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Fundamental Particles

Nature volume 158, pages 773775 (30 November 1946) | Download Citation



IN the last fifteen years, the situation in fundamental physics has undergone a remarkable change. Previously only very few elementary particles were known; and optimistic observers, in fact, believed that it would be a comparatively simple task to elucidate the inter-relations of these particles and to account for the values of the few dimensionless constants (such as the fine-structure constant and the ratio of proton to electron mass) derivable from them. It was even said that the end of physics might be in sight.

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