शैडोइंग अभ्यास: What If I Fell Into A Black Hole? - वीडियो के साथ अंग्रेजी बोलना सीखें

अभ्यास मोड चुनें

हर मोड पूरी स्क्रीन का अभ्यास कक्ष खोलता है।

290 वाक्य

यदि वाक्य बहुत छोटे या लंबे हों, तो समायोजित करने के लिए Edit पर क्लिक करें।

Imagine that you're flying through space, when suddenly you start to get dragged toward a dark abyss.

Reality as you know it starts to change.

Time begins to warp and… "So you start to feel this strange sensation of being stretched." You're falling into a black hole,

one of the most astonishing places in our universe.

Some are so big that they can fit over 60 of our solar systems across them, with masses up to 100 billion times our sun.

And once you fall past a certain point, nothing can escape.

Or can it?

I wanted to know the latest cutting -edge research about black holes, so I called up my favorite physicist, Dr. Brian Cox.

To answer the question, If you fell into a black hole, what would actually happen to you?

What would it feel like?

And what does our newest science tell us is really happening?

Inside a black hole.

Black holes.

One of the strangest things in existence.

A mathematical enigma.

You've come face to face with the structure of space and time.

Don't let me leave, Murph!

Spaghettification.

Black holes ain't so black.

Nature doesn't work that way.

It's the most wonderful thing.

It's incredible.

Imagine that you and I are on a mission to fall into a black hole.

And we have some imaginary spaceship that can take us as far and as fast as we want.

So we get into our spaceship.

What now?

What is a black hole and how do we find them?

So essentially what's the idea behind a black hole?

Let's say you take the sun, a star, the mass of the sun.

And you just collapse it.

And you keep on collapsing it.

And you squash it down.

becomes three kilometers.

Three.

If you artificially squashed all of that mass into that tiny little space, the gravity, right at its surface, would be immense.

So immense that if you wanted to escape… The speed you'd have to travel to escape its gravitational pull, it's called the escape velocity, would exceed the speed of light.

So even light rays emitted from the surface, if you could squash it down that far, would just stay there.

That is a black hole. can escape.

At first, black holes were just a mathematical quirk, a weird solution to equations that seemed to otherwise fit our universe.

They were only theoretical. But then...

we started to find them.

Over decades, scientists measured the movement of stars and galaxies and gases that were warped by seemingly empty patches of space.

Left behind, we now know, by the collapsing death of stars much larger than our sun.

We discovered that black holes are real.

We can now tell they're all over our universe.

Some estimates say they're up to 40 quintillion of them.

And almost every galaxy has a supermassive black hole at its center including our own Milky Way.

Let's go.

Let's imagine that we choose the black hole at the center of our own galaxy.

Yeah.

Sagittarius A star, I think it's called.

I know that we took this picture of it.

What are we looking at here?

So here, the light, you might say, what is the light in this picture?

So it's not from the black hole, because we just said black holes trap light.

It's from what's called the accretion disk.

Say, what?

You're to imagine material spiraling around in orbit, around this very dense object, and very violently orbiting.

And so it heats up and emits light.

Wait, so then why in this photo do we not see the accretion disk across the middle?

Well, it turns out that we happen to be seeing this particular black hole from above.

But if you were to see it from edge on, something very weird starts to happen.

behind the black hole.

Because the black hole's gravity is so immense, it's causing light to be bent and distorted around it.

- So imagine this disc of material around this thing.

Then light rays, let's say from your perspective, from behind the black hole, go around into your eyes.

Sometimes they orbit and then go around into your eyes.

And they go into your eyes from every point on the disc, from underneath and at the top and behind.

So you see that, that's what you see as an image.

And in our little spaceship, we're getting closer.

As we approach, I start to wonder, how big is this thing?

Based on the way it pulls at the stars around it, scientists estimate that the black hole at the center of our galaxy has a mass of 4 .3 million times our sun.

