ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: How To Terraform Venus (Quickly)

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Leaving Earth to find new homes in space is an old dream of humanity, and will sooner or later be necessary for our survival.

The planet that gets the most attention is Mars,

a small, toxic and energy-poor planet that just about seems good enough for a colony of depressed humans huddled in underground cities.

But what if we think bigger?

What if we take Venus, one of the most hostile and deadly places in the solar system, and turn it into a colony.

Not by building lofty cloud cities, but by creating a proper second Earth.

It might be easier than you think.

Venus is by far the hottest planet in the solar system, with a surface temperature of 460 degrees Celsius, hot enough to melt lead.

This heat is due to the most extreme greenhouse effect in the solar system.

CO2 is great at trapping heat.

Even a rise from 0.03% to 0.04% in Earth's atmosphere is heating up our planet right now.

Venus's atmosphere is 97% CO2.

Also, Venus's atmosphere is 93 times denser than Earth's.

Standing on Venus's surface would feel like taking a dive about 900 meters deep into the ocean.

The pressure would kill you instantly.

It's a truly horrible place, so why should we even bother?

First and foremost, Venus is almost as big as Earth and has 90% of its surface gravity.

Surface gravity is a big problem when colonizing the solar system

because it's very likely that long stays in low-gravity places will have negative health effects.

Venus's size means it could be the second largest habitat in the solar system.

A new home for billions of humans and trillions of animals, with oceans, lush forests and a beautiful blue sky.

A properly terraformed Venus may be the most pleasant place to live outside of Earth.

While we can't exactly terraform Venus today, a slightly more ambitious future version of us could take this project on.

It will take a few generations to complete and be a huge challenge, like building the Great Pyramids was for our ancestors.

But then, it's not like humans have never started projects that took more than a lifetime to complete.

Okay, let's do it.

Before anything else, we need to cool Venus down and remove the gas that makes up the extremely heavy atmosphere.

As mentioned, there's a lot of it.

Around 465 million billion tons.

How do we do that?

There are a few options.

We could create giant solar collectors powering a huge array of laser beams

that heat up the atmosphere so much that it's blasted into space.

Although we would need thousands of times the entire power generating capacity of humanity

and it would still take thousands of years to remove the atmosphere.

Another way is to sequester the atmosphere, binding the CO2 in different compounds through chemical reactions.

We could mine elements like calcium or magnesium on mercury and shoot them at Venus via mass driver systems,

electric rails that make rockets unnecessary on smaller planets.

The metals would combine to bind the CO2 into different carbonates basically forever.

But the scale makes the whole thing impractical.

We would need several hundred billion tons of material to sequester the CO2 this way.

Seems like a waste of material and might take too long.

An equally ridiculous idea that could actually work is to put Venus in the shade,

literally, by constructing a huge mirror to blot out the Sun to just freeze the atmosphere.

The mirror doesn't need to be complex or massive, just a very thin foil with a little structural support.

Building such a large flat surface

so close to the Sun will turn it effectively into a solar sail and push it out of position.

So instead of one giant circular object, our mirror will consist of many different pieces.

Annular slats of angled mirrors can reflect sunlight from one set of mirrors to the next.

Mirrors would be angled, reflecting light from one to another until the light is redirected to the back, balancing the force on the front and holding them in position.

After a few years of getting the infrastructure in place, things start slowly and then escalate.

For the first few decades, the atmosphere slowly cools down but stays dense and deadly.

Until after some 60 years, it reaches the critical temperature of 31 degrees Celsius.

Suddenly, the Great Flood begins on Venus as CO2 turns to liquid at this pressure and begins to rain down.

A constant global rainstorm of unbelievable proportions lasting 30 years.

The pressure and temperature suddenly begin to drop in unison.

For almost a century, puddles turn into lakes and oceans.

The surface temperature is now minus 56 degrees Celsius and the pressure has dropped to only seven times the pressure on Earth.

Finally, at a really unpleasant minus 81 degrees Celsius, the CO2 oceans begin to freeze and the rain turns into snow.

This leaves us with a frozen Venus covered in oceans as hard as rock and gigantic CO2 glaciers.

remains of the atmosphere is mostly nitrogen at about three times Earth's surface pressure.

If you don't mind freezing and suffocating, you can now take a stroll over Venus's surface.

But the frozen CO2 remains a bit of a problem.

