1 00:00:00,000 --> 00:00:10,600 On this episode of Mythbusters, Adam and Jamie risk drowning and dysentery. 2 00:00:10,600 --> 00:00:19,120 By testing the veracity of this multi-million hit viral video. 3 00:00:19,120 --> 00:00:28,840 Can man, woman or a spawning superstar actually manage to briefly run on water? 4 00:00:28,840 --> 00:00:38,720 In time, Kari, Tori and Grant tried blasting a supposedly survivable action movie stunt. 5 00:00:38,720 --> 00:00:44,160 When you're desperately diving for cover, just what is, and what isn't, bomb proof. 6 00:00:44,160 --> 00:00:50,200 You'd probably be bleeding from your ears, but it is bomb proof. 7 00:00:50,200 --> 00:00:56,440 Who are the Mythbusters? 8 00:00:56,440 --> 00:00:57,440 Adam Savage. 9 00:00:57,440 --> 00:00:59,440 That's 100% wacky right there. 10 00:00:59,440 --> 00:01:02,040 And Jamie Heineman. 11 00:01:02,040 --> 00:01:06,960 Between them more than 30 years of special effects experience. 12 00:01:06,960 --> 00:01:09,840 Joining them, Tori Bellegi. 13 00:01:09,840 --> 00:01:11,520 Let's charge this thing! 14 00:01:11,520 --> 00:01:12,520 Grant Imahara. 15 00:01:12,520 --> 00:01:13,960 It's lethal people. 16 00:01:13,960 --> 00:01:14,960 And Kari Byron. 17 00:01:14,960 --> 00:01:17,560 I'm starting to get the idea that this shouldn't be done inside. 18 00:01:17,560 --> 00:01:19,720 They don't just tell the Myths. 19 00:01:19,720 --> 00:01:20,720 Oh yeah. 20 00:01:20,720 --> 00:01:27,400 They put them to the test. 21 00:01:27,400 --> 00:01:32,160 First up, a myth that seems to defy the laws of physics. 22 00:01:32,160 --> 00:01:35,840 Jamie there's a viral video we absolutely have to test. 23 00:01:35,840 --> 00:01:36,840 Double rainbow? 24 00:01:36,840 --> 00:01:37,840 No. 25 00:01:37,840 --> 00:01:42,000 This is some dudes by the side of a lake wearing shoes they say are water repellent and then 26 00:01:42,000 --> 00:01:44,760 they proceed to run on the water. 27 00:01:44,760 --> 00:01:48,760 They actually run across the surface of the water in these shoes. 28 00:01:48,760 --> 00:01:50,200 I'm dubious. 29 00:01:50,200 --> 00:01:52,160 And that's why we're interested in this. 30 00:01:52,160 --> 00:01:55,600 Let's roll the videotape! 31 00:01:55,600 --> 00:02:00,720 This is the clip that's got more than 7 million online viewers rethinking what they thought 32 00:02:00,720 --> 00:02:03,880 they knew about, well, sinking. 33 00:02:03,880 --> 00:02:05,680 There's not a whole lot to it. 34 00:02:05,680 --> 00:02:11,120 Strap on a pair of waterproof shoes, run on a curve to enhance the skimming effect and 35 00:02:11,120 --> 00:02:14,640 keep the faith for a dozen adrenaline fueled strides. 36 00:02:14,640 --> 00:02:17,120 I think you don't actually believe that you're going to walk on that water. 37 00:02:17,120 --> 00:02:19,000 It's not going to happen for you. 38 00:02:19,000 --> 00:02:21,680 They call it liquid mountaineer. 39 00:02:21,680 --> 00:02:27,240 It is this approach to temporarily walking on water, a myth or a miracle. 40 00:02:27,240 --> 00:02:28,240 What do you think? 41 00:02:28,240 --> 00:02:29,240 Should we just go for it? 42 00:02:29,240 --> 00:02:30,240 I think so. 43 00:02:30,240 --> 00:02:34,360 Let's find ourselves a link and replicate exactly what we see them doing in that clip. 44 00:02:34,360 --> 00:02:35,360 Works for me. 45 00:02:35,360 --> 00:02:36,860 Okay. 46 00:02:36,860 --> 00:02:42,520 Finding a lake that looks much like the one in the clip is the easy part. 47 00:02:42,520 --> 00:02:46,600 Now it's time to run on the water. 48 00:02:46,600 --> 00:02:52,120 James' optimism should be infectious, but over the years, James built up a natural 49 00:02:52,120 --> 00:02:53,120 resistance. 50 00:02:53,120 --> 00:02:56,080 According to the clip, this is all about the shoe. 51 00:02:56,080 --> 00:02:59,320 They're hydrophobic, which means they repel water. 52 00:02:59,320 --> 00:03:04,880 We've got the same type of shoe and they do seem to repel water. 53 00:03:04,880 --> 00:03:09,680 Whether that translates to me being able to run across a lake or something, let's just 54 00:03:09,680 --> 00:03:11,960 say I think I'm going for a swim. 55 00:03:11,960 --> 00:03:16,880 According to the viral video, Jamie needs to hit the water at speed and the turf should 56 00:03:16,880 --> 00:03:20,640 ensure traction right down to the lake's edge. 57 00:03:20,640 --> 00:03:24,680 You know, in the clip, they talked significantly about the curve that you enter the water in, 58 00:03:24,680 --> 00:03:27,400 like on the long arc and about believing. 59 00:03:27,400 --> 00:03:30,320 You believe you can do it? 60 00:03:30,320 --> 00:03:31,320 I'm right there. 61 00:03:31,320 --> 00:03:32,320 You know me. 62 00:03:32,320 --> 00:03:33,320 All right. 63 00:03:33,320 --> 00:03:34,320 All right. 64 00:03:34,320 --> 00:03:37,920 Here we go. 65 00:03:37,920 --> 00:03:42,680 So much for focus, but maybe it does all come down to self-belief. 66 00:03:42,680 --> 00:03:54,120 Three, two, one, go. 67 00:03:54,120 --> 00:03:56,840 Or maybe not. 68 00:03:56,840 --> 00:04:01,520 These shoes don't repel water well enough to keep me on top of the water. 69 00:04:01,520 --> 00:04:07,200 I just sort of ran into the water and that's all there is to it. 70 00:04:08,200 --> 00:04:09,200 All right, come on out. 71 00:04:09,200 --> 00:04:10,760 I want to give it a shot. 72 00:04:10,760 --> 00:04:12,800 So any words of advice? 