# What is Noether's theoremstated for the layman?

Often, the theories studied in physics obey some set of symmetries. When a theory obeys such a symmetry, the quantities that we calculate from the theory should not change if we shift between symmetric situations. From a practical standpoint this mea
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Q&A Related to "What is Noether's theorem stated for the layman..."
 The gougu theorem was the Chinese version of the Pythagorean theorem, they stated the same principle. http://wiki.answers.com/Q/What_was_stated_in_the_g...
 It states that in a right triangle, the longest side of the triangle squared is equal to the sum of the remaining two sides squared. The formula used for this is a²+b²=c http://wiki.answers.com/Q/What_was_pythogoream_the...
 The sum of the areas of the two squares on the legs of a triangle (a and b), where the angle between sides a and b is 90 degrees, equals the area of the square on the hypotenuse ( http://wiki.answers.com/Q/What_does_the_Pythagorea...
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