At some point we want to warm up the planet, but if we do, the CO2 ice will melt and fill up the atmosphere again.

So we need some way to keep it from doing that.

One is to simply cover it all with cheap plastic insulation

and cover it up with ground up Venus rock or water oceans.

Although some planetary scientists will be very stressed out about us building a new planet containing a potential time bomb like that.

A few unfortunately timed volcanoes could melt a lot of CO2 at once and ruin everything.

Another obvious solution is to shoot it all out into space

and collect it into a small moon for storage and future use.

We can make this more efficient by using mass drivers instead of rockets, but moving all that mass will still be a pretty intense challenge that will take some time to solve.

Whatever we end up doing with the atmosphere, to move forward we need water, which we could get from ice moons.

Europa, a moon of Jupiter, has twice as much water as Earth's oceans.

Now, catching a moon and transporting it through the solar system is not exactly easy.

So instead, it might be easier to cut chunks of ice off Europa

with an army of construction drones and shoot them at Venus using more of those mass drivers.

Space tethers could save us a lot of effort and energy here.

We made a whole video explaining how they work, but in a nutshell, they are slings that can take a payload on both ends.

On Europa, they do most of the work needed to catapult our ice to Venus.

The ice hits the Venus tethers, which gently drop it into the atmosphere, where it falls down as snow.

In exchange, the Venus tethers get to catch CO2 ice shot up from below and accelerate it into orbit.

We can remove excess nitrogen using this same method to further lower our atmospheric pressure.

After a few decades or centuries, Venus would be covered by a nice, shallow, frozen ocean a few hundred meters deep.

It would look extremely different from today.

A few continents and countless islands have formed.

This is beginning to look a bit like our planet planet.

Now the last and most magnificent phase of terraforming begins, making the atmosphere breathable and adding life.

First, we need light though, and we need to heat the planet up again.

A Venus day is 2,802 hours long, more than 116 Earth days.

So, if we just remove our giant mirror, we would grill half of our planet.

Even without the massive atmosphere, temperatures would reach unbearable levels.

The simplest way to create a day-night cycle

and let some energy in again is with another set of mirrors to illuminate our continents and melt our water oceans,

which would let us completely control how much energy we get and where it goes.

The atmosphere is now mostly made up of nitrogen and basically devoid of oxygen.

So the first inhabitants will likely be trillions and trillions of cyanobacteria, which can get photosynthesizing and release oxygen.

We know that they can quickly turn around the atmosphere of a planet

because billions of years ago they were probably responsible for turning

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the toxic atmosphere of our young earth into an atmosphere with enough oxygen for more complex animal life.

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But not only that, cyanobacteria can fix nitrogen from the atmosphere

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and turn it into nutrients that can be used by living beings.

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This way, they will essentially fertilize our dead ocean water and prepare it for more complex organisms. On land,

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our colonists need to grind down some of the former Venusian surface to make soil for nitrogen-fixing plants to grow on.

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Eventually billions of trees would spread, creating large forests covering massive parts of the continents.

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Venus would turn green.

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To speed things up, CO2 would be strategically released to supply the plants and cyanobacteria.

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Areas already covered with plants could get extra daylight from our orbital mirrors

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so the plants would be active for most of each day.

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Maybe we won't have to do this with the same plants and animals we know today.

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As genetic engineering matures and our understanding of genetics and the machinery of life expands, we might just engineer life as we need it.

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All in all, it would take several thousand years to make the atmosphere breathable by humans.

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In the meantime, you could stroll around with nothing more than regular clothes and an oxygen mask.

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Settlers would enjoy a vast new planet, filled with resources and bathed in sunlight.

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They might think of new ways to use the vast amounts of carbon dioxide ice and nitrogen orbiting in space above,

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industrial processes, rocket fuel, or even boosting the terraforming of another planet like tiny Mars.

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Venus is fully terraformed.

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Animals roam through vast ecosystems.

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are being constructed.

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Billions of settlers and their descendants make this world their home.

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They will see images of the past.

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How Venus was once the most hostile planet around.

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How it took hundreds of years to freeze hell

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and to ship in the oceans and another few thousand years to make it possible to breathe freely.

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They will barely be able to believe it.

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Okay, maybe it's not that It's easy to terraform Venus

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and a lot of things must go right for this future to become reality.

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But it is possible and with technology

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that is within the reach of a motivated and slightly more advanced humanity that wants to venture into space.

