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These are the user uploaded subtitles that are being translated: 0 00:00:00,010 --> 00:00:07,777 SUB BY : DENI AUROR@ https://aurorarental.blogspot.com/ 1 00:00:01,990 --> 00:00:05,425 What does our universe consist of? 2 00:00:05,625 --> 00:00:10,307 It is the biggest unanswered question in science. 3 00:00:10,507 --> 00:00:13,356 Despite the name, it is not space In an empty space in any case. 4 00:00:13,556 --> 00:00:16,184 Space itself consists of something. 5 00:00:16,961 --> 00:00:22,181 Hidden structure and strength are present in the space itself. 6 00:00:22,381 --> 00:00:28,750 Space is a very dynamic dynamic medium. 7 00:00:28,950 --> 00:00:33,047 A force that connects everything in our universe. 8 00:00:33,247 --> 00:00:36,823 He is a vital player in the game of life. 9 00:00:37,733 --> 00:00:45,201 It strengthens our reality, connects Time and space from the start. 10 00:00:46,075 --> 00:00:49,099 We call him "spacetime.". 11 00:00:49,299 --> 00:00:54,367 It's all, space-time is what the universe is. 12 00:00:55,181 --> 00:00:59,069 Spacetime is how our universe works. 13 00:00:59,618 --> 00:01:06,742 But what exactly is it? How do you control our past, our present and our future? 14 00:01:23,721 --> 00:01:26,728 We cannot see it. 15 00:01:26,928 --> 00:01:30,068 We cannot touch it. 16 00:01:30,857 --> 00:01:35,092 But without space-time ... we wouldn't be there. 17 00:01:35,292 --> 00:01:40,552 Space-time is our fabric It shapes and governs our lives. 18 00:01:40,752 --> 00:01:46,609 If we wanted to understand the story of the universe, then who is it? The important thing is to understand the behavior of space-time. 19 00:01:48,199 --> 00:01:56,037 Spacetime active since everything began It is the key to the development of everything. 20 00:01:56,237 --> 00:02:00,766 We have to understand spacetime to understand the history of the universe. 21 00:02:00,966 --> 00:02:06,422 To understand how the universe began, and how Evolution, and what will happen in the future. 22 00:02:06,422 --> 00:02:10,913 The story of spacetime is the story of our universe. 23 00:02:10,913 --> 00:02:18,704 To know how the story revolves, and how It will end . We have to go back to the beginning. 24 00:02:20,693 --> 00:02:24,033 Until there is nothing. 25 00:02:24,233 --> 00:02:30,561 There are no stars or space A time before time. 26 00:02:30,761 --> 00:02:35,854 ...Suddenly. 27 00:02:37,797 --> 00:02:41,584 Our entire universe was born in the Big Bang. 28 00:02:41,784 --> 00:02:48,055 It started in a moment, as our universe arose out of nowhere. 29 00:02:48,255 --> 00:02:55,266 The definition of the moment of the Big Bang is The origins of time and space at that moment. 30 00:02:55,466 --> 00:03:01,322 It is as far as we know it is a genesis Time and space are the same. 31 00:03:01,522 --> 00:03:10,715 The nascent universe, a finite point of Energy and spacetime, embodied in nothing. 32 00:03:10,915 --> 00:03:16,347 Then the universe suddenly expanded. 33 00:03:16,547 --> 00:03:26,760 The idea of ??expansion is that it is an infinitesimal spot, and in little time Very much less than a second, growing to fold and fold. 34 00:03:26,960 --> 00:03:31,848 Imagine me suddenly becoming the size of a galaxy. 35 00:03:32,048 --> 00:03:40,847 In a split second, the universe grew from Less than corn to the size of a basket ball. 36 00:03:41,047 --> 00:03:49,019 In cosmic terms, this is like growth A grain of sand to the size of the visible universe. 37 00:03:49,219 --> 00:03:54,145 The moment the universe expands faster than light. 38 00:03:54,345 --> 00:03:56,889 It looks like a breach of everything we learned in physics. 39 00:03:57,089 --> 00:04:01,455 The astronomer may argue, saying Nothing moves faster than light. 40 00:04:01,655 --> 00:04:04,430 This is somewhat true. 41 00:04:04,630 --> 00:04:09,190 But the rule is that he is not traveling Something across the universe is faster than light. 42 00:04:09,390 --> 00:04:16,294 In expansion, space itself is what It expands, there is no breach or contradiction. 43 00:04:21,315 --> 00:04:26,472 By rapidly expanding, the universe has undergone a phenomenal growth rate. 44 00:04:26,672 --> 00:04:35,623 At the moment of the Big Bang, spacetime was an entity Moving in all directions, the space itself was expanding. 45 00:04:35,624 --> 00:04:39,441 But the universe did not expand evenly. 46 00:04:39,641 --> 00:04:44,293 There was more slick from the universe Intensity just below it. 47 00:04:44,293 --> 00:04:52,029 , And we're talking about a very small percentage Part of a hundred thousand, but that was enough. 48 00:04:52,229 --> 00:04:57,471 The differences occurred in spacetime Expansion is made with areas of higher density. 49 00:04:57,671 --> 00:05:02,874 The expansion made those High-density areas are larger. 50 00:05:03,074 --> 00:05:08,626 This allowed the formation of our universe. 51 00:05:08,826 --> 00:05:16,862 When the parts of our universe have not expanded Equally, things started to gather suddenly. 52 00:05:17,062 --> 00:05:22,285 When the universe cooled, energy turned into matter. 53 00:05:23,767 --> 00:05:29,844 And this substance joined together in the densest areas. 