Despite the fact that man has not changed one iota physiologically, the technological advancements that have occurred in the last fifty years would normally have taken at least two hundred years to make. There's a reason. We had help. That help came from technology found in downed alien spacecraft.
many other objects.The strength of the gravitational force between two objects depends on two factors,mass and distance. The Mass of the Objects The more mass two objects have,the greater the force of gravity the masses exert on each other.If one of the masses is doubled,the force of gravity between the objects is doubled.
We also have F g = m a from Newton's second law, so a = g. The proportional constant g is called the acceleration due to gravity. On the surface of the earth g = 9.8 m/s 2 and its direction is downward. The force of gravity acting on an object is called its weight.