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How light-based computers could cut AI’s energy needs
Computer components based on specialised LEDs could reduce the energy consumption of power hungry AI systems, according to new research. AI chips with components that compute using light can run more efficiently than those using digital electronics, but these light-based systems typically use lasers that can be bulky and difficult to control. To overcome these obstacles, a team has developed a way to replace these lasers with LEDs, which are cheaper and more efficient to run. Although only a proof of concept, they demonstrate that their system can perform some tasks as well as laser-based computers.
Research Article: Dong et al.
News and Views: Cheap light sources could make AI more energy efficient
10:36 Research Highlights
The genes that make roses smell so sweet, and how blocking inflammation could reduce heart injury after a stroke.
Research Highlight: How the rose got its iconic fragrance
Research Highlight: Strokes can damage the heart — but reining in the immune system might help
13:02 What researchers know about H5N1 influenza in cows
The highly-pathogenic avian influenza H5N1 was first identified in US cattle in March 2024 and has been detected in multiple herds across the country. We round up what researchers currently know about this spread, what can be done to prevent it, and the risks this outbreak may pose to humans.
Nature News: Can H5N1 spread through cow sneezes? Experiment offers clues
Nature News: Huge amounts of bird-flu virus found in raw milk of infected cows
Nature News: Could bird flu in cows lead to a human outbreak? Slow response worries scientists
Research article: Eisfeld et al.
22:38 Briefing Chat
NASA’s Perseverance rover finds a Martian rock containing features associated with fossilized microbial life, and how metallic nodules on the ocean floor could be the source of mysterious ‘dark oxygen’
Space.com: NASA's Perseverance Mars rover finds possible signs of ancient Red Planet life
Nature News: Mystery oxygen source discovered on the sea floor — bewildering scientists
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The world is closer to a major conservation target than scientists thought
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Briefing Chat: Top researchers are being misled by sham academic societies
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‘Learning about physics changed my life’: author Hernan Diaz on his new novel Ply
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18:01|High-speed footage of takeoffs reveal that the butterfly markings mislead the eye, making them harder to catch.00:45 Butterflies in flight create confusing motion cues that baffle birdsResearch Article: Hancock et al.14:09 Research HighlightsResearch Article: Menezes and PodosResearch Highlight: Huge hoard of metal bars hints at vast Iron Age tradeSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
Briefing Chat: Why scientists made papyrus scrolls, then burnt them
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