54 00:05:30,044 --> 00:05:34,907 And they had those areas in a way A critical mass is greater than other regions. 55 00:05:35,107 --> 00:05:41,335 The mass bends spacetime so what It consists of the material bends spacetime. 56 00:05:41,535 --> 00:05:43,971 The more the material in Somewhere the bend over was over. 57 00:05:44,171 --> 00:05:46,180 I'm folding space-time now. 58 00:05:46,380 --> 00:05:50,941 When I bow, I fold More because there is more muscle density. 59 00:05:51,141 --> 00:05:54,670 I don�t bend as hard as I can By destroying the Earth and the Solar System. 60 00:05:54,870 --> 00:05:57,317 But it's an effect, it's a fact. 61 00:05:57,517 --> 00:06:00,928 If you imagine wearing glasses that allow I can see spacetime directly. 62 00:06:00,928 --> 00:06:11,058 Suddenly, you see these hidden features The curved universe is like a hand in front of my face. 63 00:06:12,271 --> 00:06:18,332 We would have seen the curvature of the spacetime network It moves and interacts with the objects inside it. 64 00:06:18,532 --> 00:06:25,483 And we felt the curvature of space-time As a force we call gravity. 65 00:06:25,683 --> 00:06:28,318 Gravity differs from all other forces. 66 00:06:28,318 --> 00:06:31,857 It is related to the curvature of space-time. 67 00:06:31,857 --> 00:06:35,558 The thing that bends spacetime has gravity. 68 00:06:35,758 --> 00:06:40,291 That gravity folds spacetime itself. 69 00:06:42,240 --> 00:06:44,896 It's hard to represent. 70 00:06:45,096 --> 00:06:50,239 But the good resemblance is an acrobatic swing and a safety net. 71 00:06:51,162 --> 00:06:59,322 Imagine acrobatic intentionally falling on the net and that The grid is flat and looks like an equal distance grid. 72 00:06:59,522 --> 00:07:04,362 But when do they fall, they misrepresent that Grid, and it's a lot like space. 73 00:07:04,562 --> 00:07:08,345 When matter is in space, it deflects the frame. 74 00:07:08,545 --> 00:07:14,076 When does an acrobat settle down on the net? Then the spacetime is bent slightly. 75 00:07:14,276 --> 00:07:21,570 If acrobatic settles, the mass doubles in itself The larger the decrease the more the deviation is greater. 76 00:07:21,770 --> 00:07:24,496 And this is how space-time works. 77 00:07:24,696 --> 00:07:29,376 Excess mass means a greater curvature of space-time. 78 00:07:29,576 --> 00:07:31,973 It means more attraction. 79 00:07:32,173 --> 00:07:38,035 But understand the nature of gravity Spacetime is not an easy thing. 80 00:07:39,786 --> 00:07:44,640 It is an idea coined by anyone Greatest minds ever. 81 00:07:44,840 --> 00:07:53,124 Einstein coined the idea that space is an entity By itself it can be folded and folded. 82 00:07:53,324 --> 00:07:56,425 We are bound by space-time. 83 00:07:57,704 --> 00:08:01,757 "Einstein" assumes that space Time has mathematical engineering. 84 00:08:01,957 --> 00:08:05,014 They have both their lives and their driving power. 85 00:08:05,214 --> 00:08:09,513 That driving force is what we call gravity. 86 00:08:09,713 --> 00:08:15,290 The greater the density of the material region The gravity is deeper and the curve is deeper. 87 00:08:15,490 --> 00:08:20,217 This bond is the foundation of our material reality. 88 00:08:20,417 --> 00:08:28,827 The interaction between matter, energy, and spacetime What created the universe that we see around us today. 89 00:08:29,027 --> 00:08:32,007 But that does not mean that we fully understand it. 90 00:08:32,207 --> 00:08:36,013 We don't know much, and it's disappointing. 91 00:08:36,213 --> 00:08:39,325 With the laws of physics I can I talk about how space-time behaves. 92 00:08:39,555 --> 00:08:47,482 But it appears to be a stretching and shrinking entity And that gravity is the embodiment of spacetime. 93 00:08:47,682 --> 00:08:55,473 Growing up in the Big Bang, he merged Time, space and energy to make our newborn universe. 94 00:08:55,673 --> 00:08:59,734 Those basic materials were the basis. 95 00:08:59,934 --> 00:09:05,536 But how did we get to the structures extremely The complexity that we see today? 96 00:09:05,736 --> 00:09:11,437 How did spacetime build our great universe? 97 00:09:25,127 --> 00:09:32,103 Our entire universe arose in the explosion The Great 13.8 billion years ago. 98 00:09:32,303 --> 00:09:36,999 Everything arose out of nowhere. 99 00:09:37,626 --> 00:09:42,613 But our contemporary universe is a complex mixture of materials. 100 00:09:44,214 --> 00:09:53,087 We marvel at our approach to this strange composition For our universe and galaxies and ask yourselves where did all this come from? 101 00:09:53,287 --> 00:09:57,312 The matter in the universe organizes Itself on a vast cosmic web. 102 00:09:57,512 --> 00:10:01,474 Galaxies and galaxy clusters are arranged on plates and strings. 103 00:10:02,315 --> 00:10:08,385 ... that intricate web was organized by Cosmic Architect. 104 00:10:09,209 --> 00:10:11,384 Spacetime. 105 00:10:11,584 --> 00:10:18,616 He formed everything from planets For galaxies, and atoms for cities. 106 00:10:18,816 --> 00:10:19,922 The universe consists of spacetime. 