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給物理學及整個自然科學的發展，給18世紀的工業、社會經濟變革及機械唯物論思潮的發展以巨大影響。這里只簡略勾畫一些輪廓。的哲學觀點與他在力學上的奠基性成就是分不開的，一切自然現象他都力圖力學觀點加以解釋，這 。力的量綱為MLT-2。中文名力外文名force提出者艾薩克·提出時間1686年應用學科力學適用領域范圍力學符號F單位（N）三要素作用點，大小，方向矢量性矢量作用效果使物體發生形變或運動狀態改變測量工具彈簧秤或彈簧測力
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并對其他學科的發展產生了巨大影響。定律的內容伽利略曾提出過，后來R.笛卡兒作過形式上的改進，伽利略也曾非正式地提到第二定律的內容。第三定律的內容則是在總結C·雷恩、J·沃利斯和C·惠更斯等人的結果之后得出的。牛 密斯神智學（Hermeticism）中粒子相吸互斥思想的神秘力量來解釋，替換了先前假設以太存在的看法。擁有許多煉金術著作的經濟學約翰·梅納德·凱恩斯曾說：“不是理性時代的人。
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一種衡器。由支點（軸）在梁的中心支著天平梁而形成兩個臂，每個臂上掛著一個盤，其中一個盤里放著已知的物體,另一個盤里放待測物體，固定在梁上的指針在不且指向正中刻度時的偏轉就指示出待測物體的。天平是一種等臂杠桿。天平是一種衡器，是衡量物體的儀器。它依據杠桿原理制成，在杠桿的兩端各有一小盤，一端放砝碼，另一端放要稱的物體，杠桿裝有指針，兩端平衡時，兩端的（重量）相等。現代的天平，越來越精密，越來越靈敏，種類也越來越多。我們都知道，有普通天平、分析天平，有常量分析天平、微量分析天平、半微量分析天平，等等。中文名天平外文名balance或auncel或scale出現時間大約在公元前5000年以前原理杠桿原理性質衡器目錄1發展歷史2基本原理3現代天平4天平發展歷史5特殊天平6使用7使用注意8問題及對策發展歷史編輯根據紙草書的記載。律給出了力的定量的定義，即力等于動量的時間變率；如果不變，力也等于乘加速度。第三定律指出，對于每一個力而言，必有一大小相等方向相反的反作存在。它指出所有的力都是成對的。
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射率。的這一重要發現成為光譜分析的基礎，揭示了光色的秘密。還曾把一個磨得很精、曲率半徑較大的凸透鏡的凸面，壓在一個十分光潔的平面玻璃上，在白光照射下可看到，中心的點是一個暗點，周圍則是明暗相間的同心 通過運動或發酵而”；也是硫磺、炭等粒子相互猛烈撞擊、分解、放熱、的，等等。這種機械觀，即把一切的運動形式都歸為機械運動的觀點，把解釋機械運動問題所必需的時空觀、原子論、由初始條件可以決定以后
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時狀態以及內部各部分間的相互作用和與它周圍之間的相互作用可預言將要發生的運動。彈學研究彈性由于受到外力的作用或溫度改變等原因而發生的應力、形變和位移的一門學科，故又稱彈性理論。彈學通常所討論 一向被認為是個，也是偉大的近代科學家，是一個理性者，他教導我們作出冷靜的思考和無偏的推理。可是現在我要說，我不認為如此，我不認為任何人在看完那一箱文件之后，還會把他看成是那樣一位道德高尚的偉人。”萊布尼
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的變化量。數學教授席位。在那以前，劍橋或牛津的所有成員都是經過任命的圣公會牧師。不過，盧卡斯教授之職的條件要求其持有者不得活躍于教堂（大概是如此可讓持有者把更多時間用于科學研究上）。認為應免除他擔任工作的條件