New Scientist Weekly

By: New Scientist
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  • Summary

  • A news podcast for the instatiably curious by the world's most popular weekly science magazine. Everything from the latest science and technology news to the big-picture questions about life, the universe and what it means to be human. For more visit newscientist.com/podcasts Hosted on Acast. See acast.com/privacy for more information.
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Episodes
  • Why chimps are still in the Stone Age and humans are in the Space Age

    Why chimps are still in the Stone Age and humans are in the Space Age
    Nov 22 2024
    Episode 277 Chimps are an intelligent species, capable of using tools and developing culture - so why have humans surpassed them to such a huge extent? How is it that we are busy exploring space while chimps remain stuck in the Stone Age? It’s long been thought it’s because their culture doesn’t evolve cumulatively, but that assumption has just been challenged. Hear from Cassandra Gunasekaram, the lead author of a paper that shows chimp culture develops in a more complex way than we realised. We also hear from primatologists Andrew Whiten from the University of St Andrews and Andrea Migliano of the University of Zurich. How often do you check the calories of your meal, before ordering at a restaurant? In 2020 in the UK it became mandatory for many restaurants to print calories on their menus, as part of an anti-obesity campaign - the question is, has it been effective or a complete waste of time? We dig into new research and the results may surprise you. We also explore why 85 per cent of overweight or obese people who lose a significant amount of weight end up putting it all back on again within a year. In a Black Mirror-like development, computer scientists have managed to create simulated replicas of 1000 real people. These digital twins were created using the model behind ChatGPT and can accurately simulate their personalities. The method is surprisingly simple to recreate - so should we be worried? To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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    36 mins
  • Weekly: COP29: Are UN climate summits failing us and our planet?

    Weekly: COP29: Are UN climate summits failing us and our planet?
    Nov 15 2024
    Episode 276 Are the COP climate summits doing enough to help us avoid the most devastating impacts of climate change, or are they not fit for purpose, and designed to fail? COP29 is underway in petrostate Azerbaijan, headed by a CEO who was secretly filmed making oil and gas deals. Despite this, the team finds reason for optimism. They also hear from climate philosopher and activist Rupert Read, who runs the Climate Majority Project. He argues the COP process was designed to fail, that 1.5 degrees is dead and that adaptation - not mitigation - is the way to go. What do you think? Bird migration is an extraordinary feat of evolution - but how exactly do they do it? We know the Earth’s magnetic field has something to do with it, but we’ve only just discovered the astonishing level of detail birds are able to get from it. Raising questions about bird intelligence, the team also hears how birds evolved from dinosaurs. Gophers have an incredible capacity to shape their landscape. Gophers are small, burrowing rodents with long front teeth. And a decades-long study has shown that just one day of work by a gopher can completely revitalise soil in an area, changing its microbial diversity and preventing disease. Gopher productivity surely puts humans to shame. Hosts Rowan Hooper and Penny Sarchet discuss with guests Madeleine Cuff and Sophie Bushwick. To read more about these stories, visit https://www.newscientist.com/ Learn about the Climate Majority Project here. Find Rupert Read’s book here. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    31 mins
  • The origins of writing revealed; world’s largest (and oldest?) tree

    The origins of writing revealed; world’s largest (and oldest?) tree
    Nov 8 2024
    Episode 275 The origins of the world’s oldest known writing system are being uncovered. Cuneiform was invented around 3200 BC in ancient Mesopotamia, but before it came a much simpler form of writing called proto-cuneiform. Researchers are now shedding light on how writing began along with the cultural factors that spurred on its invention. Just as the rather disappointing COP16 biodiversity conference comes to a close, another COP is nearly upon us. The famous climate conference is in its 29th year and is taking place in Azerbaijan. It’s fair to say the stakes are extremely high. With global emissions cuts still not happening fast enough, the existence of some countries hanging in the balance and Donald Trump returning to the White House, can COP29 move the needle? Pando, a quaking aspen in Utah, is the world’s largest tree – and it’s very, very old. Until now its exact age has been hard to pinpoint, but researchers have now found it is among the oldest organisms on the planet, alive during the time of the woolly mammoth. But just how old is it? Did you know vampire bats can… run? And they’re pretty fast too. Researchers stuck some of these bats on treadmills to learn about their unusual diets. How exactly do they survive only eating fresh blood? Hosts Penny Sarchet and Timothy Revell discuss with guests Michael Marshall, Madeleine Cuff, Rowan Hooper, James Woodford and Matthew Sparkes. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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    34 mins

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