Newton is the force that , when applied to an object with a mass of one kilogram , would give it an acceleration of one metre per second per second 实际上，以推动一个一千克的物体产生1ms2加速度来复现一牛顿的标准力值并不容易。
Although newton ' s theory explained what gravity does , the question of why it works this way remained a mystery for the next 300 years 尽管牛顿的理论解释了什么是引力，但在未来的300年，为什么引力会起这样的作用这个问题仍旧将是个迷。
When gravity operates according to the rules of either newton ' s theory or general relativity , its strength falls off with the square of the distance between objects 当重力按照不管是牛顿的理论、或是广义相对论的法则起作用时，它的作用强度都是随物体间距离的平方而减弱。
According to the fia standard 8853 / 98 , every fastening point of the belts must be able to withstand a load of 14 . 7 kilonewtons , the equivalent of roughly 1 , 470 kilograms 根据国际汽联的标准8853 / 98 ，安全带的每个固定点必须能够承受14 . 7千牛顿的载荷，大约相当于1 , 470公斤的重量。
They hastily overgeneralized from the experiments during the eclipse of 1919 , and concluded that einstein had discovered a law of nature and had overthrown newton ' s physics 他们对1919年日食期间的实验过于轻率地概括，得出结论认为，爱因斯坦发现了自然的一个规律并且推翻了牛顿的物理学。
You may have something of a roosebelt , something of newton in yourself ; you may have something very much greater than either of those men manifested waiting your help to give it expression 你也许具有罗斯福的才能,牛顿的智慧,你也许具有比他们两人所显示的更为伟大的本领,在等待你把它们表现出来
Think of galileo ' s 17th ? century trial for his rebelling belief before the catholic church or poet william blake ' s harsh remarks against the mechanistic worldview of isaac newton 想想看， 17世纪伽利略因其叛逆性的信仰而遭到天主教会的审判，诗人威廉?布莱克对艾萨克?牛顿的机械世界观提出尖锐的批判。
Think of galileo ' s 17th ? century trial for his rebelling belief before the catholic church or poet william blake ' s harsh remarks against the mechanistic worldview of isaac newton 译文想想看， 17世纪伽利略因其叛逆性的信仰而遭到天主教会的审判，诗人威廉?布莱克对艾萨克?牛顿的机械世界观提出尖锐的批判。
Countless experiments and experiences , from the fabulous fall of the apple to the orbiting of the moon round the earth , from carousel to space travel , all are bearing witness to the victory of newton 无数的实验及生活经验，从传说中的苹果落地到月亮绕地球运行，从旋转木马到宇航，无一不在印证牛顿的胜利。
The fact that the apple fell down toward the earth and not up into the tree answered the question he had been asking himself about those larger fruits of the heavens , the moon and the planets 苹果会掉到地上而不是掉向天空，这个事实，回答了一直困扰牛顿的关于天空中那些比较大的“苹果” ，月亮，行星的问题。
