Newtonian Physics

The force of gravitation, as we use today in theoretical physics, was invented by Newton through the generalization of two observational facts. One of them regards the fall of bodies on Earth. It was known from Galileo that the fall is a uniformly accelerated motion down the vertical direction, i.e. toward the center of the Earth. The other is the observation that whenever we are in a vehicle moving fast and following the turn of a road, our body feels a force pulling towards the outer side of the road. If our vehicle moves in circle the pull is permanent, can be associated [more...]