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LIGO mirrors have been cooled to near their quantum ground state

Physics World

Now, an international team of researchers has cooled the interferometers’ large mirrors close to their quantum ground state. By cooling objects massive enough to potentially feel a detectable gravitational force, the researchers hope to open a new window into gravity’s possible effects on quantum mechanics. Very cool”. “I

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Shading the Great Barrier Reef from the sun might slow bleaching-induced coral decline

Frontiers

This knowledge can help with solar radiation management in marine ecosystems, including the Great Barrier Reef. As frequency and severity of mass bleaching events are expected to increase in the future, researchers are looking for ways to protect corals from excessive radiation and temperatures.

Cooling 141
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Continuous Bose–Einstein condensate opens the door to continuous-wave atom lasers

Physics World

BECs form when a gas of bosonic atoms is cooled to ultracold temperatures. In 2013, Schreck and colleagues, then at Austria’s Institute for Quantum Optics and Quantum Information and the University if Innsbruck, created the first BEC by the laser cooling of atoms rather than evaporative cooling. Two-stage process.

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Solar panels can heat the local urban environment, systematic review reveals

Physics World

Specifically, we found that photovoltaics can significantly warm the urban environment during the day, but typically cool the urban environment at night. Other studies, particularly modelling studies, had previously suggested a daytime cooling effect of photovoltaics. What research did you include in your study?

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Five Things the “Nuclear Bros” Don’t Want You to Know About Small Modular Reactors

Union of Concerned Scientists

This is due in no small part to the “ nuclear bros ”: an active and seemingly tireless group of nuclear power advocates who dominate social media discussions on energy by promoting SMRs and other “advanced” nuclear technologies as the only real solution for the climate crisis.

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Fast electrons accelerate the production of medical isotopes

Physics World

Technetium-99m ( 99m Tc) is a metastable radionuclide that emits gamma radiation which can be detected in the body by a medical gamma camera. The company then realized that, in contrast with present electron accelerators, its technology could be scaled to meet the specifications needed for large-scale radioisotope production.

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Astronomers capture most detailed images of large, rare metal asteroid

Physics World

The researchers also found that Psyche has a relatively high thermal inertia compared to other asteroids, yet it radiates approximately 60% less heat than would be expected for an object with such a high inertia. In principle, Psyche’s thermal emissions could offer further clues to its composition.

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