쉐도잉 연습: Kinematic viscosity - 영상으로 영어 말하기 배우기
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1
This is dynamic viscosity.
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This is kinematic viscosity.
3
What's the difference?
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Dynamic viscosity measures a fluid's resistance to shear or flow, and its SI unit is pascal second.
5
Kinematic viscosity is dynamic viscosity divided by fluid density, and its SI unit is square meter per second.
6
Dynamic viscosity tells us how strongly a fluid resists deformation, while kinematic viscosity also considers the fluid's density.
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Easy trick.
8
Dynamic is resistance to shear.
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Kinematic is dynamic viscosity divided by density.
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Vocabulary and speaking notes for this lesson
This speaking lesson is built on the video “Kinematic viscosity”. This video has 9 sentences and 78 words to shadow. The speech runs for 0:32.
Key vocabulary in this video
13 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| dynamic adjective | /daɪˈnæm.ɪk/ | Changing; active; in motion. |
| density noun | /ˈdɛn.sə.ti/ | A measure of the mass of matter contained by a unit volume. |
| fluid noun | /ˈflu.ɪd/ | Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma. |
| divide verb | /dɪˈvaɪd/ | To split or separate (something) into two or more parts. |
| trick noun | /ˈtɹɪk/ | Something designed to fool, dupe, outsmart, mislead or swindle. |
| strongly adverb | /ˈstɹɔŋli/ | In a strong or powerful manner. |
| resist verb | /ɹɪˈzɪst/ | To attempt to counter the actions or effects of. |
| metre noun | /ˈmiːtəɹ/ | The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in… |
| viscosity noun | /vɪsˈkɑsɪti/ | The state of being viscous. |
| kinematic adjective | /kɪn.əˈmæt.ɪk/ | Of or relating to motion or to kinematics. |
| shear verb | /ʃɪɚ/ | To remove the fleece from (a sheep, llama, etc.) by clipping. |
| deformation noun | /ˌdɛfəˈmeɪʃən/ | Physically so. |
| pascal noun | /pæˈskæl/ | In the International System of Units, the derived unit of pressure and stress; one newton per square metre. Symbol: Pa. |
Pronunciation to watch
- The “sh” and “zh” sounds: shear /ʃɪɚ/, deformation /ˌdɛfəˈmeɪʃən/
- Long words — get the stress right: viscosity /vɪsˈkɑsɪti/, kinematic /kɪn.əˈmæt.ɪk/, deformation /ˌdɛfəˈmeɪʃən/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
- Record yourself and compare with the original, paying attention to words like dynamic, density, fluid.
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.