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Jan 15, 2025

A Geometric Theory of Everything

Posted by in category: particle physics

Deep down, the particles and forces of the universe are a manifestation of exquisite geometry.

By A. Garrett Lisi & James Owen Weatherall

Modern physics began with a sweeping unification: in 1687 Isaac Newton showed that the existing jumble of disparate theories describing everything from planetary motion to tides to pendulums were all aspects of a universal law of gravitation. Unification has played a central role in physics ever since. In the middle of the 19th century James Clerk Maxwell found that electricity and magnetism were two facets of electromagnetism. One hundred years later electromagnetism was unified with the weak nuclear force governing radioactivity, in what physicists call the electroweak theory.

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