But if you plopped it down inside our solar system, this black hole would only extend to about one -fifth of Mercury's average orbit.

small for its immense mass.

And compared to other black holes, ours is just Medium.

One of the smallest black holes ever found is J1650.

Its diameter is only about as long as Manhattan, but it has a mass of 3 .8 times our sun.

One step up would be the black hole in Messier 15.

It's about twice the diameter of Earth, with a mass of 4 ,000 suns.

Okay, now we're at the lower limit of what's considered a supermassive black hole.

This one is just under half the diameter of our sun, but about 100 ,000 times its mass.

And here's Sagittarius A *.

Now to the truly insane.

The black hole in the galaxy M87 weighs 5 .4 billion suns.

You could fit our solar system around four times across it.

It was the first one we ever got a picture of in 2019.

And this is one of the largest black holes ever discovered: Ton 618.

It weighs 66 billion times more than our sun.

And it could fit nearly 40 of our solar systems across it.

But it might not be the biggest. of 100 billion suns.

But since this black hole is closer, we're seeing what it looks like more recently than TUN 618, which might have grown since.

And these are just the biggest ones we know of.

There could be an even more massive one, just waiting to be found.

And now we're starting to get pulled into one.

So we're falling towards this thing now, and we turn our rocket motors off.

We're just in free fall.

We're just floating.

100

So We're just there.

101

So we could be.

102

approaching this in this room now and we would have no clue that that's what's happening.

103

What about when we're in the accretion desk?

104

Wouldn't we be banged around by a lot of stuff?

105

We might get in a bit of a mess as we fell through the accretion desk.

106

You're absolutely right.

107

It's a bit nasty around these things.

108

But let's say that our room, this spacecraft, is magically insulated from radiation and heat and all those things.

109

Then nothing.

110

One of the most shocking things, from the point of view of someone outside, the description is very different.

111

Okay, now imagine you, yes, you, watching this.

112

You go outside and you look with an all -powerful telescope at me and Brian, light years away.

113

So what would they see happening to us?

114

as we fall towards this thing, as we approach the black hole, if they could see our watches, they would see our time tick more slowly,

115

more slowly, more slowly, and they would see our time stop on the horizon.

116

Stop.

117

This is incredibly important.

118

As we get closer to the black hole, there are now actually two journeys.

119

There's our journey as we see it, and then there's our journey as you would see it from far away.

120

And they are very different.

121

Why?

122

Because black holes are There's something weird there, but there isn't, according to Einstein.

123

Albert Einstein was the one who realized that space and time are actually one thing: space -time.

124

And space -time is stretchy.

125

Space -time responds, warps or curves, to matter and energy in the universe.

126

The theory that Einstein published will say, "Give me a ball of matter," and the equations will tell you how the fabric of the universe is distorted.

127

A black hole is the most extreme example of this distortion that we know about.

128

The math tells us that reality very close to it, and very far from it, are not the same.

129

So it looks to us like the universe is speeding up, and it looks to you like we're moving in slow motion.

130

Now we're crossing the line where no light can ever escape to reach you again.

131

For us, we don't feel that.

132

But for you, you never actually see us cross it at all.

133

They would never see us fall in.

134

From the point of view of someone outside, nothing goes into the black hole.

135

Ever.

136

us imprinted there forever or does the light from us slowly fade until...

137

This light is climbing away through this gravitational field

138

so it's getting stretched so we get redder and redder and redder, infinitely redshifted.

139

And from our perspective there's no turning back.

140

You can write the equations as a space being like a river

141

that flows into this thing almost like a sinkhole

142

or something in space

143

and the river of space flows at the speed of light inwards on the horizon and then faster than light inside.

144

So if you imagine that you're a photon, a particle of light, you're like a little fish swimming against the tide.

145

But if the tide's going at the speed of as fast as you can swim, the speed of light, you can't get out.

146

We're now past the event horizon.

