1-5 Isaac Newton’s Laws of Motion (1) 牛頓運動定律（1）
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Isaac Newton’s Laws of Motion (1)
Sir Isaac Newton possessed one of the keenest scientific intellects of his time. In spite of his brilliance, he was a humble person who always tried to depreciate his contributions to science,
preferring instead to honor the scientists who had preceded him. He once remarked, "If I have seen further [than others], it is by standing upon the shoulders of Giants."
Newton is famous primarily for his laws describing motion. When the plague forced Cambridge University to shut down temporarily, Newton left the university and stayed for a time at his mother's
farm. It was during this period that Newton formulated the three laws of motion, which reduce nearly all the motion we observe to concepts that are relatively simple, considering the
complexities of physics. While there is no evidence to support the popular, but no doubt apocryphal, story that Newton discovered gravity when an apple fell on his head as he sat under a tree,
it seems certain that observing falling objects caused Newton to think about the forces at work in the universe.
牛頓運動定律（1）
牛頓擁有他那時代最犀利的科學天分。儘管成就斐然，他這人卻很謙虛，總是貶低自己在科學上的貢獻，反而喜歡彰顯比他出道更早的科學家。他曾經說過：「如果說我看得[比別人]更遠，那是因為我站在巨人的肩膀上。」
牛頓主要以闡述運動的定律聞名於世。當劍橋大學因黑死病不得不暫時停課時，牛頓離開大學在媽媽農場裡待了一段時間。就是在這期間，牛頓構想出運動三大定律，將我們所觀察到的所有運動簡化為相當簡單的概念，沒有物理學慣有的繁複。有個虛構卻廣為人知的故事說，牛頓坐在樹下時，一顆蘋果砸到他的頭，因而發現地心引力。雖然沒有證據足以為證，但是似乎可以肯定的是觀察掉落的物體讓牛頓想到宇宙中運作的力量。
