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In 1887, the Physikalisch-Technische Bundesanstalt (PTB) was originally founded as the Physikalisch-Technische Reichsanstalt (PTR) in Berlin in order to promote basic research in physics. It subsequently developed into the largest research center worldwide as a place where scientists could concentrate exclusively on their research subject, and served as a model for similar institutes established in other countries. Within a very short time, the PTR produced extremely important scientific results that cemented its international position at the top, such as Max Planck's radiation law and energy

Physical laboratories --- Physics --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Laboratories --- History. --- Research --- Physikalisch-Technische Bundesanstalt (Germany) --- Physikalisch-Technische Reichsanstalt (Germany) --- Imperial Institute of Physics and Technology (Germany) --- Brunswick (City). --- Phys.-Techn. Bundesanstalt (Germany) --- PTB

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Superconducting quantum interference devices --- 538.9 --- 538.9 Physics of condensed matter (in liquid state and solid state) --- Physics of condensed matter (in liquid state and solid state) --- Quantum interference devices, Superconducting --- SQUID devices --- Superconductors --- Congresses --- Electronics

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Pure sciences. Natural sciences (general)