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This principle is a physical extension of the Euclidean theorem that the shortest distance between two points is a straight line.

This principle is a physical extension of the Euclidean theorem that the shortest distance between two points is a straight line.

The doctoral thesis of physicist [[Richard Feynmann]] applied the Principle of Least Action to [[quantum mechanics]], and later built on that work to generate "Feynman diagrams," for which he won a shared [[Nobel Prize]].

The doctoral thesis of physicist [[Richard Feynmann]] applied the Principle of Least Action to [[quantum mechanics]], and he later built on that work to generate "Feynman diagrams," for which he won a shared [[Nobel Prize]].

{{cquote|Basically, without outside intervention, objects travel along the path of least resistance and least change. This is called the principle of least action. We know it applies in our everyday world, and now—thanks to a new study—we know it applies in the quantum world as well.<ref>https://www.popularmechanics.com/science/a43981125/principle-of-least-action-demonstrated-in-quantum-realm/</ref>}}

{{cquote|Basically, without outside intervention, objects travel along the path of least resistance and least change. This is called the principle of least action. We know it applies in our everyday world, and now—thanks to a new study—we know it applies in the quantum world as well.<ref>https://www.popularmechanics.com/science/a43981125/principle-of-least-action-demonstrated-in-quantum-realm/</ref>}}