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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:03,030 --> 00:00:06,810 Stonehenge is one of the greatest mysteries in ancient history. 2 00:00:07,150 --> 00:00:12,010 This would have been the most amazing and ambitious project that anyone could 3 00:00:12,010 --> 00:00:13,010 imagine. 4 00:00:13,310 --> 00:00:19,310 Created 5 ,000 years ago, generations of experts have studied Stonehenge, but 5 00:00:19,310 --> 00:00:22,870 its construction and purpose still remain a mystery. 6 00:00:23,410 --> 00:00:27,350 It's just magical, isn't it? You know, just the simple thing of how did they 7 00:00:27,350 --> 00:00:28,189 build it? 8 00:00:28,190 --> 00:00:29,870 So now we're curious. 9 00:00:30,400 --> 00:00:34,920 Could we recreate this legendary masterpiece with today's technology? 10 00:00:35,440 --> 00:00:39,060 I do think this kind of project would attract a certain type of person. 11 00:00:39,460 --> 00:00:42,880 If I had a thousand people working with me, I don't think I could build 12 00:00:42,880 --> 00:00:43,880 something like that. 13 00:00:44,700 --> 00:00:45,700 Here's the plan. 14 00:00:46,160 --> 00:00:51,360 We're rounding up the best engineers, archaeologists, and logistics experts to 15 00:00:51,360 --> 00:00:54,300 help us build our own iconic monument. 16 00:00:55,440 --> 00:01:00,420 Even more colossal, awe -inspiring, and built to last. 17 00:01:00,740 --> 00:01:04,300 There's an old army expression, actually, that says amateur talk tactics 18 00:01:04,300 --> 00:01:05,600 professionals talk logistics. 19 00:01:09,760 --> 00:01:15,080 Imagine. The world's greatest wonders reimagined. 20 00:01:15,580 --> 00:01:18,780 We're wondering, how long would it take? 21 00:01:19,520 --> 00:01:20,880 How much would it cost? 22 00:01:21,860 --> 00:01:24,260 How many workers would we need? 23 00:01:24,860 --> 00:01:27,260 Could we even do it? 24 00:01:27,960 --> 00:01:30,660 If we built it today. 25 00:01:39,700 --> 00:01:45,060 Situated on Salisbury Plain in southern England, this puzzling ring of stone 26 00:01:45,060 --> 00:01:48,120 slabs has baffled researchers for centuries. 27 00:01:49,680 --> 00:01:53,700 Stonehenge just has that kind of breathtaking, 28 00:01:54,670 --> 00:01:55,670 aspect to it. 29 00:01:56,250 --> 00:01:59,150 It makes the hairs on the back of your neck stand up. 30 00:02:00,830 --> 00:02:04,290 Well, I think everybody tends to find Stonehenge fascinating both because it's 31 00:02:04,290 --> 00:02:10,550 very old and the people that far back in time could build something that's so 32 00:02:10,550 --> 00:02:11,790 incredibly complicated. 33 00:02:13,010 --> 00:02:18,750 So complicated that some theorists have credited its construction to giants, 34 00:02:19,030 --> 00:02:22,690 Merlin the Magician, and even aliens. 35 00:02:23,500 --> 00:02:27,920 Even today, how it was built and why is still under debate. 36 00:02:28,760 --> 00:02:33,920 Archaeologist Michael Parker Pearson and researcher Barney Harris have studied 37 00:02:33,920 --> 00:02:37,380 the mysteries behind Stonehenge's construction extensively. 38 00:02:38,000 --> 00:02:43,900 We see the rise in the sense of prehistoric mysteries and all sorts of 39 00:02:43,900 --> 00:02:47,220 outrageous theories about spacemen and aliens. 40 00:02:48,150 --> 00:02:52,670 constructing civilizations on Earth because humans simply weren't considered 41 00:02:52,670 --> 00:02:53,569 to it. 42 00:02:53,570 --> 00:02:58,150 There's a playfulness to it because it's just these cartoonishly large stones 43 00:02:58,150 --> 00:03:03,330 and this enormous burning question of how was this done and why was this done? 44 00:03:03,990 --> 00:03:09,830 It must have been built for the ancestors because that's what we do with 45 00:03:09,830 --> 00:03:15,650 monuments. Stone is durable and eternal to represent, in fact, to even become 46 00:03:15,650 --> 00:03:16,810 the ancestors. 47 00:03:19,630 --> 00:03:24,410 In terms of its function, some of the beauty of prehistory is just that space, 48 00:03:24,730 --> 00:03:28,770 that lack of evidence to allow creativity. 49 00:03:29,010 --> 00:03:31,210 You know, that's part of the enchantment of it. 50 00:03:31,610 --> 00:03:37,670 So just how did ancient people construct this colossal monument without access 51 00:03:37,670 --> 00:03:38,670 to modern tools? 52 00:03:39,310 --> 00:03:40,590 First things first. 53 00:03:40,890 --> 00:03:42,510 Let's start with what we know. 54 00:03:42,830 --> 00:03:46,430 The site's construction began around 3100 BCE. 55 00:03:47,530 --> 00:03:49,650 and took over a thousand years to complete. 56 00:03:49,990 --> 00:03:56,330 On average, the stones weigh about 25 tons and measure about 30 feet long. 57 00:03:56,730 --> 00:04:00,690 Evidence suggests the prehistoric ruin was built in stages. 58 00:04:01,150 --> 00:04:07,270 The first and oldest part of Stonehenge is a massive circular ditch, or 59 00:04:07,270 --> 00:04:13,190 henge. The actual hinge itself is basically just a big circular trench 60 00:04:13,190 --> 00:04:17,430 dig the soil and rock out. We know that was done using picks made from deer 61 00:04:17,430 --> 00:04:22,250 antlers and shovels made from the shoulder blades of oxen. And we know 62 00:04:22,250 --> 00:04:24,030 because they left those in the bottom of the holes. 63 00:04:25,490 --> 00:04:30,670 Within the ditch was a ring of 56 pits, or holes, dotted around the site's 64 00:04:30,670 --> 00:04:34,730 perimeter, forming a circle 905 feet across. 65 00:04:35,770 --> 00:04:38,350 The exact purpose of the holes remains a mystery. 66 00:04:39,550 --> 00:04:44,170 But some historians believe that they were initially used to support wooden 67 00:04:44,170 --> 00:04:45,170 posts. 68 00:04:46,050 --> 00:04:50,650 For several hundred years, Stonehenge remained largely untouched. 69 00:04:51,110 --> 00:04:57,670 Then, suddenly, around 2500 BC, the blue stones started to arrive. 70 00:04:58,330 --> 00:05:04,030 Nearly 80 blue stones, weighing between two to five tons each, were set up in 71 00:05:04,030 --> 00:05:05,830 two concentric half circles. 72 00:05:06,110 --> 00:05:09,630 But the Neolithic builders were far from finished. 73 00:05:10,030 --> 00:05:11,790 It's when they bring in the big ones. 74 00:05:12,010 --> 00:05:17,250 And those are what we call sarsen stones. It's a kind of cemented 75 00:05:17,650 --> 00:05:24,310 At some point, 30 massive sarsen stones, weighing up to 50 tons, were brought in 76 00:05:24,310 --> 00:05:26,950 and arranged into the famous outer circle. 