Changes

1. Gravity is more than a name - This link gives an overview of what gravity is.

1. Gravity is more than a name - This link gives an overview of what gravity is.

2. Cavendish experiment - This link gives a simple sketch of the Cavendish experiment.

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3. http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyword=k16940&pageid=icb.page80669&pageContentId=icb.pagecontent277503&state=maximize&view=view.do&viewParam_name=indepth.html - This website demonstrates the set-up of the Cavendish experiment.

4. Animation of the Cavendish experiment

4. Animation of the Cavendish experiment