73 00:04:12,800 --> 00:04:13,800 Keep your mouth closed. 74 00:04:13,800 --> 00:04:16,200 It's sort of like you should a duck poop in there. 75 00:04:16,200 --> 00:04:17,200 No, God. 76 00:04:17,200 --> 00:04:19,200 No problem. 77 00:04:19,200 --> 00:04:24,560 Adam's instincts tell him a longer run up might yield a better result. 78 00:04:24,560 --> 00:04:26,680 Okay, I'm ready. 79 00:04:26,680 --> 00:04:35,840 In three, two, one, go. 80 00:04:35,840 --> 00:04:38,120 You really can't fault the execution. 81 00:04:38,120 --> 00:04:42,960 In fact, Adam's effort looked just like the ones in the video except for the end bit. 82 00:04:42,960 --> 00:04:48,760 This water is disgusting. 83 00:04:48,760 --> 00:04:51,560 So did you feel like you were on top of the water? 84 00:04:51,560 --> 00:04:54,000 I mean, because you didn't really look like it. 85 00:04:54,000 --> 00:04:59,360 I felt like I was getting some good leg motion, like pat, pat, pat on the ground. 86 00:04:59,360 --> 00:05:03,640 And then my foot hits the water and it just kept going. 87 00:05:04,400 --> 00:05:07,240 Apparently the technique does take some getting used to. 88 00:05:07,240 --> 00:05:09,120 So I'm going to give it another go. 89 00:05:09,120 --> 00:05:11,120 Knock yourself out. 90 00:05:11,120 --> 00:05:18,040 They both decide to continue the testing, desperate to take at least one step on water. 91 00:05:18,040 --> 00:05:21,160 Just continue. 92 00:05:21,160 --> 00:05:24,920 Do not work. 93 00:05:24,920 --> 00:05:28,320 Every single attempt ends with a splash and a crash. 94 00:05:28,320 --> 00:05:31,160 Well, that was a spectacular failure. 95 00:05:31,680 --> 00:05:35,240 Yeah, these shoes are going to have to have a lot more going for them than water repellents 96 00:05:35,240 --> 00:05:36,240 for that to work. 97 00:05:36,240 --> 00:05:38,240 That's true enough. 98 00:05:41,240 --> 00:05:45,720 Now to a myth that takes self-preservation to its natural conclusion. 99 00:05:45,720 --> 00:05:51,200 All right, so as you guys know, and you guys definitely know, we have tested a ton of myths 100 00:05:51,200 --> 00:05:54,520 where we have taken everyday objects to see if they're bulletproof. 101 00:05:54,520 --> 00:05:56,520 Like laptops, sheriff badges. 102 00:05:56,520 --> 00:06:00,880 Yep, and we've also done an episode on what is supposedly stab proof. 103 00:06:01,600 --> 00:06:02,680 Exactly, but you know what? 104 00:06:02,680 --> 00:06:04,120 This one is going to trump them all. 105 00:06:04,120 --> 00:06:09,400 We are taking everyday objects to see if they're bomb proof. 106 00:06:09,400 --> 00:06:16,960 And those everyday objects, as suggested by you the fans, are a table, a car, a wall, 107 00:06:16,960 --> 00:06:18,360 and a dumpster. 108 00:06:18,360 --> 00:06:22,920 All four inspired by Hollywood. 109 00:06:22,920 --> 00:06:27,760 It's the kind of stuff you see all the time in action movies. 110 00:06:27,760 --> 00:06:33,640 Once before a bomb blast, the hero leaps to safety behind a parked car. 111 00:06:33,640 --> 00:06:38,040 The heroine is just close enough to reach that cinder block wall. 112 00:06:38,040 --> 00:06:44,480 Or the sidekick who's still got a snappy line or two left in him finds refuge in the refuse. 113 00:06:44,480 --> 00:06:50,600 But we want to know if any of these suburban shields could really save your bacon. 114 00:06:50,600 --> 00:06:54,760 Okay, for the Explosive De Jure, how about we use C4? 115 00:06:54,760 --> 00:06:57,000 That's used in a lot of Hollywood explosions. 116 00:06:57,000 --> 00:06:58,000 That's great. 117 00:06:58,000 --> 00:07:00,720 And first we should do a control blast to establish the injury zone. 118 00:07:00,720 --> 00:07:03,720 Then we're going to start bringing objects one by one to see if they're bomb proof. 119 00:07:03,720 --> 00:07:07,200 Alright, well the maximum amount of C4 we can use at the bomb range is three pounds. 120 00:07:07,200 --> 00:07:09,200 That is going to be a huge blast. 121 00:07:09,200 --> 00:07:11,200 This is going to be a cool experiment. 122 00:07:11,200 --> 00:07:13,200 You have no idea how right you are. 123 00:07:13,200 --> 00:07:19,200 For the whole team, this shapes up as a pretty sweet day at the office. 124 00:07:19,200 --> 00:07:21,200 What's bomb proof? 125 00:07:21,200 --> 00:07:23,880 I can't believe we haven't thought of this one before. 126 00:07:23,880 --> 00:07:28,920 The first thing to work out is the perfect test distance between the bomb and the shields. 127 00:07:28,920 --> 00:07:33,000 Too close and the whole experiment just blows to pieces. 128 00:07:33,000 --> 00:07:37,760 Too far away and the shock wave might not be lethal in the first place. 129 00:07:37,760 --> 00:07:39,760 So this will take some finessy. 130 00:07:39,760 --> 00:07:43,440 Come on Byron, hurry up, we don't have all day. 131 00:07:43,440 --> 00:07:48,440 Now, we're going to set up a number of radii from the epicenter of the blast. 132 00:07:48,440 --> 00:07:51,080 At each of these radii we're going to put two burstists. 133 00:07:51,080 --> 00:07:55,680 One that goes at 13, which is the threshold of injury, and one that goes at 75, which 134 00:07:55,680 --> 00:07:57,680 is the threshold of instant death. 135 00:07:57,680 --> 00:08:03,720 We've used burst discs before on the show to find out if various shock waves were survivable 136 00:08:03,720 --> 00:08:08,200 without actually resorting to a human sacrifice. 