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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:02,269 --> 00:00:06,870 In this episode... I can't tell you how many times we sat around a table and 2 00:00:06,870 --> 00:00:07,910 said they wanted to do what? 3 00:00:08,570 --> 00:00:12,570 I think we still have to pinch ourselves when we look at this building. 4 00:00:12,970 --> 00:00:15,770 The world's most slender skyscraper. 5 00:00:16,690 --> 00:00:20,950 No one has ever put together a project as unique and as special as this. 6 00:00:21,570 --> 00:00:24,290 And the pioneering historic innovations. 7 00:00:24,920 --> 00:00:29,520 It's deflecting quite a bit. We have to find another way to make it stiffer 8 00:00:29,520 --> 00:00:31,720 against the lateral force of the wind. 9 00:00:32,119 --> 00:00:36,400 I can't even imagine how windy it could be here in a storm. 10 00:00:36,720 --> 00:00:38,520 The forces must be just enormous. 11 00:00:40,160 --> 00:00:43,460 That made the impossible possible. 12 00:00:53,160 --> 00:00:57,140 New York City is the most densely populated city in the United States. 13 00:00:58,940 --> 00:01:03,620 The iconic island of Manhattan draws millions from around the globe to live, 14 00:01:03,840 --> 00:01:08,120 work, and play, and its real estate is among the most expensive in the world. 15 00:01:11,260 --> 00:01:15,760 Engineer John Schakalski is one of the countless inhabitants that call the city 16 00:01:15,760 --> 00:01:17,140 that never sleeps home. 17 00:01:18,440 --> 00:01:23,680 So it's about 8 .6 million people all trying to live in the same space in New 18 00:01:23,680 --> 00:01:24,680 York. 19 00:01:24,760 --> 00:01:28,760 It's incredible because there's never a dull moment. There's always crowded 20 00:01:28,760 --> 00:01:29,760 streets. 21 00:01:29,940 --> 00:01:31,860 Everyone wants to live on the island of Manhattan. 22 00:01:32,340 --> 00:01:37,540 And with nearly 3 million people commuting to this 23 -square -mile 23 00:01:37,540 --> 00:01:41,420 day for work, engineers have nowhere left to build but up. 24 00:01:43,370 --> 00:01:47,990 New York is synonymous with skyscrapers, or the Woolworth Building, Chrysler 25 00:01:47,990 --> 00:01:49,690 Building, Empire State Building. 26 00:01:50,430 --> 00:01:54,630 So as the population continues to grow, you need to come up with creative ways 27 00:01:54,630 --> 00:01:57,050 of how to build supertalls in Manhattan. 28 00:01:59,430 --> 00:02:04,270 Today, engineers are pushing the boundaries of design and technology 29 00:02:04,270 --> 00:02:05,270 than ever before. 30 00:02:12,220 --> 00:02:14,480 is 111 West 57th Street. 31 00:02:15,860 --> 00:02:22,280 With unparalleled 360 -degree views of Central Park in downtown Manhattan, this 32 00:02:22,280 --> 00:02:26,320 record -breaking skyscraper is the thinnest building ever constructed. 33 00:02:26,980 --> 00:02:30,340 Designing a building like this is a once -in -a -lifetime opportunity. 34 00:02:31,860 --> 00:02:35,740 This is definitely one of the most complicated, if not the most 35 00:02:35,780 --> 00:02:37,480 residential buildings around the world right now. 36 00:02:38,270 --> 00:02:43,290 What you don't see is all of the engineering feats that are behind the 37 00:02:43,470 --> 00:02:47,410 You have all these different components that are tied together that are just 38 00:02:47,410 --> 00:02:48,410 incredible. 39 00:02:52,770 --> 00:02:57,410 This gravity -defying giant marks the dawn of a new age of skyscraper. 40 00:02:59,730 --> 00:03:02,130 It takes about seven and a half minutes to get all the way up. 41 00:03:02,370 --> 00:03:03,390 It's a pretty nice ride. 42 00:03:06,360 --> 00:03:07,520 Going all the way up, Tommy. 43 00:03:09,220 --> 00:03:13,880 Once you clear all the surrounding lower buildings at this height, it's another 44 00:03:13,880 --> 00:03:14,880 planet, another world. 45 00:03:15,640 --> 00:03:17,180 This is the reason why we're building this. 46 00:03:28,160 --> 00:03:32,780 So right now we're standing higher than any viewing platform in all of New York. 47 00:03:33,340 --> 00:03:39,240 When you're up at this elevation, you got... 360 -degree views of everything 48 00:03:39,240 --> 00:03:40,600 surrounding Manhattan. 49 00:03:41,220 --> 00:03:44,840 You've got Central Park to the north, Statue of Liberty, the Freedom Tower. 50 00:03:45,120 --> 00:03:46,660 It really is just breathtaking. 51 00:03:49,900 --> 00:03:53,740 111's daring construction team reach heights few have ever been to. 52 00:03:54,540 --> 00:03:59,040 They are the only people to have ever experienced the tower's unrivaled views 53 00:03:59,040 --> 00:04:00,080 over New York City. 54 00:04:02,730 --> 00:04:06,610 Up here, we have ironworkers. They're bolting up, erecting the steel. 55 00:04:06,950 --> 00:04:11,150 It's pretty challenging up at 1 ,300 feet in the air, up to 1 ,400 feet. It's 56 00:04:11,150 --> 00:04:12,150 pretty intense. 57 00:04:12,210 --> 00:04:16,630 Every day, I'm blown away by the amount of engineering and time and planning it 58 00:04:16,630 --> 00:04:18,570 goes into putting this type of a building in place. 59 00:04:23,070 --> 00:04:28,950 Built over the historic Steinway Concert Hall, 111 West 57th Street sits on an 60 00:04:28,950 --> 00:04:30,630 incredibly small plot of land. 61 00:04:32,940 --> 00:04:39,520 Once complete, this 84 -story, 1 ,428 -foot -tall building will be one of the 62 00:04:39,520 --> 00:04:41,720 tallest residential towers in the city. 63 00:04:43,820 --> 00:04:49,240 With a width -to -height ratio of 1 to 24, it is the thinnest skyscraper in the 64 00:04:49,240 --> 00:04:54,980 world. A mix of bronze, glass, and terracotta cover the tower's enormous 1 65 00:04:54,980 --> 00:04:58,460 ,257 -foot concrete sheer walls. 66 00:04:59,440 --> 00:05:04,780 At the top... A 170 -foot -high steel crown will make this tower the second 67 00:05:04,780 --> 00:05:07,420 tallest residential building in the Western Hemisphere. 68 00:05:13,740 --> 00:05:18,180 What gets me out of bed in the morning is to take on the challenges of 69 00:05:18,180 --> 00:05:21,720 this, putting this job together, and getting it to completion. 