19世纪40年代,在物理学史上,正是能量转化与守恒定律发现的时期。我们知道,迈尔和焦耳各自独立地对能量转化与守恒定律的建立作出了相应的贡献。迈尔堪称能量守恒定律的主要的也是最早的奠基 In the 1940s, in the history of physics, it was the period when the laws of energy conversion and conservation were discovered. We know that Meyer and Jouh independently contributed to the establishment of the law of energy conversion and conservation independently. Mayr called the law of conservation of energy is also the earliest foundation