Hello. I have some question about "the gravitationnal force" because this concept seems (for me) not physicaly accurate. At first approximation, everybody knows that the intensity of the gravitationnal force is proportionnal to the inverse of the square of the distance. F(d)=GmM/(d*d) Therefore at some distance everything that is at distance d will be attracted with the force F(d) So far so good. But this force F(d) act into the whole tridimensional volume where there is gravtitationnal activity coming from one mass. To be consistent with the inverse squared value of gravitationnal force, the force should only act on a surface, not in a volume. More strange : The volume is increasing at light speed ! (because gravitational field is supposed to extand at this speed, altought this point could be discussed...) So the total intensity of the force (if we sum the force into the volume) is increasing as time passes... To be accurate the gravitational field could behavior like the electromagnetic field... but this would mean the gravitational wave, like the light, is part of quantum mecanic (but it is not). Anyone has an explaination to this strange behavior ?