107 00:10:19,922 --> 00:10:26,412 Whatever the matter, time and space are related They expand and create the universe that we see around us. 108 00:10:26,791 --> 00:10:32,161 It's all, space-time is what the universe is. 109 00:10:32,361 --> 00:10:35,244 It is a difficult idea to understand. 110 00:10:35,444 --> 00:10:37,490 The most difficult to imagine. 111 00:10:39,024 --> 00:10:43,440 Scientists are watching the universe in Various wavelengths of light. 112 00:10:43,640 --> 00:10:51,501 ... this is the sun with visible light X-rays ... and ultraviolet light. 113 00:10:51,701 --> 00:10:56,367 Imagine if we could see it with the spectrum of space-time. 114 00:10:56,567 --> 00:11:01,902 We'll see space-time deviation as objects pass through it. 115 00:11:02,102 --> 00:11:05,169 Spacetime can deviate and push objects around. 116 00:11:05,169 --> 00:11:08,768 It can stretch and push out objects. 117 00:11:08,968 --> 00:11:14,572 But the shape of spacetime determines how we see it. 118 00:11:14,772 --> 00:11:17,728 Imagine you are in a car as you climb up and down a hill. 119 00:11:17,928 --> 00:11:23,168 The shape of the Earth�s surface is what determines it How to travel across the surface of the Earth. 120 00:11:23,368 --> 00:11:30,815 In the same way, the geometry of spacetime is determined How light and matter travel through space-time. 121 00:11:33,353 --> 00:11:35,083 The rules are simple. 122 00:11:35,083 --> 00:11:40,911 Matter, and what object tells space-time how to bend. 123 00:11:40,911 --> 00:11:46,508 The curvature of space-time tells the material how to move. 124 00:11:48,007 --> 00:11:53,501 Because the shape of spacetime tells the material How to move, in what we call gravity. 125 00:11:53,701 --> 00:12:02,678 This means that gravity and the shape of spacetime tell Matter is how it coalesces and creates larger structures. 126 00:12:02,878 --> 00:12:09,186 But at first, it was an environment Space-time is different from its environment today. 127 00:12:10,281 --> 00:12:16,544 The first article began to change the shape of spacetime. 128 00:12:16,744 --> 00:12:21,825 In this space there is a substance A little more room here. 129 00:12:22,025 --> 00:12:27,080 And where there is an extra mass You will bend more space. 130 00:12:27,280 --> 00:12:31,196 And if space leans more, then there will be more mass. 131 00:12:31,449 --> 00:12:39,584 In the nascent universe, the most matter regions Intensity made deep curves in space-time. 132 00:12:39,784 --> 00:12:44,996 And when the mass increased with the fall Substances that become deeper and deeper. 133 00:12:45,196 --> 00:12:48,272 It attracts more material, it is a quick process. 134 00:12:48,472 --> 00:12:53,492 Gravity intensifies to attract more and more material. 135 00:12:53,692 --> 00:12:57,828 It became denser, and stars quickly generated. 136 00:12:58,028 --> 00:13:00,838 Then many stars, then a galaxy arose. 137 00:13:01,038 --> 00:13:06,759 These stars evolved and began to form compositions The largest and most of its nuclear fuel was burned. 138 00:13:06,759 --> 00:13:08,587 It blew up and made all the heavier elements. 139 00:13:08,587 --> 00:13:19,795 Over time things like planets arose The covers, the people, and everything we care about today. 140 00:13:19,995 --> 00:13:25,728 It all started as differences in Energy in expanded space. 141 00:13:25,928 --> 00:13:31,676 Initially, the slight differences became that The huge structures we see today. 142 00:13:31,876 --> 00:13:38,992 Over billions of years, that substance began By gathering into galaxies, stars, planets, and you. 143 00:13:39,192 --> 00:13:46,268 The differences in spacetime expansion patterned the universe. 144 00:13:47,809 --> 00:13:54,691 The curvature of space-time controlled In the development of everything we see today. 145 00:13:55,601 --> 00:13:59,074 If he did not possess spacetime The property and collects the material together. 146 00:13:59,274 --> 00:14:02,351 We will only be a thin mist of hydrogen gas. 147 00:14:02,551 --> 00:14:04,427 It wouldn't be an interesting universe. 148 00:14:04,627 --> 00:14:10,786 Because spacetime did not bend because of matter Inside it the universe will be strange. 149 00:14:10,986 --> 00:14:14,367 I mean there will be no attraction and no There is something that brings things together. 150 00:14:15,325 --> 00:14:21,200 The absence of the force of gravity means The absence of stars, planets or humans. 151 00:14:22,985 --> 00:14:26,517 We attribute our existence to space-time. 152 00:14:28,994 --> 00:14:32,210 But scientists struggle to understand it. 153 00:14:32,410 --> 00:14:35,634 I hope to know what spacetime is. 154 00:14:35,834 --> 00:14:42,503 We know things about spacetime, but in oneself Time feels like we know nothing about spacetime. 155 00:14:44,831 --> 00:14:49,149 Then in 2015, we had the opportunity. 156 00:14:49,149 --> 00:14:54,822 For the first time, "we heard" ripples in space-time. 157 00:14:55,022 --> 00:15:01,023 It generated one of the most intense events in the history of the universe. 158 00:15:19,838 --> 00:15:24,354 The universe is full of spacetime. 159 00:15:26,963 --> 00:15:34,283 We believe it has existed since every start Something quietly pulls the threads of the universe. 160 00:15:37,427 --> 00:15:43,145 Sometimes we watch this hidden controller while it is operating. 