70 00:05:21,980 --> 00:05:23,720 So there's no rest until it's done. 71 00:05:25,540 --> 00:05:29,940 But this ambitious project poses serious engineering challenges. 72 00:05:30,520 --> 00:05:34,400 How do you strengthen a skinny structure without giving up floor space? 73 00:05:35,300 --> 00:05:39,340 The challenge is how do we get rid of columns like this, minimize it, open up 74 00:05:39,340 --> 00:05:40,099 the floor space? 75 00:05:40,100 --> 00:05:41,540 You can't just take the columns out. 76 00:05:41,820 --> 00:05:44,680 There needs to be something there that supports the actual structure itself. 77 00:05:47,720 --> 00:05:52,080 And how do you prevent such an incredibly thin tower from collapsing in 78 00:05:52,080 --> 00:05:53,080 winds? 79 00:05:54,120 --> 00:05:58,260 Cynthia Liu and her structural engineering team are experts in coming 80 00:05:58,260 --> 00:06:00,240 unconventional design solutions. 81 00:06:01,520 --> 00:06:06,660 As we can see here, this is the existing Steinway building, and next to the 82 00:06:06,660 --> 00:06:09,300 Steinway building is the new plot we have to work with. 83 00:06:09,580 --> 00:06:13,580 From this angle, you can really see how narrow the new building is. 84 00:06:14,540 --> 00:06:19,660 Before construction began, engineers had a 59 -foot wide site to build on. 85 00:06:21,550 --> 00:06:26,570 In order for the building to stand up tall like this, we have to engineer it 86 00:06:26,570 --> 00:06:29,450 a way so the building can stay as is. 87 00:06:32,510 --> 00:06:37,090 As you can see, the building is slender and it doesn't have a lot of footprint 88 00:06:37,090 --> 00:06:39,930 to sustain the load that applies to the building. 89 00:06:41,670 --> 00:06:45,030 Most buildings will have the load imposed on the rocks. 90 00:06:45,510 --> 00:06:49,290 But here, because the building is slender and it has to take the wind 91 00:06:49,290 --> 00:06:52,190 the foundation of the building, there's a lot of uplifting load. 92 00:06:52,410 --> 00:06:57,030 It needs to be engineered and taken care of so the building doesn't fly away in 93 00:06:57,030 --> 00:06:58,030 the wind. 94 00:06:58,250 --> 00:07:02,950 Without a wide base to support the tower, how can engineers brace it 95 00:07:02,950 --> 00:07:03,950 wind? 96 00:07:04,130 --> 00:07:09,150 To achieve the impossible, engineers will need to draw inspiration from the 97 00:07:09,150 --> 00:07:10,470 pioneers of the past. 98 00:07:16,880 --> 00:07:23,400 Cork Harbor, a vast network of busy shipping channels on the south coast of 99 00:07:23,400 --> 00:07:30,260 Ireland, where engineer Magda Heidikevich is searching for a relic of 100 00:07:30,260 --> 00:07:31,260 navigation. 101 00:07:35,580 --> 00:07:40,280 For hundreds of years, the beautiful Cork Harbor has been a very busy port. 102 00:07:40,580 --> 00:07:45,700 It was a gateway for trade and migration and a very important naval base. 103 00:07:47,370 --> 00:07:52,430 The waterways connecting to the city are very shallowed places and require 104 00:07:52,430 --> 00:07:53,550 careful navigation. 105 00:07:54,010 --> 00:07:56,350 Otherwise, the ships can run aground. 106 00:07:57,130 --> 00:08:01,870 There used to be floating lights to indicate the shallow waters of Cork 107 00:08:02,230 --> 00:08:06,770 However, they would move around and can be even destroyed in stormy conditions. 108 00:08:07,070 --> 00:08:11,470 A more permanent structure was needed to withstand the force of the tide. 109 00:08:14,730 --> 00:08:17,630 Despite being blind since the age of 22, 110 00:08:19,010 --> 00:08:22,930 engineer Alexander Mitchell had no problem visualizing a solution. 111 00:08:25,530 --> 00:08:31,510 In 1833, he patented a device that enabled him to build a structure where 112 00:08:31,510 --> 00:08:32,510 could before. 113 00:08:37,470 --> 00:08:39,870 This is the Spitbank Lighthouse. 114 00:08:43,309 --> 00:08:49,490 It was built in 1853, 166 years ago, and it still 115 00:08:49,490 --> 00:08:52,190 withstands the powerful forces of the ocean. 116 00:08:53,990 --> 00:08:59,250 Protruding from the water on nine 46 -foot -long wrought iron stilts, this 117 00:08:59,250 --> 00:09:04,530 iconic beacon stands in stark contrast to traditional stone lighthouses on the 118 00:09:04,530 --> 00:09:05,530 shore. 119 00:09:06,350 --> 00:09:13,280 What Mitchell decided to do was place nine stilts that would be sitting... on 120 00:09:13,280 --> 00:09:18,240 the seabed. However, that wasn't good enough to withstand the powerful lateral 121 00:09:18,240 --> 00:09:22,000 forces of the tide and also lateral forces of the wind. 122 00:09:22,240 --> 00:09:27,460 He had to extend those stills down to the ground, but those stills could be 123 00:09:27,460 --> 00:09:31,700 pulled off from the ground. So he had to anchor them down. 124 00:09:32,060 --> 00:09:36,520 So the very crucial part of the solution are the ingenious anchors that Mitchell 125 00:09:36,520 --> 00:09:37,520 came up with. 126 00:09:39,400 --> 00:09:44,800 To secure the stilts 16 feet below the seabed, Mitchell relied on his own 127 00:09:44,800 --> 00:09:45,820 brilliant invention. 128 00:09:48,640 --> 00:09:53,800 Drawing inspiration from the corkscrew, he deployed crews on floating rafts to 129 00:09:53,800 --> 00:09:56,040 turn the supports and twist them into the ground. 130 00:09:59,320 --> 00:10:03,340 Fastening the framework to the seafloor has locked it in place against the 131 00:10:03,340 --> 00:10:04,840 wildest winds and waves. 132 00:10:09,930 --> 00:10:15,410 meters above the seabed. It's really windy, very strong lateral wind forces 133 00:10:15,410 --> 00:10:16,410 tidal forces. 134 00:10:16,590 --> 00:10:20,330 I can't even imagine how it could be here in a storm. 135 00:10:20,590 --> 00:10:22,450 The forces must be just enormous. 136 00:10:22,850 --> 00:10:25,050 But the structure is not going anywhere. 137 00:10:25,270 --> 00:10:26,350 It's very stable. 138 00:10:26,870 --> 00:10:32,210 The anchors holding this structure stable in such strong wings would become 139 00:10:32,210 --> 00:10:35,150 handy when building a tall skyscraper. 140 00:10:38,540 --> 00:10:41,980 Spitbank Lighthouse has become an icon for the city of Cork. 141 00:10:43,280 --> 00:10:47,560 Standing proud in the bay is testament to the resilience of ground anchoring. 