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adding Andrews
The '''inverse square law''' predicts the intensity of a field at a given distance from a point source.
The '''inverse square law''' predicts the intensity of a field at a given distance from a point source. In general, it applies to 'force-fields' forces such as gravitational, magnetic and electrical. This law states that force gets weaker as you move away from its source by a factor of four (i.e. two squared) when the distance from source is doubled.<ref name="WhomadeGod">{{cite book
|author=Edgar Anrews
|title= Who made God? Searching for a theory of everything.
|publisher= EP Books
|location= Carlisle, PA, USA
|year= 2010
|pages=149
|isbn=978-0-85234-707-2
|url=http://books.google.com/books?id=p5LkPwAACAAJ&dq=Andrews+Who+made&hl=en&sa=X&ei=ahTXUYX9A4qF4gTLoYGgCQ&ved=0CCsQ6AEwAA
|quote= }}</ref>
Take a [[point source]] that is propagating something ([[light]], [[sound]], [[gravity]], [[electric field]], etc..) out. Thus
Take a [[point source]] that is propagating something ([[light]], [[sound]], [[gravity]], [[electric field]], etc..) out. Thus