A revolutionary technology - so why did its inventor struggle to make money from it?
Spinning wheels, flashing lights, and the business of addiction
What chess reveals about the power of computers
Are things only worth what people are willing to pay for them?
The benefits they bring can be huge - but so can the problems
Did colourful flowers really cause a financial bubble?
Selling a product that some people found too embarrassing to mention
How miniature greenhouses were a powerful tool for British colonisers
How a milkshake-mixer salesman turned a burger restaurant into a global giant
How do we feel about being watched?
How should we treat our elders?
Why does Father Christmas wear red and white?
A device that changed women's lives was designed to make a man very rich
The machine that turned data into money
An incentive for good performance, or another way to boost executives' pay?
What's the best way to get people to give to charity?
A system that solved big problems is now facing its greatest challenge
What does the fashion industry owe to an 18th-century potter?
A vital aid for many, but billions don't know they need them
How did an invention that was never built help make the modern world?
What would happen if GPS stopped working?
Why did a machine for making cigarettes transform the advertising industry?
How much does it cost to outlaw something?
The big metal box that made the internet possible
The surprising lessons lurking under the lid
The manufacturing revolution that started with a gun
How did the price of oil become so important?
Can a computer convince you that it's human?
How important is solar power to the future of the planet?
A toxic plant that sheds light on hidden social forces