161 00:15:44,529 --> 00:15:50,089 In 2016, the silicon saw a strange visual phenomenon. 162 00:15:50,289 --> 00:15:54,411 A strange circle of light like a cosmic aura. 163 00:15:55,236 --> 00:16:00,622 This is what you really see in the sky if it were Your eyes are as sensitive as a telephoto, it's real. 164 00:16:00,822 --> 00:16:04,010 It is not a fake photo when we adjust the images. 165 00:16:04,210 --> 00:16:10,117 Something actually folds spacetime into a lens. 166 00:16:10,317 --> 00:16:17,048 This thing is a red galaxy away Seven billion light years from Earth. 167 00:16:17,087 --> 00:16:24,588 It bends light from a blue galaxy that should hide behind it. 168 00:16:24,788 --> 00:16:27,380 This is called a gravitational lensing effect. 169 00:16:28,352 --> 00:16:36,037 Gravitational lenticular effect is an amazing phenomenon because it manifests itself What Einstein clearly told us is that space is curved. 170 00:16:36,237 --> 00:16:40,093 Space works as a lens The two lenses work in my glasses. 171 00:16:40,293 --> 00:16:45,387 When we look at the universe we see it all, that's cool. 172 00:16:45,587 --> 00:16:53,446 The mass from the front galaxy makes bends In spacetime, which we know by gravity. 173 00:16:53,646 --> 00:16:59,698 Light follows those bends Vertically, and bend around the galaxy. 174 00:16:59,898 --> 00:17:07,389 It can giant bodies like clusters Hungarian to bend the path of light through space-time. 175 00:17:07,589 --> 00:17:11,940 Like the glass that deflects the path of light. 176 00:17:12,140 --> 00:17:16,892 When we look at a distant galaxy We have light passing through a galaxy cluster. 177 00:17:17,092 --> 00:17:20,775 We see many images of the same galaxy. 178 00:17:20,975 --> 00:17:26,443 We see parentheses and circles as if this The cluster is made of glass. 179 00:17:26,643 --> 00:17:33,911 We see spacetime collapse in front of our eyes. 180 00:17:35,064 --> 00:17:42,264 Lenticular gravitational effect gives us Area to see the effects of space-time on light. 181 00:17:43,138 --> 00:17:48,152 But it is only an indirect observation of spacetime. 182 00:17:49,742 --> 00:17:56,591 Is there another way to detect spacetime here on Earth? 183 00:17:56,591 --> 00:17:59,231 You can't see everything that happens in space. 184 00:17:59,431 --> 00:18:02,049 You should listen to him too. 185 00:18:06,408 --> 00:18:11,078 Believe it or not, space is an element More like this iron plate. 186 00:18:11,278 --> 00:18:13,647 Like this iron, space can bend. 187 00:18:13,847 --> 00:18:18,758 If I put too much weight on this The metal plate will change its shape and bend. 188 00:18:18,958 --> 00:18:22,873 It can amazingly space To carry waves, as well as this iron plate. 189 00:18:23,073 --> 00:18:26,756 And to make ripples with this plate You need something strong. 190 00:18:26,956 --> 00:18:30,034 Something like me and my hammer. 191 00:18:35,812 --> 00:18:39,440 See those waves traveling through this iron plate? 192 00:18:39,640 --> 00:18:47,232 The waves travel through space completely In the same way, we call it gravitational waves. 193 00:18:48,047 --> 00:18:56,716 Gravitational waves are vibrations of Cosmic events transmitted through the substance of spacetime. 194 00:18:56,916 --> 00:19:02,654 To launch waves into space, you need The most powerful and massive events in the universe. 195 00:19:02,654 --> 00:19:06,468 Something like a black hole collision. 196 00:19:06,668 --> 00:19:15,528 When two black holes collide, the released energy Shock waves are sent through space-time across the universe. 197 00:19:16,924 --> 00:19:21,731 When you get to the ground you are Slim is not measurable. 198 00:19:21,931 --> 00:19:23,687 Approximately. 199 00:19:24,179 --> 00:19:31,039 In 2015, scientists at the Lego Observatory made a revolutionary observation. 200 00:19:33,542 --> 00:19:38,113 They detected ripples in space-time. 201 00:19:38,454 --> 00:19:40,165 Gravitational waves. 202 00:19:40,365 --> 00:19:43,716 The commotion began to spread, but it became clear after a while. 203 00:19:43,716 --> 00:19:52,183 This was the first direct discovery of waves Gravity with human-made equipment on Earth. 204 00:19:53,202 --> 00:19:58,826 We discovered gravitational waves after waiting for signals for a long time. 205 00:19:59,026 --> 00:20:01,805 ... most of us just couldn't believe it. 206 00:20:02,005 --> 00:20:07,767 Rather, she kept doubting all theories Plot by all means to be false. 207 00:20:07,967 --> 00:20:13,510 When I saw that data, I still remember it Now, I remember her emotional impact on me. 208 00:20:13,510 --> 00:20:18,891 This feeling is only matched by seeing a face My daughter for the first time after her birth. 209 00:20:19,091 --> 00:20:30,998 Its emotional impact was huge, to reap the rewards Everything we did in one moment, is amazing. 210 00:20:33,510 --> 00:20:37,568 We can hear these gravitational waves on the ground. 211 00:20:37,610 --> 00:20:41,576 What astonishes us is that it was a coincidence - which was good. 212 00:20:41,576 --> 00:20:51,113 The signals that Lego measures are of a range Frequency of the sounds that the human ear feels. 213 00:20:51,313 --> 00:20:58,740 We can hear the wave frequency change when The black holes come close and collide. 