137 00:08:08,200 --> 00:08:13,360 So in this control blast, they're testing the outer limits of two differently calibrated 138 00:08:13,360 --> 00:08:14,480 discs. 139 00:08:14,480 --> 00:08:18,280 One said for a certain death, the other for injury. 140 00:08:18,280 --> 00:08:22,640 Up to some point, once the blast goes off, these are all going to burst. 141 00:08:22,640 --> 00:08:27,280 At the point where they don't burst, inside of that radius is injury. 142 00:08:27,280 --> 00:08:28,280 Outside of it is a safe zone. 143 00:08:28,280 --> 00:08:34,760 An identical on the other side, inside of the death radius means instant death. 144 00:08:34,760 --> 00:08:35,760 Three pound C4. 145 00:08:35,760 --> 00:08:39,800 Alright, you guys ready to see how much damage this shock wave can do? 146 00:08:39,800 --> 00:08:41,200 Absolutely. 147 00:08:41,200 --> 00:08:42,200 Charging. 148 00:08:42,200 --> 00:08:46,200 And three, two, one. 149 00:08:47,120 --> 00:08:51,000 Oh, that was a nice, that was a good one. 150 00:08:51,000 --> 00:08:53,000 Let's go check our discs. 151 00:08:53,000 --> 00:08:56,920 Three pounds of C4 is the most we can actually use at the bomb range. 152 00:08:56,920 --> 00:08:57,920 And I can see why. 153 00:08:57,920 --> 00:09:01,720 That is a nice, high-powered destructive explosion. 154 00:09:01,720 --> 00:09:07,840 We've got a beautiful, quick, orange, and then nice, clear, kind of sheer destructive 155 00:09:07,840 --> 00:09:10,000 blast. 156 00:09:10,000 --> 00:09:11,000 Destructive is right. 157 00:09:11,000 --> 00:09:14,520 All that's left of the C4 spike is a stump. 158 00:09:14,960 --> 00:09:17,440 Alright, so death side first, what do we got? 159 00:09:17,440 --> 00:09:19,680 We are bursting at 10 feet. 160 00:09:19,680 --> 00:09:22,400 So if you're anywhere 0 to 10 feet from the blast, you're dead. 161 00:09:22,400 --> 00:09:26,760 In the staggered arc, the 10-foot disc was the farthest one to burst. 162 00:09:26,760 --> 00:09:32,040 The discs at 11 feet and beyond stayed intact, so they've got their range. 163 00:09:32,040 --> 00:09:34,040 Alright, let's check injury. 164 00:09:34,040 --> 00:09:41,520 As the shock wave expands, the chance of death, as you'd expect, decreases with distance. 165 00:09:41,520 --> 00:09:44,160 Oh, look at all these ruptures. 166 00:09:44,200 --> 00:09:46,200 This is the 20-foot marker. 167 00:09:46,200 --> 00:09:47,200 All the way through. 168 00:09:47,200 --> 00:09:50,120 Alright, so that's the injury radius. 169 00:09:50,120 --> 00:09:53,040 0 to 20 feet, you're getting injured. 170 00:09:53,040 --> 00:10:00,400 Once again, they've got their range by noting that the next disc at 21 feet didn't burst. 171 00:10:00,400 --> 00:10:06,400 So these are the blast boundaries, just inside 10 feet for certain death and inside 20 for 172 00:10:06,400 --> 00:10:07,480 injury. 173 00:10:07,480 --> 00:10:12,800 But could everyday objects placed on the edge of the zones really save life and limb? 174 00:10:13,800 --> 00:10:17,800 There's just one way to test it, and that's by blowing stuff up. 175 00:10:21,160 --> 00:10:28,160 After the break, Adam and Jamie see if sheer speed can enhance your running on water experience. 176 00:10:28,160 --> 00:10:29,160 Go! 177 00:10:36,160 --> 00:10:41,560 Having totally failed to skip across a lake like a well-pitched stone, Adam and Jamie have 178 00:10:41,600 --> 00:10:43,600 reverted to Plan B. 179 00:10:46,600 --> 00:10:47,600 On your marks. 180 00:10:47,600 --> 00:10:48,600 It's set. 181 00:10:51,600 --> 00:10:53,600 And Plan B is a beauty. 182 00:10:54,600 --> 00:10:58,200 Now, if successfully running on the water is dependent on speed, we need someone really 183 00:10:58,200 --> 00:11:01,520 fast, and that's where Wallace Spearman behind me comes into the picture. 184 00:11:01,520 --> 00:11:06,440 He's 6'3", 170 pounds, and he's run the 200 meters in 19.65 seconds, making him the 185 00:11:06,480 --> 00:11:11,480 5th fastest person in the world at that distance and the perfect test subject for us. 186 00:11:11,480 --> 00:11:12,480 How you doing? 187 00:11:12,480 --> 00:11:13,480 Pretty good. 188 00:11:13,480 --> 00:11:16,360 If speed's the missing ingredient, that's what Wallace is brought. 189 00:11:16,360 --> 00:11:21,800 They figure that lightning speed might well be the key to success, and this man also runs 190 00:11:21,800 --> 00:11:24,920 the 100 meters in under 10 seconds. 191 00:11:24,920 --> 00:11:26,800 So Wallace, how far you think you're gonna get? 192 00:11:26,800 --> 00:11:28,480 I'm hoping 3 steps. 193 00:11:28,480 --> 00:11:29,480 This 3 steps? 194 00:11:29,480 --> 00:11:31,600 I'm fast, but I don't know if I'm that fast. 195 00:11:31,600 --> 00:11:32,600 We'll see. 196 00:11:32,600 --> 00:11:33,480 Okay. 197 00:11:33,480 --> 00:11:35,800 This test is mostly about speed. 198 00:11:35,800 --> 00:11:40,960 When Wallace is pretty fast on land, however, when Wallace moves from the land and into the 199 00:11:40,960 --> 00:11:45,320 water, he's not gonna have the same kind of traction, and that means he's gonna slow 200 00:11:45,320 --> 00:11:48,160 down really quickly. 201 00:11:48,160 --> 00:11:51,920 I'm more nervous for this than I was at the Olympics. 202 00:11:51,920 --> 00:11:56,640 And fair enough, even the Olympics can't compare to walking on water. 203 00:11:56,640 --> 00:11:59,600 So let's see if sheer speed is the answer. 