77 00:05:27,480 --> 00:05:32,600 A horizontal structure known as lintels was then placed on top of the sarsen 78 00:05:32,600 --> 00:05:38,440 stones. Well, at the same time, builders also created what would become known as 79 00:05:38,440 --> 00:05:39,740 the inner circle. 80 00:05:40,220 --> 00:05:44,820 You also have what's called sarsen horseshoe, which is an arrangement of 81 00:05:44,820 --> 00:05:49,260 trilithons arranged in the center of the site, forming roughly a horseshoe. 82 00:05:49,840 --> 00:05:54,880 And then the second major sarsen construction element was the sarsen 83 00:05:56,430 --> 00:06:02,370 Which was a continuous ring of trilithons running all around the 84 00:06:02,370 --> 00:06:08,030 site. That contained 30 uprights and 30 lintels to form, we think, a perfect 85 00:06:08,030 --> 00:06:14,250 ring. So how did all of these giant stones, some weighing up to four tons, 86 00:06:14,250 --> 00:06:15,250 up at Stonehenge? 87 00:06:15,450 --> 00:06:17,370 And who brought them there? 88 00:06:17,730 --> 00:06:21,690 I think part of Stonehenge's appeal is the fact we don't really know for sure 89 00:06:21,690 --> 00:06:24,710 exactly how it was built, why it was built. 90 00:06:25,850 --> 00:06:31,610 To actually move stones that far, you've really got to have decades of 91 00:06:31,610 --> 00:06:36,770 preparation. The ropes, the timbers, it must have been a huge amount of work. 92 00:06:37,950 --> 00:06:43,210 Many modern historians and archaeologists believe that several 93 00:06:43,210 --> 00:06:48,510 of people contributed to Stonehenge, each undertaking a different phase of 94 00:06:48,510 --> 00:06:55,270 construction. New research points to early Europeans originating in Turkey, 95 00:06:55,840 --> 00:06:59,340 and reaching the UK from what is now Portugal. 96 00:07:00,260 --> 00:07:02,700 They were mostly agricultural groups. 97 00:07:03,080 --> 00:07:07,240 They farmed, they had domesticated animals, as they did in a lot of parts 98 00:07:07,240 --> 00:07:09,920 Europe and the Near East and the Middle East at that period in time. 99 00:07:11,020 --> 00:07:15,740 This is actually not much more than 240 generations ago. 100 00:07:16,140 --> 00:07:21,540 They were just like us in the way that they looked and in aspects of how they 101 00:07:21,540 --> 00:07:22,580 lived and acted. 102 00:07:23,040 --> 00:07:25,160 The construction spanned centuries. 103 00:07:25,760 --> 00:07:30,920 And we may never know what drew generations of people to continue 104 00:07:31,460 --> 00:07:36,460 How did that idea stay current and stay important to people over such a long 105 00:07:36,460 --> 00:07:38,020 period of time? That's the real question. 106 00:07:38,320 --> 00:07:39,600 That's difficult to answer. 107 00:07:41,760 --> 00:07:44,880 Probably originally it was just done by passing the knowledge on from one 108 00:07:44,880 --> 00:07:48,100 generation to the next, just in an oral tradition, to explain what they were 109 00:07:48,100 --> 00:07:49,100 actually doing. 110 00:07:49,880 --> 00:07:53,360 So, what would it take to build a modern Stonehenge? 111 00:07:54,830 --> 00:08:00,570 a structure that would last more than 5 ,000 years and continue to inspire awe 112 00:08:00,570 --> 00:08:01,570 for generations. 113 00:08:03,970 --> 00:08:09,010 Could we organize and execute its construction as well as the ancients? 114 00:08:10,410 --> 00:08:12,790 Some say no way. 115 00:08:13,230 --> 00:08:18,910 There comes a point where that very special kind of society just won't work 116 00:08:18,910 --> 00:08:21,510 because the nature of society changed. 117 00:08:23,080 --> 00:08:26,640 But others think a modern Stonehenge is possible. 118 00:08:27,040 --> 00:08:31,540 It's going to take somebody who has a real special interest in the science and 119 00:08:31,540 --> 00:08:33,200 the history of that project. 120 00:08:33,700 --> 00:08:36,460 There's a desire to build something to impress everybody else. 121 00:08:36,700 --> 00:08:39,780 So if you can say I was the one who actually was responsible for that thing 122 00:08:39,780 --> 00:08:43,220 being built, you're going to be a pretty high status person in that society. 123 00:08:45,140 --> 00:08:49,460 Could we assemble a workforce willing to take on this epic challenge? 124 00:08:50,420 --> 00:08:51,840 It's a massive undertaking. 125 00:08:53,240 --> 00:08:59,160 We need some rock -solid reasons to do Stonehenge -style heavy lifting. 126 00:09:00,200 --> 00:09:02,660 If we built it today. 127 00:09:05,860 --> 00:09:11,180 We're imagining how we'd build a new Stonehenge that would leave the famous 128 00:09:11,180 --> 00:09:12,200 in the dust. 129 00:09:12,460 --> 00:09:17,620 But before we work out how we'd build it, we need to figure out why we'd build 130 00:09:17,620 --> 00:09:20,180 it. Yet, that very question. 131 00:09:20,830 --> 00:09:23,410 has stumped archaeologists for centuries. 132 00:09:24,150 --> 00:09:30,990 Stonehenge has a surprising grip on people throughout the world, and even as 133 00:09:30,990 --> 00:09:35,750 archaeologist who studies it, I find that one of the greatest mysteries, 134 00:09:35,750 --> 00:09:41,470 it has just gripped the imagination like no other prehistoric site. 135 00:09:42,030 --> 00:09:47,430 Over the years, archaeologists have attempted to explain why Stonehenge was 136 00:09:47,430 --> 00:09:48,430 built. 137 00:09:48,630 --> 00:09:54,680 One theory... suggests that Stonehenge is a giant astronomical calendar. 138 00:09:55,100 --> 00:09:58,680 For the people that lived there during the time that Stonehenge was 139 00:09:59,020 --> 00:10:03,260 it would have been probably fairly important as a timekeeping mechanism. 140 00:10:05,240 --> 00:10:10,640 People used to mark where the sun rose and set, and because it was critical in 141 00:10:10,640 --> 00:10:14,780 the wintertime to ensure that the summer was going to come back again, they 142 00:10:14,780 --> 00:10:16,440 would watch the rising point of the sun. 143 00:10:16,720 --> 00:10:20,940 As you got towards the solstice around December 21st, typically, the sun would 144 00:10:20,940 --> 00:10:26,060 slow down, slow down, slow down, stop, rise to the same point for a couple of 145 00:10:26,060 --> 00:10:29,560 days, and then start moving back towards the north, ensuring it was actually 146 00:10:29,560 --> 00:10:30,560 going to come back. 147 00:10:31,000 --> 00:10:34,880 You can use it with reasonable certainty to predict some types of eclipses, 148 00:10:34,880 --> 00:10:36,420 especially lunar eclipses. 