In this episode:
Skyrmions are tiny whirlpools of magnetic spin that some researchers believe have useful properties that could unlock new kinds of computing. However getting skyrmions to perform useful computational tasks has been tricky. Now researchers have developed a method to create and manipulate skyrmions in a way that is compatible with existing computing technology, allowing them to read and write data at a fraction of the energy cost of conventional systems. The team think this shows that skyrmions could be a viable part of the next generation of computers.
Research Article: Chen et al.
News and Views: Magnetic whirlpools offer improved data storage
How robotically-enhanced, live jellyfish could make ocean monitoring cheap and easy, and how collective saliva tests could be a cost-effective way of testing for a serious infant infection.
Research Highlight: These cyborg jellyfish could monitor the changing seas
Research Highlight: Pooling babies’ saliva helps catch grave infection in newborns
Male songbirds often develop elaborate songs to demonstrate their fitness, but many birds only learn a single song and stick with it their entire lives. How female birds judge the fitness between these males has been a long-standing puzzle. Now, using an AI-based system a team has analysed the songs of male zebra finches and shown that some songs have a hidden factor that is imperceptible to humans. Although it’s not clear exactly what this factor is, songs containing it were shown to be harder to learn and more attractive to females. The researchers hope that this AI-based method will allow them to better understand what makes some birdsong more attractive than others.
Research article: Alam et al.
News and Views: Birds convey complex signals in simple songs
How H5N1 avian influenza is threatening penguins on Antarctica, and why farmed snake-meat could be a more environmentally-friendly way to produce protein for food.
Nature News: Bird-flu threat disrupts Antarctic penguin studies
Scientific American: Snake Steak Could Be a Climate-Friendly Source of Protein
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How to battle misinformation with Sander van der Linden
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Audio long read: What Turkey’s earthquake tells us about the science of seismic forecasting
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How to make driverless cars safer — expose them to lots of dangerous drivers
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Nature's Take: How Twitter's changes could affect science
Audio long read: How your first brush with COVID warps your immunity
A twisting microscope that could unlock the secrets of 2D materials
How 'metadevices' could make electronics faster
This mysterious space rock shouldn’t have a ring — but it does
How mummies were prepared: Ancient Egyptian pots spill secrets
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