Shadowing Practice: The Goofiest Space Experiment In History - Learn English Speaking with Video
Creando lección...
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Did you know that this is the biggest object humans have ever sent into space?
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It may not look like it, but this is actually a 20 kilometer long piece of wire.
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That's as tall as the Empire State Building.
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Well, 45 of them.
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But what's he doing there?
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It must be the universe's longest string telephone!
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Hello?
8
Hello?
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Prepare for invasion of Earth- Oh, that's not good.
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To actually understand what it's for, we need to look at Faraday's Law of Induction.
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If I move this loop of wire through this magnetic field, a small current is produced.
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You can increase the power generated by using more wire and moving it faster.
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In fact, stick a propeller on the end and now you have yourself a wind turbine.
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This concept made the big brains at NASA go...
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You know how, like, the Earth is like, basically a giant magnet?
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Yeah, bro, totally.
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What if we use like.. a super long wire, bro?
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Huh?
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So 400 million dollars later, this is the plan they came up with.
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Earth has big magnetic field, so we send spaceship with big wire.
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But Earth magnetic field very weak, so we send even bigger wire.
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Then we move spaceships super fast to generate power.
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Then we rule the galaxy.
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The system was called the TSS-1, or Tethered Satellite System.
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1. It had a base satellite, a sub-satellite, and a 20 kilometer long conductive tether connecting them both acting as the wire.
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Now you may have noticed something wrong here.
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In our original example we used a loop of wire because electricity needs a closed loop to flow, and this tether is not a loop.
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But electricity is really just the flow of electrons, and turns out there's a layer of the Earth's atmosphere called the ionosphere, which has a bunch of free electrons just floating around.
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So using a fancy electron collector and emitter, NASA designed a system to create electron flow using the ionosphere, completing the loop.
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In 1992, TSS-1 was launched aboard Space Shuttle Atlantis.
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It successfully reached the ionosphere, and it was finally time to unfurl the 20 kilometer long tether.
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Uh, Houston, we have a problem.
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This screw isn't gonna cut it.
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Okay, swap them out then.
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Hey, we should test everything again to make sure it works, right?
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Nah, it should be good.
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It was not good.
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That beefy screw caused the tether reel to jam up but a whopping 260 meters.
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Pretty much 1% of its maximum length.
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Moral of the story, always test and retest after making any design changes.
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Quite the expensive lesson to learn, but surely they'll get it next time, right?
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Right!
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Ooh, we made it past 260 meters this time! and the tether successfully deployed to its full length of 20 kilom- Um,
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Houston, we have a pro- It was so close, but when the tether reached 19.7 kilometers,
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a small defect in the insulation near the bottom led to a large arc that melted it.
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And that's how we ended up here.
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A giant space noodle floating in the sky.
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It was sighted all over the world, like in Australia, in Hawaii, in Southern USA...
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And a few weeks later, it re-entered the atmosphere, cooking the space noodle once and for all.
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But the big question is, did the experiment work though?
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Well, NASA managed to collect some data, and the tether generated almost 3.5 kilowatts of electrical power.
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Enough to run three toasters at once!
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Okay, that doesn't seem like much, but for context, most small satellites only need one toaster amount of power.
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But despite this, the tethered satellite system missions were abandoned.
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And the results weren't publicized.
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Well, apart from being roasted by the media.
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I guess it is kind of embarrassing to have your mistake plastered in the sky for the whole world to see, but I really hope they try again.
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Because I imagine a night sky in the future where space noodles hang from every spaceship and satellite.
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Hashtag, bring back space noodles.
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Please, I haven't seen the sun in years.
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See you next time!
📺 Mismo canal
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Vocabulario y notas de pronunciación para esta lección
Este vídeo tiene 61 frases y 678 palabras para practicar shadowing. La parte hablada dura 4:33. El hablante mantiene un ritmo constante de unas 149 palabras por minuto, cómodo para el shadowing. Solo el 76 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.
Vocabulario clave de este vídeo
15 palabras del vídeo que vale la pena aprender, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| wire sustantivo | /ˈwaɪɚ/ | alambre, hilo |
| satellite sustantivo | /ˈsætəlaɪ̯t/ | satélite |
| loop sustantivo | /luːp/ | lazo, lazada |
| generate verbo | /ˈd͡ʒɛn.ə.ɹeɪt/ | generar |
| magnetic adjetivo | /mæɡˈnɛtɪk/ | magnético |
| atmosphere sustantivo | /ˈætməsˌfɪɹ/ | atmósfera, aire |
| successfully adverbio | /səkˈsɛs.fə.li/ | exitosamente |
| meter sustantivo | /ˈmitəɹ/ | medidor, contador |
| float verbo | /fləʊt/ | flotar |
| electron sustantivo | /ɪˈlɛk.tɹɑn/ | electrón, negatrón |
| lesson sustantivo | /ˈlɛs.ən/ | lección |
| moral adjetivo | /ˈmoɹəl/ | moral |
| telephone sustantivo | /ˈtɛləˌfoʊn/ | teléfono |
| layer sustantivo | /ˈleɪ̯ɚ/ | capa, tongada |
| string sustantivo | /stɹɪŋ/ | cuerda, mecate ("cordel" or "cuerda") |
Phrasal verbs que vas a escuchar
| Palabra | Significado |
|---|---|
| come up with verbo | ingeniar, ingeniarse |
| end up verbo | terminar, ir a parar |
| turn out verbo | resultar |
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | is produced · was called · was launched |
| Present perfect have/has + participio pasado — una acción pasada que sigue importando ahora | have ever sent · haven't seen |
Pronunciación a tener en cuenta
El hablante usa 6 contracciones y formas reducidas, como doesn't, gonna, haven't. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “sh” y “zh”: invasion /ɪnˈveɪʒən/, hashtag /ˈhæʃˌtæɡ/, insulation /ˌɪnsəˈleɪʃən/
- Palabras largas — cuida el acento: successfully /səkˈsɛs.fə.li/, electricity /ɪˌlɛkˈtɹɪsɪti/, electrical /ɪˈlɛktɹɪkəl/, experiment /ɪkˈspɛɹ.ə.mənt/, insulation /ˌɪnsəˈleɪʃən/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
- Grábate y compara con el original, prestando atención a palabras como wire, satellite, loop.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.