214 00:21:01,072 --> 00:21:06,267 It is a high frequency that looks like this sound. 215 00:21:06,467 --> 00:21:13,861 What we heard with this voice is that two black holes They revolved around each other and collided. 216 00:21:14,187 --> 00:21:16,493 That's how it was. 217 00:21:16,493 --> 00:21:23,970 Listen to the ripples in space-time It gave us a powerful new tool to explore the universe. 218 00:21:24,170 --> 00:21:30,757 Now we hear things attractive for the first time It is a realization that we could not apply to the universe. 219 00:21:30,957 --> 00:21:33,366 And we start to find out. 220 00:21:33,566 --> 00:21:36,439 Observing gravitational waves from black holes. 221 00:21:36,439 --> 00:21:43,935 It is one of his most important discoveries One in astronomy in the past hundred years. 222 00:21:44,135 --> 00:21:47,105 It's hard to overstate how important it is Gravitational waves in astronomy. 223 00:21:47,305 --> 00:21:51,915 It's like directing Galileo Close up of the stars for the first time to see something new. 224 00:21:51,915 --> 00:21:54,928 We now have a new window into the universe. 225 00:21:57,601 --> 00:22:06,463 Gravitational lenticular effect and gravitational waves We see the complex relationship between gravity and space. 226 00:22:11,868 --> 00:22:15,160 But what about the other half of the equation? 227 00:22:15,360 --> 00:22:17,089 Time. 228 00:22:17,289 --> 00:22:25,605 It is spacetime, gravity does not fold Space not only distorted time. 229 00:22:25,805 --> 00:22:30,705 We may think that time cannot Change it, just pass it at a steady rate. 230 00:22:30,905 --> 00:22:33,960 But that is not the universe we live in. 231 00:22:34,160 --> 00:22:40,481 In some crazy circumstances, may My time depends on you. 232 00:22:42,655 --> 00:22:50,476 We may also travel via Time, and we return to the future. 233 00:23:06,778 --> 00:23:11,387 For science fiction lovers, space is the last resort. 234 00:23:12,371 --> 00:23:17,515 For scholars who are investigating Time is their biggest challenge. 235 00:23:18,584 --> 00:23:23,498 We thought time was recognized as sunrise and sunset. 236 00:23:23,698 --> 00:23:28,035 Today we realized that time is a more fundamental concept. 237 00:23:28,235 --> 00:23:34,395 Not only is time passing by But it is an essential part of our universe. 238 00:23:34,595 --> 00:23:38,765 It is part of the fabric of space-time. 239 00:23:39,724 --> 00:23:44,999 The Big Bang was the beginning of space and time. 240 00:23:45,564 --> 00:23:52,531 Since then, space has been expanding And time passed forward. 241 00:23:52,731 --> 00:24:00,519 It has been doing this for 13.8 billion years To make the universe that we see today. 242 00:24:01,345 --> 00:24:06,648 Space and time are connected to each other, they are the same. 243 00:24:06,848 --> 00:24:15,945 When matter affects space-time, do not make a deviation It depends not only on space but also on the passage of time. 244 00:24:16,145 --> 00:24:18,275 Then space-time becomes wonderful. 245 00:24:18,475 --> 00:24:25,450 Gravity also bends space It deflects the flow of time as well. 246 00:24:25,650 --> 00:24:30,554 It is not about our awareness of time But at the rate at which time applies. 247 00:24:30,754 --> 00:24:34,452 Huge objects can deflect and fold space-time. 248 00:24:34,652 --> 00:24:41,274 Not only does space deviate, but it can That the time itself slows or even stops. 249 00:24:41,474 --> 00:24:45,095 The greater the gravity, the greater the deviation. 250 00:24:45,295 --> 00:24:50,049 And what has the strongest attraction? . Black hole. 251 00:24:51,116 --> 00:24:55,010 By being close to the strong gravitational tension of the black hole. 252 00:24:55,210 --> 00:25:00,025 Hours can do strange things Then things get more interesting. 253 00:25:00,976 --> 00:25:07,780 About the black hole bends Space-time and deviation slows down time. 254 00:25:07,780 --> 00:25:14,051 Scientists dream of sending a probe there to test their hypothesis. 255 00:25:14,251 --> 00:25:17,037 There is a famous way of thinking This is called the "twin paradox.". 256 00:25:17,037 --> 00:25:21,713 Where twins are born at the same moment, they are the same age. 257 00:25:21,913 --> 00:25:26,485 But one of them is accelerated near a black hole He waits there for a while and then returns. 258 00:25:26,685 --> 00:25:31,074 If I had a twin symmetric shadow on Earth as I flew near a black hole. 259 00:25:31,274 --> 00:25:38,124 ... when we visually call, he will see me. 260 00:25:38,324 --> 00:25:41,500 ... and I'll see it. 261 00:25:41,700 --> 00:25:48,199 We will notice that time passes by A different rhythm relative to each other. 262 00:25:48,399 --> 00:25:52,022 The closer to the hole Black slows down time. 263 00:25:53,393 --> 00:26:03,143 Instead of going home, I fell into a hole ... black, so my twin pair on Earth slowed more. 264 00:26:03,343 --> 00:26:09,380 I totally stop and look firm on the horizon of the event. 265 00:26:09,380 --> 00:26:12,817 Time seems to stop. 266 00:26:12,969 --> 00:26:18,872 I feel sorry for him to come home again. 267 00:26:19,072 --> 00:26:25,277 If the twins managed to escape from The black hole will return to the future. 