单词：vibration displacement
单词：vibration displacement 相关文章
Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu
Scientific American(九)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
Scientific American(一)月
Easing Displacement through Development Last year there were more than 26-million people displaced within their countries by violence, conflict or natural disasters. A new report says development initiatives may help alleviate or even prevent displac
VOA标准英语2012年(十一月)
The International Organization for Migration reports a significant drop in the number of Haitians living in displacement camps. IOM reports for the first time since the catastrophic earthquake struck a year ago, the camp population in Haiti has gone
VOA标准英语2011年(一月)
1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车，
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Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w
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