शैडोइंग अभ्यास: Science Fair: Gravity and Free Fall - वीडियो के साथ अंग्रेजी बोलना सीखें
पाठ बनाया जा रहा है...
1
Hey guys, it's me, Samara.
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And I'm Brandon.
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And welcome back to the Adventure Academy Science Fair.
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Hey, Samara.
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I've had a question that's really been bothering me.
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What's that?
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Oh, that's a weird one.
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I was reading about in an article how a scientist in the late 1500s by the name of Galileo, cool name, said that if two objects dropped,
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one heavy and one light, that gravity would pull them down at the same exact speed.
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That's correct, but what's got me confused is this.
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If I drop the rock and the feather at the exact same time, the rock always falls faster.
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So how could Galileo have been right?
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Ah, I see.
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The thing is, when you drop things here on Earth, gravity isn't the only force acting on them.
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While the force of gravity is pulling them down, The air below them is pushing them up.
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Scientists call this force air resistance.
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And back in 1971, astronaut David Scott did the experiment on the moon by dropping a feather and his rock hammer.
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Since the moon has no air, the feather and the hammer hit the ground at the same time, even though the hammer was much heavier.
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That seems like something I really want to try out for myself.
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The eagle has landed.
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Well, we might not be able to do it with the feather and the rock, but we could do it with a book and a piece of paper.
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Go on.
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Okay, hold the book in one hand
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and the paper in the other at the exact same height and drop them at the same time.
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You see?
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The book fell down because it's heavier.
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Not so fast, oh skeptical one.
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Put the paper on top of the book.
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And then see what happens.
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Okay.
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What?
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Whoa, whoa, whoa!
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How did that happen?
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Science.
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When you put the paper on top of the book, the book blocked the air from painting the bottom of the paper.
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This got rid of the air resistance on the paper.
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Okay, you convinced me, but I still would like to do this on the moon.
38
Anyway, there you guys go.
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Another cool science mystery solved with the help of experiments.
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See you guys next time.
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Bye!
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इस पाठ की शब्दावली और बोलने के सुझाव
इस वीडियो में शैडोइंग के लिए 41 वाक्य और 378 शब्द हैं। बोला गया हिस्सा 2:32 लंबा है। वक्ता लगभग 149 शब्द प्रति मिनट की स्थिर गति से बोलता है, जो शैडोइंग के लिए आरामदायक है। 86% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं; बाकी शब्द अभ्यास से पहले देख लेना अच्छा रहेगा।
इस वीडियो की मुख्य शब्दावली
वीडियो के 11 कम प्रचलित शब्द, उच्चारण और अर्थ के साथ:
- feather /ˈfɛðə/ (संज्ञा) — पंख, पर. A branching, hair-like structure that grows on the bodies of birds, used for flight, swimming, protection and display.
- gravity /ˈɡɹævɪti/ (संज्ञा) — गुरुत्व, गंभीरता. Of an activity such as a ceremony, a person's conduct, etc.: the quality of being deeply serious and solemn, especially in a dignified manner; seriousness…
- hammer /ˈhæmɚ/ (संज्ञा) — हथौड़ा. A tool with a heavy head and a handle used for pounding.
- whoa /woʊ/ — वाह. Stop (especially when commanding a horse or imitative thereof); calm down; slow down.
- experiment /ɪkˈspɛɹ.ə.mənt/ (संज्ञा) — प्रयोग, तजुर्बा. A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of…
- scientist /ˈsaɪəntəst/ (संज्ञा) — वैज्ञानिक, आलिम. One whose activities make use of the scientific method to answer questions regarding the measurable universe. A scientist may be involved in original research…
- confused /kənˈfjuːzd/ (विशेषण) — भ्रमित. unable to think clearly or understand
- mystery /ˈmɪs.t(ə.)ɹi/ (संज्ञा) — रहस्य, राज़. Something secret or unexplainable; an unknown.
- solve /sɒlv/ (क्रिया) — सुलझाना, हल करना. To find an answer or solution to a problem or question; to work out.
- eagle /ˈiːɡəl/ (संज्ञा) — गरुड, चील. Any of several large carnivorous and carrion-eating birds in the family Accipitridae, having a powerful hooked bill and keen vision.
- astronaut /ˈæstɹəˌnɔt/ (संज्ञा) — अंतरिक्ष यात्री, खगोलयात्री. A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.
वीडियो में आने वाली फ़्रेज़ल वर्ब
- fall down /fɔl ˈdaʊn/ (क्रिया) — गिरना, ध्वंस. To fall to the ground. To collapse.
ध्यान देने योग्य उच्चारण
वक्ता 3 बार संक्षिप्त रूपों का प्रयोग करता है, जैसे I'm, I've, isn't। इन्हें वैसे ही छोटा बोलें जैसा आप सुनते हैं।
- “th” की ध्वनियाँ: feather /ˈfɛðə/, bother /ˈbɑðɚ/
इस वीडियो से अभ्यास कैसे करें
- पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
- सामान्य गति पर एक-एक वाक्य की शैडोइंग करें और हर वाक्य तब तक दोहराएँ जब तक आपकी लय वक्ता से न मिल जाए।
- अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर feather, gravity, hammer जैसे शब्दों पर ध्यान दें।
शैडोइंग तकनीक क्या है?
शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।