Oh, sure, I see it now. The Doppler effect.

哦，我懂了，效应嘛。

In the past, Doppler has also picked up traffic, flying ants and bats.

在过去，都卜还捕捉到交通，飞蚁和蝙蝠。

I don't care if anybody gets it. I'm going as the Doppler effect.

我不管别人懂不懂，我就是要穿成效应。

The Doppler effect is the frequency shift heard as a source of sound approaches or recedes.

效应是当声源靠近或后退时听到的频率偏移。

Along with the sands, the plane also has radar in its nose, doppler radar in its tail.

除了这个设备之外，飞机机头还装有雷达，机尾装有雷达。

That means that its light will undergo a Doppler shift, and that can be detected.

这意味着它的光会经历频移，并且被探测到。

Researchers have developed a device that uses low-powered Doppler radar to decode the unique geometry of a user's heart...

研究人员研发了一种设备，用低功率的雷达来解析用户心脏的独特几何形状，。

A slight shift in the frequency, because of the Doppler effect, means its speed and direction can be measured too.

由于效应，返回信号的频率有微小变化，这就意味着飞行器的速度和飞行方向也被测量出来。

This is very similar to the Doppler redshift I've talked about in earlier episodes, and is called a gravitational redshift.

这和我之前讲过的红移非常相似，被称为引力红移。

But you would experience a cool Doppler effect around you.

但是你会在你周围体验到很酷的效应。

Doppler's showing air in the left ventricle.

波显示左心室有空气。

The plane also has radar in its nose, Doppler radar in its tail.

飞机上还有雷达，机头有雷达，机尾有雷达。

Finally, we covered decibels, as well as the Doppler effect.

最后，我们还谈到了分贝 效应。

The Doppler effect isn’t unique to sound waves, though -- it happens with light, too.

不过，效应并不是声波独有的——它也会发生在光中。

Another way is to measure the Doppler shift in a star's light due to reflexive motion as the planet orbits.

另一种方法是测量恒星光线的频移，这种频移是由行星绕轨道运行时的自反运动引起的。

The Doppler effect isn't unique to sound waves, though -- it happens with light, too.

效应不仅限于波 不仅有声音，还有光。

You're probably familiar with the Doppler effect; the change in pitch when, say, a motorcycle goes by.

你们能熟悉效应；即音高的变化，例如摩托车经过时的音高变化。

You could put it in the tape deck you used to teach us about the doppler effect.

你把这个放入磁带机你之前用它教过我们效应。

If we know the planets' mass from the star's Doppler shift, we can use the planet's size to calculate its density.

如果我们通过恒星的频移知道行星的质量，我们就用行星的大小来计算它的密度。

For example, we created this running sound with frequent gaps so that people with visual impairments could locate their robots using the Doppler effect.

例如，我们创建了这种带有频繁间隙的运行声音， 便有视觉障碍的人使用效应定位他们的机器人。