Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Everest is high, by two kilometres. Trenches like Mariana form when one tectonic pl ...Show more
The Evolution of Lungs
Melvyn Bragg and guests discuss the evolution of lungs and of the first breaths, which can be traced back 400 million years to when animal life spread from rock pools and swamps onto land, as some fish found an evolutionary advantage in getting their oxygen from air rather than w ...Show more
In ancient Korea, ingenious underfloor heating is invented. A king in dire financial straits institutes a controversial tax on fireplaces. Young boys are sent up treacherous chimneys in Victorian England. And the Great Smog envelops London, with deadly consequences… A Noiser prod ...Show more
Isn’t it mind-blowing that a thermos flask can keep your drink hot or cold for 8 hours, despite what’s happening in the climate around you? A real sip of relief really/ But who invented this incredibly helpful concept of keeping hot things hot and cold things cold? Enter the trou ...Show more
Last summer saw intense heatwaves across the world. And already this year, global air, surface and sea temperatures have hit the highest levels on record. China, India and the US are currently experiencing heatwaves. In June, the UK’s Met Office released a health warning because ...Show more
Melvyn Bragg and guests discuss the Second Law of Thermodynamics which can be very simply stated like this: "Energy spontaneously tends to flow from being concentrated in one place to becoming diffused and spread out". It was first formulated – derived from ideas first put forwar ...Show more