147

But before I show you what's inside this black hole, let me show you something here on Earth.

148

I am finally building Huge If True's first website and I'm really excited about it.

149

The reason why I think we need one is that we obviously have our home on YouTube, but we need some place to tell you about the show, about different things that we're doing, and maybe sell some merch very soon.

150

Wait, I think I have a sneak peek.

151

Yeah, you'll see me wearing this a lot.

152

And it's got this cool If True one thing.

153

And I can build our site with Hostinger, our sponsor.

154

Clicked here, I got a business plan, which has a bunch of cool features, including an AI logo maker, if you're looking to just brainstorm ideas.

155

And of course, if you're looking to sell something, it has e -commerce features.

156

And I just start building.

157

I'm using their AI website builder, which is fun.

158

It can even write copy that's very good for SEO, which makes things easier.

159

If you want to build your own site, I've really been enjoying using Hostinger, and I think you might too.

160

And right now they're offering you, the huge crew, 10 % off if you use the coupon code CLIO.

161

Make sure you use it if you sign up, because that helps this channel.

162

independent journalism.

163

Now, let me take you inside a black hole.

164

We're past the event horizon, but we're still falling and falling.

165

And finally, ah, we begin to feel something.

166

Gravity is increasing faster and faster.

167

And this is where we get to maybe my favorite word that I have learned in the process of this.

168

My understanding of this is when the gravity at your feet is so different This is spaghettification.

169

Could you explain what is happening here?

170

Yeah.

171

Another way of thinking about it is just

172

that the distortion in space -time is not constant over the length of your body.

173

It's not only stretching, it's also a squashing.

174

You start to feel this strange sensation of being stretched and squashed.

175

And as you go closer and closer to the singularity, those effects become much more extreme.

176

Until they're so extreme that first of all, you cease to stay together.

177

We're one long string of atoms?

178

What are we?

179

Yeah, and then the atoms get separated and then the protons, the quarks inside the protons will get separated and ultimately everything is gone.

180

Everything's been ripped apart.

181

And all the ripped apart pieces that used to be us are still racing inward toward the singularity.

182

I think it's really tempting to picture it as some infinitely dense point to which this star collapsed.

183

But since a black hole is a distortion of space -time, the singularity is not just a place, it's also a moment in time.

184

And it's in fact the end of time in Einstein's theory.

185

It becomes something that's in the future for anyone or anything that crosses the horizon.

186

So it's like, if you say, "Well, I want to escape this thing," it's like saying, "I want to escape tomorrow." If I said to you, "Let's run away from tomorrow," you'd go, "I can't run away from tomorrow,

187

it's in the future." That's what this thing behaves like, singularity.

188

If imagining the center of a black hole as "the end of time" feels like your brain is getting "spaghettified,"

189

It's okay, bye!

190

It's about to get weirder.

191

So we have passed through the event horizon, we have been spaghettified, we have hit the end of time.

192

The question is, can we ever get back out?

193

So the answer is, according to Einstein's theory, no. Einstein would say it's all over, you've got ripped to bits,

194

you've gone to this infinitely distorted space and time, and it's just done.

195

What would Stephen Hawking say?

196

Stephen Hawking discovered that black holes, which according to Einstein's math, nothing should ever escape and they should only live and grow forever as they just suck in mass around them,

197

something actually does get away.

198

What's called Hawking radiation is emitted from the black hole.

199

So what is that?

200

Particles being emitted, it's a temperature, it's glowing.

201

And so that means it's losing energy, and so that means it has a lifetime.

202

And that means one day it will be gone and space will

203

will be the Hawking radiation that's been emitted over these eons of time.

204

Okay, I think something is missing from my understanding of the universe.

205

I agree with you, something is missing in my understanding as well, and everybody else's.

206

Here's what I think is missing from mine right now.

207

So all of this matter has, including us, passed through the event horizon, ended up at the singularity.

