Galilean moons century when other inner moons were discovered, and Marius' names became widely used. Galileo was able to develop a method of determining longitude based on the timing of the orbits of the Galilean moons. The times of the eclipses of the moons could be precisely calculated in advance, and compared with local observations on land or on ship to determine the local time and hence longitude. The main problem with the technique was that it was difficult to observe the Galilean moons through a telescope on a moving ship; a problem that Galileo tried to solve with the invention of
Newtonian dynamics Newtonian dynamics In physics, the Newtonian dynamics is understood as the dynamics of a particle or a small body according to Newton's laws of motion. Typically, the Newtonian dynamics occurs in a three-dimensional Euclidean space, which is flat. However, in mathematics Newton's laws of motion can be generalized to multidimensional and curved spaces. Often the term Newtonian dynamics is narrowed to Newton's second law formula_1. Let's consider formula_2 particles with masses formula_3 in the regular three-dimensional Euclidean space. Let formula_4 be their radius-vectors in some inertial coordinate system. Then the motion of these particles is governed by Newton's second law