big and the small
Man measures around him according to their own dimensions, has created his own order of magnitude: a redwood, the Empire State or Jupiter are classified as large, while clover, an ant or a virus are small. If an ant who measured out, vary the order established by man.
In physics what is significant is the unit that is measured, which determines the size of the magnitud.Lo large and small are relative, it all depends on the unit employed.
But there are relationships between measures that always give the same result:
These relationships are dimensionless, for example: the number pi is a quantity that does not change its value even if the circumference size varíe.Otro example, is the solution of the hypotenuse of two isosceles triangles of different sizes, because she always appears in: √ 2
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