Physics World

Physics World

@physicsworld.bsky.social

News, views and information for the global physics community. physicsworld.com

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Having recently given a keynote talk to high-flying executives and tech leaders entitled “How to tame the AI wild west”, Honor Powrie decided to look for concrete examples of how AI is not just bad or ugly but actually good. Find out what she discovered. 🧪⚛️ physicsworld.com/a/genai-can-...

physicsworld.comGenAI: can we get its good side to outweigh the bad and the ugly? – Physics WorldHonor Powrie reflects on what impact AI might have in the future

The human genome doesn’t seem to mind being in zero-gravity environments, and in some cases, the mitochondria that produce energy for cells actually benefit from spending time outside the Earth’s magnetic field. 🧪⚛️ physicsworld.com/a/earths-gra...

physicsworld.comEarth's gravity and magnetism have unexpected effects on the human genome and mitochondria – Physics WorldFindings could have implications for space travel and for treating neurodegenerative diseases

A new hybrid optical-neural system can detect deepfake videos with up to 97.8% accuracy. The technique can simultaneously process 15 or more independent video streams and is less energy-hungry than existing methods with similar levels of performance. 🧪⚛️💡 physicsworld.com/a/to-detect-...

physicsworld.comTo detect deepfake videos, researchers turn to the physics of light – Physics WorldNew technique claims 97.8% accuracy and uses less energy than digital neural networks with similar performance

Real-world active matter systems can be hard to model mathematically. Physicists sometimes study simpler “toy” systems instead, but in this case they went a step further, building an active matter system from literal toys called Hexbug nanos or "bristlebots" physicsworld.com/a/chiral-bri... 🧪⚛️

physicsworld.comChiral bristlebot toys shed light on transport dynamics in active matter systems – Physics WorldLeaning in to the natural “handedness” of vibrating bots revealed “qualitatively new phenomena”, say physicists

A new phase of solid superionic ice has been created for the first time in the laboratory. The demonstration could help us better understand the structure of ice giant planets like Uranus & Neptune, which may harbour this form of ice deep within their interiors. physicsworld.com/a/new-type-o... 🧪⚛️🔭

physicsworld.comNew type of superionic water ice observed for the first time – Physics WorldHexagonal close-packed phase could exist deep within the planets Uranus and Neptune, contributing to their peculiar magnetic fields

How fast can a refrigerator cool down a bottle of beer? The answer depends on various details of the system, but the minimum wait time does not. Instead, it’s #quantum mechanics that imposes a limit on how fast something can thermalize to a particular temperature. 🧪⚛️ physicsworld.com/a/your-beer-...

physicsworld.comYour beer can only cool so fast. Blame quantum mechanics – Physics WorldNew study places a quantum limit on how fast a system can reach a state of thermal equilibrium

In the 1980s, scientists measured quantized jumps in the energy of ions. In the 2000s, it was photons’ turn. Now researchers @stanford.edu report that phonons – mechanical vibrations such as those that carry sound – also display this quantum behaviour. 🧪⚛️ physicsworld.com/a/sound-wave...

physicsworld.comSound waves come in quantum jumps – Physics WorldFirst observation of fundamental quantization in mechanical vibrations could have applications in quantum error correction and protein diagnostics

In a clinical trial first, an international research team has demonstrated that optogenetic therapy is safe to use and shows potential for restoring visual function in patients with blindness due to the disorder retinitis pigmentosa. 🧪⚛️ physicsworld.com/a/optogeneti...

physicsworld.comOptogenetic therapy shows promise for vision restoration – Physics WorldResearchers report encouraging findings from the first clinical cohort of blind people treated with optogenetic therapy

A new study showing how tumour cells behave when surrounded by a disordered microenvironment could help cancer researchers by providing a biophysics model describing how cancers spread within the human body. 🧪⚛️ physicsworld.com/a/disordered...

physicsworld.comDisordered environments around tumour cells can promote cancer spread – Physics WorldA biophysics model describing how cancers spread within the human body could help researchers developing new cancer therapies

Astronomers have discovered the fastest-known star in the Milky Way zooming around Sagittarius A* in an extremely close orbit. Observations of this star, known as S301, could shed new light on the spin of the supermassive black hole at the centre of our galaxy. 🧪⚛️ physicsworld.com/a/fastest-st...

physicsworld.comFastest star in the Milky Way feels the rotation of our central black hole – Physics WorldThe Milky Way’s massive black hole is rapidly rotating, and a star in an unprecedentedly close orbit could help measure its spin

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there are observable oscillation in nobel prize-yness of neutrinos, empirical period is roughly 10 years. This suggests that neutrino research is not a nobel eigenstate

