Gravity 1   
by mySoftwareFactory.net   

How fast does gravity travel? What is it about mass that causes the force to exist? Is gravity a particle? Gravity has raised many unanswered questions throughout the ages. It is a force that we are all accustomed to in our daily lives - and yet how much of the subject do we really understand? This gravity calculating tool is designed to help determine the force that should exist between two objects containing mass.