142 00:10:48,920 --> 00:10:53,620 When Mitchell designed the structure to withstand the forces of waves and winds, 143 00:10:54,060 --> 00:10:56,640 he made it stronger than anyone could have imagined. 144 00:10:57,080 --> 00:11:02,620 I doubt he thought that this structure would still be here 166 years later. 145 00:11:06,790 --> 00:11:11,310 Mitchell's novel solution of anchoring to the ground wasn't just meant for the 146 00:11:11,310 --> 00:11:16,010 sea. Today, when people want to build taller, they have to take into account 147 00:11:16,010 --> 00:11:19,810 strong lateral forces that the structure must withstand. 148 00:11:20,830 --> 00:11:23,250 What an amazing engineering solution. 149 00:11:26,010 --> 00:11:30,530 In Manhattan, engineers have taken Mitchell's ground anchor concept and 150 00:11:30,530 --> 00:11:31,590 supersized it. 151 00:11:32,120 --> 00:11:36,160 in order to secure New York's third largest tower to the ground. 152 00:11:53,560 --> 00:11:57,360 New York City is best known for its iconic skyline. 153 00:11:58,460 --> 00:12:03,730 But in this densely populated metropolis, Engineers are running out of 154 00:12:03,730 --> 00:12:08,510 build, so they are forced to come up with an innovative solution that allows 155 00:12:08,510 --> 00:12:12,030 them to build not only super tall, but super skinny. 156 00:12:13,270 --> 00:12:20,250 At 1 ,428 feet high, 111 West 57th Street is the world's thinnest 157 00:12:20,250 --> 00:12:21,250 tower. 158 00:12:21,430 --> 00:12:27,530 This remarkable 84 -story residential building features a 1 to 24 width to 159 00:12:27,530 --> 00:12:31,170 height ratio, soaring high above Billionaire's Row. 160 00:12:31,520 --> 00:12:36,280 But securing New York's third tallest tower to the ground is a major anchoring 161 00:12:36,280 --> 00:12:37,280 system challenge. 162 00:12:37,660 --> 00:12:42,260 So engineers have taken Alexander Mitchell's ground anchoring concept to 163 00:12:42,260 --> 00:12:43,260 next level. 164 00:12:43,620 --> 00:12:48,040 Tasked with fastening the building in place, engineer Cynthia Liu is heading 165 00:12:48,040 --> 00:12:50,700 down to the lowest accessible part of the building. 166 00:12:53,100 --> 00:12:59,180 In order for the building not to tip over, we have 192 rock anchors. 167 00:13:01,320 --> 00:13:06,120 This is the rock anchor that's used on this job, which is, as you can see, it's 168 00:13:06,120 --> 00:13:09,880 pretty heavy, and it's hard to lift, even a small piece like this. 169 00:13:10,180 --> 00:13:13,500 And we have about 50 of them in this wall here. 170 00:13:13,700 --> 00:13:17,740 The rock anchors we have here, we use them as heavy as you can get on the 171 00:13:17,740 --> 00:13:18,740 market. 172 00:13:20,420 --> 00:13:24,800 Once the foundations of the historic Steinway building are carefully 173 00:13:25,130 --> 00:13:31,590 and incredible 192 gigantic steel rods are drilled nearly 80 feet down into the 174 00:13:31,590 --> 00:13:32,590 bedrock. 175 00:13:33,530 --> 00:13:38,950 In this case, they're not screwed in, but instead they expand to lock into the 176 00:13:38,950 --> 00:13:44,070 rock. As lateral wind hits the tower, the anchors can withstand a tremendous 177 00:13:44,070 --> 00:13:48,170 uplifting force of 57 ,320 tons. 178 00:13:51,080 --> 00:13:54,260 This is the design drawing that we issued for this building. 179 00:13:54,500 --> 00:13:57,960 You can see all the little dots representing the rock anchors. 180 00:13:58,360 --> 00:14:01,600 All the forces are transferred to the rock anchors in the area. 181 00:14:01,900 --> 00:14:06,120 The rock anchors transfer to the rock underneath, so the force is transferred 182 00:14:06,120 --> 00:14:08,500 from the top all the way to the bottom. 183 00:14:10,780 --> 00:14:15,200 Building on Mitchell's remarkable concept, the team has installed one of 184 00:14:15,200 --> 00:14:19,920 highest concentrations of ground anchors seen on any skyscraper in the world. 185 00:14:21,360 --> 00:14:26,640 Each rock anchor is about three inches in diameter, and they vary from 50 feet 186 00:14:26,640 --> 00:14:31,040 to 75 feet deep below the rock. So that's holding the building. 187 00:14:32,740 --> 00:14:36,500 Without the rock anchors, the building definitely will turn over in the wind 188 00:14:36,500 --> 00:14:39,760 load. So definitely we need the rock anchors to hold the building down. 189 00:14:41,040 --> 00:14:45,840 Now that a strong foothold has been established, the Super Slender 190 00:14:45,840 --> 00:14:47,380 can rise into the clouds. 191 00:14:52,560 --> 00:14:57,920 The first stage of this megaproject is complete, but engineers face more 192 00:14:57,920 --> 00:14:59,260 impossible challenges. 193 00:15:01,680 --> 00:15:08,460 Sixty vast apartments will each occupy at least one entire floor, as well as 194 00:15:08,460 --> 00:15:10,080 six two -story penthouses. 195 00:15:13,220 --> 00:15:16,080 But high winds equal high stakes. 196 00:15:18,080 --> 00:15:23,380 Even once secured into the rock, The superstructure is exposed to the 197 00:15:23,380 --> 00:15:27,680 elements. Protecting it from bending and breaking is the top priority for 198 00:15:27,680 --> 00:15:29,740 project director John Schakalski. 199 00:15:30,320 --> 00:15:35,780 So down here, we're about 50 feet down below street level. And you can see that 200 00:15:35,780 --> 00:15:40,720 these massive columns act to take the load of the structure from the wind and 201 00:15:40,720 --> 00:15:43,540 transfer it down floor to floor to floor into the foundation. 202 00:15:44,320 --> 00:15:48,300 As you get into the superstructure where you're trying to create these luxurious 203 00:15:48,300 --> 00:15:52,340 apartments with grand views of all of Manhattan, you don't want a giant column 204 00:15:52,340 --> 00:15:54,480 like this in the middle of your living room or dining room. 205 00:15:56,480 --> 00:16:00,480 So you can't just take the columns out. You need something there to hold up the 206 00:16:00,480 --> 00:16:01,480 building. 207 00:16:02,040 --> 00:16:06,500 Both floor space and rigidity are crucial in a residential high -rise. 208 00:16:07,260 --> 00:16:11,500 Defending the slender tower from breaking in the wind might be impossible 209 00:16:11,500 --> 00:16:13,660 without the innovators of the past. 210 00:16:21,650 --> 00:16:23,970 Chicago, the Windy City. 211 00:16:26,310 --> 00:16:30,290 Known for a skyline punctuated by soaring skyscrapers. 