Physics World@physicsworld.bsky.social

The impressive list of #NobelPrizes in physics related to neutrinos 🧪⚛️: 1988 - discovery of muon neutrino 🚨 1995 - detection of neutrino 💡 2002 - detection of cosmic neutrinos 🎇 2015 - neutrino oscillations 🌊 2026 - discovery of high-energy cosmic neutrinos 💥

This year's #NobelPrize in Physics has gone to Francis Halzen "for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin". This was our "breakthrough of the year" in 2013: physicsworld.com/a/cosmic-neu... 🧪⚛️

physicsworld.comCosmic neutrinos named Physics World 2013 Breakthrough of the Year – Physics WorldIceCube experiment at the South Pole tops our list of the 10 key breakthroughs in physics

Why are there so many physics #NobelPrizes about neutrinos? "The neutrino has such peculiar properties, the fact it interacts so infrequently in material, and in this case it’s a way of bringing information about distant cosmic sources that we are unable to acquire in other ways." - Mark Pearce 🧪⚛️

The impressive list of #NobelPrizes in physics related to neutrinos 🧪⚛️: 1988 - discovery of muon neutrino 🚨 1995 - detection of neutrino 💡 2002 - detection of cosmic neutrinos 🎇 2015 - neutrino oscillations 🌊 2026 - discovery of high-energy cosmic neutrinos 💥

While we wait for this year's #NobelPrize in physics, check out our coverage of notable past prizes. This year, we're telling the stories of the first physics Nobel laureates from selected countries. First up: C V Raman, the first Indian physics laureate. physicsworld.com/a/c-v-raman-... 🧪⚛️

physicsworld.comC V Raman: the physicist with a 'Himalayan ego' who went to Stockholm convinced he’d win a Nobel prize – Physics WorldPreetish Kakoty describes why India's only Nobel-prize-winning physicist went to Sweden on a whim
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Finally, deciding where a #NobelPrize laureate is "from" can be tricky when people, national boundaries and national identities are all in flux. Here's a story about that + the length of time it took for various countries to get their first physics Nobelist: physicsworld.com/a/how-long-d... 🧪⚛️

physicsworld.comHow long did it take for countries to claim a Nobel laureate? – Physics WorldDeciding where a prize winner is from can be tricky, but Hamish Johnston tries his best

Bonus: the first physics #NobelPrize winner from Sweden, where this year's laureates will be announced in just a few minutes, was an engineer by the name of Gustaf Dalén. If you're not Swedish, you've probably never heard of him, so here's his story: physicsworld.com/a/the-physic... 🧪⚛️

physicsworld.comThe physics Nobel prizes you’ve never heard of – Physics WorldMargaret Harris uncovers the stories behind two lesser-known laureates: Gabriel Lippmann and Gustaf Dalén

While we wait for this year's #NobelPrize in physics, check out our coverage of notable past prizes. This year, we're telling the stories of the first physics Nobel laureates from selected countries. First up: C V Raman, the first Indian physics laureate. physicsworld.com/a/c-v-raman-... 🧪⚛️

physicsworld.comC V Raman: the physicist with a 'Himalayan ego' who went to Stockholm convinced he’d win a Nobel prize – Physics WorldPreetish Kakoty describes why India's only Nobel-prize-winning physicist went to Sweden on a whim

How confident, or perhaps delusional, do you have to be to travel to Stockholm because you’re so certain you’ll be awarded a Nobel prize? One person who did just that was the Indian physicist C V Raman in 1930. Preetish Kakoty recounts how he did end up winning. 🧪⚛️ physicsworld.com/a/c-v-raman-...

physicsworld.comC V Raman: the physicist with a 'Himalayan ego' who went to Stockholm convinced he’d win a Nobel prize – Physics WorldPreetish Kakoty describes why India's only Nobel-prize-winning physicist went to Sweden on a whim

Picture a room where every photon bouncing off a doorbell camera, every acoustic reflection captured by a passing delivery drone, and every drop of ambient thermal noise is fed into a Bayesian inference engine. This is the courtroom in the new movie Mercy.🧪⚛️ physicsworld.com/a/demon-in-t...

physicsworld.comDemon in the AI machine: bias, bad data and the burden of proof – Physics WorldAndrew Glester reviews the film Mercy, directed by Timur Bekmambetov

A 300 TeV photon from a powerful gamma-ray burst should never have reached the Earth. Scientists have examined two hypothetical effects - axion-like particles and a violation of Lorentz invariance - that could allow such a photon to survive. 🧪⚛️ physicsworld.com/a/scientists...

physicsworld.comScientists explain how a 300 TeV photon could reach Earth – Physics WorldA mysterious signal from a powerful gamma-ray burst may reveal how exotic particles and altered physics could let extreme radiation cross the universe