标签：蝙蝠 相关文章

科学美国人60秒 SSS Windows Vex Bats' Echolocating Abilities

Windows Vex Bats' Echolocating Abilities 干扰蝙蝠回声定位的烦人窗 Just as humans understand the shape of our surroundings by how light reflects off objects, bats use reflections of sounds they produce insteadwhats called echolocation. But

发表于:2018-12-02 / 阅读(86) / 评论(0) 分类 2017年Scientific American(九)月

科学美国人60秒 SSS Cave Dwellers Battled Bed Bug Bites, Too

Cave Dwellers Battled Bed Bug Bites, Too古人也挨臭虫叮 Picture a prehistoric human encampment, in a cave. What do you see? Maybe some animal hides, bones from last night's dinner, a small fire? But what you might not picture are the other cave

发表于:2019-01-20 / 阅读(86) / 评论(0) 分类 2017年Scientific American(四)月

科学美国人60秒 SSS 人类回声器原理类似蝙蝠回声

Human Echolocators Use Tricks Similar to Bats Many bats use a system similar to sonar to navigate in the dark. They send out high frequency sound, sometimes as clicks, and get information about their surroundings by the timing and quality of the soun

发表于:2019-02-14 / 阅读(64) / 评论(0) 分类 2018年科学美国人3月

英语听力文摘 English Digest 327、吸血蝙蝠能挽救生命？

Bat Spit 蝙蝠的唾液 Anyone who reads gothic fiction will tell you that vampires are bad news. People who read modern medical journal s , however, might disagreein fact, they think vampires just might help save lives. The kind of vampire Im talki

发表于:2019-02-24 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest
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