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Physicists at MIT shave the estimate of the mass of neutrino ghost particles in half

An international team of scientists, including researchers at MIT has come closer to establishing the mass of the elusive neutrino. These ghostly particles penetrate the universe and are still considered almost massless. They flow through our bodies millions of times and hardly leave any physical traces. The researchers have determined that the mass of the neutrino should not be more …

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Multidecadal increase of plastic particles in coastal ocean sediments

Abstract We analyzed coastal sediments of the Santa Barbara Basin, California, for historical changes in microplastic deposition with a box core that extended over the years 1834-2009. The sediment was visually sorted by plastic and a subset confirmed as plastic polymers by FTIR spectroscopy (Fourier transform infrared spectroscopy). After correcting contaminants introduced during sample processing, we noted an exponential increase …

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A new experiment restricts possible properties of dark energy particles

A simulation of a galaxy that forms under a modified theory of gravitation with chameleons. Graphic: Christian Arnold / Baojiu Li / Durham University (Phys.org) An experiment in the UK failed to find any evidence for a particle that would account for most of the bulk of the universe. But the search is not over yet. When cosmologists observe how …

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Plastic particles falling out of sky with snow in the Arctic

Media playback is not supported on your device. Media Title The locals are & # 39; sad & # 39; about the changes in the Arctic that you have seen. Even in the Arctic, microscopic plastic particles fall from the sky with snow, a study has found. The scientists were shocked by the sheer number of particles found: more than …

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Stanford physicists count sound particles with the quantum microphone

IMAGE: Artistic representation of a series of nanomechanical resonators designed to generate and trap sound particles or phonons. The mechanical movements of the captured phonons are controlled by a qubit detector … view more Credit: Wentao Jiang The physicists of Stanford have developed a sensitive "quantum microphone" that can measure individual sound particles, called phonons. The journal Nature could eventually …

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Physicists count sound particles with quantum microphone

Artistic representation of a series of nanomechanical resonators designed to generate and trap sound particles or phonons. The mechanical movements of the captured phonons are detected by a qubit detector, which shifts its frequency as a function of the number of phonons in a resonator. Different phonon numbers are visible as distinct peaks in the qubit spectrum, which are shown …

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Scientists combine light and matter to create particles with new behavior

Photo credit: Petr Kratochvil / public domain Every atomic type in the Universe has a unique fingerprint: it absorbs or emits light only at certain energies that correspond to the allowed orbits of its electrons. This fingerprint allows scientists to identify an atom wherever it is located. A hydrogen atom in space absorbs light with the same energies as one …

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New theory for capturing light particles aims to drive the development of quantum computers

Credit: CC0 Public Domain Quantum computers, which use light particles (photons) instead of electrons to transmit and process data, promise a new era of research that significantly shortens the time to realize life-saving medicines and new technologies. Photons are promising candidates for quantum computation because they can propagate over long distances without losing information, but when stored in matter, they …

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