208

It is something in there.

209

Yeah.

210

At the end of time.

211

And also, I know that every law that that we have about the universe says that information is conserved.

212

If a black hole will one day end up as nothing, what happened to you and me?

213

What happened to all of that stuff?

214

I mean, this is the central question.

215

So, um, Stephen's initial calculation was the Hawking radiation is information free, purely thermal.

216

So that would suggest, as you said, that the information, any record of anything that fell in will have been erased.

217

clear on this.

218

Information does not get destroyed in the universe.

219

It gets scrambles but doesn't get destroyed.

220

So that's what bothered everybody.

221

What happened?

222

What's the end of the story?

223

Did we answer the question?

224

So at the end of the story, We're not at the end of the story yet, but in 2019, a series of papers were published.

225

Those papers suggest that Stephen missed a bit in his calculation.

226

Very subtle.

227

But it turns out that the radiation is not information free.

228

At the end of the process, then all the information about everything that fell in is imprinted in the radiation, as you would normally expect.

229

On the one hand, that makes sense, because then the information is not destroyed.

230

weirder.

231

Because how then did the information, which went to the singularity and the end of time, and get outside again? as radiation.

232

But you say, well, what's the picture then?

233

What happened?

234

Because I understand if I take this and throw it into the black hole, it's gone across the horizon.

235

It's gone to the singularity.

236

It's definitely true that nothing comes out of the black hole.

237

So how is this information about this thing?

238

getting imprinted in the radiation.

239

And I should emphasize as a health warning here, this is ongoing research and there is no agreed upon picture.

240

This is the cutting edge of research into black holes.

241

One description of our perspective is, yeah, we go to the singularity, we get all scrambled up.

242

And then it looks like the interior of the black hole is in some sense the same place as the exterior.

243

You could almost picture wormholes opening up to the exterior and very naively,

244

you imagine our bits of information going through the wormholes and coming out again.

245

We end up outside.

246

The information ends up outside in the Hawking radiation.

247

Even as I say this, there are papers being written saying different things.

248

It's really cutting edge stuff.

249

- Different things like, well, maybe you never go in.

250

Maybe there actually is no in of a black hole.

251

Or maybe everything is just information with no real place at all.

252

And now my brain is breaking.

253

look like that there is a description of the universe.

254

That looks like a giant quantum computer which does not imply that someone built it right?

255

It doesn't even we're in a simulation

256

but it does suggest that there's a a good description of reality

257

that you can write down in the form of some kind of network of entangled qubits.

258

Something like that.

259

And I think it's fair to say that the jury is still out on these issues.

260

But the thing to emphasize is it's really, there's something really fundamental going on here.

261

And it probably, it almost certainly is associated with the nature of space and time.

262

themselves or space -time.

263

Black holes are an incredible gift because they stretch the limits of our understanding of our universe.

264

We struggle with it, but it's hard for us.

265

You start to come face to face with the.. with what?

266

With the structure of space and time.

267

In their strangeness, their extremeness, black holes reveal the hidden structure of reality that governs everything, including our everyday lives.

268

You're studying completely collapsed stars or the things at the

269

And you're gaining insight into quantum computers and networks of qubits and quantum information.

270

It's the most wonderful thing.

271

It's incredible.

272

One of the things that I really admire about you

273

and your work is that you have this sense of wonder at the universe.

274

You give that sense of wonder back to people.

275

You say, hey, don't you remember what it was like when you were a little kid looking up at the sky?

276

as you learn more about the universe, that sense of wonder can increase, not decrease.

277

Yeah.

278

And I think that's really special.

279

And I think that people need that.

280

And first, I just wanted to say thank you.

281

Thank you.

282

And second, My last question for you is, how do you feel when you go outside and look up at the night sky,

283

given what you know?

284

The sense of all.

285

and the sense of mystery and beauty increases the more you know about what you're looking at.

286

It doesn't decrease.

