![]() According to his calculations, this force is proportional to the product of the two masses and inversely proportional to the square of the distance between them. He also formulated his law of Universal Gravitation in the Principia, which states that every point mass attracts every single other point mass by a force pointing along the line intersecting both point. The third and final law states that “for every action, there is an equal but opposite reaction”. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.” The second law states that acceleration is produced when a force acts on a mass – ergo, the greater the mass of the object, the greater the force required to accelerate it. The first law, known as the “law of inertia”, states that: “An object at rest will remain at rest unless acted on by an unbalanced force. Image Credit: William Blake Archive/Wikipedia William Blake’s Newton (1795), depicting him as a divine geometer. In it, he formulated his Three Laws of Motion, which were derived from Johann Kepler’s Laws of Planetary Motion and his own mathematical description of gravity. ![]() ![]() But what exactly did he discover? Newton’s Three Laws of Motion:įor starters, his magnum opus – Philosophiæ Naturalis Principia Mathematica (“Mathematical Principles of Natural Philosophy”), which was first published in 1687 – laid the foundations for classical mechanics. And because of his extensive contributions, Sir Isaac Newton is regarded as one of the most influential scholars in the history of science. In fact, the term “Newtonian” came to be used by subsequent generations to describe bodies of knowledge that owed their existence to his theories. ![]() From this, he established a legacy that would dominate the sciences for the next three centuries. In his time, he played a vital role in the Scientific Revolution, helping to advance the fields of physics, astronomy, mathematics and the natural sciences. Isaac Newton – who lived from December 25th, 1642, to March 20th, 1727 – was an English scientist, mathematician, and “natural philosopher”. ![]()
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