149 00:10:37,260 --> 00:10:42,560 Others have speculated Stonehenge was built as a gathering place to celebrate 150 00:10:42,560 --> 00:10:43,960 peace and unity. 151 00:10:44,540 --> 00:10:50,660 It's about the spirit of the place, which has something unique about it that 152 00:10:50,660 --> 00:10:55,300 prehistoric people recognized, that that was what drew them to this as being 153 00:10:55,300 --> 00:11:01,860 somewhere special, because it had this remarkable alignment of the heavens and 154 00:11:01,860 --> 00:11:05,580 the earth. If you like, they might have seen this as some kind of cosmic harmony 155 00:11:05,580 --> 00:11:07,660 in this very special place. 156 00:11:08,380 --> 00:11:13,660 What Stonehenge was, and is to this day, is a crowd magnet. 157 00:11:14,250 --> 00:11:18,190 a place built by people for people to come together. 158 00:11:18,950 --> 00:11:23,950 This wasn't just a local monument for local people, but something that was 159 00:11:23,950 --> 00:11:29,630 attracting huge numbers from many different parts of the island. You meet 160 00:11:29,630 --> 00:11:33,230 marriage partners, you form alliances, you resolve conflicts. 161 00:11:33,970 --> 00:11:39,250 Even today, one of the most exciting things about Stonehenge is the mystery 162 00:11:39,250 --> 00:11:40,250 surrounding it. 163 00:11:40,470 --> 00:11:46,250 However... A discovery made in the early 20th century led experts to their most 164 00:11:46,250 --> 00:11:48,590 conclusive explanation yet. 165 00:11:49,070 --> 00:11:53,030 There are definitely cremated human remains that were found in the bottoms 166 00:11:53,030 --> 00:11:57,110 the post holes, dating from some of the earlier periods of time. 167 00:11:58,950 --> 00:12:03,910 Excavations revealed the cremated remains of up to 58 people, providing 168 00:12:03,910 --> 00:12:07,910 that this might actually be an ancient burial site. 169 00:12:11,420 --> 00:12:15,160 and maybe in a symbolic place where people would sort of come together 170 00:12:15,160 --> 00:12:18,120 it was the one structure that they had all sort of contributed towards 171 00:12:18,280 --> 00:12:21,040 much in the same way that even today we do that sort of thing. 172 00:12:21,720 --> 00:12:26,820 Given the connection with death at Stonehenge, it was tempting to think 173 00:12:26,820 --> 00:12:31,600 of the motivating factors for people was the memory of an individual or perhaps 174 00:12:31,600 --> 00:12:36,860 what that individual came to symbolise in a wider sense. 175 00:12:37,880 --> 00:12:39,820 Further analysis of the remains. 176 00:12:40,270 --> 00:12:42,950 exposed an astounding piece of evidence. 177 00:12:43,470 --> 00:12:49,070 The majority are women. It's very possible that we are seeing a complete 178 00:12:49,070 --> 00:12:52,490 in the gender politics of that society. 179 00:12:52,910 --> 00:12:58,310 So we have the very interesting possibility that Stonehenge was actually 180 00:12:58,310 --> 00:13:00,710 masterminded by women. 181 00:13:01,090 --> 00:13:06,390 Clearly, Stonehenge may have served several purposes, and no theory stands 182 00:13:06,390 --> 00:13:08,150 as more valid than the other. 183 00:13:09,840 --> 00:13:16,300 Whether its purpose was to keep track of time, celebrate community, or represent 184 00:13:16,300 --> 00:13:17,440 female empowerment. 185 00:13:18,900 --> 00:13:23,620 Put together, that's more than enough reason to build a new Stonehenge. 186 00:13:24,040 --> 00:13:25,900 So, let's do it. 187 00:13:27,060 --> 00:13:32,680 And since we want to do this right, we'll need a sacred space and use 188 00:13:32,680 --> 00:13:34,160 designs and methods. 189 00:13:35,230 --> 00:13:41,070 will also match the human strength required to carry massive stones 190 00:13:41,070 --> 00:13:47,690 miles. And that mission will guide every decision we make on our modern -day 191 00:13:47,690 --> 00:13:53,230 Stonehenge. But before we can imagine recreating Stonehenge, we need to decide 192 00:13:53,230 --> 00:13:54,890 where we build it. 193 00:13:56,730 --> 00:14:01,710 If Stonehenge is a calendar most famously known for its alignment with 194 00:14:01,710 --> 00:14:06,620 winter and summer solstice, If our Stonehenge is going to do the same 195 00:14:06,620 --> 00:14:13,260 timekeeping job, it needs to be built at 51 .789 degrees north. 196 00:14:15,340 --> 00:14:19,580 If you go east of England, that takes you sort of through the Netherlands, 197 00:14:19,720 --> 00:14:24,820 Germany, Poland, through Russia, just north of Mongolia, the very extreme 198 00:14:24,820 --> 00:14:28,400 northern part of China, and a little bit down towards Vladivostok in Russia. 199 00:14:29,260 --> 00:14:30,780 So what are our options? 200 00:14:31,530 --> 00:14:33,330 You could build one in the southern hemisphere. 201 00:14:34,010 --> 00:14:37,830 If you go to the same latitude south of the equator, the only place where 202 00:14:37,830 --> 00:14:40,850 there's actually any land is the very southern part of Patagonia. 203 00:14:41,150 --> 00:14:44,270 Chile, southern Chile, or southern Argentina. 204 00:14:45,530 --> 00:14:48,630 There's another place in the northern hemisphere that could work. 205 00:14:50,410 --> 00:14:56,670 It's about 60 miles north of Calgary, Alberta, in the heart of what's called 206 00:14:56,670 --> 00:14:57,670 Badlands. 207 00:14:58,970 --> 00:14:59,970 It's a remote... 208 00:15:00,490 --> 00:15:06,450 Dramatic backdrop for a modern -day Stonehenge. From the architecture, we're 209 00:15:06,450 --> 00:15:10,790 starting to get the idea that this is perhaps an exclusive space, symbolically 210 00:15:10,790 --> 00:15:12,950 and physically separated from the rest of the landscape. 211 00:15:14,650 --> 00:15:20,930 The Badlands are on the exact latitude of Stonehenge and perfect for our modern 212 00:15:20,930 --> 00:15:22,790 -day eternal stone monument. 213 00:15:23,270 --> 00:15:28,690 We're sold, but we're not ready to get rolling just yet. 214 00:15:29,480 --> 00:15:31,600 We've still got to find our workers. 215 00:15:32,040 --> 00:15:35,960 I do think this kind of project would attract a certain type of person. 216 00:15:36,200 --> 00:15:40,780 And figure out how they moved all that rock without alien intervention. 