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chennaisteemer
steemeducation
8y
Are Black holes are real?
Black hole If u have heard only one thing about black hole, it's probably that, once it is in the black hole's event horizon, nothing escapes not even light can capable of that. At which point is natural
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chennaisteemer
sciencestem
8y
Physics - Science - Van de Graff Generator
Van de Graff Generator In 1929, Robert J. Van de Graaff designed an electrostatic machine which produces large electrostatic potential difference of the order of 107 V. 