同学们或许在影视中见过这样的场景:昏暗的岩洞中,无数的蝙蝠在飞舞穿梭,虽然空间狭窄复杂,蝙蝠数量多且分布密集,它们却从没发生碰撞.你们也许会发出惊叹:这些黑暗精灵眼睛的“视力”该有多好!可事实真相是,蝙蝠的视觉很差,简直就是个瞎子.它们是如何在黑暗中翩翩起舞的?什么是回声定位法蝙蝠的这种技术是物理学中“声音测距”方法中的一种,称为“回声定位法”.当声波碰到障碍物(如悬崖)时,它会反射回来,我们会 My classmates may have seen this scene in film and television: Countless bats flying through the dim caves, and they never collide though the space is narrow and complex, the bats are numerous and densely packed, and you may wonder: these The dark eyes of the dark elves “eyesight ” how good! The truth is that the bats are poor vision, is simply a blind man How do they dance in the dark What is the technology of echolocation bat Is one of the “sound ranging” methods in physics called “echo positioning.” When a sound wave hits an obstacle (such as a cliff) it reflects back and we will