268 00:26:25,477 --> 00:26:30,763 Maybe a few days or weeks have passed And it depends on who traveled to the black hole. 269 00:26:30,963 --> 00:26:40,242 But the other is impure and has grandchildren Where he lived for decades on earth here. 270 00:26:42,258 --> 00:26:50,559 The black hole bends spacetime frequently So that science fiction becomes reality. 271 00:26:51,421 --> 00:27:01,069 Time travel is the foundation of science fiction We know that travel to the past is excluded in our universe. 272 00:27:01,269 --> 00:27:06,690 But time travel to the future is quite acceptable. 273 00:27:08,833 --> 00:27:16,180 Time travel is impossible so far, but I have Space-time is a real influence on our daily lives. 274 00:27:16,380 --> 00:27:19,884 Controls how we age. 275 00:27:21,268 --> 00:27:27,142 The key to different rates of passage of time is gravity. 276 00:27:27,342 --> 00:27:33,177 If you come across a different attractive environment You will have a different passage of time. 277 00:27:33,964 --> 00:27:43,169 When I go up those stairs and get away from The Earth�s mass turns my watch a little faster. 278 00:27:43,369 --> 00:27:48,840 If you go near the roof, your clock will slow down more. 279 00:27:49,040 --> 00:27:56,270 Our hours are sensitive enough to measure This difference in the validity of time. 280 00:27:57,179 --> 00:28:03,801 To maximize this effect we will see Running time varies before us. 281 00:28:04,001 --> 00:28:08,354 The closest we are to the earth seems sluggish. 282 00:28:08,554 --> 00:28:11,546 From above, they appear to be accelerating. 283 00:28:11,746 --> 00:28:18,892 This means that the rich are in their high apartments Aging faster than people on earth. 284 00:28:19,092 --> 00:28:22,146 This is an amazing idea. 285 00:28:22,346 --> 00:28:24,050 But it is true. 286 00:28:24,250 --> 00:28:29,238 The Earth's gravity controls time, even over the planet. 287 00:28:29,438 --> 00:28:34,135 Up 12.5 thousand miles up there Matrix of global positioning satellites. 288 00:28:34,135 --> 00:28:38,355 Important for navigational systems in our carts and mobile phones. 289 00:28:38,355 --> 00:28:43,110 Here on Earth, we use a system Global positioning as a way to navigate. 290 00:28:43,110 --> 00:28:47,314 Most people would get lost these days if 1 kilometer away from their homes. 291 00:28:47,314 --> 00:28:51,429 Unless they use global positioning programs On their phone to tell them their destination. 292 00:28:51,429 --> 00:29:00,185 Your GPS receiver is answering Signals more than four satellites to know your exact location. 293 00:29:01,022 --> 00:29:04,506 It is an accurate timing training. 294 00:29:04,706 --> 00:29:09,096 On board there is an atomic clock. 295 00:29:09,296 --> 00:29:17,726 Weak gravity in orbit means that hours The moons move a little faster than those on Earth. 296 00:29:17,926 --> 00:29:23,255 If we don't correct the fact that the hours are in Our moons are moving at different rates. 297 00:29:23,455 --> 00:29:26,488 When the Global Positioning System worked here on Earth. 298 00:29:26,688 --> 00:29:33,328 It will lose accuracy at rates that will not help the system Positioning in full is useful then in less than an hour. 299 00:29:33,328 --> 00:29:36,339 We correct this every minute every day. 300 00:29:39,376 --> 00:29:46,890 Space-time controlled all A stage in the evolution of our universe from its birth. 301 00:29:47,090 --> 00:29:54,820 We now discover that spacetime It will also determine how the universe will die. 302 00:30:12,499 --> 00:30:19,021 Our universe began with an explosion, 13.8 billion years ago. 303 00:30:19,221 --> 00:30:22,373 It has been expanding ever since. 304 00:30:23,185 --> 00:30:26,547 Does this expansion last forever? 305 00:30:26,747 --> 00:30:31,928 Or will the universe come to a violent end? 306 00:30:33,215 --> 00:30:37,237 We have known for more than a hundred years that the universe is expanding. 307 00:30:37,437 --> 00:30:41,026 Everything in the universe expands away from everything. 308 00:30:41,226 --> 00:30:46,697 We can test this by measuring the light from the exploding stars. 309 00:30:46,897 --> 00:30:51,023 Type 1a supernovae explode with the same luster. 310 00:30:51,023 --> 00:30:55,607 So scientists can know the exact distance from Earth. 311 00:30:56,822 --> 00:31:03,111 For decades astronomers have measured this The light that expands in expanding space. 312 00:31:05,192 --> 00:31:08,712 The universe is expanding, and there is matter in it. 313 00:31:08,912 --> 00:31:12,984 This substance has gravity and works to fold the curvature of space-time. 314 00:31:13,184 --> 00:31:20,666 It makes sense, then, that when the universe expands, it will hold together All materials cosmically attractive to each other. 315 00:31:20,866 --> 00:31:27,100 If there is enough material in the universe, it can To tighten itself enough to slow down the expansion. 316 00:31:28,666 --> 00:31:35,719 But in 1998, astronomers did With new measurements, they made an exciting discovery. 317 00:31:36,594 --> 00:31:44,616 People expected expansion to slow But in return, they found it accelerating. 318 00:31:44,816 --> 00:31:50,987 If expansion slows, it should appear These far lights are brighter. 