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Henry Cavendish

Henry Cavendish. 1731-1810. Notable scientific studies. Hydrogen or “inflammable air” D ensity of the Earth E lectricity The “Cavendish Experiment”. THE CAVENDISH EXPERIMENT. Measured the force of gravity between masses. THE CAVENDISH EXPERIMENT.

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Henry Cavendish

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  1. Henry Cavendish • 1731-1810

  2. Notable scientific studies • Hydrogen or “inflammable air” • Density of the Earth • Electricity • The “Cavendish Experiment”

  3. THE CAVENDISH EXPERIMENT • Measured the force of gravity between masses

  4. THE CAVENDISH EXPERIMENT • The gravitational attraction between the big and little balls caused the arm to rotate • Stopped when the torque of the twisting wire balanced the force of attraction • By measuring the angle of the rod and knowing the torque for the wire he was able to determine the force between the pairs • 6ft wooden rod, wire, 2 small and 2 big lead spheres

  5. Cavendish and G • Goal of experiment was to determine the density of Earth • During late 1800s, scientists used his results to determine G • His results gave a G within 1% of the currently accepted value

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