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The only thing that's stopping it is our imagination.

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And that at least is a problem that's easy to overcome.

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Welcome to the Kurzgesagt Lab.

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Let's conduct a few stellar experiments.

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We'll first add some more mass to this protostar.

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More.

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A bit more.

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Wow, we've just created a blue giant.

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A star with 10 times the mass of our Sun.

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Let's now add a couple of million years and see what happens.

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A supernova.

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Breathtaking.

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And look, it leaves behind a black hole.

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Fascinating stuff.

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Now we record our findings.

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Be careful to preserve the sparkle.

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It's now time for Duck's final inspection.

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This one is always a nail biter, he has incredibly high standards.

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Luckily for us, our work is scientifically accurate, offers an overview of important astrophysical processes and is a real stunner.

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ทำไมการฝึกพูดด้วยวิดีโอนี้ถึงสำคัญ?

การฟังและพูดตามในวิดีโอนี้ไม่เพียงแต่ช่วยให้คุณได้เรียนรู้ศัพท์ใหม่ ๆ แต่ยังให้คุณได้ฝึกการพูดตามน้ำเสียงและจังหวะการพูดของผู้บรรยาย การเรียนรู้จากวิดีโอนี้จะช่วยให้คุณเข้าใจแนวคิดที่ซับซ้อนและสามารถนำไปใช้ในบทสนทนาประจำวันได้ นอกจากนี้ การใช้ shadowspeak ในการฝึกฝนยังช่วยแสดงให้เห็นถึงความคล่องแคล่วในการพูดและช่วยให้คุณกล้าพูดภาษาอังกฤษมากขึ้น

ไวยากรณ์ & ประโยคในบริบท

ในการวิเคราะห์วิดีโอนี้ เราจะพบโครงสร้างประโยคที่น่าสนใจซึ่งสามารถนำมาปรับใช้ในการพูดภาษาอังกฤษได้:

"What if we think bigger?" - วลีนี้ชี้ให้เห็นถึงการตั้งคำถามที่เปิดโอกาสให้เราผลิตแนวคิดใหม่ ๆ
"It might be easier than you think." - การใช้โครงสร้างนี้แสดงถึงการให้กำลังใจและความเป็นไปได้ที่ซ่อนอยู่
"How do we do that?" - การใช้โครงสร้างคำถามช่วยให้บทสนทนาดูมีชีวิตชีวาและกระตุ้นให้ผู้อื่นมีส่วนร่วม

การเรียนรู้โครงสร้างเหล่านี้จากวิดีโอจะช่วยให้คุณ ปรับปรุงการออกเสียงภาษาอังกฤษ และการสร้างประโยคในบทสนทนาของคุณ

กับดักการออกเสียงที่พบบ่อย

ในวิดีโอนี้มีคำที่อาจทำให้เกิดความสับสนในเรื่องการออกเสียงได้ เช่น:

Terraform - การออกเสียงคำนี้อาจทำให้สับสน และผู้เรียนควรฝึกพูดตามให้ชัดเจน
Atmosphere - ต้องระวังการออกเสียงที่ถูกต้องเพื่อไม่ให้เกิดความเข้าใจผิด
Gravity - คำนี้มีเสียงหนักที่ควรพูดให้ชัดเจนเพื่อการสื่อสารที่มีประสิทธิภาพ

โดยการฝึก เรียนภาษาอังกฤษจากยูทูป และใช้ shadow speak ในการฝึกจะช่วยให้คุณมีความมั่นใจมากขึ้นในการออกเสียงคำที่ยาก

ไวยากรณ์ในวิดีโอนี้

โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:

โครงสร้าง	ในวิดีโอ
ประโยคเงื่อนไข if + อนุประโยค, will/would + กริยา — เงื่อนไขและผลลัพธ์	if we do, the CO2 ice will melt
Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ	would be angled · would be covered · is now mostly made
Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน	have never started · has dropped · have formed

เทคนิค Shadowing คืออะไร?

Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ

เทคนิค shadowing: อ่านคู่มือฉบับเต็มทีละขั้นตอน →

ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: How To Terraform Venus (Quickly)

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ทำไมการฝึกพูดด้วยวิดีโอนี้ถึงสำคัญ?

ไวยากรณ์ & ประโยคในบริบท

กับดักการออกเสียงที่พบบ่อย

ไวยากรณ์ในวิดีโอนี้

เทคนิค Shadowing คืออะไร?