217 00:15:41,340 --> 00:15:45,200 It's just magical, isn't it? You know, just the simple thing of how did they 218 00:15:45,200 --> 00:15:50,240 build it? And what materials would we need to recreate the stone circle? 219 00:15:50,500 --> 00:15:55,820 We're talking really accurate construction techniques here. It's 220 00:15:55,820 --> 00:15:57,040 us today to imagine. 221 00:15:57,850 --> 00:15:59,950 that level of precision being achieved. 222 00:16:00,430 --> 00:16:04,570 Luckily, we know a few experts that can lead us in the right direction. 223 00:16:05,750 --> 00:16:08,430 If we built it today. 224 00:16:11,610 --> 00:16:15,150 We're imagining how we'd build Stonehenge today. 225 00:16:16,470 --> 00:16:22,150 We know we'd want to replicate the design, and we'd like to build it north 226 00:16:22,150 --> 00:16:25,330 Calgary, Alberta's dark badlands. 227 00:16:26,140 --> 00:16:28,060 So that leads to our next question. 228 00:16:28,260 --> 00:16:32,460 What materials would we use for our modern -day Stonehenge? 229 00:16:33,380 --> 00:16:37,560 Would we extract sandstone and spot a dolerite from a quarry? 230 00:16:38,040 --> 00:16:41,200 Or would we use a different kind of material? 231 00:16:41,680 --> 00:16:46,840 Because for astronomy purposes, it could really be built out of anything. 232 00:16:49,900 --> 00:16:53,880 The main thing is the actual positioning of the things and having them at the 233 00:16:53,880 --> 00:16:57,080 right latitude. So, yes, you could make it out of anything, including paper 234 00:16:57,080 --> 00:16:58,080 mache. 235 00:16:59,180 --> 00:17:03,720 Before we decide, we want to know where the stones that make up Stonehenge came 236 00:17:03,720 --> 00:17:04,720 from. 237 00:17:04,940 --> 00:17:09,180 For many years, archaeologists believed that the Tharsen stones were brought 238 00:17:09,180 --> 00:17:11,000 from a region 20 miles away. 239 00:17:13,400 --> 00:17:17,940 Yet, recent research has pinpointed the specific area. 240 00:17:19,109 --> 00:17:24,530 We've just found out that they come from 15 miles to the north. 241 00:17:27,710 --> 00:17:34,510 They just wanted stone of a suitable size and shape, and the 242 00:17:34,510 --> 00:17:36,990 nearest they could find it was where they got it from. 243 00:17:37,310 --> 00:17:42,670 Unlike the sarsen stones, the bluestones presented their own mystery, because 244 00:17:42,670 --> 00:17:45,930 there isn't any naturally occurring bluestone nearby. 245 00:17:47,390 --> 00:17:53,310 However... Geological studies suggest a potential source far to the west of 246 00:17:53,310 --> 00:17:55,670 Stonehenge, in Wales. 247 00:17:56,070 --> 00:18:00,950 What we've discovered is actually where the vast majority of the Welsh stones 248 00:18:00,950 --> 00:18:02,770 come from is the Preseli Hill. 249 00:18:07,350 --> 00:18:13,690 Amazingly, these quarries in Wales are nearly 175 miles away from 250 00:18:13,690 --> 00:18:16,130 Stonehenge. Even more amazingly... 251 00:18:16,540 --> 00:18:21,640 Recent excavations suggest that some of the blue stones may have initially been 252 00:18:21,640 --> 00:18:26,260 part of a stone circle at Wan Mon in the Purcelli Hills. 253 00:18:26,780 --> 00:18:33,200 It was here that we were able to excavate two of the quarries supplying 254 00:18:33,200 --> 00:18:39,420 stones and we found the remains of a dismantled stone circle. 255 00:18:39,900 --> 00:18:45,500 A stone circle that we have now dated and which we know was put up 256 00:18:47,379 --> 00:18:48,379 Before Stonehenge. 257 00:18:49,960 --> 00:18:51,460 So now we're curious. 258 00:18:51,880 --> 00:18:57,100 Is there an easier way to build a modern -day Stonehenge that doesn't involve 259 00:18:57,100 --> 00:18:58,880 dragging all that stone? 260 00:19:00,020 --> 00:19:04,600 A modern version of Stonehenge, although making it out of rock would be quite 261 00:19:04,600 --> 00:19:08,000 impressive, I suspect if anybody actually did that, they would just use 262 00:19:08,000 --> 00:19:11,680 concrete. Because we're really good at working with concrete. You can just make 263 00:19:11,680 --> 00:19:13,000 a form to whatever shape you want. 264 00:19:15,070 --> 00:19:16,170 Concrete it is. 265 00:19:16,490 --> 00:19:21,750 We'd model Stonehenge in a computer and use giant molds to shape the concrete 266 00:19:21,750 --> 00:19:23,570 for each individual stone. 267 00:19:25,290 --> 00:19:30,230 3D printed concrete is also an option, the latest technique that's 268 00:19:30,230 --> 00:19:32,470 revolutionizing construction these days. 269 00:19:33,050 --> 00:19:38,730 But we still have to figure out how and who is going to build this monument. 270 00:19:38,830 --> 00:19:42,530 This brings us back to what Stonehenge might have been used for. 271 00:19:42,960 --> 00:19:47,420 Some archaeologists suggest that Stonehenge was a gathering place. 272 00:19:47,820 --> 00:19:54,200 So, what if we turned our Stonehenge 2 .0 into an outdoor concert venue? 273 00:19:54,420 --> 00:19:56,860 How would our materials hold up? 274 00:19:57,120 --> 00:20:02,340 If we think of any ritual that we get involved in, a wedding or a funeral or a 275 00:20:02,340 --> 00:20:05,180 christening, whatever it might be, it involves sound. 276 00:20:05,960 --> 00:20:10,700 So understanding what the sound was like in the past and how the stones might 277 00:20:10,700 --> 00:20:14,480 have affected that sound is really important to understand the use of the 278 00:20:15,980 --> 00:20:21,020 Setting up an acoustics test on Salisbury Plain isn't in the cards. 279 00:20:21,540 --> 00:20:27,840 So, acoustics engineer Trevor Cox created a digital Stonehenge replica. 280 00:20:28,620 --> 00:20:32,120 If you were to go and measure Stonehenge today, you'd get a very different 281 00:20:32,120 --> 00:20:36,200 acoustic response because so many of the stones are missing or on the floor. 282 00:20:37,320 --> 00:20:41,720 I draw on archaeology, so I talked to, in this case, Historic England, who 283 00:20:41,720 --> 00:20:45,600 actually had a computer model where they had all the stones in their original 284 00:20:45,600 --> 00:20:46,600 configurations. 285 00:20:47,780 --> 00:20:53,720 Next, Trevor brought those computer models to life with a 3D printer and 286 00:20:53,720 --> 00:20:55,720 them out in a soundproof chamber. 287 00:20:59,560 --> 00:21:04,240 It's vital that the stones are placed at the right size, right shape, and placed 288 00:21:04,240 --> 00:21:08,700 in exactly the right place, because we're working at 1 to 12 scale, so 289 00:21:08,700 --> 00:21:12,300 everything's shrunk by 12, so we've got to get it into millimetre accuracy. 