212 00:16:31,030 --> 00:16:32,950 This view never gets old. 213 00:16:33,290 --> 00:16:35,070 It's one of the world's great skylines. 214 00:16:36,830 --> 00:16:41,950 Architect and historian Tom Leslie is in search of a daring innovation amongst 215 00:16:41,950 --> 00:16:43,590 the city's towering giants. 216 00:16:45,700 --> 00:16:50,340 Chicago is the city that really pushed the development of tall buildings 217 00:16:50,340 --> 00:16:51,480 than any other city. 218 00:16:51,800 --> 00:16:54,540 This was a real laboratory for tall building construction. 219 00:16:56,500 --> 00:17:02,000 So the big development was to move away from brick construction and to replace 220 00:17:02,000 --> 00:17:03,000 that with steel. 221 00:17:04,260 --> 00:17:09,560 As buildings get taller and taller, they start to get so tall that the steel 222 00:17:09,560 --> 00:17:13,940 frames are too flexible. They move too much in the wind. 223 00:17:14,319 --> 00:17:17,480 And there's a limit to how tall you can build a steel frame. 224 00:17:17,740 --> 00:17:21,000 Beyond that, engineers are looking for another way to help stiffen the 225 00:17:21,000 --> 00:17:22,000 buildings. 226 00:17:23,500 --> 00:17:26,720 To demonstrate the problem, Tom has scaled it down. 227 00:17:28,140 --> 00:17:33,240 So we have here a working wind tunnel that's used to test skyscrapers, see how 228 00:17:33,240 --> 00:17:34,440 they respond to wind. 229 00:17:34,860 --> 00:17:37,680 We're going to use it to test this model of a frame. 230 00:17:37,900 --> 00:17:40,000 We have girders, we have beams. 231 00:17:40,320 --> 00:17:42,460 So we have here a curtain wall. 232 00:17:43,110 --> 00:17:47,530 It has no structural capability on its own. It's very much like a glass skin 233 00:17:47,530 --> 00:17:49,730 that you would hang on the outside of the structure. 234 00:17:52,270 --> 00:17:56,590 We've turned the wind on, and as you can see, it's having quite an effect on our 235 00:17:56,590 --> 00:17:57,509 building frame. 236 00:17:57,510 --> 00:18:01,330 It's deflecting quite a bit, and it's moving quite a lot. It's not a building 237 00:18:01,330 --> 00:18:03,410 any of us would ever want to be in. 238 00:18:03,670 --> 00:18:08,310 We have to find another way to help stabilize it, to make it stiffer against 239 00:18:08,310 --> 00:18:09,670 lateral force of the wind. 240 00:18:11,050 --> 00:18:15,430 So one way we can stiffen the frame is we can take pieces of the building that 241 00:18:15,430 --> 00:18:19,890 we already have, elevator cores, fire stairs, things like that, and we can put 242 00:18:19,890 --> 00:18:25,750 very massive stiff core around them. But a large core, or even column, take up 243 00:18:25,750 --> 00:18:27,030 valuable floor space. 244 00:18:29,550 --> 00:18:33,370 So what we've done is we've taken our giant core, and we've put it right in 245 00:18:33,370 --> 00:18:34,570 middle of the building structure. 246 00:18:35,010 --> 00:18:40,050 It's bearing on several of the beams, which in turn are sitting on the 247 00:18:40,540 --> 00:18:44,460 So you can see that the central core is working. It's stabilizing the building. 248 00:18:44,640 --> 00:18:48,020 But you can also see that the frame is still moving quite a bit. 249 00:18:48,240 --> 00:18:52,440 The other problem with such a massive core is that it's taking up more space 250 00:18:52,440 --> 00:18:56,360 than we'd like. We're not able to rent out the space that's within the core. 251 00:18:58,840 --> 00:19:03,000 When faced with the challenge of bracing a tower without compromising floor 252 00:19:03,000 --> 00:19:08,350 space... Engineer Fazler Khan conceived an ingenious way to utilize pre 253 00:19:08,350 --> 00:19:10,030 -existing structural components. 254 00:19:11,870 --> 00:19:17,070 His remarkable space -saving technique was the shear wall interaction system. 255 00:19:17,590 --> 00:19:22,530 We can take the wind resistance that that massive core has and spread it out 256 00:19:22,530 --> 00:19:24,710 into a pair of shear walls. 257 00:19:25,130 --> 00:19:28,990 tall planes that line each side of the building and resist the wind. 258 00:19:29,250 --> 00:19:33,710 This spreads the resistance that the core has out, which will give us the 259 00:19:33,710 --> 00:19:34,950 floor plates that we want. 260 00:19:35,670 --> 00:19:40,450 With rigid exterior walls, the size of the inner core can be reduced. 261 00:19:40,870 --> 00:19:45,410 And Kahn's clever addition was to connect the components with stiff 262 00:19:45,410 --> 00:19:48,790 floor plates so that the whole system worked as one. 263 00:19:52,720 --> 00:19:57,040 We've turned the wind on, and as you can see, all of the pieces of the building 264 00:19:57,040 --> 00:20:00,800 are working together. We're taking advantage of the stiffness of the shear 265 00:20:00,800 --> 00:20:04,940 walls, the stiffness of the core, the stiffness of the floor plates. 266 00:20:05,160 --> 00:20:09,800 All of them are working together to create an integrated wind -resistant 267 00:20:13,460 --> 00:20:17,920 And Kahn was able to prove his theory worked on a scale never seen before. 268 00:20:22,170 --> 00:20:27,910 is the Brunswick building, the world's first tower to be supported by sheer 269 00:20:27,910 --> 00:20:28,910 interaction. 270 00:20:29,510 --> 00:20:33,590 The Brunswick's exterior structure is four massive sheer walls. 271 00:20:33,790 --> 00:20:37,570 On the inside, there's a set of sheer walls within the building core. 272 00:20:37,990 --> 00:20:40,430 To tie these two systems together, 273 00:20:41,170 --> 00:20:46,170 Kahn designed very, very stiff concrete floors that ensure that when one system 274 00:20:46,170 --> 00:20:49,010 moves, the other system has to move as well. 275 00:20:50,860 --> 00:20:55,120 things that were already there and so the floor plates in the brunswick 276 00:20:55,120 --> 00:21:01,220 are all open between the core and the exterior wall more than 80 percent of 277 00:21:01,220 --> 00:21:06,920 every floor is rentable which is an incredibly high number for the era 278 00:21:06,920 --> 00:21:12,500 sheer wall interaction the brunswick building opened in 1965 as the tallest 279 00:21:12,500 --> 00:21:15,120 reinforced concrete structure in the world 280 00:21:15,850 --> 00:21:19,250 The Brunswick was a building that was miles ahead of its time when it was 281 00:21:19,290 --> 00:21:23,230 and it's a building that was influential for generations, even down to today. 