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Karmela Padavic-Callaghan

Reporter · GB

Indexed articles, last 90 days
34
Latest publication
Sep 21, 2026
Outlet visibility, for New Scientist
Top 50K sites
Earliest in this view
Jul 7, 2026

Latest articles

  1. Article · Sep 21, 2026 · Karmela Padavic-Callaghan

    Swimmer made of quantum light breaks Newton's third law | New Scientist (opens the original)

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    For most objects, for every action, there is an equal and opposite reaction. But if you are swimming upstream in a river of quantum light, the normal rules don’t apply. Physicists have demonstrated that breaking Isaac Newton’s third law of motion in such a setting can be useful, leading to new ways of controlling quantum light in experiments and devices. Moving upstream against the current is possible, as some animals and boats do, but at the cost of expending energy. Yi Hu at Nankai University

  2. Article · Sep 16, 2026 · Karmela Padavic-Callaghan

    On the Equality of All Things review: Carlo Rovelli takes on physics and philosophy in a compelling new book | New Scientist (opens the original)

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    On the Equality of All ThingsCarlo Rovelli, Translated by Simon Carnell As the science that describes the ingredients of our reality and how they interact, physics can make a strong claim to helping us understand our surroundings. But what about the making of meaning more broadly? In On the Equality of All Things: Physics and philosophy, physicist Carlo Rovelli tackles this question to great effect. He argues that, with the advent of quantum physics, science underwent a revolution, but philosoph

  3. Article · Sep 16, 2026 · Karmela Padavic-Callaghan

    Nuclear fusion experiment produces the brightest X-rays on Earth yet | New Scientist (opens the original)

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    A nuclear fusion reaction has produced the brightest X-rays ever on Earth, rivalling those emitted by some stars. This could open the door for new extreme experiments, such as mimicking how the sun absorbs radiation and testing how materials that could improve future fusion reactions hold up to nuclear blasts. The reaction itself was also hotter than the sun. “The truth of the matter is, when the fuel is burning and ignition is occurring, and that [blast] wave is propagating out, we’re hotter th

  4. Article · Sep 15, 2026 · Karmela Padavic-Callaghan

    We may finally have a way to rate a quantum computer’s usefulness | New Scientist (opens the original)

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    How useful is a particular quantum computer? We may finally be able to answer this question. Quantum computers have made significant strides in recent years, becoming both more reliable and powerful. Yet, when it comes to computations that could have a large impact on the world, such as understanding the FeMoco molecule, which plays a key role in nitrogen fixing, or breaking today’s most prevalent cryptography methods, quantum computers still underperform. But assessing how far they are from bei

  5. Article · Sep 15, 2026 · Karmela Padavic-Callaghan

    One of the fundamental forces is stronger than we thought | New Scientist (opens the original)

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    One of the universe’s fundamental forces appears to be stronger than we thought, a finding that could lead to the discovery of new particles. The electroweak force unifies the electromagnetic and the weak nuclear forces. Under ordinary conditions, the two forces are distinct and play a role in different processes, such as the weak force being part of radioactive decay and the electromagnetic force affecting charged objects. But at very high energies and temperatures, like as seen in some stages

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