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首先说明一下,极限法是一种直观、简捷的科学方法。在我们已学过的物理规律中,时常能看到科学家们利用这种思维方法得到的物理规律。如伽利略在研究自由落体运动规律时,先证明从斜面上滚下的小球做匀变速运动,然后又把结论外推到斜面倾角增大到900的极限情况——小球自由下落,从而用极限思维法间接证明了自己对小球自由落体运动规律的论断是正确的。开尔文把查理定律外推到压强为零这一极限值,而引入了热力学温标??可见在物理学的发展和物理问题
First of all, the limit method is an intuitive and simple scientific method. In the laws of physics that we have learned, we can often see the laws of physics that scientists use this way of thinking. For example, when Galileo studied the law of free-fall movement, it proved that the ball rolling down from the ramp made a uniformly variable speed movement, and then extrapolated the conclusion to the limit where the inclination of the bevel increased to 900 - the free fall of the ball, The limit of thinking indirectly proves that the law of motion of free fall ball is correct. Kelvin extrapolates Charlie’s law to the limit of zero pressure and introduces a thermodynamic temperature scale that can be seen in the development and physics of physics