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Physics

Physicists Detect Four New Gravitational Waves

The twin LIGO (Laser Interferometer Gravitational-Wave Observatory) detectors, located in Livingston, Louisiana, and Hanford, Washington, and the Virgo detector located near Pisa, Italy, have detected four new gravitational waves — ripples in the fabric of spacetime. The collision of two black holes is seen in this still from a computer …

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Physicists Measure Mass Numbers of Nihonium and Moscovium

Physicists using the FIONA (For the Identification Of Nuclide A) device at the Department of Energy’s Lawrence Berkeley National Laboratory’s 88-inch Cyclotron have performed the first direct measurements of the mass numbers for the nuclei of nihonium (Nh, element 113) and moscovium (Mc, element 115). Left: average of known decay …

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Researchers Finally Decode Internal Structure of Kerogen

Kerogen is a waxy, insoluble organic substance dispersed in sedimentary rocks and is the precursor of oil and gas. In a new study, published in the Proceedings of the National Academy of Science, researchers from MIT and elsewhere have captured 3D images of kerogen’s internal structure, with a level of …

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Physicists Solve Structure of Unusually Complex Form of Nitrogen

An international team of experimental physicists has for the first time determined the structure of ι-N2, a crystallized version of nitrogen. Turnbull et al synthesized a single crystal of ι–N2 in a diamond anvil cell from ε–N2 at 65 GPa and 477 degrees Celsius. Image credit: Turnbull et al, doi: 10.1038/s41467-018-07074-4. …

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Scientists Are About to Redefine the Kilogram

The kilogram is one of the most important and widely used units of measure in the world — unless you live in the US. For everyone else, having an accurate reading on what a kilogram is can be vitally important in fields like manufacturing, engineering, and transportation. Of course, a …

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