"In 1858 Johann Heinrich Geissler... invented a pump that used columns of mercury as pistons and consequently needed no gaskets. ...Geissler's pump was used... by ... [M]etal plates inside a glass tube were connected to a powerful source of electricity. ...[W]hen almost all of the air was evacuated ...the light disappeared through most of the tube, but a greenish glow appeared ...near the cathode. ...A few years later, ... introduced a name... s. We know now that these rays are streams of electrons. ...But this was far from obvious to nineteenth century physicists. ...PlĂĽcker ...observed that the position of the glow on the walls of the tube could be moved by ...a magnet ..."
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Activists from the United StatesAtheism activistsAtheists from the United StatesAcademics from the United StatesPhysicists from the United States
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Steven Weinberg
1933 – 2021
US-amerikanischer Physiker und Nobelpreisträger
106 quotes on TrueQuotesView all quotes by Steven Weinberg →
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