Where is the gravitational constant measured in the Cavendish experiment usually identified?
Quick Answer
It is identified with the torsion-balance laboratory in Clapham, London, where Cavendish’s 1797–1798 measurements were made. The result is often summarized as the first accurate weigh-in of Earth’s mass.
The Full Story
The Cavendish experiment is usually associated with Cavendish’s private laboratory in Clapham, London. That is where he used a torsion balance to measure the tiny gravitational force between masses in 1797–1798. While Cavendish framed it as a density experiment, it is now famous as an early precise measurement related to the gravitational constant. The work helped quantify Newtonian gravity with remarkable accuracy for its time.
Key Facts
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"The classic lab that let scientists weigh the Earth."
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