The climate's in a fix, but can we really fix it with geoengineering - large-scale tinkering with carbon emissions, weather, and the sky?

The hovercraft was an iconic British invention from the 1950s; now we barely hear about it at all. How exactly did it work... and why did it fall out of favour?

From Blaise Pascal and Charles Babbage to Konrad Zuse, Alan Turing, and Steve Jobs... join us on a 2,500-year journey through mechanical calculators (cogs), relay-driven early computers (clicks), and modern microprocessors (chips) as we explore the fascinating history of computers!

You've probably heard the hype about memory foam, widely used in mattresses and cushions, but what's the science behind it and how does it really work?

You've probably heard of graphene, but what is it... exactly? What's so good about it... and will this simple new kind of carbon power out future?

Pagers have been in the news recently for all the wrong reasons. Can you remember what they were and exactly how they worked?

Will fracking save our skins by helping wean us off coal... or push us ever closer to a climate catastrophe? In this episode, we find out how it works and take a balanced look at the arguments for and against.

With crafty building design, you can heat your home with plentiful, free energy from the Sun. It's called passive solar energy - and here's how it works!