Editing Cavendish Laboratory (section)

==Physics==
Several important early physics discoveries were made here, including the discovery of the [[electron]] by [[J. J. Thomson|J.J. Thomson]] (1897)  the [[Townsend discharge]] by [[John Sealy Townsend]], and the development of the [[cloud chamber]] by [[Charles Thomson Rees Wilson|C.T.R. Wilson]].

[[Ernest Rutherford]] became Director of the Cavendish Laboratory in 1919. Under his leadership the [[neutron]] was discovered by [[James Chadwick]] in 1932, and in the same year the first experiment to split the nucleus in a fully controlled manner was performed by students working under his direction; [[John Cockcroft]] and [[Ernest Walton]].