formalisms:lagrangian_formalism
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formalisms:lagrangian_formalism [2020/04/03 16:10] 95.168.180.148 Minor fixes and link added |
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| The basic idea of the Lagrangian formalism can be summarized by the statement: | The basic idea of the Lagrangian formalism can be summarized by the statement: | ||
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| //Nature is lazy.// | //Nature is lazy.// | ||
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| The laziness of nature is demonstrated nicely by how light behaves. | The laziness of nature is demonstrated nicely by how light behaves. | ||
| - | **The Principle of Least Time | + | **The Principle of Least Time** |
| - | ** | + | |
| Long before Joseph Lagrange invented the formalism now named after him, it was well known that light always takes the path between two points that requires the least travel time. This is known as **Fermat's Principle**. | Long before Joseph Lagrange invented the formalism now named after him, it was well known that light always takes the path between two points that requires the least travel time. This is known as **Fermat's Principle**. | ||
formalisms/lagrangian_formalism.txt · Last modified: 2023/03/08 17:35 by 62.4.55.178
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