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We know that all the other forces governed by quantum mechanics are transmitted by indivisible particles: photons for the electromagnetic force, which governs light and the basic chemistry of matter; gluons for the strong force, which sticks together protons and neutrons inside atoms; and W and Z bosons for the weak force, which enables certain particles to radioactively decay. If gravity has the same underlying theory as these forces, it should also be carried by its own particle: a graviton. Now researchers, including Claudia Du Rham at Imperial in London, are in the hunt for these mysterious and vanishingly weak particles.
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About New Scientist:
New Scientist was founded in 1956 for “all those interested in scientific discovery and its social consequences”. Today our website, videos, newsletters, app, podcast and print magazine cover the world’s most important, exciting and entertaining science news as well as asking the big-picture questions about life, the universe, and what it means to be human.

New Scientist.
https://www.newscientist.com/

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Check out my course about quantum mechanics on Brilliant! First 30 days are free and 20% off the annual premium subscription when you use our link ➜ https://brilliant.org/sabine.

Correction to the screen text at 05:04: It’s in the range of microgram. What I say is correct, the text isn’t. Sorry about that.

This video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… are one of the most sought-after particles in physics. They could help physicists combine quantum physics with gravity to create a theory of “quantum gravity.” We thought until recently they were for all practical purposes impossible to detect, but now scientists are coming up with some ideas for how graviton-detecting experiments could work for real. Let’s take a look. 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 🖼️ On instagram ➜ / sciencewtg #science #sciencenews #physics #gravity.

Gravitons are one of the most sought-after particles in physics. They could help physicists combine quantum physics with gravity to create a theory of \.

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It has always been interesting and exciting to study quantum physics. One of the most amazing things about it was the idea of quantum transportation, which seemed like something from science fiction. But recent progress has turned this idea from an academic thought into a real-world application, marking a fundamental change in how we think about and communicate.

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He told Newsweek that the unexpected result “upsets the usual interpretation of the nature of the CMB. It essentially means that we do not have solid evidence for a hot big bang. Taking the observed CMB and subtracting this foreground leaves too little for the hot big bang to be real.”

(The “hot big bang” refers to how the universe started in a hot, dense, state and has been cooling and expanding ever since.)

Kroupa added: “This shocking result means that we now need to revisit the very foundations of everything we know about cosmology, gravitation and the evolution of the Universe and how galaxies came to be.”

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TAE’s “Norm” development, for instance, may “[chart] a path for streamlined devices that directly addresses the commercially critical metrics of cost, efficiency, and reliability,” theorized Michl Binderbauer, CEO of TAE Technologies.

“This milestone significantly accelerates TAE’s path to commercial hydrogen-boron fusion that will deliver a safe, clean, and virtually limitless energy source for generations to come,” Binderbauer added.

“Norm” is set to precede TAE’s next reactor prototype, “Copernicus,” which TAE engineers anticipate will demonstrate fusion as a viable energy source before 2030.

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A team of chemists, materials scientists and engineers affiliated with several institutions in China, working with a colleague from Taiwan, has developed a new way to remove uranium from seawater that is much more efficient than other methods. Their paper is published in the journal Nature Sustainability.

The current method for obtaining uranium for use in nuclear power plants is mining it from the ground. Canada, Kazakhstan and Australia are currently the largest producers of uranium, accounting for nearly 70% of . Other countries such as the U.S., China and Russia would like to overcome their reliance on foreign providers of the radioactive element, and have been looking for ways to efficiently extract it from seawater.

The world’s oceans have far more uranium than ground sources, but it is highly dilute, which makes harvesting difficult and expensive. In this new effort, the team working in China has found a way to do it much more efficiently, resulting in lower costs. Notably, China builds more than any other country and would very much like to be able to produce its own uranium.

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As demand surges for batteries that store more energy and last longer—powering electric vehicles, drones, and energy storage systems—a team of South Korean researchers has introduced an approach to overcome a major limitation of conventional lithium-ion batteries (LIBs): unstable interfaces between electrodes and electrolytes.

Most of today’s consumer electronics—such as smartphones and laptops—rely on graphite-based batteries. While graphite offers long-term stability, it falls short in .

Silicon, by contrast, can store nearly 10 times more lithium ions, making it a promising next-generation anode material. However, silicon’s main drawback is its dramatic volume expansion and contraction during charge and discharge, swelling up to three times its original size.

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Imagine developing a finer control knob for artificial intelligence (AI) applications like Google Gemini and OpenAI ChatGPT.

Mikhail Belkin, a professor with UC San Diego’s Halıcıoğlu Data Science Institute (HDSI)—part of the School of Computing, Information and Data Sciences (SCIDS)—has been working with a team that has done just that. Specifically, the researchers have discovered a method that allows for more precise steering and modification of large language models (LLMs)—the powerful AI systems behind tools like Gemini and ChatGPT. Belkin said that this breakthrough could lead to safer, more reliable and more adaptable AI.

The research relies on recent work that has been published in Science and Proceedings of the National Academy of Sciences.

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