Having the antenna at the bottom means less radio frequency waves are flooding the sensors.

将天线安置在底部意味着传感器会探测到最少的电磁波。

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That night, the researchers measured one particular sleep phenomenon: the brief bursts of high-frequency waves known as “sleep spindles.”

那天晚上，研究人员研究了一种特殊的睡眠现象：出现的短暂高频率脑电波，即众所周知的“睡眠纺锤波”。

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Scientists are mostly stumped as to how the radio frequency waves emitted by cellphones, which lack the punch to break chemical bonds or disrupt DNA, might cause cancer.

科学家们主要搞不懂的是，手机所释放的无线电波，连打断化学键或扰乱dna的冲击力都没有，又怎么可能导致癌症呢？

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So, we should be able to look at different types of waves and be able to figure out something about both their frequency and their wavelength and know the relationship between the two.

我们可以看到,不同的波并从它们的,波长和频率中,获得一些信息，我们知道。

麻省理工公开课 - 化学原理课程节选

So, it's up on this screen here now, so we'll work on the other one. If you can identify which of these statements is correct based on what you know about the relationship between frequency and wavelength and also just looking at the waves.

它们之间的关系,现在在大屏幕上了,鉴于你们知道,频率和波长的关系,看到这些波你们来,判断下这些说法是否正确。

麻省理工公开课 - 化学原理课程节选

That, they say, gives them access to more telling, high-frequency waves that say a lot more about cognitive intentions.

ENGADGET: Test subjects with electrode implants use mind control to move a cursor

High-frequency waves have short wavelengths.

ECONOMIST: Archaeology

Recent discoveries, however, have such medgadgets being powered by photons, hip hop and now high-frequency radio waves.

ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job