 4 - Hannah Fry discovers the hidden WWII 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.
Episode 5 - Headphones are worn by over 30 million people in the UK. Hannah visits the legendary headphone company Bose to find out how today's tiny earbud tech works and meets the humn testers with 'golden ears'.
Episode 6 - Hannah goes behind the scenes to look at the technology 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.
Available to view online. You will need your college email address and password.