In some places today, women are still marginalized from executive positions and continue to earn less than men in upper management positions. Another example of individual marginalization is the exclusion of individuals with disabilities from the labor force.
The term laws of motion generally refers to three statements originally devised by English physicist Isaac Newton (1642â1727) in the 1680s. These laws, along with Newton's law of gravitation, are generally considered to be the ultimate solution to a problem that had troubled scholars for more than 2,000 years: motion.
Johannes Kepler was the first to understand that the planets in our solar system move in ellipses, not circles. He then continued his investigations, finally arriving at three principles of planetary motion. Known as Kepler's Laws, these principles revolutionized planetary astronomy.