Ngày 10 tháng 4, 2019, nhóm thiên văn EHT (Event Horizon Telescope) công bố bức ảnh của hố đen ở trung tâm thiên hà M87. Đây là bức ảnh kỳ công, khép lại cuộc truy lùng gần một thể kỷ. Thành quả này đi lên từ di sản thiên văn mà con người đã dày công xây dựng suốt 250 năm.
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For some phenomena in quantum many-body physics several competing theories exist. But which of them describes a quantum phenomenon best? Researchers have now successfully deployed artificial neural networks for image analysis of quantum systems.
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A new article details how small samples of ubiquitous building materials, such as tile or brick, can be used to test whether a facility has ever stored high enriched uranium, which can be used to create nuclear weapons. The technique could serve as a valuable forensic tool for national or international efforts related to nuclear nonproliferation and security.
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Beryllium, a hard, silvery metal long used in X-ray machines and spacecraft, is finding a new role in the quest to bring the power that drives the sun and stars to Earth. Beryllium is one of the two main materials used for the wall in ITER, a multinational fusion facility under construction in France to demonstrate the practicality of fusion power. Now, physicists from the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and General Atomics have concluded that injecting tiny beryllium pellets into ITER could help stabilize the plasma that fuels fusion reactions.
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Nuclear power plants can withstand most inclement weather and do not emit harmful greenhouse gases. However, trafficking of the nuclear materials to furnish them with fuel remains a serious issue as security technology continues to be developed. Physicists conducted research to enhance global nuclear security by improving radiation detectors. According to them, improving radiation detectors requires the identification of better sensor materials and the development of smarter algorithms to process detector signals.
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Researchers have developed a new chemical separation method that is vastly more efficient than conventional processes, opening the door to faster discovery of new elements, easier nuclear fuel reprocessing, and, most tantalizing, a better way to attain actinium-225, a promising therapeutic isotope for cancer treatment.
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