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我国古代就有燧人氏钻木取火的传說,可见人类在很早以前就发现了摩擦生热的現象。恩格斯說道:“人們只是在学会了摩擦取火之后,才第一次使某种无生命的自然力为自己服务”(自然辯証法,人民出版社,83頁)。实际上,人类发明了火以后,才摆脱了茹毛飲血的原始生活,而开始进入征服自然的新时代。随着历史的发展,人类在生产实践斗爭中,不断改进对火的使用方法,同时也增进了对热的理性认識。恩格斯說道:“摩擦取火的过程还是片面的。机械运动通过这个
In ancient China, there was the legendary firewood firewood Sunstrong, we can see that human beings found a long time before the phenomenon of friction heat. Engels said: “It is only for the first time after people learn how to use friction and take fire that they can make some inanimate natural forces serve themselves” (Dialectics of Nature, People’s Publishing House, p. 83). In fact, after the invention of fire, human beings got rid of primitive life in which they had to drink their blood and began to enter a new era of conquering nature. With the development of history, mankind has continuously improved the methods of using fire in the struggle for production practice, and at the same time, he has also promoted the rational understanding of heat. Engels said: "The process of friction and fire is one-sided .Machine movement through this