第一个实验其实是区别质量和重量.中国科技馆的副研究员赵洋说,这个实验利用了牛顿第二定律,——“物体加速度的大小跟物体受到的作用力成正比,跟物体的质量成反比.”而这个定律在太空中有很强的应用性.这位中国科学院科学技术史博士举例说,美国有一次航天器对接时,需要对接力度恰到好处,这两个航天器质量一致,又可以控制速度,力度得到了很好的控制.第二个单摆实验,也与地心引力有关.上海延安 The first experiment is actually to distinguish between quality and weight.China Science and Technology Museum Associate Professor Zhao Yang said that this experiment uses the Newton’s second law, - “object acceleration is proportional to the size of the object with the force, with the object’s The inversely proportional to the mass. ”This law has strong applicability in space. The Chinese Academy of Sciences, for example, the history of science and technology, for example, the United States had a spacecraft docking, the need to docking strength just right, the two spacecraft quality consistent , But also can control the speed, strength has been well controlled.The second pendulum experiment, but also with the gravity .Shanghai Yan’an