290 00:21:14,800 --> 00:21:18,820 So this test chamber has absorbent walls, and that means any sound that 291 00:21:18,820 --> 00:21:22,920 the stone circle disappears and gets absorbed by the walls. And that's like 292 00:21:22,920 --> 00:21:23,920 real Stonehenge. 293 00:21:27,240 --> 00:21:30,140 And the results were truly extraordinary. 294 00:21:34,060 --> 00:21:37,680 I think the first surprise in what you find in Stonehenge is it's got 295 00:21:37,680 --> 00:21:38,680 reverberation. 296 00:21:41,640 --> 00:21:45,940 The sound does linger a little while before dying away. The reverberation 297 00:21:46,000 --> 00:21:48,560 which is what we measure, is about 0 .6, 0 .7 seconds. 298 00:21:50,460 --> 00:21:52,880 Remarkably, that reverberation time... 299 00:21:53,160 --> 00:21:57,060 is about the same as many of the world's finest concert halls. 300 00:21:57,400 --> 00:22:02,280 It's half as good as the gold standard, New York's famed Carnegie Hall. 301 00:22:02,540 --> 00:22:06,880 So the acoustic supports the fact that this is a site where ceremonies could 302 00:22:06,880 --> 00:22:07,880 take place. 303 00:22:08,430 --> 00:22:12,210 What you learn from the acoustic study is it tells you maybe a bit about the 304 00:22:12,210 --> 00:22:13,009 of the space. 305 00:22:13,010 --> 00:22:16,970 The fact that speech communication is easier within the circle, the fact that 306 00:22:16,970 --> 00:22:20,970 music sounds better within the circle, implies that anyone who was involved in 307 00:22:20,970 --> 00:22:23,990 the ceremony who was within that circle was getting a pretty sound. 308 00:22:25,750 --> 00:22:31,190 And Trevor says 3D printing in concrete is a perfect way to construct a great 309 00:22:31,190 --> 00:22:32,850 -sounding outdoor theater. 310 00:22:35,130 --> 00:22:37,070 He's already done it in miniature. 311 00:22:38,700 --> 00:22:42,600 If we actually print hollows, you then have to backfill them with concrete, 312 00:22:42,720 --> 00:22:46,920 because from the acoustic perspective, we're trying to mimic stone here, so we 313 00:22:46,920 --> 00:22:51,640 want it to be heavy and impervious, so we actually fill the back of them up 314 00:22:51,640 --> 00:22:52,640 concrete. 315 00:22:53,360 --> 00:22:59,020 If Stonehenge is really an old amplifier, it's centuries ahead of its 316 00:22:59,780 --> 00:23:03,480 People care about sound volume when they need to communicate. 317 00:23:04,160 --> 00:23:10,030 And, as in any megalogistical project, Communication is everything. 318 00:23:10,490 --> 00:23:15,570 So now we're ready to build it in sight and sound. 319 00:23:16,170 --> 00:23:21,890 But we still need to figure out how to get 3 ,000 tons of concrete to the 320 00:23:21,890 --> 00:23:22,950 Alberta Badlands. 321 00:23:23,370 --> 00:23:29,230 How do you move stones? Even if you've got wooden sledges and thousands of 322 00:23:29,230 --> 00:23:32,090 willing helpers, it's a massive undertaking. 323 00:23:32,730 --> 00:23:36,950 And to somehow raise it to the sky in a perfect circle. 324 00:23:37,450 --> 00:23:42,230 This would have been the most amazing and ambitious project that anyone could 325 00:23:42,230 --> 00:23:45,570 imagine. Can our team conquer the seemingly impossible? 326 00:23:46,430 --> 00:23:48,910 If we build it today. 327 00:23:51,510 --> 00:23:55,710 We're exploring the secrets behind the world's greatest prehistoric monument, 328 00:23:56,030 --> 00:23:59,250 Stonehenge, to find out how we'd build it today. 329 00:23:59,850 --> 00:24:04,590 Of course, there's no denying the original stands as an enduring testament 330 00:24:04,590 --> 00:24:09,690 the engineering skills of the Neolithic people who created it nearly 5 ,000 331 00:24:09,690 --> 00:24:10,649 years ago. 332 00:24:10,650 --> 00:24:16,490 But, as it turns out, we're far from being the first to take on this 333 00:24:16,890 --> 00:24:21,290 There have been people who have replicated Stonehenge from various 334 00:24:21,470 --> 00:24:25,190 There's actually a refrigerator henge where there's sort of a replica made of 335 00:24:25,190 --> 00:24:28,170 old dead refrigerators. There's ones made out of old junk cars. 336 00:24:29,530 --> 00:24:35,570 Nigel Allen constructed his backyard stone circle in Nova Scotia, Canada. 337 00:24:36,990 --> 00:24:42,250 This location was just in the field and it was a perfectly flat circular space 338 00:24:42,250 --> 00:24:47,690 in the midst of rolling terrain going down to the river. But this was a flat 339 00:24:47,690 --> 00:24:53,550 dime begging to have a circle stone put around its perimeter. 340 00:24:55,590 --> 00:25:01,620 With a local quarry not far away, He struck a deal to buy some big stones and 341 00:25:01,620 --> 00:25:02,860 broke ground. 342 00:25:03,320 --> 00:25:05,020 So I said, I've got an idea. 343 00:25:05,360 --> 00:25:11,620 So I marked a circle off, a radius with a rope and done the circle, figured out 344 00:25:11,620 --> 00:25:16,000 where I wanted to put the stones, dug holes for the stones, had them load them 345 00:25:16,000 --> 00:25:20,580 in one of their giant dump trucks, and they would spin one at a time, dump it 346 00:25:20,580 --> 00:25:25,820 directly in front of the hole, and I'd have one of the larger excavators come, 347 00:25:25,980 --> 00:25:28,840 and he would... Just grab the end of it and tip it up. 348 00:25:29,140 --> 00:25:34,620 Nigel's stones weigh between 6 and 12 tons, half the size of the towering 349 00:25:34,620 --> 00:25:36,400 monsters at Stonehenge. 350 00:25:36,640 --> 00:25:43,140 And even they took a 15 -ton crane and a massive excavator to do the job, 351 00:25:43,320 --> 00:25:47,220 machinery the folks who built Stonehenge didn't have. 352 00:25:47,600 --> 00:25:51,000 The texture of the rock makes it look ancient. 353 00:25:51,200 --> 00:25:55,880 The way it's rippled and weathered makes it look like it's been here thousands 354 00:25:55,880 --> 00:25:56,880 of years. 355 00:25:57,070 --> 00:26:01,870 Two decades after building it, Nigel Stonehenge has given locals in his quiet 356 00:26:01,870 --> 00:26:03,770 community something to talk about. 