204 00:11:59,600 --> 00:12:02,600 3, 2, 1, go! 205 00:12:06,800 --> 00:12:08,800 Apparently not. 206 00:12:08,800 --> 00:12:10,800 It's cold. 207 00:12:11,800 --> 00:12:15,800 He didn't seem to do any better than any over other tests. 208 00:12:15,800 --> 00:12:20,800 Now his first step on the water actually was quite a bit further out, but once it touched 209 00:12:20,800 --> 00:12:23,800 the water, it went down, same as the rest of us. 210 00:12:23,800 --> 00:12:28,800 But Spearman Jr. hasn't come all this way to pick up his towel and run home. 211 00:12:28,800 --> 00:12:29,800 Take off. 212 00:12:29,800 --> 00:12:33,800 In 3, 2, 1, go! 213 00:12:35,800 --> 00:12:44,800 I don't think he's working, guys. 214 00:12:44,800 --> 00:12:45,800 Try harder. 215 00:12:45,800 --> 00:12:47,800 You got your coach? 216 00:12:47,800 --> 00:12:53,800 Wallace has also seen the viral video, and just like Jamie and Adam, he's become obsessed 217 00:12:53,800 --> 00:12:57,800 with the thought that a minor miracle might be only a quick step away. 218 00:12:57,800 --> 00:12:59,800 He's not quitting. 219 00:12:59,800 --> 00:13:03,800 You know, one of the things that they talked about extensively in the video was how much 220 00:13:03,800 --> 00:13:06,800 you had to want it to run on the water. 221 00:13:06,800 --> 00:13:09,800 And Wallace did a fantastic job at that. 222 00:13:09,800 --> 00:13:10,800 He talked to us about it. 223 00:13:10,800 --> 00:13:12,800 He really wanted to make this work. 224 00:13:12,800 --> 00:13:13,800 He thought about a stride. 225 00:13:13,800 --> 00:13:17,800 He thought about the way his feet were hitting the water, and he gave it every chance he could. 226 00:13:17,800 --> 00:13:19,800 And it was still a total bust. 227 00:13:19,800 --> 00:13:20,800 What is? 228 00:13:20,800 --> 00:13:23,800 So it turns out, speed's not everything. 229 00:13:23,800 --> 00:13:28,800 Maybe if we got Wallace up to about 100 miles an hour, he'd skip across the lake like a rock. 230 00:13:29,800 --> 00:13:37,800 But given that humans can only run up to about 30 miles an hour, it's not happening. 231 00:13:37,800 --> 00:13:45,800 Alright, so we've done our control test, and it turns out if you are 10 feet away from 232 00:13:45,800 --> 00:13:48,800 3 pounds of sea floor exploding, you're dead. 233 00:13:48,800 --> 00:13:51,800 If you're 20 feet away, you're going to be pretty messed up. 234 00:13:51,800 --> 00:13:55,800 Now that we've established those distances, we're going to see if hiding behind an object 235 00:13:55,800 --> 00:13:58,800 can protect you from the blast wave. 236 00:13:58,800 --> 00:14:03,800 And the first object might not be your first choice of shelter, assuming you had a choice. 237 00:14:03,800 --> 00:14:06,800 That's because it's a plain wooden table. 238 00:14:06,800 --> 00:14:12,800 I don't know, I don't think I'd want to be 10 feet away from 3 pounds of sea floor behind just a table. 239 00:14:12,800 --> 00:14:14,800 Oh, come on, that's 3 quarter inch pine. 240 00:14:14,800 --> 00:14:16,800 Yeah, it does seem kind of flimsy, huh? 241 00:14:16,800 --> 00:14:19,800 We'll find out how flimsy in just a few minutes. 242 00:14:19,800 --> 00:14:27,800 Grant plants the burst disk behind the pine, as Carrie and Tori deliver a twin for the 20-foot test. 243 00:14:27,800 --> 00:14:29,800 Alright, let's point it towards the blast. 244 00:14:29,800 --> 00:14:31,800 This is the injury zone. 245 00:14:31,800 --> 00:14:33,800 Alright, get in there. 246 00:14:33,800 --> 00:14:39,800 Given the likelihood of shrapnel, foam figures are added to catch any potentially fatal shards. 247 00:14:39,800 --> 00:14:43,800 But the way Grant sees it, that's not the main threat. 248 00:14:43,800 --> 00:14:47,800 So when we're looking at what is bomb proof, what we're actually looking at is a branch of physics 249 00:14:47,800 --> 00:14:53,800 called fluid dynamics, because we're looking at the movement of air, and air is technically a fluid. 250 00:14:53,800 --> 00:15:00,800 And when you set off a high explosive, such as C4, what it does is create a high velocity, high pressure wave of air. 251 00:15:00,800 --> 00:15:04,800 And that high pressure is potentially what is deadly to you. 252 00:15:04,800 --> 00:15:10,800 With one table just 10 feet from ground zero, and the other a scant 20. 253 00:15:10,800 --> 00:15:13,800 13 psi for the injury zone. 254 00:15:13,800 --> 00:15:16,800 It's a test that seems certain to end in splinters. 255 00:15:16,800 --> 00:15:21,800 Unprotected, we know that a blast of C4 would ruin your health. 256 00:15:21,800 --> 00:15:25,800 Now, to see if a simple pine table can save you. 257 00:15:25,800 --> 00:15:30,800 Okay, this is what is bomb proof wooden table. 258 00:15:30,800 --> 00:15:36,800 Alright, charging in three, two, one. 259 00:15:36,800 --> 00:15:38,800 Whoa! 260 00:15:38,800 --> 00:15:39,800 Wow! 261 00:15:39,800 --> 00:15:42,800 Well, that was definitely the death zone. 262 00:15:42,800 --> 00:15:46,800 Now, one table is down, but the other table is still standing. 263 00:15:46,800 --> 00:15:48,800 Let's go look at the damage. 264 00:15:49,800 --> 00:15:54,800 No prize for guessing which table is gone, and which one looks kind of intact. 265 00:15:54,800 --> 00:15:58,800 But the rubble inside the death zone has a surprise in store. 266 00:15:58,800 --> 00:15:59,800 There's no table left. 267 00:15:59,800 --> 00:16:01,800 The table is completely destroyed. 