The Forces of Nature
Four fundamental forces rule the universe: gravity, the electromagnetic force and then two that act in and around the atomic nucleus, known as strong and weak. The latter pair act over distances smaller than atoms and so are less familiar to our macroscopic senses than are the effects of gravity and magnets.
However, they are critical to our existence, keeping the Sun burning and providing the essential warmth for life.
Francis Edwin Close is a noted particle physicist who is Professor of Physics at the University of Oxford and a Fellow of Exeter College, Oxford.
(from gresham.ac.uk)
| The Forces of Nature |
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