Respuesta :

Well in some cases like when the first atomic bomb was created or when 1960's rockets were being made you would of had man made disasters and in others cases your grandmother would not have the best cookie recipe.Whithout them we can not make the things we desire in that specific way without measuring because you can picture something easily but weather you want it to taste good or work right is in the matter of the right units used to it happen.

Hope that helps..
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