268 00:16:01,800 --> 00:16:02,800 Oh my God! 269 00:16:02,800 --> 00:16:03,800 No way! 270 00:16:03,800 --> 00:16:05,800 The burstness are intact. 271 00:16:05,800 --> 00:16:07,800 What the heck? How is that possible? 272 00:16:07,800 --> 00:16:10,800 The table must have deflected the pressure wave. 273 00:16:10,800 --> 00:16:16,800 That's exactly what it did, even if Tori finds the data hard to swallow. 274 00:16:17,800 --> 00:16:20,800 Well, there is no way you would have come away from this uninjured. 275 00:16:20,800 --> 00:16:25,800 No, but by our criteria, you would not have instantly died. 276 00:16:27,800 --> 00:16:29,800 Grant makes a good point. 277 00:16:29,800 --> 00:16:35,800 Incredibly, a simple wooden table made an otherwise fatal explosion survivable. 278 00:16:35,800 --> 00:16:38,800 Now, to check out the injury disc at the 20 foot mark. 279 00:16:38,800 --> 00:16:40,800 Okay, well the table is still standing. 280 00:16:40,800 --> 00:16:41,800 Let's see. 281 00:16:41,800 --> 00:16:42,800 Sort of. 282 00:16:43,800 --> 00:16:45,800 It's not burst. 283 00:16:45,800 --> 00:16:46,800 Definitely crinkled. 284 00:16:46,800 --> 00:16:49,800 You may have got away without any injury on this one. 285 00:16:49,800 --> 00:16:51,800 Okay, these results are so interesting. 286 00:16:51,800 --> 00:16:52,800 Let's go check out the high speed. 287 00:16:52,800 --> 00:16:54,800 I'm dying to see what it looks like. 288 00:16:54,800 --> 00:16:55,800 Me too. 289 00:16:55,800 --> 00:16:59,800 And it looks like that massive shock wave was at least interrupted by the table 290 00:16:59,800 --> 00:17:02,800 that Tori quite recently called flimsy. 291 00:17:03,800 --> 00:17:04,800 Whoa! 292 00:17:04,800 --> 00:17:05,800 Wow! 293 00:17:05,800 --> 00:17:06,800 Look at the wave. 294 00:17:06,800 --> 00:17:07,800 Yay. 295 00:17:07,800 --> 00:17:11,800 The disc didn't burst, but that table is in shreds. 296 00:17:11,800 --> 00:17:14,800 Both tables absorb the brunt of the blast. 297 00:17:14,800 --> 00:17:20,800 In the 10 foot death zone, extreme shrapnel from the shattered wood might have been fatal, 298 00:17:20,800 --> 00:17:22,800 but the shock wave wouldn't. 299 00:17:22,800 --> 00:17:26,800 At a 20 feet, you will remain snug and safe. 300 00:17:27,800 --> 00:17:32,800 Up next, replicating a reptile that has this whole water walk thing down pat. 301 00:17:33,800 --> 00:17:35,800 Yeah, it's a big tail, so what? 302 00:17:41,800 --> 00:17:42,800 Go! 303 00:17:42,800 --> 00:17:52,800 So far, Adam and Jamie and a world-class runner have failed to replicate this viral video, 304 00:17:52,800 --> 00:17:55,800 so it's time to think outside the box. 305 00:17:56,800 --> 00:18:00,800 Well, we couldn't make it work, and speed is definitely not a factor, so where do we go from here? 306 00:18:00,800 --> 00:18:04,800 Well, I think I may have found the grain of truth at the heart of this myth. 307 00:18:04,800 --> 00:18:05,800 Really? 308 00:18:05,800 --> 00:18:06,800 Really. 309 00:18:06,800 --> 00:18:11,800 Turns out there's a basilisk lizard, otherwise known as the Jesus Christ lizard, 310 00:18:11,800 --> 00:18:13,800 that actually can run on water. 311 00:18:13,800 --> 00:18:14,800 It can. 312 00:18:14,800 --> 00:18:15,800 It can. 313 00:18:15,800 --> 00:18:16,800 Really? 314 00:18:16,800 --> 00:18:17,800 Really. 315 00:18:17,800 --> 00:18:18,800 Yeah, really. 316 00:18:18,800 --> 00:18:23,800 This remarkable reptile can run as far as 20 yards across the water's surface, 317 00:18:23,800 --> 00:18:29,800 and that's just the kind of inspiration they need to replicate the results of the viral video. 318 00:18:29,800 --> 00:18:33,800 Alright, it looks like his feet are actually slapping the surface of the water, 319 00:18:33,800 --> 00:18:38,800 but they're continuing to push down and back as he's moving along. 320 00:18:38,800 --> 00:18:42,800 Well, also, it's not like he's running like this. 321 00:18:42,800 --> 00:18:44,800 He's like running with his legs out. 322 00:18:44,800 --> 00:18:47,800 Yeah, in an or-life fashion. 323 00:18:48,800 --> 00:18:50,800 I could watch this all day. 324 00:18:50,800 --> 00:18:52,800 But that's not going to happen. 325 00:18:52,800 --> 00:18:59,800 Based on what they just saw, Adam and Jamie will each build their own versions of lizard-human hybrid footwear. 326 00:18:59,800 --> 00:19:02,800 The aim is the same, to run on water. 327 00:19:02,800 --> 00:19:06,800 Where the waterproof shoes failed, these just might do the job. 328 00:19:06,800 --> 00:19:12,800 So, after looking at all the scientific papers that I've got about the physics of how this lizard stays above the water, 329 00:19:12,800 --> 00:19:18,800 it really seems to come down to the surface area of its foot and how hard it smacks the water. 330 00:19:18,800 --> 00:19:24,800 The design details of Adam's water-smacking lizard loafers are all in his head. 331 00:19:24,800 --> 00:19:28,800 The hinge in his feet shows that flexibility is a key factor. 332 00:19:28,800 --> 00:19:31,800 But otherwise, it's a case of watch and weight. 333 00:19:31,800 --> 00:19:35,800 Jamie, however, lays all his cards on the table. 334 00:19:35,800 --> 00:19:38,800 I figure, why mess around? 335 00:19:39,800 --> 00:19:44,800 It's clear from the get-go that we're witnessing the birth of the shovel shoe. 336 00:19:44,800 --> 00:19:46,800 Batten-bending. 337 00:19:46,800 --> 00:19:49,800 Now, a lizard foot is an incredibly hard thing to replicate. 