  == Definition of the gravitational field ==  If I remember correctly from my physics clases, the gravitational field is not just defined as Gravitational Force over a test mass but with a limit. Also, it is not any Gravitational Force -as it might be interpreted from the article-. I think it should be written as :  where: *m is the test mass *F is the Gravitational Force between the mass that generates the field and the test mass   