Abstract

The idea of the indivisible atom, held since the time of the ancient Greeks, was smashed just over 100 years ago. Ernest Rutherford and his team of scientists in the UK used scattering experiments to discover that atoms have a very dense and extremely small central nucleus that contains more than 99.9% of the mass of an atom and is ten thousand times smaller than an atom. Then just over 50 years ago three physicists in America: Jerome Friedman, Henry Kendall and Richard Taylor carried out scattering experiments in California, that revealed the internal structure of nucleons—later called quarks. This workshop, developed by the Public Engagement team at the Science and Technology Facilities Council, takes secondary school students through these historic discoveries and the present day scattering experiments still changing the world of science.

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