Since 1918 it has been known that the law of conservation of energy is the direct mathematical consequence of the translational symmetry of the quantity conjugate to energy, namely [[time]]. That is, energy is conserved because the laws of [[physics]] do not distinguish between different moments of time.[http://en.wikipedia.org/wiki/Energy] | Since 1918 it has been known that the law of conservation of energy is the direct mathematical consequence of the translational symmetry of the quantity conjugate to energy, namely [[time]]. That is, energy is conserved because the laws of [[physics]] do not distinguish between different moments of time.[http://en.wikipedia.org/wiki/Energy] |