282 00:21:35,410 --> 00:21:40,630 At New York's Guy High megastructure, engineers are taking Kahn's pioneering 283 00:21:40,630 --> 00:21:42,050 technique to new heights. 284 00:21:44,840 --> 00:21:49,360 Just like in Chicago, they are bracing the high -rise with a sheer wall 285 00:21:49,360 --> 00:21:52,200 interaction system on a colossal scale. 286 00:22:09,940 --> 00:22:15,120 111 West 57th Street is on track to become the thinnest skyscraper in the 287 00:22:15,340 --> 00:22:19,800 But in order to endure high winds, it will need a very sturdy structure. 288 00:22:20,140 --> 00:22:24,980 So engineers are bracing the high rise with a shear wall interaction system. 289 00:22:26,780 --> 00:22:32,440 So here we are on the lower floors of the actual superstructure, and you can 290 00:22:32,440 --> 00:22:37,440 how big the shear walls are. They're over five feet thick down at the base of 291 00:22:37,440 --> 00:22:38,119 the building. 292 00:22:38,120 --> 00:22:39,120 They're pretty massive. 293 00:22:39,660 --> 00:22:46,240 The shear walls here extend about 60 feet below street level to 1 ,257 feet 294 00:22:46,240 --> 00:22:46,799 the air. 295 00:22:46,800 --> 00:22:48,980 They are some of the tallest shear walls on the planet. 296 00:22:54,660 --> 00:23:01,060 The interaction system at 111 West 57th Street has five shear walls all working 297 00:23:01,060 --> 00:23:02,059 in unison. 298 00:23:02,060 --> 00:23:05,440 The east and west walls form the exterior structure. 299 00:23:05,840 --> 00:23:09,720 and flank three core shear walls, including the elevator shaft. 300 00:23:10,460 --> 00:23:16,260 As 1 .3 million cubic feet of concrete is poured one floor at a time, the 301 00:23:16,260 --> 00:23:22,660 configuration rises like an oversized I -beam to over 1 ,247 feet high. 302 00:23:24,800 --> 00:23:29,380 As the mammoth shear walls climb to the highest levels of the tower, they 303 00:23:29,380 --> 00:23:30,700 undergo a transformation. 304 00:23:34,190 --> 00:23:38,050 So here we are on one of the upper duplexes in the tower. 305 00:23:38,630 --> 00:23:45,030 And as we get higher up in the building, the sheer walls take a step in two 306 00:23:45,030 --> 00:23:48,430 directions. They lengthwise, they shorten up, and widthwise. 307 00:23:49,470 --> 00:23:55,070 So you can imagine this wall was over this wide down in the subcellar. And as 308 00:23:55,070 --> 00:23:58,810 you got up into the building, it's about a foot and a half thick. By having 309 00:23:58,810 --> 00:24:02,850 thinner walls up top, it increases the usable floor space. 310 00:24:04,250 --> 00:24:07,070 apartment space actually on the floor plan. 311 00:24:09,050 --> 00:24:14,490 Not only do the shear walls taper in width, they also take steps in length to 312 00:24:14,490 --> 00:24:16,450 create the tower's feathered profile. 313 00:24:17,110 --> 00:24:23,870 85 stiff concrete floors tie the system together, forming one massive monolithic 314 00:24:23,870 --> 00:24:28,910 structure. Should wind hit from any direction, the load is transferred 315 00:24:28,910 --> 00:24:29,990 the rigid components. 316 00:24:30,250 --> 00:24:33,750 downward into the 66 -foot thick concrete foundations. 317 00:24:37,510 --> 00:24:42,030 So the giant columns you saw down in the basement no longer exist up here, which 318 00:24:42,030 --> 00:24:43,570 opens up the entire floor space. 319 00:24:44,010 --> 00:24:50,010 By pushing the limit of concrete construction, the monumental project at 320 00:24:50,010 --> 00:24:53,510 West 57th Street can climb into the sky. 321 00:24:54,090 --> 00:24:58,070 The shear walls act just so much more than regular walls. They're transferring 322 00:24:58,070 --> 00:24:59,990 all the forces down into the foundation. 323 00:25:00,310 --> 00:25:03,070 Without the shear walls, there's no way this building would have been possible. 324 00:25:04,210 --> 00:25:07,830 All the engineering that's gone into the design of the shear walls, being able 325 00:25:07,830 --> 00:25:11,130 to handle all the outside forces, is just unprecedented. 326 00:25:16,410 --> 00:25:21,790 With the monster shear walls topped out, the building stands proud over New 327 00:25:21,790 --> 00:25:22,790 York. 328 00:25:24,200 --> 00:25:29,460 But left untouched, a colossal concrete pillar could be an eyesore on the city 329 00:25:29,460 --> 00:25:30,460 skyline. 330 00:25:31,660 --> 00:25:36,940 Architect Dana Getman has a creative solution to make the super -slender 331 00:25:36,940 --> 00:25:42,290 out. This tower is really unique in that the east and west facades are the 332 00:25:42,290 --> 00:25:47,190 structure. And to really take advantage of that, we clad it with this beautiful 333 00:25:47,190 --> 00:25:52,030 terracotta, which we designed with a waving undulation of shapes that will 334 00:25:52,030 --> 00:25:56,270 create a shadow pattern as the sun casts across the facade. 335 00:25:57,290 --> 00:26:01,730 When we started the design process, we really looked at the DNA of New York 336 00:26:01,730 --> 00:26:06,790 buildings. We really wanted to get that richness, but in a contemporary design. 337 00:26:07,630 --> 00:26:12,190 But the building's distinctive form makes facade installation extremely 338 00:26:12,190 --> 00:26:13,190 challenging. 339 00:26:13,590 --> 00:26:18,290 It is unique to have double shear walls on the exterior of your building. Most 340 00:26:18,290 --> 00:26:21,830 of the time when people install a curtain wall, you slide it to the edge 341 00:26:21,830 --> 00:26:25,710 hang it from the floor above. But when you're installing it on a shear wall, 342 00:26:25,830 --> 00:26:27,070 it's a little bit more complicated. 343 00:26:27,990 --> 00:26:30,470 With solid concrete obstructing the way. 344 00:26:30,960 --> 00:26:35,460 The team has come up with a one -of -a -kind installation method to navigate 345 00:26:35,460 --> 00:26:37,020 unique wall configuration. 