357 00:26:04,150 --> 00:26:08,750 There was a little reaction when the stones went up so quickly. People were 358 00:26:08,750 --> 00:26:11,790 used to things changing out in the middle of nowhere, so they were a little 359 00:26:11,790 --> 00:26:15,610 apprehensive, and it brought lots of different types of people in. 360 00:26:16,350 --> 00:26:20,430 And it's given him an appreciation for the skills of the ancient builders. 361 00:26:21,360 --> 00:26:26,460 Having done this and having come in close contact with these huge objects, 362 00:26:26,460 --> 00:26:31,700 quite convinced that the people who have come before were more resourceful, 363 00:26:31,700 --> 00:26:35,140 stronger, smarter, and had a better idea how to do things. 364 00:26:36,120 --> 00:26:40,620 5 ,000 years ago, the ancient people moved all that rock. 365 00:26:41,360 --> 00:26:47,060 But we still don't know how it got from point A to point B without modern 366 00:26:47,060 --> 00:26:48,060 equipment. 367 00:26:49,230 --> 00:26:54,510 Historians used to think Stonehenge's builders engineered some kind of log 368 00:26:54,510 --> 00:26:55,510 rolling system. 369 00:26:57,090 --> 00:27:02,810 So this notion has been persistently explored by archaeologists, testing 370 00:27:02,810 --> 00:27:04,790 these rollers do really work the way they're proposed. 371 00:27:05,170 --> 00:27:09,110 But when you look at the evidence, what you find is that this idea doesn't 372 00:27:09,110 --> 00:27:10,270 really hold water. 373 00:27:10,730 --> 00:27:15,330 From a technical perspective, it's difficult, because when you have 374 00:27:15,330 --> 00:27:20,440 rollers... You look on the ground around us, the ground is uneven, there's 375 00:27:20,440 --> 00:27:21,440 bumps, there's lumps. 376 00:27:21,720 --> 00:27:25,260 This is going to set these rollers all different directions. They're going to 377 00:27:25,260 --> 00:27:27,800 jamming into each other, moving across each other. 378 00:27:28,000 --> 00:27:31,160 Any kind of hill, it's difficult to negotiate it. 379 00:27:31,400 --> 00:27:37,560 So really, the rollers' idea should be confined, I think, to the dustbin of 380 00:27:37,560 --> 00:27:38,560 history. 381 00:27:39,200 --> 00:27:41,780 So if we don't use log rollers... 382 00:27:42,280 --> 00:27:45,700 How are we going to move 3 ,000 tonnes of concrete? 383 00:27:46,340 --> 00:27:51,700 A much more viable method, and certainly one that we see represented as well 384 00:27:51,700 --> 00:27:58,060 ethnographically, is the idea that stones were placed on sledges and then, 385 00:27:58,060 --> 00:28:02,100 necessary, some kind of trackway was prepared for these sledges. Bits of 386 00:28:02,120 --> 00:28:07,020 bits of brush, bits of anything really to just keep the sledge from biting into 387 00:28:07,020 --> 00:28:10,200 the ground and just pulled along in that way. 388 00:28:10,920 --> 00:28:15,900 To put the debate to bed once and for all, researcher Barney Harris and his 389 00:28:15,900 --> 00:28:21,220 colleagues from the University College London tested alternative ways of moving 390 00:28:21,220 --> 00:28:23,660 large stones without rollers. 391 00:28:25,120 --> 00:28:31,000 And we explored two things. One was the particular form of sledge that we see 392 00:28:31,000 --> 00:28:33,080 used in ethnographic accounts. 393 00:28:34,100 --> 00:28:37,700 And then the second thing we wanted to investigate was the kind of tracking 394 00:28:37,700 --> 00:28:39,620 was needed to move this sledge. 395 00:28:40,220 --> 00:28:43,020 And we were interested in the idea of a timber slipway. 396 00:28:46,180 --> 00:28:52,820 We started off with 30 or 40 students pulling this sledge with the stone 397 00:28:52,820 --> 00:28:55,260 strapped to it, and that went well. 398 00:28:55,520 --> 00:28:59,720 And then towards the end, they managed to sort of fine -tune it so there was 399 00:28:59,720 --> 00:29:03,820 about eight students managing to pull this sledge with the stone on. 400 00:29:07,690 --> 00:29:12,430 The sledge simply slides across the top of it, and this is a much more stable 401 00:29:12,430 --> 00:29:16,310 arrangement than log rollers, but does still help reduce the friction. 402 00:29:16,630 --> 00:29:18,030 The sledge method it is. 403 00:29:18,430 --> 00:29:24,870 Now we can cross location, materials, and equipment off our to -do list, but 404 00:29:24,870 --> 00:29:26,890 biggest challenge may lie ahead. 405 00:29:27,230 --> 00:29:29,890 How many people will we need to hire? 406 00:29:30,350 --> 00:29:34,670 Well, I think you would have a hard time finding hundreds or thousands of... 407 00:29:34,810 --> 00:29:39,630 people, you would need to move a 20 -ton rock day after day after day. 408 00:29:39,990 --> 00:29:44,070 How many people out there are going to have the stamina and the strength to 409 00:29:44,070 --> 00:29:45,490 actually be able to do that? 410 00:29:46,050 --> 00:29:49,850 I suspect it may be a combination where some people were actually paid and other 411 00:29:49,850 --> 00:29:51,450 people just volunteered. 412 00:29:52,410 --> 00:29:58,190 My guess is that you actually have separate, probably geographically 413 00:29:58,190 --> 00:30:02,490 teams who are responsible for one part of the circle. 414 00:30:03,080 --> 00:30:06,680 and that collectively they do this together. 415 00:30:08,420 --> 00:30:14,300 We'll need an army and the right general to lead it. Luckily, we have one of the 416 00:30:14,300 --> 00:30:16,040 world's best in mind. 417 00:30:16,400 --> 00:30:19,100 If we built it today. 418 00:30:21,760 --> 00:30:26,000 We're imagining how we'd build a modern -day Stonehenge. 419 00:30:26,860 --> 00:30:27,860 So far. 420 00:30:28,160 --> 00:30:32,680 we figured out that we'd want to build it north of Calgary, in Alberta's stark 421 00:30:32,680 --> 00:30:33,680 Badlands. 422 00:30:34,620 --> 00:30:41,420 We'd need to 3D print molds for 157 stones made of concrete, weighing 423 00:30:41,420 --> 00:30:43,420 over 3 ,000 tons. 424 00:30:44,080 --> 00:30:49,900 And to move all that heavy rock, we'll employ a sledge system that reduces 425 00:30:49,900 --> 00:30:54,840 friction on the stone, allowing it to move easier and faster. 426 00:30:56,150 --> 00:31:01,290 Experts estimate that it took nearly 10 million combined hours of labor to build 427 00:31:01,290 --> 00:31:05,710 the original Stonehenge. And that was over 5 ,000 years. 428 00:31:06,650 --> 00:31:11,850 Today, thanks to technology, we're hoping to cut that time down 429 00:31:12,390 --> 00:31:14,510 Which leads us to our next challenge. 