伽利略落体定律的声学证明
An Acoustic Demonstration of Galileo's Law of Falling Bodies
摘要：
提出了一种分析下落运动时间的声学方法。一个球从测量的高度落下。投放装置在释放后的一段确定的时间（大约14毫秒）内发出明显的声音。当球撞击下面的表面时，它随后发出第二个明显的声音。这些声音是用放置在表面上的麦克风捕获的，并且在声波波形中很明显。在每个高度（0.25米、0.50米、0.75米和1.00米），测得的下落时间与落体定律预测的下落时间一致，典型精度为4.3 ms。
英文摘要：
An acoustic method is presented for analyzing the time of falling motion. A ball is dropped from a measured height. The dropping device makes a distinct sound a well-determined time (roughly 14 milliseconds) after release. The ball subsequently makes a second distinct sound when it hits the surface below. These sounds are captured with a microphone resting on the surface and are readily apparent in the acoustic waveform. At each height (0.25m, 0.50m, 0.75m, and 1.00m), the measured drop time agrees with the drop time predicted by the law of falling bodies with a typical accuracy of 4.3 ms.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
