Rutherford's discovery was the beginning of the science that came to be called nuclear physics. ...The projectiles that he used to explore the nucleus were particles produced in the disintegration of radium... discovered by Marie Curie in 1898. The particles are helium nuclei that are emitted at high speed when radium atoms decay...The twenty years between 1909 and 1929 were the era of tabletop nuclear physics. ...Small and simple experiments were sufficient to establish the basic laws of nuclear physics.
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About Ernest Rutherford
Ernest Rutherford was a 19th-century New Zealand physicist and chemist. Ernest Rutherford, 1st Baron Rutherford of Nelson, was a New Zealand physicist and chemist who was a pioneering researcher in both atomic and nuclear physics. He has been described as "the father of nuclear physics" and "the greatest experimentalist since Michael Faraday." In 1908, he was awarded the Nobel Prize in Chemistry "for his investigations into the disintegration of the elements, and the chemistry of radioactive substances." Read more on Wikipedia →