287

The number of mysteries increases the more you look at it.

288

So anybody watching this, if it's a clear night, you can go outside.

289

You can look in the direction of the centre of the galaxy and wonder about it.

290

But the more you understand about nature, the more mysterious and magical it becomes.

ऐप डाउनलोड करें

धाराप्रवाह बोलने के लिए ज़रूरी सब कुछ

AI उच्चारण स्कोरहर वाक्य का स्कोर

IPA अभ्यासहर ध्वनि में महारत

शब्दावलीअपना शब्द भंडार बनाएँ

शब्द गेमखेलते हुए सीखें

QR स्कैन करें

Download on theApp Store Get it onGoogle Play

उसी चैनल से

FOR YOU

अनुशंसित वीडियो

74 वाक्य

Black Holes Explained – From Birth to Death

IELTS PrepTOEFL PrepUniversity Students

872 वाक्य

Advance English Learning | The Mechanics of Fast Speech: Assimilation, Elision, and Intrusion

IELTS PrepTOEFL PrepUniversity Students

224 वाक्य

Why Does Time Stop at the SPEED OF LIGHT? Feynman's Mind-Blowing Truth

IELTS PrepTOEFL PrepUniversity Students

113 वाक्य

What Happens if the Moon Crashes into Earth?

IELTS PrepTOEFL PrepUniversity Students

143 वाक्य

You Live Inside a Cosmic Hole... And there's a problem

IELTS PrepTOEFL PrepUniversity Students

120 वाक्य

Philomena Cunk being Philomena Cunk

IELTS PrepTOEFL PrepUniversity Students

28 वाक्य

How to Blow Up the Earth - Nuclear Engineer Reacts to Zack D. Films

IELTS PrepTOEFL PrepUniversity Students

22 वाक्य

How The Universe Could Destroy Life On Earth

IELTS PrepTOEFL PrepUniversity Students

274 वाक्य

O, Death!

IELTS PrepTOEFL PrepUniversity Students

242 वाक्य

Brian Cox: Why even Einstein doubted the existence of black holes

IELTS PrepTOEFL PrepUniversity Students

पहला प्रभाव

जब आप इस वीडियो को देखते हैं, तो आपको एक अद्भुत यात्रा का अनुभव होता है जिसमें आप अंतरिक्ष और काले छिद्रों के रहस्यों में गहराई से उतरते हैं। संवाद में जिस तरह से जटिल वैज्ञानिक सिद्धांतों को सरलता से समझाया गया है, वह इसे बोलने के लिए एक बेहतरीन सामग्री बनाता है। उदाहरण के लिए, जब वक्ता कहता है, "आप एक ऐसी जगह पर आते हैं जहां समय और स्थान के संरचना का सामना करते हैं," तो यह न केवल जानकारीपूर्ण है बल्कि इसे बोलने में भी मजा आता है। यह संवाद सुनने वालों को सोचने पर मजबूर करता है और उनकी जिज्ञासा को बढ़ाता है।

इसे तोड़ें

आइए अब हम कुछ वाक्य लेते हैं और समझते हैं कि क्यों ये प्राकृतिक लगते हैं।

“आपके सामने एक ढाई अंधेरे के खाई में खींचे जाने की कल्पना करें।” यह वाक्य अद्भुत चित्रण करता है और सुनने वाले को तुरंत आकर्षित करता है।
“समय विकृत होना शुरू होता है और आप खिंचाव का एक अजीब अनुभव महसूस करने लगते हैं।” यहाँ पर 'खिंचाव' शब्द का प्रयोग एक भावनात्मक जुड़ाव बनाता है, जिससे श्रोताओं को उस स्थिति का अनुभव होता है।
“जब आप इस चीज़ के करीब पहुँचते हैं, तो आप सोचने लगते हैं, यह कितनी बड़ी है?” इस वाक्य में प्रश्न पूछने की शैली संवाद को और भी जीवंत बनाती है।