346 00:26:37,800 --> 00:26:44,480 The team here on site built a custom gantry to be able to take the facade 347 00:26:44,480 --> 00:26:46,440 to their position on the shear wall. 348 00:26:49,720 --> 00:26:54,500 Once hooked up to the crane, facade panels are flown out over the city 349 00:26:54,500 --> 00:26:56,080 hundreds of feet above the street. 350 00:26:58,350 --> 00:27:03,050 The enormous pieces are traversed around the outside of the sheer walls to the 351 00:27:03,050 --> 00:27:06,510 installation team on the gigantic two -stage hanging gantry. 352 00:27:07,770 --> 00:27:13,010 They have to change hands several times in a precise and delicate procedure to 353 00:27:13,010 --> 00:27:15,430 fix them to the east and west sheer walls. 354 00:27:18,010 --> 00:27:24,130 The result is a striking hybrid of New York's Art Deco heritage with the 355 00:27:24,130 --> 00:27:25,830 -edge architecture of the future. 356 00:27:27,240 --> 00:27:32,320 I am incredibly impressed with the team here on site and how smoothly the 357 00:27:32,320 --> 00:27:33,360 installation has gone. 358 00:27:33,840 --> 00:27:38,500 When you look at the building from a distance, you see the waves of shadow 359 00:27:38,500 --> 00:27:41,120 you really see the impact of this building on the skyline. 360 00:27:41,360 --> 00:27:43,120 We couldn't be happier with it. 361 00:27:48,580 --> 00:27:54,460 But to realize their dreams of creating extraordinary apartments, engineers face 362 00:27:54,460 --> 00:27:55,580 yet another challenge. 363 00:27:56,360 --> 00:28:02,180 So our units are 15 foot 6 from floor to floor, and that creates the need for a 364 00:28:02,180 --> 00:28:05,420 larger piece of glass in order to maximize the views that we have. 365 00:28:06,100 --> 00:28:11,680 To create more impossible engineering, the team will have to go back in time. 366 00:28:12,340 --> 00:28:13,920 Oh, wow, I can see the ripples. 367 00:28:14,920 --> 00:28:17,300 So that's the glass floating on the team. 368 00:28:36,400 --> 00:28:41,580 Soaring over New York's prestigious Billionaire's Row is the city's latest 369 00:28:41,580 --> 00:28:42,580 project. 370 00:28:47,060 --> 00:28:51,520 111 West 57th Street is the world's thinnest skyscraper. 371 00:28:53,140 --> 00:28:57,900 Rising into the sky, it towers above the neighbors and the city below. 372 00:29:01,240 --> 00:29:05,740 Construction of the third tallest tower in New York is nearing completion. 373 00:29:06,730 --> 00:29:12,290 The project's final phase is underway, preparing 60 luxury apartments for 374 00:29:12,290 --> 00:29:13,290 habitation. 375 00:29:14,990 --> 00:29:16,610 All right, are you going all the way up? 376 00:29:17,490 --> 00:29:18,490 Yeah. 377 00:29:18,870 --> 00:29:20,630 When you're done, we've got to pick up on one. 378 00:29:21,070 --> 00:29:26,330 But to make the whole development worthwhile, senior project manager Pat 379 00:29:26,330 --> 00:29:29,030 and his team have one last challenge to conquer. 380 00:29:32,590 --> 00:29:35,810 So right now we're in Ahoyt, which runs the north side of the building. 381 00:29:36,170 --> 00:29:40,110 You know, looking north from east to west, we're dead center looking over 382 00:29:40,110 --> 00:29:42,650 Central Park. It's a pretty incredible spot. 383 00:29:43,390 --> 00:29:46,950 The units that we have for this building are going to be the only units on 57th 384 00:29:46,950 --> 00:29:49,550 Street that are going to have a dead center view over Central Park. 385 00:29:50,530 --> 00:29:54,610 Pat's team must take advantage of the tower's unrivaled views of the city. 386 00:29:55,050 --> 00:29:58,970 Not an easy mission to accomplish in such enormous living spaces. 387 00:30:01,230 --> 00:30:04,650 So our units are 15 foot 6 from floor to floor. 388 00:30:04,910 --> 00:30:09,310 That creates the need for a larger piece of glass in order to maximize the views 389 00:30:09,310 --> 00:30:10,109 that we have. 390 00:30:10,110 --> 00:30:13,870 We need to find a solution to make sure that we can see them perfectly from the 391 00:30:13,870 --> 00:30:14,870 units. 392 00:30:15,070 --> 00:30:21,010 To find vast window panes worthy of the unprecedented panoramic youth, the team 393 00:30:21,010 --> 00:30:23,050 must look to the pioneers of the past. 394 00:30:31,600 --> 00:30:33,640 St. Helens in the north of England. 395 00:30:35,000 --> 00:30:36,980 Legendary for industrial innovation. 396 00:30:37,780 --> 00:30:42,340 Where physicist Susie Sheehy is heading underground in search of a development 397 00:30:42,340 --> 00:30:44,600 that shook the world of glass production. 398 00:30:48,220 --> 00:30:52,200 These tunnels are actually below a glass melting furnace. 399 00:30:52,520 --> 00:30:56,860 And all around here there would have been coal fires that would have been so 400 00:30:56,860 --> 00:30:58,540 for the workers working down here. 401 00:30:59,120 --> 00:31:03,640 What they were aiming for was to make large panes of glass for windows that 402 00:31:03,640 --> 00:31:06,300 clear and strong and free of blemishes. 403 00:31:06,700 --> 00:31:12,580 So they'd take molten glass and pour it over a metal tray where it would cool 404 00:31:12,580 --> 00:31:16,920 down. But the result was something that was imperfect. It was blemished and 405 00:31:16,920 --> 00:31:20,260 rough. So then they'd have to grind and polish it. 406 00:31:20,860 --> 00:31:25,440 Even then, the panes they made were not super big. It was only up to a couple of 407 00:31:25,440 --> 00:31:29,950 metres. So to get something even bigger and better, they'd actually have to come 408 00:31:29,950 --> 00:31:31,590 up with a totally new solution. 409 00:31:33,810 --> 00:31:38,070 But for Sir Alistair Pilkington, the answer was crystal clear. 410 00:31:39,170 --> 00:31:43,570 In the 1950s, he developed a revolutionary new process. 411 00:31:45,990 --> 00:31:52,230 So this place is the solution that Pilkington came up with. And it's 412 00:31:52,230 --> 00:31:54,870 incredible. I've just seen in front of me here this huge... 413 00:31:55,070 --> 00:31:59,910 really flat sheet of glass absolutely beautiful 414 00:31:59,910 --> 00:32:05,530 Pilkington's float glass innovation 415 00:32:05,530 --> 00:32:12,430 quite literally broke the mold it's so flat because they pour 416 00:32:12,430 --> 00:32:18,910 molten glass onto a bar of molten tin and that's so flat that it comes out in 417 00:32:18,910 --> 00:32:21,610 these enormous sheets they're just incredible 418 00:32:23,280 --> 00:32:28,320 This cutting -edge plant has modernized its machinery, but remains true to 419 00:32:28,320 --> 00:32:29,500 Pilkington's technique. 