近期,西班牙的科学家开发出了一种能够让人们对外部声音“充耳不闻”的“静音斗篷”。该设备能够在不改变原有声波的波形和方向的情况下,使“斗篷”内获得静音效果。负责该研究的西班牙瓦伦西亚大学研究人员通过使用2D数学模型,在计算机中创建了这个静音斗篷模型。该装置由排列在一个22 5厘米宽的物体上的120个圆柱状物体组成,每个圆柱的直径为12毫 Recently, Spanish scientists have developed a “silent cloak” that allows people to “turn a deaf ear to the outside sound.” The device mutes the “cloak” without changing the waveform and orientation of the original sound wave. The University of Valencia researchers in charge of the study created the mute cloak model on a computer using a 2D mathematical model. The device consists of 120 cylindrical objects arranged on a 225 cm wide object, each cylinder having a diameter of 12 milli-square