430 00:31:16,170 --> 00:31:18,210 How many workers would we need? 431 00:31:18,430 --> 00:31:20,590 And where are we going to find them? 432 00:31:22,890 --> 00:31:28,130 The engineering of the project is the easy part. No plumbing, no heat, no 433 00:31:28,130 --> 00:31:30,290 electrics, no building inspectors. 434 00:31:31,330 --> 00:31:38,050 With 157 stones, let's say 25 workers per stone, for a total of 3 435 00:31:38,050 --> 00:31:43,030 ,925 hands, and round up to 4 ,000. 436 00:31:43,250 --> 00:31:50,170 Multiply by 5 for complex jobs like our modern Stonehenge, that's 20 ,000 people 437 00:31:50,170 --> 00:31:51,170 in total. 438 00:31:51,230 --> 00:31:56,630 Not impossible, but how do you keep them around long enough to get the job done? 439 00:31:57,150 --> 00:32:00,330 If you're out on an operation, you're going to need probably three to four 440 00:32:00,330 --> 00:32:02,930 supporters for every one operator on the front line. 441 00:32:03,290 --> 00:32:07,610 Caleb McDonald is a logistics manager with the Canadian Armed Forces. 442 00:32:08,070 --> 00:32:11,250 He plans massive operations for a living. 443 00:32:11,820 --> 00:32:15,120 What we'd usually do is send in a sort of a skeleton crew on the front end, 444 00:32:15,140 --> 00:32:18,740 which might be labor heavy, and they have to sort of establish the groundwork 445 00:32:18,740 --> 00:32:22,020 for the rest of the technicians and the soldiers to come in on the back end. 446 00:32:22,220 --> 00:32:27,120 And so what you'd see is laborers and a few electricians, cooks, build out the 447 00:32:27,120 --> 00:32:30,500 accommodations area, set up power generation and power distribution. 448 00:32:30,980 --> 00:32:34,280 So when the actual workforce arrives, they have somewhere to live, they have 449 00:32:34,280 --> 00:32:37,520 something to eat, they have water to drink, and they can go through all of 450 00:32:37,520 --> 00:32:39,780 functions they need to do in order to get the work done. 451 00:32:40,250 --> 00:32:43,010 What kind of supplies would our mobile workforce need? 452 00:32:43,490 --> 00:32:47,370 From a caloric perspective, we start with 3 ,000 or 4 ,000 for manual labor. 453 00:32:47,830 --> 00:32:52,370 That's probably 150 to 200 loaves of bread per day. And you do the same thing 454 00:32:52,370 --> 00:32:56,930 for fresh fruit. And you do the same thing for meat and all those other 455 00:32:56,930 --> 00:32:59,850 commodities that you need soldiers to be healthy and productive. 456 00:33:00,830 --> 00:33:05,010 Water being probably the most critical of all the sort of commodities that we 457 00:33:05,010 --> 00:33:06,350 use to keep a camp running. 458 00:33:07,160 --> 00:33:12,260 Shelter, food and water for thousands of people for a thousand years. 459 00:33:12,800 --> 00:33:19,540 We're on our way to assembling an epic workforce backed by a top notch 460 00:33:19,540 --> 00:33:20,540 team. 461 00:33:20,920 --> 00:33:27,300 The challenges are simply motivating that number of people to stay on task 462 00:33:27,300 --> 00:33:28,300 so long. 463 00:33:28,360 --> 00:33:32,160 And just like today, the pitch needs to pack a punch. 464 00:33:33,050 --> 00:33:37,270 Recruiting is its own science, and part of it is around selling what the 465 00:33:37,270 --> 00:33:38,270 adventure is. 466 00:33:38,430 --> 00:33:41,570 Because if we just said, yeah, your job is going to be to dig holes for eight 467 00:33:41,570 --> 00:33:45,110 hours a day, come on out, we're hiring, then we're not going to get anybody 468 00:33:45,110 --> 00:33:46,110 coming in. 469 00:33:46,210 --> 00:33:51,490 Social media expert Anita Kirkbride thinks finding people would be easy. 470 00:33:52,430 --> 00:33:56,850 Organizing Stonehenge 2 .0 would be the Internet event of the century. 471 00:33:57,610 --> 00:33:59,630 Well, with the click of a button on... 472 00:33:59,880 --> 00:34:04,560 pretty much every social network right now, you could potentially connect with 473 00:34:04,560 --> 00:34:09,420 billions of people. To get people to want to be a part of a big project like 474 00:34:09,420 --> 00:34:11,159 this, it's... 475 00:34:11,500 --> 00:34:13,739 Showing them how they can be part of a community. 476 00:34:14,020 --> 00:34:19,719 The days of gathering a workforce through unions, churches, and clubs are 477 00:34:20,020 --> 00:34:24,940 Anita thinks the time has never been better to raise a social media -driven 478 00:34:24,940 --> 00:34:29,480 force. This kind of project would attract a certain type of person, 479 00:34:29,480 --> 00:34:34,739 wants to see how things were done, the people who are curious about how did 480 00:34:34,739 --> 00:34:38,179 people actually move these 20 -ton rocks. 481 00:34:38,840 --> 00:34:43,420 And for some people, they won't believe that people actually were able to do 482 00:34:43,420 --> 00:34:45,179 that until they participate in it. 483 00:34:46,380 --> 00:34:50,360 I could see the construction of something like Stonehenge, the movement 484 00:34:50,360 --> 00:34:55,239 stones taking place on an annual basis, with people coming together each year to 485 00:34:55,239 --> 00:34:59,380 move another stone and perhaps bundling it in with a massive party. 486 00:34:59,780 --> 00:35:03,520 When the job goes viral, influencers will line up. 487 00:35:04,160 --> 00:35:06,680 You could be doing live updates. 488 00:35:07,370 --> 00:35:08,730 to share what's happening. 489 00:35:09,010 --> 00:35:14,410 You could be showing the live footage of people moving these 20 -ton rocks. 490 00:35:14,670 --> 00:35:18,350 Pretty much all of the social media now have live streaming capabilities. 491 00:35:19,330 --> 00:35:24,830 You could have a really good group of people helping you publicize this where 492 00:35:24,830 --> 00:35:26,550 they've got 2 million followers. 493 00:35:27,490 --> 00:35:33,310 So how long would this project take with a first -class logistics team and an 494 00:35:33,310 --> 00:35:34,310 army of influencers? 495 00:35:35,240 --> 00:35:42,140 You can move maybe three miles a day. For 180 miles, you could do that in a 496 00:35:42,140 --> 00:35:43,140 summer season. 497 00:35:43,240 --> 00:35:46,740 Cutting back on the thousand years it took to build Stonehenge. 498 00:35:46,940 --> 00:35:47,980 No problem. 499 00:35:48,760 --> 00:35:52,120 It's going to have been done in less than 10 years. That would be my guess. 500 00:35:52,660 --> 00:35:56,200 10 years isn't much worse than any other modern mega build. 