Quantum Gravity

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

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

Quantum mechanics and general relativity are two of the most successful theories of science ever, but they don't necessarily fit together. Learn why physicists are trying so hard to discover a quantum theory of gravity, and why it's been such a challenge.

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Melvyn Bragg and guests discuss the Laws of Nature. Since ancient times philosophers and physicists have tried to discover simple underlying principles that control the Universe: In the 6th Century BC Thales declared “Everything is water”, centuries later Aristotle claimed that a ...  Show more

Gravity is everywhere. We and every other thing in the cosmos experience its force at all times no matter how small, no matter how oblivious you might be to its presence - it's there. But for something that causes the falling of a leaf in autumn as well as the collision of superm ...  Show more

Daniel and Kelly talk to Jonathan Oppenheim about his unusual theory of unpredictable gravitySee omnystudio.com/listener for privacy information.