The Nature Podcast brings you the best stories from the world of science each week. We cover everything from astronomy to zoology, highlighting the most excitin...
From viral variants to devastating storms, how names shape the public's reaction to science
In episode 2 of 'What's in a name' we look how choosing names can help, or hinder, attempts to communicate important messages.Categorizing things is central to science. And there are dozens of systems scientists have created to name everything from the trenches on the sea bed to the stars in the sky.But names have consequences. In our series What’s in a name we explore naming in science and how names impact the world — whether the system of naming species remains in step with society, how the names of diseases can create stigma, or even how the names of scientific concepts can drive the direction of research itself.In episode two, we're looking at how the names chosen by scientists help, or hinder, communication with the public.Well chosen names can quickly convey scientific concepts or health messages — in emergency situations they can even save lives. We'll hear how the systems of naming tropical storms and Covid-19 variants came to be, and how they took different approaches to achieve the same outcome.We'll also consider the language used to talk about climate change, and how the ways of describing it have been used to deliberately introduce uncertainty and confusion.Listen to the first episode Should offensive species names be changed? The organisms that honour dictators, racists and criminalsFor a list of sources please visit the the episode's webpageMusic creditsPremiumaudio/Pond5Richard Smithson/Triple Scoop Music/Getty Images Hosted on Acast. See acast.com/privacy for more information.
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Kids' real-world arithmetic skills don't transfer to the classroom
In this episode:00:45 How arithmetic skills don’t transfer between applied and academic environmentsMathematics skills learnt in real-world situations may not translate to the classroom and vice versa, according to a new study. A team surveyed children in India who work in markets, to see whether the skills they learnt there transferred to the classroom. While proficient at solving market-based arithmetic problems, they struggled to solve problems typically used in schools. The reverse was seen for children enrolled in schools with no market-selling experience. The authors hope this finding could help adjust teaching curricula and bridge the gap between intuitive and formal maths.Research Article: Banerjee et al.12:38 Research HighlightsWolverine populations rebound in Sweden and Norway, and why wobbly arrows launch faster than rigid ones.Research Highlight: Who’s the new furry neighbour? It might be a wolverineResearch Highlight: How a wobbly arrow can achieve superpropulsion14:59 The unexpected movements seen in super-dense crowdsA study has revealed that when packed crowds reach a certain density, large groups of people suddenly start to move in circular patterns — a finding that could be used to identify dangerous overcrowding. By assessing footage of the densely-packed San Fermín festival, a team observed this spontaneous phenomenon, and modelled the physics underlying it. Studying the movements of giant crowds has been difficult, and the team hope this work could help event organisers to identify and respond to situations where people could get hurt.Research Article: Gu et al.News and Views: Crowds start to spin when their densities hit a thresholdSound effects:Crowd Cheering - Ambience by GregorQuendel via CC BY 4.0Cupinzano sounds by Europa Press - Footage News via Getty Images24:00 Briefing ChatAn update on the US National Science Foundation’s scrutinizing of grants to comply with President Trump’s directives, and why scratching an itch may have unexpected antibacterial properties.Nature: Exclusive: how NSF is scouring research grants for violations of Trump’s ordersNature: Why it feels good to scratch that itch: the immune benefits of scratchingSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.
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The AI revolution is running out of data. What can researchers do?
The explosive improvement in artificial intelligence (AI) technology has largely been driven by making neural networks bigger and training them on more data. But experts suggest that the developers of these systems may soon run out of data to train their models. As a result, teams are taking new approaches, such as searching for other unconventional data sources, or generating new data to train their AIs.This is an audio version of our Feature: The AI revolution is running out of data. What can researchers do? Hosted on Acast. See acast.com/privacy for more information.
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Asteroid Bennu contains building blocks of life
In this episode:00:46 Evidence of ancient brine reveals Bennu’s watery pastAnalysis of samples taken from the asteroid Bennu reveal the presence of organic compounds important for life, and that its parent asteroid likely contained salty, subsurface water. Collected by NASA’s OSIRIS-REx mission, these rocks and dust particles give insights into the chemistry of the early Solar System, and suggest that brines may have been an important place where pre-biotic molecules were formed. As brines are found throughout the Solar System, this finding raises questions about whether similar molecules will be found in places like Jupiter’s moon Europa.Research Article: McCoy et al.Research Article: Glavin et al.News: Asteroid fragments upend theory of how life on Earth bloomed14:22 Research HighlightsHow seaweed farms could capture carbon, and why chimps follow each other to the bathroom.Research Highlight: Seaweed farms dish up climate benefitsResearch Highlight: All together now: chimps engage in contagious peeing16:31 How maize may have supported a civilizationResearchers have found evidence of intensive maize agriculture that could help explain how a mysterious South American society produced enough food to fuel a labour-force big enough to build enormous earth structures. It appears that the Casarabe people, who lived in the Amazon Basin around 500-1400 AD, restructured the landscape to create water conserving infrastructure that allowed for year-round production of maize. While this work provides new insights into how the Casarabe may have established a complex monument-building culture, these people vanished around 600 years ago, and many questions remain about their lives.Research Article: Lombardo et al.Research Article: Hermenegildo et al.25:52 DeepSeek R1 wows scientistsA new AI model from a Chinese company, DeepSeek, rivals the abilities of OpenAI’s o1 — a state-of-the art ‘reasoning’ model — at a fraction of the cost. The release of DeepSeek has thrilled researchers, asked questions about American AI dominance in the area, and spooked stock markets. We discuss why this large language model has sent shockwaves around the world and what it means for the future of AI.News: China’s cheap, open AI model DeepSeek thrills scientists Hosted on Acast. See acast.com/privacy for more information.
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What's the best way to become a professor? The answer depends on where you are
00:56 How the paths to professorship varyA huge analysis of hiring practices has revealed that criteria to get a promotion to full professorship is hugely variable around the world. The authors suggest that this variability results in researchers from countries that value one type of metric being locked out of professor positions in others. They hope that the database of hiring practices created in this study could help institutions adjust their hiring policies to create a more diverse science workforce.Research Article: Lim et al.News: Want to become a professor? Here’s how hiring criteria differ by country09:36 Research HighlightsLasers reveal hidden tattoos on ancient mummified-skin, and a new pill that cuts flu symptoms and viral levels in the body.Research Highlight: Hidden tattoos on mummy skin emerge under a laser’s lightResearch Highlight: Got flu? Promising drug shortens symptoms12:13 Cancer cells’ broken mitochondria could poison immune cellsResearchers have shown that cancer cells can slip their dysfunctional mitochondria into T cells, limiting the immune system’s cancer-fighting capabilities. Cancer cells are known to steal healthy mitochondria from immune cells to help tumours survive and thrive. Now, researchers have shown mitochondria can move in the opposite direction too, with the donor T cells showing signs of various stress responses that make them less effective when inside a tumour. The team showed that blocking this transfer limited this effect, and hopes that this mechanism could offer a new avenue for boosting the immune system’s response to cancer.Research Article: Ikeda et al.News & Views: Mitochondrial swap from cancer to immune cells thwarts anti-tumour defences21:12 Science and the Gaza conflictNoah Baker and Ehsan Masood turn to the war in Gaza, and discuss what comes next for science as a ceasefire comes into force.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.
The Nature Podcast brings you the best stories from the world of science each week. We cover everything from astronomy to zoology, highlighting the most exciting research from each issue of the Nature journal. We meet the scientists behind the results and provide in-depth analysis from Nature's journalists and editors. Hosted on Acast. See acast.com/privacy for more information.