Sir Isaac Newton was very important when considering modern science. He made many contributions in many fields, mainly physics. In my essay I will explore some of the ideas that Sir Isaac Newton talked about and studied throughout his life. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay First, I will write about his, probably the most important, understanding of motion or better known as Newton's laws of motion. These laws essentially consist of three parts: The first law states that 'Every object in a state of uniform motion will remain in that state of motion unless acted upon by an external force'. This means that if an object is at rest, it will remain at rest unless a force acts on it. This means that if you kicked a ball, it would fly forever unless another force acted on it, which it does (air resistance and gravity). The second law of gravity is simply that force equals mass times acceleration, which can be written as f=ma. This means that if the mass decreases, the acceleration must increase. The third law states that "for every action there is an equal and opposite reaction". This law says that, for example, if you are kicking a ball, the ball also pushes back towards you. Secondly, I am writing about one of Newton's lesser-known fields of study, Optics. It was he who first discovered the rainbow and its main colors (red, orange, yellow, green, blue and purple). He experimented with a prism and wrote many diaries and books on this field. In Newton's day many people believed that color was a mixture of dark and light and that prisms colored light. Newton knew this theory was not true. He used refraction to demonstrate that all colors originate from pure white light. Artists were fascinated by Newton's discoveries and this led to another of his inventions, namely an original version of a color wheel which was later adapted and modified by Claude Boutet. This discovery is almost overshadowed by Newton's more "important" discoveries such as his Universal Laws of Gravity. Newton's Law of Universal Gravity may be commonly known as F=Gm1m2/r2. This usually means that each particle attracts all other particles with a force directly proportional to their mass. This means that every single thing in this universe is attracted to each other, no matter how small or gigantic the mass of the objects. The equation written above is correct but it is not written correctly due to the fact that I am unable to type some parts of the equation. Sir Isaac Newton was also one of the first scientists to suggest that the earth was not in fact completely spherical but was instead an oblate spheroid, that is, a sphere but which has flattened poles and the equator is “swollen”. This "bulge" can be demonstrated since the distance from the center of the Earth to the equator is 21 kilometers, which is a greater distance than the distance from the center to one of the poles. In fact, we have recently also discovered that the Earth also has a certain plasticity that allows it to deform slightly, almost like a stupid putty paste, but much less flexible. Newton also made some discoveries in calculus (Isaac Newton Algebra) and also made many advances in the speed of sound and introduced the notion of Newtonian fluid. In addition to his scientific discoveries, he also devoted much of his time to studying biblical chronology and alchemy. Please note: this is just an example. Get a custom article from our expert writers now. Get an essay.