420 00:32:29,880 --> 00:32:30,960 Oh, wow. 421 00:32:31,280 --> 00:32:33,820 I can feel the heat radiating off this. 422 00:32:34,520 --> 00:32:39,840 For any glass production process, a sand -based mixture must first be melted to 423 00:32:39,840 --> 00:32:43,340 a scorching 2 ,912 degrees Fahrenheit. 424 00:32:43,700 --> 00:32:48,200 But what sets this extraordinary method apart is what happens next. 425 00:32:48,700 --> 00:32:49,700 Woo! 426 00:32:50,320 --> 00:32:51,320 Nice. 427 00:33:07,850 --> 00:33:14,710 In the 1950s, Sir Alistair Pilkington invented the float glass process, a 428 00:33:14,710 --> 00:33:18,410 revolutionary method to manipulate the size and thickness of glass. 429 00:33:19,070 --> 00:33:24,750 After a sand -based mixture is melted at nearly 3 ,000 degrees, it is fed into a 430 00:33:24,750 --> 00:33:26,350 molten tin bath chamber. 431 00:33:27,430 --> 00:33:30,530 So this is about 25 kg, so it's quite heavy. 432 00:33:30,950 --> 00:33:33,290 We just step to the side and place it into the box. 433 00:33:36,450 --> 00:33:37,449 That's amazing. 434 00:33:37,450 --> 00:33:39,030 And now I get to push it in. 435 00:33:39,250 --> 00:33:41,050 Yeah, if you just stand back, just push it gently in. 436 00:33:42,590 --> 00:33:43,590 That's it. 437 00:33:44,430 --> 00:33:46,210 Did I do? 438 00:33:46,770 --> 00:33:47,770 All right. 439 00:33:48,230 --> 00:33:50,390 Just leave it there, and you'll see it melted away now. 440 00:33:50,890 --> 00:33:55,210 Oh, wow. I can see the ripples. Yeah, yeah, that's the tin. So that's the 441 00:33:55,210 --> 00:33:57,690 bath of milk? That's the actual tin. That's what the glass is called. Wow. 442 00:33:58,650 --> 00:34:01,730 If you look at it straight up there, that line that you can see, that's the 443 00:34:01,730 --> 00:34:05,390 actual glass there. So that's the glass floating on the tin. It just looks like 444 00:34:05,390 --> 00:34:06,009 a mirror. 445 00:34:06,010 --> 00:34:07,010 Does, yeah? Yeah. 446 00:34:09,570 --> 00:34:12,850 As a liquid, molten tin sits perfectly flat. 447 00:34:14,690 --> 00:34:18,070 Glass from the furnace is slowly poured over the lake of metal. 448 00:34:18,550 --> 00:34:23,590 And being less dense than the tin, it floats atop the surface, spreading and 449 00:34:23,590 --> 00:34:25,810 cooling in a flawlessly smooth sheet. 450 00:34:27,630 --> 00:34:32,670 The glass leaves the bath with so few impurities that it's crystal clear and 451 00:34:32,670 --> 00:34:33,790 incredibly strong. 452 00:34:34,050 --> 00:34:37,210 Properties that would make for great skyscraper windows. 453 00:34:38,230 --> 00:34:41,929 So this section is where the solid glass comes out. 454 00:34:42,170 --> 00:34:46,929 And it's really beautiful and flat and clear, perfect for windows. 455 00:34:47,290 --> 00:34:51,370 But when they first started using this float method, they had glass that was 456 00:34:51,370 --> 00:34:52,469 just six meters long. 457 00:34:52,690 --> 00:34:57,010 But now... They've perfected it to the point where they can just get a 458 00:34:57,170 --> 00:35:01,870 unbroken flow of glass over this 600 -meter length. 459 00:35:02,150 --> 00:35:07,430 And this one here, it works 24 hours, 7 days a week, and hasn't switched off for 460 00:35:07,430 --> 00:35:08,730 more than 7 years. 461 00:35:09,010 --> 00:35:10,230 It's so reliable. 462 00:35:10,550 --> 00:35:11,850 It's an unbelievable method. 463 00:35:12,430 --> 00:35:19,070 The float line can run continuously for 20 years, producing around 479 million 464 00:35:19,070 --> 00:35:21,930 feet of glass, enough to wrap around the Earth. 465 00:35:22,200 --> 00:35:24,160 three and a half thousand times. 466 00:35:24,360 --> 00:35:29,000 So as it comes out here, I can't see a single imperfection in these panes. 467 00:35:29,300 --> 00:35:31,960 This method just produces perfect glass. 468 00:35:32,420 --> 00:35:35,980 And that's only possible because of this slow glass method. 469 00:35:47,780 --> 00:35:51,100 70 years after Pilkington's inspired idea. 470 00:35:52,430 --> 00:35:57,390 New York's greatest engineering minds are using float glass to provide views 471 00:35:57,390 --> 00:35:59,030 unlike any other on Earth. 472 00:36:02,690 --> 00:36:08,150 Pat Feehan is overseeing the installation of 111 supersized insulated 473 00:36:08,150 --> 00:36:12,410 units. So on the exterior facade, this is the exterior facade of the glass. 474 00:36:12,650 --> 00:36:15,670 So there's three individual pieces of float glass made up into these glazed 475 00:36:15,670 --> 00:36:19,570 units. They have two pieces of laminated glass on the exterior facade. 476 00:36:19,900 --> 00:36:24,280 And then one piece of a slightly larger, thicker glass on the interior beside 477 00:36:24,280 --> 00:36:26,040 with a 12 -millimeter argon gap. 478 00:36:26,960 --> 00:36:30,500 The technology that goes into the glass in particular allow us to make the 479 00:36:30,500 --> 00:36:33,380 panels that we can make today. And if it wasn't for the float glass, we wouldn't 480 00:36:33,380 --> 00:36:34,380 be able to make panels like this. 481 00:36:35,720 --> 00:36:40,720 The tower's massive glass panels owe their immense strength and clarity to 482 00:36:40,720 --> 00:36:41,840 float glass method. 483 00:36:42,320 --> 00:36:44,400 To the actual essence of the glass itself. 484 00:36:44,710 --> 00:36:48,430 Pretty fundamental, but the technology that's come around along it that have 485 00:36:48,430 --> 00:36:52,750 allowed us to get larger panes of glass, stronger glass, to allow us to push the 486 00:36:52,750 --> 00:36:54,070 material as far as we can go. 487 00:36:56,810 --> 00:37:01,770 Although each apartment has solid east and west sheer walls, they're completely 488 00:37:01,770 --> 00:37:03,430 open to the north and south. 