为什么倒热水和冷水时发出的声音不同？
Why do hot and cold water sound different when poured?
AI总结：
本研究探讨了倒热水与冷水声音差异的物理机制，通过频谱分析和高速摄影实验发现，热水产生更多大气泡引发 Minnaert 共振，导致其声音具有更显著的低频成分，从而解释了听觉差异。
摘要：
实证研究表明，人类具备一种非凡的能力：仅凭倒水时的声音就能辨别一杯水是热的还是冷的。然而，支配热水与冷水声学特征差异的潜在物理机制仍有待破解。在本文中，我们进行了一系列实验，以提取对比温度下倒水声音的内在特征。我们的频谱分析结果显示，相较于冷水，倒热水的声音表现出更显著的低频成分和减弱的高频成分。高速摄影证据阐明，倒热水能够产生更多且体积更大的气泡。我们推测，由热水中这些较大的夹带气泡产生的 Minnaert 共振导致了更低频率的声学特征，从而构成了倒热水与冷水之间听觉差异的基础机制解释。
英文摘要：
Empirical studies have demonstrated that humans possess the remarkable capacity to distinguish whether a glass of water is hot or cold solely by the sound of pouring it. However, the underlying physical mechanisms governing the disparities in the acoustic signatures of hot versus cold water remain to be deciphered. In this paper, we conducted a series of experiments to extract the intrinsic features of pouring sounds at contrasting temperatures. The results of our spectral analysis revealed that the sound of pouring hot water exhibited more pronounced low-frequency components and diminished high-frequency components relative to cold water. High-speed photographic evidence elucidated that pouring hot water could generate larger air bubbles in greater abundance. We conjecture that the Minnaert resonance arising from these larger entrained bubbles in hot water produces a lower-frequency acoustic signature, thereby constituting the foundational mechanistic explanation for the auditory distinction between pouring hot and cold water.
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。
