Spatial measurement Space

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the measurement of physical space has long been important. although earlier societies had developed measuring systems, international system of units, (si), common system of units used in measuring of space, , universally used.


currently, standard space interval, called standard meter or meter, defined distance traveled light in vacuum during time interval of 1/299,792,458 of second. definition coupled present definition of second based on special theory of relativity in speed of light plays role of fundamental constant of nature.







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