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Von Eotvoss torsion scale
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Von Eotvoss torsion scale
Von Eotvoss torsion scale. This device, designed to measure gravitational acceleration, was built and operated by the Hungarian physicist Lorand von Eotvos (1848-1919). His 1889 experiment measured the differences in the gravitational acceleration of different masses. This difference was found to be effectively zero, showing that mass and inertia are equivalent. This is a central postulate of Einsteins 1915 theory of General Relativity. A torsion scale can measure tiny attractions between laboratory-scale masses, doing so by small changes in the torsion of twisted wires
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Media ID 6410640
© VOLKER STEGER/SCIENCE PHOTO LIBRARY
1889 Device Einstein Experiment Gravitation Gravity Hungarian Hungary Instrument Mass Relativity Inertia Physical
EDITORS COMMENTS
This print showcases the remarkable Von Eotvoss torsion scale, a groundbreaking device designed by Hungarian physicist Lorand von Eotvos in the late 19th century. This instrument was ingeniously crafted to measure gravitational acceleration and played a pivotal role in scientific research during its time. In 1889, von Eotvos conducted an experiment using this very torsion scale that revolutionized our understanding of gravity. By measuring variations in gravitational acceleration between different masses, he astonishingly discovered that these differences were virtually nonexistent. This groundbreaking finding provided compelling evidence for the equivalence of mass and inertia - a fundamental concept central to Einstein's theory of General Relativity, published in 1915. The Von Eotvoss torsion scale is an extraordinary piece of equipment capable of detecting minuscule attractions between laboratory-scale masses through subtle changes in twisted wires' torsion. Its significance lies not only in its contribution to physics but also as a testament to the ingenuity and dedication of Lorand von Eotvos. This mesmerizing photograph from Science Photo Library captures the essence of this historical instrument, transporting us back to a time when scientific exploration was at its peak. It serves as a reminder that even seemingly simple devices can have profound implications for our understanding of the universe.
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