501 00:35:56,660 --> 00:36:02,480 So let's form our team and leave the Stonehenge builders in the dust. 502 00:36:03,240 --> 00:36:05,320 But there's one burning question. 503 00:36:05,620 --> 00:36:10,220 Who's picking up the bill if we built it today? 504 00:36:12,700 --> 00:36:19,000 We're rebuilding Stonehenge, reimagining 3 ,000 tons of stone 505 00:36:19,000 --> 00:36:25,340 in an outdoor venue built for thousands of people, celebrating the power of 506 00:36:25,340 --> 00:36:29,280 women with a monument that will last an eternity. 507 00:36:29,720 --> 00:36:32,160 And thanks to non -profit organizations, 508 00:36:32,960 --> 00:36:35,840 Construction volunteering is thriving. 509 00:36:36,960 --> 00:36:43,560 Over 13 million people have volunteered their time to help build for people in 510 00:36:43,560 --> 00:36:46,300 need in the past half century. 511 00:36:46,880 --> 00:36:48,860 It's an extraordinary undertaking. 512 00:36:49,540 --> 00:36:55,180 It's going to be more than merely, let's start at A and go to B. 513 00:36:55,870 --> 00:36:58,490 Because you're going to have people all along the way. 514 00:36:58,770 --> 00:37:02,770 People are going to be hearing about it from hundreds of miles away. 515 00:37:03,050 --> 00:37:08,710 And they're going to come and join in. So it's going to be a kind of rolling 516 00:37:08,710 --> 00:37:09,710 spectacle. 517 00:37:10,390 --> 00:37:14,770 And their reward looks an awful lot like what the workers at Stonehenge 518 00:37:14,770 --> 00:37:18,290 received. To do something good. To learn new skills. 519 00:37:18,990 --> 00:37:20,410 To be part of a team. 520 00:37:20,750 --> 00:37:25,330 And just possibly have a great time doing it. 521 00:37:25,770 --> 00:37:29,130 No matter how you cut it, there's going to be a whole lot of lifting. 522 00:37:29,450 --> 00:37:36,170 But rather than move 200 tons of bluestones from 180 miles away, we'll 523 00:37:36,170 --> 00:37:37,950 concrete trucks do the job. 524 00:37:38,470 --> 00:37:40,270 150 of them, to be exact. 525 00:37:40,690 --> 00:37:46,450 The concrete will be poured into giant molds off -site and left to dry. 526 00:37:47,190 --> 00:37:53,390 56 of the small ones, if you call 2 to 5 tons small, and 80 of the big ones, 527 00:37:55,450 --> 00:37:56,450 and broken ones. 528 00:37:57,390 --> 00:38:03,010 Once the concrete sets, we'll kick it old school and use sledges to pull the 529 00:38:03,010 --> 00:38:07,910 stones to our worksite, a labor force of 20 ,000 people. 530 00:38:08,370 --> 00:38:13,610 To lift our concrete forms upright, we dig massive holes with sloped sides, 531 00:38:13,890 --> 00:38:16,590 lining the holes with angled wooden stakes. 532 00:38:18,150 --> 00:38:24,550 The stakes, plus A -frames, provide the leverage it takes for a good old tug -of 533 00:38:24,550 --> 00:38:29,920 -war. As for getting the top stones on the uprights, there's one theory that 534 00:38:29,920 --> 00:38:32,440 makes more sense than alien builders. 535 00:38:32,780 --> 00:38:35,500 But it's not going to be easy. 536 00:38:35,960 --> 00:38:41,720 You don't do it with a timber structure, but you build yourself an earthen 537 00:38:41,720 --> 00:38:48,720 mound, a ramp. And you then pull the lintel up that ramp. And with 538 00:38:48,720 --> 00:38:54,240 the earth, you then just dig it away so that gradually it lowers itself. 539 00:38:55,070 --> 00:38:58,690 To my mind, that's the simplest way to do it. 540 00:39:00,090 --> 00:39:06,190 So we need a whole lot of dirt and elbow grease to build these earthen ramps. 541 00:39:06,570 --> 00:39:11,470 But will we really be able to motivate our builders to construct one of the 542 00:39:11,470 --> 00:39:17,030 world's most fascinating, yet logistically challenging structures 543 00:39:17,030 --> 00:39:18,030 machinery? 544 00:39:19,310 --> 00:39:23,450 I think there is a group of people out there who would say, oh, well, I don't 545 00:39:23,450 --> 00:39:24,670 believe we can do this. 546 00:39:24,990 --> 00:39:26,530 without modern technology. 547 00:39:27,150 --> 00:39:31,490 So I want to see how this is done. They want to participate for that kind of 548 00:39:31,490 --> 00:39:35,390 knowledge. I think there are other people who just want to be part of 549 00:39:35,390 --> 00:39:41,130 fun. And to me, trying to lift a 20 -ton rock doesn't sound very fun, but 550 00:39:41,130 --> 00:39:42,990 there's somebody out there for every project. 551 00:39:44,450 --> 00:39:45,790 That's good enough for us. 552 00:39:46,710 --> 00:39:53,710 A perfect stone circle aligned in harmony with the summer and winter 553 00:39:55,400 --> 00:40:01,940 and created in the Alberta Badlands at the exact latitude of the original. A 554 00:40:01,940 --> 00:40:07,340 year -round venue to celebrate female power, with excellent acoustics to hold 555 00:40:07,340 --> 00:40:08,860 legendary parties. 556 00:40:09,180 --> 00:40:11,360 But what's all this going to cost? 557 00:40:13,180 --> 00:40:17,520 The social media -driven workforce will keep the labor cheap. 558 00:40:18,460 --> 00:40:23,060 If I were trying to recruit a thousand volunteers, 559 00:40:24,310 --> 00:40:29,770 to travel somewhere, to rebuild Stonehenge. I'd be looking at the 560 00:40:29,770 --> 00:40:34,970 people, the people who have that interest in learning how it worked, the 561 00:40:34,970 --> 00:40:36,930 archaeologists, the amateur scientists. 562 00:40:38,330 --> 00:40:43,210 We're estimating $100 million, about the same as it costs to build a small 563 00:40:43,210 --> 00:40:44,210 stadium. 564 00:40:44,570 --> 00:40:48,390 Stonehenge is much simpler, but making it old school is going to drive up the 565 00:40:48,390 --> 00:40:49,390 bill. 566 00:40:50,210 --> 00:40:52,310 But it would be worth every penny. 567 00:40:53,930 --> 00:40:57,110 Because when humans work together, we're unstoppable. 568 00:40:58,410 --> 00:41:03,970 Stonehenge is an eternal monument to that fact, an Old Testament to the best 569 00:41:03,970 --> 00:41:04,970 can be. 570 00:41:05,750 --> 00:41:10,950 There's no denying the incredible power of the original, but a Stonehenge 2 .0 571 00:41:10,950 --> 00:41:15,150 might be just the sort of project we could all use these days. 572 00:41:16,590 --> 00:41:21,250 A place to come together with friends and to revel with strangers. 573 00:41:22,160 --> 00:41:28,780 to celebrate the past and look forward to a brighter future if we built it 574 00:41:28,780 --> 00:41:29,780 today. 52471

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