319 00:31:51,187 --> 00:31:53,683 In contrast, it was darker. 320 00:31:53,883 --> 00:31:58,816 It was moving away faster than we expected. 321 00:31:59,776 --> 00:32:02,057 This means only one thing. 322 00:32:02,257 --> 00:32:08,078 Expansion is accelerating, it is accelerating every day. 323 00:32:08,278 --> 00:32:13,892 This discovery completely changed our understanding of the universe. 324 00:32:14,092 --> 00:32:20,952 In the first seven billion years of the universe The rate of expansion of the universe was slower and slower. 325 00:32:21,152 --> 00:32:24,653 Then something crazy happened. 326 00:32:24,853 --> 00:32:33,480 It is as if gravity has become the opposite, instead They attract galaxies as if they were pushing them away. 327 00:32:33,680 --> 00:32:38,103 This is an amazing result that we are still trying to understand. 328 00:32:39,573 --> 00:32:42,425 Was gravity losing its strength? 329 00:32:42,625 --> 00:32:46,979 Or was there something else that kept space apart? 330 00:32:47,179 --> 00:32:54,736 Then another component of our universe is behaving strangely. 331 00:32:54,936 --> 00:32:58,621 A mysterious entity is called dark energy. 332 00:32:58,821 --> 00:33:04,096 Like space-time, dark energy surrounds us. 333 00:33:05,007 --> 00:33:10,638 We do not see it, but it composes up to seventy Percent of matter in our universe. 334 00:33:10,838 --> 00:33:12,886 But what is it specifically? 335 00:33:13,086 --> 00:33:16,923 Darkness means that we do not know what it is and do not know its shape. 336 00:33:17,123 --> 00:33:21,467 Something is pouring energy In the universe, making it accelerate. 337 00:33:21,467 --> 00:33:22,389 We don't know what it is. 338 00:33:22,389 --> 00:33:23,867 There is no evidence at all. 339 00:33:23,867 --> 00:33:27,933 We do not have the slightest explanation, it is the biggest mystery in science today. 340 00:33:30,670 --> 00:33:34,213 Dark energy behaves in mysterious ways. 341 00:33:35,075 --> 00:33:42,662 Regular material is attractive, but energy Darkness drives this causing acceleration. 342 00:33:42,862 --> 00:33:48,087 Ordinary matter is affected by gravity You converge, but that does not happen with that substance. 343 00:33:48,405 --> 00:33:56,441 Is dark energy a new force in the universe? Or came like gravity from spacetime itself? 344 00:33:57,435 --> 00:34:00,907 Dark energy may be a property of spacetime. 345 00:34:01,107 --> 00:34:07,221 Perhaps space has energy and is What is being marketed to accelerate expansion. 346 00:34:07,421 --> 00:34:11,166 Dark energy is an entity, we don't know exactly what it is. 347 00:34:11,366 --> 00:34:16,118 But it will have a huge impact on Future changes in the universe three hundred fifty 00:34:16,189 --> 00:34:23,062 What would happen if you kept the energy Darkness on the acceleration of the expansion of our spacetime? 348 00:34:23,889 --> 00:34:28,794 Due to the presence of dark energy it will expand faster and faster. 349 00:34:28,994 --> 00:34:33,469 What makes the universe a more isolated place. 350 00:34:33,669 --> 00:34:36,881 ... all galaxies will accelerate apart. 351 00:34:37,081 --> 00:34:41,472 ... the universe will become darker and cooler. 352 00:34:41,672 --> 00:34:43,668 Everything will become darker and more isolated. 353 00:34:43,868 --> 00:34:48,186 There is a major candidate for what will happen in our future. 354 00:34:48,386 --> 00:34:52,018 In the end, our temporal universe freezes. 355 00:34:52,218 --> 00:34:58,003 The Great Freeze is the last end of the universe that we know. 356 00:34:58,203 --> 00:35:07,873 It is a terrible fate, a bleak fate But fortunately for us, it will only happen after a long time. 357 00:35:09,718 --> 00:35:14,481 After trillions of years, the universe may end in a great freeze. 358 00:35:19,182 --> 00:35:25,677 But a 2017 study suggests a more terrifying possibility. 359 00:35:26,574 --> 00:35:30,957 Dark energy may become more powerful. 360 00:35:31,157 --> 00:35:35,528 There is an outrageous possibility of the ultimate fate of the universe. 361 00:35:35,728 --> 00:35:44,016 Dark energy is strong enough To crush the gravitational pull of the galaxy itself. 362 00:35:44,216 --> 00:35:47,089 You might even be able to tear black holes apart. 363 00:35:48,510 --> 00:35:52,370 The fabric that ties everything together may be torn. 364 00:35:52,570 --> 00:35:54,587 This theory is called the Great Rip. 365 00:35:54,587 --> 00:36:00,396 Hungarian clusters will be torn first Then galaxies like ours are the Milky Way. 366 00:36:01,294 --> 00:36:04,354 Then our solar system will be torn apart. 367 00:36:04,554 --> 00:36:10,954 And in the last half hour of the universe, the Earth will explode. 368 00:36:11,310 --> 00:36:16,592 In the last second, the atoms will evaporate. 369 00:36:16,792 --> 00:36:22,977 Everything in the universe will be torn apart by the expansion of the universe. 370 00:36:23,177 --> 00:36:28,220 We don't understand dark energy, uh Fixed? Are you strengthening? Is it weakening? 371 00:36:28,220 --> 00:36:32,680 At that point, we don�t know. 372 00:36:32,680 --> 00:36:37,596 The future of our temporal universe is suspended. 373 00:36:37,796 --> 00:36:49,105 Asenah ends in great rip or great freezing? Or is the end just the beginning? 