338 00:19:49,800 --> 00:19:56,800 It's a whole bunch of finely muscled and jointed segments all working together that allow it to run on water. 339 00:19:56,800 --> 00:19:59,800 So, I've taken a kind of intuitive leap here. 340 00:19:59,800 --> 00:20:05,800 I'm hoping that cup shape of the inverted shovel blade will cut into the water and then scoop it backwards. 341 00:20:05,800 --> 00:20:11,800 Once it's finished with the first sweep, it should be easy enough to pull the whole thing forwards without dragging half the lake back with it. 342 00:20:11,800 --> 00:20:19,800 And just so you don't break your ankles, the attachments I'm using here are slightly modified boots and ankle braces from snowboards. 343 00:20:19,800 --> 00:20:23,800 Meantime, Adam proves he's the master of multitasking. 344 00:20:23,800 --> 00:20:26,800 If you're not sure what he's up to, here's a clue. 345 00:20:26,800 --> 00:20:29,800 So, his tail's coming out to about here. 346 00:20:29,800 --> 00:20:32,800 Seems like it's counterbalancing him. 347 00:20:32,800 --> 00:20:35,800 Yeah, also potentially, you know, ruddering. 348 00:20:35,800 --> 00:20:40,800 Yep, in the quest to build a better lizard, Adam's decided it's not all about the feet. 349 00:20:40,800 --> 00:20:43,800 The basilisk lizard has substantial counterbalance. 350 00:20:43,800 --> 00:20:48,800 So, an articulated tail is deemed essential equipment. 351 00:20:48,800 --> 00:20:50,800 Yeah, it's a big tail, so what? 352 00:20:50,800 --> 00:20:55,800 Adam's done and Jamie's shovel shoes are also ready for action. 353 00:20:57,800 --> 00:20:59,800 That might work. 354 00:20:59,800 --> 00:21:05,800 So, it's back to the very same lake that proved so unsupportive the first time around. 355 00:21:05,800 --> 00:21:07,800 But they have changed the stunt staff. 356 00:21:07,800 --> 00:21:10,800 Our water walking lizard today will be played by Jessica. 357 00:21:10,800 --> 00:21:14,800 She's 58 and a quarter inches tall, weighs 100 pounds and she's an acrobat. 358 00:21:14,800 --> 00:21:17,800 We think that her strength, her agility and her diminutive size 359 00:21:17,800 --> 00:21:21,800 make her the perfect candidate to help us make this work. 360 00:21:21,800 --> 00:21:22,800 You feeling ready? 361 00:21:22,800 --> 00:21:23,800 Ready! 362 00:21:23,800 --> 00:21:24,800 Let's do it. 363 00:21:24,800 --> 00:21:32,800 If either design stands a chance, it makes sense to strap them to the lightest, most agile frame they can find. 364 00:21:32,800 --> 00:21:34,800 First up is the control. 365 00:21:34,800 --> 00:21:40,800 Our point of comparison, Jessica is going to run into the water without any apparatus on her, just like we did. 366 00:21:40,800 --> 00:21:43,800 Jessica's faster than Adam and Jamie. 367 00:21:43,800 --> 00:21:47,800 She's much lighter and the odds are she should do a little better. 368 00:21:47,800 --> 00:21:48,800 Here we go. 369 00:21:48,800 --> 00:21:53,800 Running on water, control in three, two, one, go! 370 00:22:00,800 --> 00:22:01,800 She is fast. 371 00:22:01,800 --> 00:22:02,800 Yep. 372 00:22:02,800 --> 00:22:03,800 Come on out. 373 00:22:04,800 --> 00:22:05,800 Nice work. 374 00:22:05,800 --> 00:22:06,800 Let's get you dry. 375 00:22:07,800 --> 00:22:12,800 Checking the high speed, it's hard to see any marked improvement over Adam and Jamie. 376 00:22:12,800 --> 00:22:16,800 She ran, she hit water and she sank. 377 00:22:18,800 --> 00:22:24,800 Come on it, but maybe, just maybe, Adam's giant shoes will reverse the result. 378 00:22:24,800 --> 00:22:28,800 The biggest obstacle to buoyancy is that Jess is denser than water. 379 00:22:28,800 --> 00:22:31,800 But then again, so is a lizard. 380 00:22:31,800 --> 00:22:37,800 The basilisk spreads scaly fringes between its toes to increase its surface area on the water, 381 00:22:37,800 --> 00:22:39,800 which is what Adam's tried to do. 382 00:22:39,800 --> 00:22:43,800 Then it all comes down to speed and balance. 383 00:22:46,800 --> 00:22:52,800 Now if it's true that we are minutes away from setting lizard human hybrid history and walking a human on the water, 384 00:22:52,800 --> 00:22:54,800 it will be because of my two pronged attack. 385 00:22:54,800 --> 00:22:59,800 First prong is the feet, providing the widest possible surface area for Jessica to smack the water with, 386 00:22:59,800 --> 00:23:02,800 providing hopefully enough up pressure to keep her above the surface 387 00:23:02,800 --> 00:23:07,800 and giving her the same amount of flexibility as her normal feet or as close as we could achieve. 388 00:23:07,800 --> 00:23:09,800 The second prong is the tail. 389 00:23:09,800 --> 00:23:16,800 Acting as both a rudder and a stabilizer, a lizard wouldn't run across the water without it and neither will our acrobat. 390 00:23:16,800 --> 00:23:17,800 How's she gonna do? 391 00:23:17,800 --> 00:23:22,800 Well, she looks about as close to a Jesus lizard as you can get at this point. 392 00:23:22,800 --> 00:23:25,800 It worked for the lizard, maybe it'll work for her. 393 00:23:27,800 --> 00:23:28,800 Let's do it. 394 00:23:28,800 --> 00:23:32,800 If nothing else, our acrobat's about to prove she's no lounge lizard. 395 00:23:32,800 --> 00:23:36,800 In three, two, one, go. 396 00:23:36,800 --> 00:23:38,800 You can do it. 397 00:23:38,800 --> 00:23:40,800 Yes, yes, yes, yes. 398 00:23:40,800 --> 00:23:41,800 Oh! 399 00:23:46,800 --> 00:23:48,800 How you doing? You all right? 