ABSTRACT
The great English scientist Sir IsaacNewton (1642-1727) studied theway objects move when forces act on them. His work resulted in three laws of motion that scientists still use today.
On July 5, 1687, three volumes of work by Sir Isaac Newton were published. The three books were written in Latin, the language of science at that time. Their title is Philosophiae Naturalis Principia Mathematica, which means Mathematical Principles of Natural Philosophy. Natural philosophy was the name in Newton’s time for the science we call physics today. This work is so famous that it is usually simply called the Principia (the Principles).