374 00:37:05,195 --> 00:37:12,752 Space-time controlled me The birth of our universe, and his death will be decided too. 375 00:37:14,983 --> 00:37:24,810 Today we discover that these two events are connected A link reveals a flaw in our understanding of the Big Bang. 376 00:37:25,010 --> 00:37:30,084 All that we see, all matter and all energy in our universe. 377 00:37:30,284 --> 00:37:33,882 She was previously held in A spot smaller than the size of an atom. 378 00:37:34,997 --> 00:37:40,507 We call that tiny infinitely small point. 379 00:37:42,326 --> 00:37:47,312 The general theory of relativity predicts the singularities. 380 00:37:48,402 --> 00:37:53,763 ... but the universe rules another set of rules. 381 00:37:55,063 --> 00:37:58,278 Quantum mechanics. 382 00:37:58,478 --> 00:38:10,172 Quantum mechanics is our description of the subatomic world Particles, fields, and fundamental forces and how they react. 383 00:38:10,372 --> 00:38:18,274 Quantum mechanics states that no The presence of something infinitesimally small or dense. 384 00:38:19,112 --> 00:38:22,923 The singularities cannot be present. 385 00:38:23,123 --> 00:38:30,057 Uniqueness is a small part where everything is finite because The densities are finite and the gravitational forces are finite. 386 00:38:30,057 --> 00:38:34,494 It breaks all laws and becomes unreasonable. 387 00:38:34,940 --> 00:38:39,823 The lack of uniqueness means no The presence of the Big Bang as we understand it. 388 00:38:40,023 --> 00:38:44,067 So how did our universe originate? 389 00:38:45,934 --> 00:38:49,350 Scientists now believe they have the answer. 390 00:38:49,550 --> 00:38:56,902 ... a solution consistent with general relativity and quantum mechanics. 391 00:38:57,102 --> 00:39:00,021 Quantum spacetime. 392 00:39:00,221 --> 00:39:07,339 Successful quantum spacetime theory answers Asked what had happened in the first moments of our universe. 393 00:39:07,539 --> 00:39:16,039 We hope that the correct quantum theory of gravity does not contain Any singularity, we'll replace the Big Bang with something else. 394 00:39:16,239 --> 00:39:22,943 If we know what this other thing is, it will be lost We deduce how and why the universe began. 395 00:39:23,143 --> 00:39:30,544 In the Big Bang of quantum space There was no uniqueness that exploded out of nowhere. 396 00:39:30,744 --> 00:39:37,534 Rather, the universe arose from the remains of another dying universe. 397 00:39:37,734 --> 00:39:45,350 A universe could exist before the Big Bang and space And a time, and instead of expanding the universe was shrinking. 398 00:39:47,546 --> 00:39:52,765 The universes may not have ended in rips or freezes. 399 00:39:52,965 --> 00:39:56,198 Maybe it collapses. 400 00:39:57,764 --> 00:40:04,233 An ancient universe then expanded He started to fall apart by his gravity. 401 00:40:04,433 --> 00:40:08,371 To crush space-time to a point. 402 00:40:10,303 --> 00:40:17,886 But instead of being unique Space-time erupted again. 403 00:40:18,086 --> 00:40:24,575 When matter became more dense when it was crushed That force pushed everything out. 404 00:40:24,775 --> 00:40:31,516 Then the universe rebounds and explodes again on a tour New from expansion and new great explosion. 405 00:40:31,716 --> 00:40:36,660 Understand that the Big Bang is the product of this bounce. 406 00:40:38,665 --> 00:40:46,869 This assumes that the spacetime decides on Our lives today came from the collapse of an ancient universe. 407 00:40:47,069 --> 00:40:54,489 And we live in an endless spacetime cycle of Birth, death, and rebirth. 408 00:40:55,290 --> 00:40:58,762 The universe of my space is bouncing. 409 00:40:58,762 --> 00:41:02,358 If we live in a regression, then who is it? It is accepted that the universe is very ancient. 410 00:41:02,358 --> 00:41:07,205 And he underwent an endless series of Bounces and no absolute start. 411 00:41:07,405 --> 00:41:15,350 We may be a repetition of an infinite number Of cycles in the life of an essential universe. 412 00:41:17,267 --> 00:41:20,448 We hardly understand space-time. 413 00:41:20,648 --> 00:41:23,763 Perhaps we will not fully understand it. 414 00:41:24,599 --> 00:41:31,349 But it is clear that without Spacetime when we were here. 415 00:41:32,186 --> 00:41:39,287 Space-time is a real thing, it is part of Basic architecture and furniture for reality. 416 00:41:41,389 --> 00:41:47,700 To understand the ultimate fate of our universe you will not It suffices to look only more closely at our approach. 417 00:41:47,900 --> 00:41:51,511 Rather, we must understand the fundamental nature of spacetime. 418 00:41:54,994 --> 00:42:02,800 I think the biggest thing we draw From all this is that the universe is strange. 419 00:42:04,888 --> 00:42:08,969 Many believe we are taking Drugs make up that and make up it. 420 00:42:08,969 --> 00:42:11,610 The answer is that we are driven by this madness. 421 00:42:11,610 --> 00:42:14,833 The universe is more crazy than we imagined. 422 00:42:17,479 --> 00:42:25,190 You are now living in a former complex, beautiful universe More than the human mind can perceive. 44036

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