ABSTRACT
Part Two Radioactivity Few would argue with the selection of Michael Faraday as the greatest experimentalist of the nineteenth century. A comparable figure for the present century (at least for its first half) must undoubtedly be Ernest Rutherford. In terms of the magnitude of their achievements and the influence they had on subsequent developments in science, both men stand supreme in their respective fields. No less of an authority than Albert Einstein spoke of the two with equal reverence when he said 'I consider Rutherford to be one of the great experimental scientists of all time, and in the same class as Faraday.'
