Physics

  • 3D microscopy clarifies understanding of body’s immune response to obesity

    Researchers who focus on fat know that some adipose tissue is more prone to inflammation-related comorbidities than others, but the reasons why are not well understood. Thanks to a new analytical technique, scientists are getting a clearer view of the microenvironments found within adipose tissue associated with obesity. This advance may illuminate why some adipose tissues are more prone to…

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  • Light used to detect quantum information stored in 100,000 nuclear quantum bits

    Researchers have found a way to use light and a single electron to communicate with a cloud of quantum bits and sense their behaviour, making it possible to detect a single quantum bit in a dense cloud. The researchers, from the University of Cambridge, were able to inject a ‘needle’ of highly fragile quantum information in a ‘haystack’ of 100,000…

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  • Photo of Tiny, sunlight-powered aircraft could soar beyond airplanes’ reach

    Tiny, sunlight-powered aircraft could soar beyond airplanes’ reach

    Flight isn’t easy at the edge of space. But tiny “microfliers” could soar high in Earth’s atmosphere fueled only by sunlight, experiments suggest. At heights between about 50 and 80 kilometers above Earth’s surface, in what’s known as the mesosphere, the atmosphere is so thin that airplanes and balloons can’t stay aloft. But mechanical engineer Mohsen Azadi and colleagues at…

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  • Scientists manipulate magnets at the atomic scale

    Fast and energy-efficient future data processing technologies are on the horizon after an international team of scientists successfully manipulated magnets at the atomic level. Physicist Dr Rostislav Mikhaylovskiy from Lancaster University said: “With stalling efficiency trends of current technology, new scientific approaches are especially valuable. Our discovery of the atomically-driven ultrafast control of magnetism opens broad avenues for fast and…

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  • Photo of 50 years ago, scientists were on a quest for quarks

    50 years ago, scientists were on a quest for quarks

    More about partons — Science News, February 13, 1971 Experiments in which protons and neutrons were bombarded with high-energy electrons have given indications that protons and neutrons are not amorphous masses but composed of distinct subparticles. The subparticles have been named partons, and whether or not they correspond to the hypothetical quarks remains a moot question. Update The so-called partons…

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  • Photo of Drone-based photogrammetry: A reliable and low-cost method for estimating plant biomass

    Drone-based photogrammetry: A reliable and low-cost method for estimating plant biomass

    Remote sensing technology has become a vital tool for scientists over the past several decades for monitoring changes in land use, ice cover, and vegetation across the globe. Satellite imagery, however, is typically available at only coarse resolutions, allowing only for the analysis of broad trends over large areas. Remote-controlled drones are an increasingly affordable alternative for researchers working at…

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  • Spontaneous quantum error correction demonstrated

    To build a universal quantum computer from fragile quantum components, effective implementation of quantum error correction (QEC) is an essential requirement and a central challenge. QEC is used in quantum computing, which has the potential to solve scientific problems beyond the scope of supercomputers, to protect quantum information from errors due to various noise. Published by the journal Nature, research…

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  • Photo of Computational medicine: Moving from uncertainty to precision

    Computational medicine: Moving from uncertainty to precision

    Individual choices in medicine carry a certain amount of uncertainty. An innovative partnership at The University of Texas at Austin takes aim at medicine down to the individual level by applying state-of-the-art computation to medical care. “Medicine in its essence is decision-making under uncertainty, decisions about tests and treatments,” said Radek Bukowski, MD, PhD, professor and associate chair of Investigation…

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  • Photo of Why does ice float on water?

    Why does ice float on water?

    Perhaps a cold, refreshing drink on a hot day wouldn’t look so appealing if the ice cubes dropped like a stone to the bottom of the glass. But why does ice float on water? In fact, why does anything float at all? What makes something float? An object less dense than water will float. We can explain this phenomenon with…

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  • Photo of ‘Designer molecules’ could create tailor-made quantum devices

    ‘Designer molecules’ could create tailor-made quantum devices

    Quantum bits made from “designer molecules” are coming into fashion. By carefully tailoring the composition of molecules, researchers are creating chemical systems suited to a variety of quantum tasks. “The ability to control molecules … makes them just a beautiful and wonderful system to work with,” said Danna Freedman, a chemist at Northwestern University in Evanston, Ill. “Molecules are the…

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