Experimentally measure gravitational force

[Taseng Mancheykhun]

Can we experimentally measure the very weak gravitational force between two objects just like we can detect magnetic field lines by a deflecting compass.

 

[Doc Al]

Read about the experiments done by Cavendish (back in 1797!): Cavendish experiment

 

[jtbell]

Google searches for "cavendish experiment" and "cavendish apparatus" should find:

1. undergraduate laboratory versions of the Cavendish experiment
2. apparatus sold by scientific laboratory equipment companies (e.g. Pasco Scientific) for such undergraduate experiments
3. "homemade" versions of the Cavendish experiment (YouTube videos etc.)

 

[JRMichler]

Another good read is the Forward Mass Detector: https://www.physicsforums.com/threads/dr-robert-forwards-curvature-gradient-detector.185792/. You can get a copy of the patent from the U.S. Patent Office: patft.uspto.gov.