489 00:37:03,730 --> 00:37:10,130 The team's task is to fill a void over 59 feet wide and nearly 16 feet high on 490 00:37:10,130 --> 00:37:13,630 each floor with huge panels of crystal clear glass. 491 00:37:13,870 --> 00:37:15,950 to minimize view -obstructing joints. 492 00:37:16,170 --> 00:37:20,610 The largest panel, which will form the centerpiece of each apartment, weighs 493 00:37:20,610 --> 00:37:23,790 over one ton, as much as a small car. 494 00:37:27,950 --> 00:37:32,390 Installing these massive window panes at extreme heights is an intense 495 00:37:32,390 --> 00:37:33,390 operation. 496 00:37:35,330 --> 00:37:40,150 And the team will have to carefully pull off a daring act of engineering. 497 00:37:57,270 --> 00:38:02,830 In New York City, engineers are preparing to install massive glass 498 00:38:02,830 --> 00:38:05,770 on a groundbreaking new residential skyscraper. 499 00:38:07,050 --> 00:38:09,630 So right now we're getting ready to install this panel, so we're going to be 500 00:38:09,630 --> 00:38:10,810 flying it out from this floor. 501 00:38:11,010 --> 00:38:13,550 The tower crane's going to come down with the hook. We're going to hook it 502 00:38:13,570 --> 00:38:16,510 and we're going to send that panel out and install until 69. 503 00:38:17,810 --> 00:38:22,170 It's not a typical install because the panel is so large, gets caught in the 504 00:38:22,170 --> 00:38:23,610 wind, it could flow around. 505 00:38:25,060 --> 00:38:27,320 Everyone has to be on their game a little bit more. 506 00:38:28,540 --> 00:38:31,680 To be doing this work, you have to be able to deal with the heights and be 507 00:38:31,680 --> 00:38:34,920 to deal with working on the slab edge, which is not an easy thing to do. 508 00:38:37,740 --> 00:38:42,760 The fearless installation team pushes extreme construction to the very edge. 509 00:38:43,860 --> 00:38:48,100 The oversized heavyweight panel is lowered five floors down. 510 00:38:48,980 --> 00:38:51,460 One wrong move could spell catastrophe. 511 00:38:52,030 --> 00:38:55,130 We're going down to level 69 where this panel's going to get installed. 512 00:38:55,650 --> 00:39:00,710 With the success of the installation hanging in the balance, the team needs 513 00:39:00,710 --> 00:39:04,690 work quickly to secure the panel into the interlocking weather seal. 514 00:39:04,930 --> 00:39:05,930 Hold that. 515 00:39:11,490 --> 00:39:16,090 So, you know, we have one panel now installed of over 6 ,500 total on the 516 00:39:16,090 --> 00:39:17,090 building. 517 00:39:18,230 --> 00:39:21,410 And selling panels one at a time, you know, it doesn't feel like you're 518 00:39:21,410 --> 00:39:25,170 anywhere, but after a while, they start to add up. We're on the 69th floor right 519 00:39:25,170 --> 00:39:27,950 now, installing panels. We're approaching the end, which is kind of 520 00:39:28,650 --> 00:39:32,810 There's a lot of amazing things about 111 West 57th Street, but I think one of 521 00:39:32,810 --> 00:39:35,390 the key things and one of the biggest selling points is the view that we have 522 00:39:35,390 --> 00:39:39,890 here. The technology that has gone into making glass has progressed so much over 523 00:39:39,890 --> 00:39:43,750 time that it allows us to make panels the size that we have here, to have them 524 00:39:43,750 --> 00:39:46,190 as clear as they are, to have the views that we have. 525 00:39:46,520 --> 00:39:49,500 You know, we have the whole entire skyline to look at. It's kind of 526 00:39:57,700 --> 00:40:02,340 For the team behind this daring project, the engineering achievement is 527 00:40:02,340 --> 00:40:03,340 immeasurable. 528 00:40:03,960 --> 00:40:06,940 Looking at a postcard 20 years from now at the skyline of Manhattan, it's going 529 00:40:06,940 --> 00:40:08,860 to be a building that I built on that. It's kind of incredible. 530 00:40:10,190 --> 00:40:12,790 Every day we look at the building, see it grow. 531 00:40:13,130 --> 00:40:18,670 It's really incredible, and we feel like very lucky to be part of the team to 532 00:40:18,670 --> 00:40:19,670 work on this. 533 00:40:20,850 --> 00:40:25,210 No matter which aspect you look at this building, it has definitely enhanced the 534 00:40:25,210 --> 00:40:30,190 New York City skyline. It's taken pieces of old New York and new New York and 535 00:40:30,190 --> 00:40:33,590 combined them together and created something that the world has never seen 536 00:40:33,590 --> 00:40:34,590 before. 537 00:40:43,340 --> 00:40:47,140 The super -slender skyscraper that has defied the impossible. 538 00:40:48,380 --> 00:40:52,600 Pushing the limits on tower construction further than ever before. 539 00:40:53,100 --> 00:40:59,020 A new landmark vanishing into the clouds, changing New York's skyline 540 00:41:00,320 --> 00:41:04,880 Standing testament to the incredible work of some of New York's greatest 541 00:41:04,880 --> 00:41:06,060 engineering minds. 542 00:41:17,970 --> 00:41:24,030 111 West 57th Street represents impossible engineering on a staggering 543 00:41:25,650 --> 00:41:30,870 Every stage of this groundbreaking enterprise poses unimaginable 544 00:41:36,030 --> 00:41:39,450 When we first started this project, I knew we were doing something special. 545 00:41:39,650 --> 00:41:44,430 This is one of the most unique superstructures that you could ever put 546 00:41:45,130 --> 00:41:50,850 But by building on the work of the pioneers of the past, overcoming huge 547 00:41:50,850 --> 00:41:54,690 challenges, and pushing the boundaries of innovation. 548 00:41:55,030 --> 00:41:58,770 I'm incredibly proud to be working on this project. It's incredible, and it's 549 00:41:58,770 --> 00:41:59,810 more than I could have asked for. 550 00:42:01,110 --> 00:42:06,290 We really saw it as an opportunity to do something that both spoke to the past, 551 00:42:06,390 --> 00:42:10,990 but also looked to the future, and to see it not just through design, but now 552 00:42:10,990 --> 00:42:11,990 almost complete. 553 00:42:12,680 --> 00:42:15,620 physically here is really an incredible experience. 554 00:42:16,400 --> 00:42:22,580 The engineers are succeeding in making the impossible possible. 555 00:42:22,630 --> 00:42:27,180 Repair and Synchronization by Easy Subtitles Synchronizer 1.0.0.0 53432

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