쉐도잉 연습: Why California's musical road sounds terrible - 영상으로 영어 말하기 배우기

If you drive down a certain stretch of highway in the California desert, you will hear music.

It's supposed to sound a little bit like this.

But instead, it sounds like this.

That was the musical road of Lancaster, California, and as you may have heard, it's a little bit out of tune.

A lot of money was spent on that road.

It was a publicity stunt for a car company who wanted to show off how clever they are.

And doing the calculations for something like that isn't really difficult.

A musical note is a vibration in the air at a particular frequency, and those vibrations can be made by a violin string or synthesized by a computer,

or, in this case, made by vehicle tyres hitting grooves in the road.

The closer the grooves are, the faster the vibrations, and the higher the note.

So take the speed limit, divide by the frequency of the note you want, and that's how often there should be a groove in the road.

And if people travel at the wrong speed, well, it shouldn't really matter.

It'll just be like slowing down or speeding up any other bit of music.

It'll be in the wrong key, but it'll still sound right to most people's ears.

It won't sound like that mess.

So, what went wrong?

At this point, I'm indebted to David Simmons Duffin, an assistant professor of physics at Caltech, whose interests include quantum field theories and playing Baroque violin,

because he was, as far as I can tell, the very first person to figure out what went wrong.

And the problem was probably the English language.

Whoever did the calculations said that the grooves should be so far apart, let's say four inches for the first note, and they meant that there should be a groove every four inches.

But whoever gave the instructions to the work crew said that the grooves should be four inches apart,

and that was interpreted as four inches between the end of one groove and the start of the next one.

itself.

But your ears definitely do include it.

The highest note on that section of the William Tell Overture should be one octave higher than the lowest.

That means the frequency should be doubled and the grooves should be half the distance apart.

And they are if you don't include the width of the groove itself.

That error means that every note is distorted not by a fraction of its value, like if you're travelling at the wrong speed, but by a constant amount, by the width of the grooves.

The higher the note, the greater the effect of that distortion.

And the result is the mess that you are about to hear for a second time.

And the really strange part?

This is the second musical road built in Lancaster, California.

The first one, built by the car company, was too close to residents who complained about the constant noise, and probably this note here.

So the city paved over it and rebuilt it to the exact same wrong blueprints.

That's a take.

That is a take right there.

And in order to celebrate that take, I'm going to put my foot down.

This is an SUV.

It doesn't do that.

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

쉐도잉 연습: Why California's musical road sounds terrible - 영상으로 영어 말하기 배우기

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