400 00:23:49,800 --> 00:23:52,800 Astonishingly, it did not work. 401 00:23:52,800 --> 00:23:54,800 It's like stuck in the mud. 402 00:23:54,800 --> 00:23:55,800 Oh really? 403 00:23:55,800 --> 00:24:00,800 Jess did her best, but it's fair to say the rig fell short of its early promising. 404 00:24:01,800 --> 00:24:03,800 Did you feel like the shoes held you above the water at all? 405 00:24:03,800 --> 00:24:04,800 Not at all. 406 00:24:04,800 --> 00:24:06,800 No, he just plunged right in. 407 00:24:06,800 --> 00:24:07,800 Yep. 408 00:24:07,800 --> 00:24:13,800 Now it's all up to genius Jamie to prove that a man or woman can walk on water. 409 00:24:14,800 --> 00:24:19,800 Coming up, the hopefully bomb proof shield that just might defeat its own purpose. 410 00:24:19,800 --> 00:24:21,800 It's right next to that bomb. 411 00:24:21,800 --> 00:24:23,800 It's gonna smash that car. 412 00:24:34,800 --> 00:24:37,800 It's safe from death and injury from the blast wave. 413 00:24:37,800 --> 00:24:41,800 However, at 10 feet, it will not save you from the shrapnel. 414 00:24:41,800 --> 00:24:45,800 But a wooden table is a world away from a mostly metal car. 415 00:24:45,800 --> 00:24:49,800 It's another classic Hollywood refuge suggested by fans. 416 00:24:49,800 --> 00:24:54,800 The Silver Sedan is set side onto the blast, out on the 20-foot ring. 417 00:24:54,800 --> 00:24:56,800 And stop! 418 00:24:57,800 --> 00:25:02,800 This is our 13 PSI burst disc, here at the edge of the injury zone. 419 00:25:02,800 --> 00:25:07,800 And it's right here behind the wheel where, you know, if you were hiding from an explosion, you'd crouch. 420 00:25:08,800 --> 00:25:12,800 Whether or not that's a smart move, we'll find out when the bomb goes off. 421 00:25:12,800 --> 00:25:14,800 The white car drew the short straw. 422 00:25:14,800 --> 00:25:16,800 So it's in the death zone. 423 00:25:16,800 --> 00:25:20,800 And the death disc now has an injury disc for company. 424 00:25:21,800 --> 00:25:24,800 What I've done now is added an injury disc in the death zone. 425 00:25:24,800 --> 00:25:30,800 Because what I want to find out is will the blast cause injury in the death zone now that the car is in place? 426 00:25:30,800 --> 00:25:35,800 Okay, so we've got two cars set up and three pounds of C4 between them. 427 00:25:35,800 --> 00:25:37,800 I think it's going to be a pretty good shield. 428 00:25:37,800 --> 00:25:40,800 Carrie agrees that the car should block the shock wave. 429 00:25:40,800 --> 00:25:42,800 Check out this man. 430 00:25:42,800 --> 00:25:45,800 But she's still convinced it'll all end in tears. 431 00:25:46,800 --> 00:25:49,800 If the burst disc ruptures, it's not from the wave. 432 00:25:49,800 --> 00:25:51,800 It's because the car's going to fall onto him. 433 00:25:51,800 --> 00:25:52,800 It's right next to that bomb. 434 00:25:52,800 --> 00:25:54,800 It tore a table in half. 435 00:25:54,800 --> 00:25:57,800 It's going to smash that car straight into those. 436 00:25:57,800 --> 00:25:59,800 She might be right. 437 00:25:59,800 --> 00:26:04,800 If you're crushed by the shelter you're cringing behind, that does kind of defeat the purpose. 438 00:26:04,800 --> 00:26:06,800 Okay. 439 00:26:06,800 --> 00:26:10,800 Here we go. In three, two, one. 440 00:26:13,800 --> 00:26:16,800 You know what? That looked like a pretty good bomb shield. 441 00:26:16,800 --> 00:26:18,800 Dude, you see how far it moved the car? 442 00:26:18,800 --> 00:26:19,800 Yeah. 443 00:26:19,800 --> 00:26:21,800 I'm not so sure. Let's check it out. 444 00:26:23,800 --> 00:26:26,800 It's clear that the car nearest the bomb took a beating. 445 00:26:26,800 --> 00:26:31,800 But just to build the suspense, they checked the injury zone discs first. 446 00:26:31,800 --> 00:26:34,800 Oh my gosh. Look at the damage it did to that car. 447 00:26:34,800 --> 00:26:37,800 Shadowed the window, knocked the hubcaps off. 448 00:26:37,800 --> 00:26:39,800 Wow. That is intense. 449 00:26:39,800 --> 00:26:42,800 But the disc tells its own story. 450 00:26:42,800 --> 00:26:44,800 They're not at first. We're good. 451 00:26:44,800 --> 00:26:47,800 Alright. Looks like we're bomb-proof against injury at 20 feet. 452 00:26:47,800 --> 00:26:49,800 Perfect. Let's check for death. 453 00:26:49,800 --> 00:26:50,800 Awesome. 454 00:26:50,800 --> 00:26:51,800 So now for the big one. 455 00:26:51,800 --> 00:26:55,800 Behind the death zone car was a death disc and an injury disc. 456 00:26:56,800 --> 00:26:58,800 Wow. 457 00:26:58,800 --> 00:27:00,800 That is crazy. 458 00:27:00,800 --> 00:27:01,800 There's no way you survived this. 459 00:27:01,800 --> 00:27:03,800 Expectations are not hot. 460 00:27:03,800 --> 00:27:06,800 Oh my god. You survived. 461 00:27:06,800 --> 00:27:08,800 You survived death? 462 00:27:08,800 --> 00:27:09,800 Yeah. 463 00:27:09,800 --> 00:27:10,800 You don't die? 464 00:27:10,800 --> 00:27:11,800 No. 465 00:27:11,800 --> 00:27:12,800 You live? 466 00:27:12,800 --> 00:27:13,800 You live. 467 00:27:13,800 --> 00:27:15,800 It takes a while to sink in. 468 00:27:15,800 --> 00:27:19,800 Even though the injury disc burst, the death disc did not. 469 00:27:19,800 --> 00:27:22,800 So by our criteria then, car is bomb-proof. 