Physics

Tracking chirality in real time

Tracking chirality in real time

Artist’s impression of a time-resolved circular dichroism measurement of a photoexcited spin-crossover complex. Credit: Ella Maru Studio, Inc. Chiral molecules exist in two forms, called enantiomers, which are mirror images of each other and non-superimposable—much like a pair of hands. While they share most chemical and physical properties, enantiomers can have adverse effects in (bio)chemical …

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Quantum Electronic Link Diagram

Physicists Discover Strange Array of Links and Knots in Quantum Matter

Link diagram of the quantum electronic link in momentum (velocity) space observed in the topological Weyl magnet Co2MnGa, determined from advanced photoemission spectroscopy measurements. Credit: Ilya Belopolski and M. Zahid Hasan, Princeton University Electrons in a Crystal Exhibit Linked and Knotted Quantum Twists As physicists dig deeper into the quantum realm, they are discovering an …

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rainbow with black lines marking where different atoms have absorbed wavelengths of light

Mystery of the Sun’s Chemical Makeup Lingers – Sky & Telescope

An international team of astronomers says it has just solved a solar mystery that’s stood for well over a decade. There are two ways to work out what the Sun is made of. The first, called spectroscopy, looks at the Sun’s spectrum. Precise wavelengths of light are missing from this spectrum because they’ve been swallowed …

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Over the Top Physics-Based Shoot 'Em Up 'The Day We Fought Space' is Now Available on iOS – TouchArcade

Over the Top Physics-Based Shoot ‘Em Up ‘The Day We Fought Space’ is Now Available on iOS – TouchArcade

We’ve been following along with the progress of The Day We Fought Space! from developer Tursiops Truncatus ever since it was first announced in early 2019, with the original hope that it would launch by the end of that year. Well, it didn’t quite make it in 2019 and then 2020 rolled around and… yeah, …

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Lightning Can Produce Gamma-Ray Flashes And We Might Finally Know How

Lightning Can Produce Gamma-Ray Flashes And We Might Finally Know How

Gamma-rays are the most energetic light wave produced in the universe. So energetic, in fact, that they are seen in certain radioactive decays, in many cosmic explosions, and also in lightning. Lightning in particular has been a bit of a head-scratcher, as no one knows how it produces gamma-rays. The terrestrial gamma-ray flashes (TGFs) are …

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AI solution makes the quest for elusive monolayers a lot simpler

AI solution makes the quest for elusive monolayers a lot simpler

Researchers can process 100 images covering 1 centimeter x 1 centimeter-sized samples like this one in around nine minutes using a new system that greatly simplifies the often tedious search for monolayers in the lab. Credit: University of Rochester photo / J. Adam Fenster One of the most tedious, daunting tasks for undergraduate assistants in …

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Elusive Magnetic Monopoles May Be Hiding High, High Above Us, Says New Study

Elusive Magnetic Monopoles May Be Hiding High, High Above Us, Says New Study

Somewhere out in the cosmos, there’s the physics equivalent of a unicorn. Catching even a glimpse of this oddity that looks like the isolated tip of a magnet would be like a beacon in the night, pointing the way to grand, unifying theories of absolutely everything. Yet aside from one tiny exception in the early …

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Magnetic Waves Sweep The Earth's Core Every Seven Years, Satellites Discover

Magnetic Waves Sweep The Earth’s Core Every Seven Years, Satellites Discover

Underneath our feet, thousands of kilometers deep, molten iron and nickel move about in the Earth’s outer core. This motion creates our planet’s magnetic field – a shield that has protected life against the worst of cosmic radiation for billions of years. Understanding the geomagnetic field is still a work in progress, and new research …

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New route to build materials out of tiny particles

New route to build materials out of tiny particles

Four cubic colloids made from glass. Credit: TU Delft Researcher Laura Rossi and her group at TU Delft have found a new way to build synthetic materials out of tiny glass particles—so-called colloids. Together with their colleagues from Queen’s University and the University of Amsterdam, they showed that they can simply use the shape of …

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