쉐도잉 연습: Water Flow and Water Pressure: A Live Demonstration - 영상으로 영어 말하기 배우기
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Hi folks, a lot of people out there, probably yourself included, if you're homeowners you deal with potentially what you call water pressure problems
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and people don't understand that it's probably actually a water volume problem.
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It's not a pressure problem and I'm going to demonstrate that for you in very simple terms.
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I'm not a scientist.
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I'm not going to get in any kind of technical jargon that you might not understand and I probably wouldn't understand.
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So we have pressure gauges on two different lines here.
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One's on an inch and a half line.
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It's showing about 30-35 pounds of pressure and this is on a three-quarter line.
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You know there might be a small kink in one of the lines.
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It should be identical.
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This is showing 40 pounds of pressure, but they're being fed by the same exact source.
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So the pressure is the same, but the volume is vastly different.
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So I'm going to give you a quick example, probably the only technical ease I'm going to get into.
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If you have a one inch water service line in your home,
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it's measured by how many gallons per minute it can provide, which is eight gallons per minute, which is barely enough for a one-family home,
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according to New York City sizing tables.
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An inch-and-a-quarter line, which is larger, inch and a quarter, one inch, maybe cost $150 difference if you completely change your water line,
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gives you 75% more water, gives you 14 gallons per minute for about $150.
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Now I'm going to get in, that might be the last technical thing I'm going to show you.
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So, 40 pounds of pressure.
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Okay.
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Now, because it's interesting, because this hose is small,
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it still has resistance to the water flowing through.
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It still registers about 15 pounds of water.
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There's an interesting point.
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When you restrict the flow of water, increase the pressure and you know that
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if you put your finger over the opening of your garden hose well that's more pressure
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but it's less water and that's the same principle for
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when you're taking a shower you have a shower head it
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makes the water have more pressure same thing with your sink same thing like I said with the garden hose
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so we're gonna shut this off now what you're going to see,
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which should be interesting, this is an inch and a half line,
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pretty much identical water pressure.
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When I turn this on, you remember how this was spraying out?
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This has no restriction on it.
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That's all you're going to get out of it.
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Because the flow of water is not being restricted, it's less pressure unless I restrict the flow.
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Then I get more pressure.
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You'll also notice that the gauge went down to zero.
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Why did it go down to zero?
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because there's no restriction on the flow of water.
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The gauge drops to zero.
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Three-quarter inch hose, it drops to about 15 because the garden hose is still restricting the flow.
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So that's the beginnings of the difference between pressure and volume.
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If you have a three-quarter inch line, you're not going to service your home, even though it looks like more pressure.
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An inch and a half line, you could have a three-family home.
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So what we're going to do is, you think same pressure, it should fill up a water bottle in the identical amount of time.
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Except for the difference in gallons per minute that the inch and a half line will provide, the flow.
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So this is the live part of the demonstration, a little bit of an unscientific demonstration, but I think it'll show that a lot of people,
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a lot of folks out there, if pressure is the same, the amount of water is the same.
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This is the definitive, a definitive test to just easily show you, not true.
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We'll give the 3 quarter inch line a bit of a head start
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and we'll see what it takes to fill the water bottle.
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Inch and a quarter line, I'm going to get a little wet.
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I'm going to get real wet.
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Look at the difference.
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Look at the difference.
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Over double, over double.
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Same water pressure, over double the amount of water.
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Okay so from these simple demonstrations you should clearly understand that the gallons per minute,
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the flow rate, that's what increases and improves your quality of life.
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You have enough water, enough water for all your fixtures.
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Pressure is a separate and distinct issue.
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It's not usually the problem you're going to deal with.
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this should really clearly be an example as to why that's true.
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Thank you for listening and I hope that helped you out there.
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이 비디오로 말하기 연습을 해야 하는 이유는?
이 비디오는 물의 흐름과 압력에 대한 실시간 시연을 통해 중요한 개념을 쉽게 설명합니다. 이러한 설명은 영어 학습자에게 과학적 주제를 이해하는 데 도움이 됩니다. 설명자의 간단한 언어 사용은 여러분이 새로운 어휘를 배우고, 복잡한 문장을 이해하는 데 큰 기여를 합니다. 또한, 다양한 어조와 강세를 통해 실제 대화 상황을 접할 수 있어, 영어 발음 교정과 유튜브 영어 공부에 매우 유익합니다.
문맥 속 문법 및 표현
- It gives you 14 gallons per minute. - 'gives'라는 동사를 통해 '제공하다'는 의미를 쉽게 이해할 수 있습니다.
- You remember how this was spraying out? - 과거형 질문을 통해 이 비디오에서 시연한 내용을 상기시킵니다.
- If you completely change your water line... - 조건절을 사용하여 가정적인 상황을 표현합니다.
- When you restrict the flow of water... - 시간 부사절을 통해 원인과 결과를 연결하는 문장을 배울 수 있습니다.
일반적인 발음 함정
이 비디오에서 주의할 만한 발음 함정은 ‘pressure’와 ‘volume’입니다. 특히, ‘pressure’는 발음 시 강세가 중요한 단어로 정확한 발음을 연습하면 도움이 됩니다. 또한, shadowspeaks와 shadow speak와 같은 단어를 연습함으로써 영어를 더 유창하게 구사할 수 있습니다. 이러한 단어들은 실생활에서도 자주 사용되므로, 반복적으로 연습하여 여러분의 발음과 억양을 개선하는 것이 좋습니다.
이 비디오를 통해 단순히 내용만 이해하는 것이 아니라, 자연스럽게 영어로 소통할 수 있는 능력을 키울 수 있습니다. 따라서, 여러분의 영어 실력 향상에 큰 도움이 될 것입니다.
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | being fed · being restricted |
| 관계절 who / which + 절 — 사람이나 사물에 대한 추가 정보 | provide, which is · line, which is |
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.