What subsisting

Today, we have everything infront of us , everything is so ease. In getting food, to go somewhere as, anything that we involve accumulated with money, and it is our role to get money to satisfy our needs, everyday, anytime. 

Everytime

At this century, life is easy for us. It is upon us to get how much we want and what you are doing for a living. But, as this topic remind me the middle of the seventeenth century was a period of great scientific ferment. The invention of the telescope near the beginning of the century had revolutionized the entire study of the astronomy. The English philosopher Francis Bacon and the French philoshopher Rene Descartes had both urged scientists throughout Europe to cease relying on the authority of Aristotle and to experiment and observe for themselves. What Bacon and Descartes had preached, the great Galileo had practised. His astronomical observations, using the newly invented telescope, had revolutionized the study of astronomy and his mechanical experiments had established what is now known as  Newton's first law of motion.

That's not all, other great scientists, such as William Harvey, who discovered the circulation of the blood , and Johannes Kepler, who discovered the law decribing the motions of the planets around the sun, were bringing new basic information to the scientific community. Others, thought, science are not important and most of community, now, prefer something that really seen infront of us. Still, pure science was largely a plaything of intelectuals, and as yet there was no proof that when applied to technology, science could revolutionize the whole mode of human life, as Francis Bacon had predicted.

Althought Copernicus and Galileo had swept aside some of the misconceptions of ancient science and contributed to a greater understanding of universe, no set of principles had been formulated that could turn this collection of seemingly unrelated facts into a unified theory with which to make scientific predictions. It was Isaac Newton who supplied that unified theory and set modern science on the course which it has followed ever since.

Newton was always reluctant to publish his result, and althought he had formulated the basic ideas behind most of his works by 1669, many of his theorieswere not made public until much later. The first of his discoveries to be published was his ground-breaking work on the nature of light. In series of careful experiments, Newton had discovered thsat ordinary white light is a mixture of all the colors of the rainbow. He had in 1668 designed and actually built the first reflecting telesscope, the type of telescope that is used in most major astronomical obseervation today. These dsicoveries, together with the results of many other optical experiments which he had performed, were presented by Newton before the British Royaln Society when he was tweety nine years old.

Newton's achievements in optics alone would problaly entitle him to a place on this list: however, they are considerably less important than his accomplishments in pure mathematics and mechanics. His major mathematical contribution was his invention of integral calculus, which he probably devised when he was tweenty three or tweenty four years old. That invention, the most important achievement of modern mathematics, is not merely the seed out of which much of modern science woiuld have been impossible. Had Newton done nothiung else, the invention of integral calculus by itself would have entitled him to fairly high place on this list. The invention list.

Newton's most important discoveries, however, were in the field of mechanics, thethe sciences of how material objects move. Galileo had discovered the  first law of motion, which describes the motion of objects if they are not subjected to any exterior forces. In practise, of course, all objects are subjected to any exterior force., and the most important question in mechanics is how object move undfer such circumstances. This problem was solved by Newton in his famous second law of motion, which may rightly be considered the most fundamental law of classical physics. The second law states that the acceleraetion of an object is equal to the net force on the object divided by the object's mass.

To those first two laws, Newton added his famous third law of motion  as there is equal and opposite reaction, and the most famous of his scientific law, the law of universal gravitation. This set of four laws, taken conjointly, form a unified system by means of which virtually all macroscopic mechanical systems, from the swinging of pendulum to the motion of the planets in their orbit around the sun, maybe investigation,