III.—THE PRINCIPLE OF LEAST ACTION AS A PSYCHOLOGICAL PRINCIPLE
نویسندگان
چکیده
منابع مشابه
The Principle of Least Action
In their never-ending search for general principles, from which various laws of Physics could be derived, physicists, and most notably theoretical physicists, have often made use of variational techniques. These usually involved the minimisation of certain quantities. A typical example is Fermat’s principle of least time where light, propagating between two distant points in space, is postulate...
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If the question were who among the philosophers was the first to realize that nature in all its operations follows the easiest path, or what amounts to the same thing, expends the least amount of effort, it would surely be ridiculous to suppose that any one modern philosopher could lay claim to this glorious discovery. The earliest philosophers had already recognized that nature does nothing in...
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Given the present distribution of mass tracing objects in an expanding universe, we develop and test a fast method for recovering their past orbits using the least action principle. In this method, termed FAM for Fast Action Minimization, the orbits are expanded in a set of orthogonal time-base functions satisfying the appropriate boundary conditions at the initial and final times. The conjugat...
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We extend the least action principle to continuum systems. The data for the new principle consists of the intensity of the wave (or rather the wave action) at two instances of time. We define an appropriate Lagrangian, and formulate a variational problem in terms of it. The critical points of the functional are used to determine the wave’s phase. The theory is applicable to the semiclassical li...
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The size principle implies that the motoneurons of a muscle pool are activated in ascending order of their sizes when that pool of motoneurons receives a common, increasing input. We suggest a simple discrete Lagrangian for an isometrically contracting skeletal muscle. Minimizing the time integral of this Lagrangian leads to recruitment of motor units according to increasing size.
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ژورنال
عنوان ژورنال: Mind
سال: 1900
ISSN: 0026-4423,1460-2113
DOI: 10.1093/mind/ix.36.469