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local - Physics
local - Physics

... he world we live in is a strange and wonderful place. The vast majority of our interactions with objects around us can be described and predicted by relatively simple equations and relations, which have been fully understood for centuries now. The concept of this tactile world is however, a result o ...
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Lesson 5.1 - Mona Shores Blogs

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... Most often the cells in the honeycombs look like hexagons, but they might also look like circles. Scientists now believe that the bees make circular cells that become hexagonal due to the bees’ body heat and natural physical forces. What are some strategies you use to identify shapes? Think about th ...
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here - Mel Conway`s

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9.1 Properties of Parallelograms

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... valued (densely defined) functions, namely the usual quantum expectations of corresponding selfadjoint operators. It is shown in this paper that inclusion of additional (“nonlinear”) symmetry generators (i.e. “Hamiltonians”) into this reformulation of (linear) QM leads to a considerable extension of ...
Electromagnetic Modeling Based on Directional Time
Electromagnetic Modeling Based on Directional Time

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Noether's theorem



Noether's (first) theorem states that every differentiable symmetry of the action of a physical system has a corresponding conservation law. The theorem was proven by German mathematician Emmy Noether in 1915 and published in 1918. The action of a physical system is the integral over time of a Lagrangian function (which may or may not be an integral over space of a Lagrangian density function), from which the system's behavior can be determined by the principle of least action.Noether's theorem has become a fundamental tool of modern theoretical physics and the calculus of variations. A generalization of the seminal formulations on constants of motion in Lagrangian and Hamiltonian mechanics (developed in 1788 and 1833, respectively), it does not apply to systems that cannot be modeled with a Lagrangian alone (e.g. systems with a Rayleigh dissipation function). In particular, dissipative systems with continuous symmetries need not have a corresponding conservation law.
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