ये वाक्य न केवल जानकारी देते हैं, बल्कि उन्हें बोलने में भी आनंद आता है, जिससे आप अंग्रेजी बोलने के अभ्यास में मदद कर सकते हैं।

अभ्यास की दिनचर्या

अब हम एक सरल अभ्यास रूटीन पर नज़र डालते हैं। इसे 'repeat-and-record' तकनीक के माध्यम से किया जा सकता है।

वीडियो के पहले वाक्य को सुनें: "आपके सामने एक ढाई अंधेरे के खाई में खींचे जाने की कल्पना करें।"
इस वाक्य को ध्यान से बोलें और रिकॉर्ड करें।
फिर सुनें और अपने उच्चारण और इन्फ्लेशन को ध्यान से सुनें।
इस प्रक्रिया को दोहराएँ जब तक कि आप इसे सहजता से न बोल सकें।

इस अभ्यास के माध्यम से, आप न केवल अपनी बोलने की क्षमता को बढ़ाएंगे, बल्कि संवाद की गहराई और उसकी खूबसूरती को भी समझेंगे। याद रखें, 'shadowspeak' आपके लिए एक अद्भुत उपकरण हो सकता है जिसका उपयोग आप अपने अंग्रेजी बोलने के कौशल को निखारने के लिए कर सकते हैं।

इस वीडियो का व्याकरण

वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:

संरचना	वीडियो में
शर्त वाले वाक्य if + उपवाक्य, will/would + क्रिया — शर्त और उसका नतीजा	If a black hole will one
Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता है	being stretched · were warped · be bent
Present perfect have/has + past participle — बीता हुआ काम जिसका असर अभी भी है	You've come · have learned · Everything's been ripped
Relative clauses who / which + उपवाक्य — व्यक्ति या वस्तु के बारे में अतिरिक्त जानकारी	one who realized · plan, which has · builder, which is

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।

शैडोइंग तकनीक: पूरी चरण-दर-चरण गाइड पढ़ें →

शैडोइंग अभ्यास: What If I Fell Into A Black Hole? - वीडियो के साथ अंग्रेजी बोलना सीखें

अभ्यास मोड चुनें

ऐप डाउनलोड करें

Antarctica Is Bigger Than You Think

Formula 1, Explained for Rookies

How Big Is The Biggest Black Hole?

What If The Earth Was Flat?

The Shoe That Broke Running

I Wrote a NEW Sci-Fi with Project Hail Mary Author Andy Weir

Formula 1 Cars, Explained with Max Verstappen

Would You Use An Artificial Womb? (I Would)

Humanity’s Real Plan to Stop This Asteroid (Feat. Mark Rober)

Why Gravity Is A Lie, explained in Zero G

The New Hunt for the Colossal Squid

The Ocean Is Deeper Than You Think. We Need Better Maps.

Something’s Happening to the Ozone Hole

The Future Mark Zuckerberg Is Trying To Build

The Big Lie About Nuclear Waste

How Did Dinosaurs Actually Go Extinct?

The Sun Is Weirder Than You Think

How Will The Universe Die?

Black Holes Explained – From Birth to Death

Advance English Learning | The Mechanics of Fast Speech: Assimilation, Elision, and Intrusion

Why Does Time Stop at the SPEED OF LIGHT? Feynman's Mind-Blowing Truth

What Happens if the Moon Crashes into Earth?

You Live Inside a Cosmic Hole... And there's a problem

Philomena Cunk being Philomena Cunk

How to Blow Up the Earth - Nuclear Engineer Reacts to Zack D. Films

How The Universe Could Destroy Life On Earth

O, Death!

Brian Cox: Why even Einstein doubted the existence of black holes

पहला प्रभाव

इसे तोड़ें

अभ्यास की दिनचर्या

इस वीडियो का व्याकरण

शैडोइंग तकनीक क्या है?