470 00:27:22,800 --> 00:27:25,800 Looks like there's some truth to these action films after all. 471 00:27:26,800 --> 00:27:31,800 The high speed shows the car buffeted 5 feet, which would knock you flat. 472 00:27:31,800 --> 00:27:35,800 Most of the glass shattered and the burst injury disc shows you 473 00:27:35,800 --> 00:27:37,800 wouldn't jump up shouting, you miss me. 474 00:27:37,800 --> 00:27:43,800 But given this methodology and this amount of C4, a car is a safe shelter. 475 00:27:43,800 --> 00:27:45,800 This is a really cool explosion. 476 00:27:45,800 --> 00:27:48,800 Honestly, I thought the car would get a lot more torn up. 477 00:27:48,800 --> 00:27:50,800 But it turns out it's a really good block. 478 00:27:50,800 --> 00:27:52,800 We did not burst the instant death disc. 479 00:27:52,800 --> 00:27:54,800 Now this is a really interesting result. 480 00:27:54,800 --> 00:27:57,800 We found that a car prevents you from dying in the death zone 481 00:27:57,800 --> 00:28:00,800 and prevents you from getting injured in the injury zone, 482 00:28:00,800 --> 00:28:02,800 which means that it's bomb-proof. 483 00:28:07,800 --> 00:28:12,800 Adam and Jamie are rapidly realizing that the concept of man running on water 484 00:28:12,800 --> 00:28:16,800 is every bit as improbable as it sounds. 485 00:28:16,800 --> 00:28:20,800 Running on top of the water is totally possible. 486 00:28:20,800 --> 00:28:25,800 If you're a bug, something tiny like a water strider is small enough 487 00:28:25,800 --> 00:28:29,800 and light enough to rely on the surface tension of the water to stay on top of it. 488 00:28:29,800 --> 00:28:34,800 As we get larger, though, things like Jesus Lizards have to run really hard 489 00:28:34,800 --> 00:28:35,800 to be able to do that. 490 00:28:35,800 --> 00:28:39,800 And as we get larger still, something like a waterfowl, like a duck, 491 00:28:39,800 --> 00:28:43,800 they can run on top of the water too, but they need help. 492 00:28:43,800 --> 00:28:44,800 They use their wings. 493 00:28:44,800 --> 00:28:49,800 Adam built two fancy lizard feet and a Godzilla tail. 494 00:28:49,800 --> 00:28:53,800 All he managed to do was to half-drown an acrobat. 495 00:28:53,800 --> 00:28:59,800 But Jamie has dreams of his own, and Jessica's job is to make them come true. 496 00:28:59,800 --> 00:29:01,800 So what do you call these? Shovel shoes? 497 00:29:01,800 --> 00:29:05,800 Shovel shoes, they are. Kind of has a nice ring to it, doesn't it? 498 00:29:05,800 --> 00:29:06,800 Yep. 499 00:29:06,800 --> 00:29:09,800 True to form, Jessica's soon up and flapping. 500 00:29:09,800 --> 00:29:11,800 How about trying to do a little run? 501 00:29:11,800 --> 00:29:14,800 It seems like she's found her inner lizard. 502 00:29:14,800 --> 00:29:18,800 There you go. It's just what the Jesus Lizard does, whatever. 503 00:29:18,800 --> 00:29:21,800 You know, just flail at it. 504 00:29:21,800 --> 00:29:23,800 Now let's go back down to the water. 505 00:29:23,800 --> 00:29:27,800 But any purchase of Jamie's shovel shoes comes with a free gift, 506 00:29:27,800 --> 00:29:32,800 a kind of outrigger walking frame that adds balance, much like a tail does, 507 00:29:32,800 --> 00:29:33,800 but up front. 508 00:29:33,800 --> 00:29:36,800 While a tail may provide a certain amount of stability, 509 00:29:36,800 --> 00:29:39,800 I figure that we can do the same thing in the front with the ski, 510 00:29:39,800 --> 00:29:44,800 but with the ski we'll also get a certain amount of supporting lift on the water. 511 00:29:44,800 --> 00:29:48,800 Jamie's also relying on a bigger surface area to help keep Jess afloat, 512 00:29:48,800 --> 00:29:54,800 but Adam's shoes were flat, and these concave feet could make a real difference. 513 00:29:54,800 --> 00:30:00,800 On the other hand, the ski's too cumbersome to carry, so she won't get much of a run-up. 514 00:30:00,800 --> 00:30:05,800 Okay, shovel shoes in three, two, one, go. 515 00:30:05,800 --> 00:30:09,800 Okay, that was just embarrassing. 516 00:30:09,800 --> 00:30:13,800 So maybe the ski should go the way of the tail. 517 00:30:13,800 --> 00:30:16,800 Alright, shovel shoes without the sled. 518 00:30:16,800 --> 00:30:21,800 In three, two, one, go. 519 00:30:21,800 --> 00:30:25,800 She's a good sport. 520 00:30:25,800 --> 00:30:31,800 We could try this a hundred times, and I don't think we'd get running on water. 521 00:30:31,800 --> 00:30:36,800 No, I don't think we would. 522 00:30:36,800 --> 00:30:43,800 Straight ahead, the dumpsters add the brick wall that might or might not save your life. 523 00:30:43,800 --> 00:30:47,800 Hey, somebody threw away a perfectly good myth bus. 524 00:30:52,800 --> 00:30:53,800 So here's where we're at. 525 00:30:53,800 --> 00:30:58,800 We are testing a myth of what is bomb proof, and so far we've tested a wooden table and a car, 526 00:30:59,800 --> 00:31:05,800 and as it turns out, those things are bomb proof, both in the death zone and in the injury zone. 527 00:31:05,800 --> 00:31:08,800 Next up, we're going to test one of these, a dumpster. 528 00:31:08,800 --> 00:31:12,800 It's like in the action movies where a bomb's going off, hero sees the dumpster thinks, 529 00:31:12,800 --> 00:31:14,800 oh, I'll jump in there and be safe. 530 00:31:14,800 --> 00:31:20,800 Whatever happens, it looks like they've already confirmed the myth that getting in is a whole lot easier than getting out. 531 00:31:20,800 --> 00:31:24,800 What a shame, somebody threw away a perfectly good myth bus. 532 00:31:24,800 --> 00:31:26,800 A little help. 533 00:31:26,800 --> 00:31:35,800 As with the table and the car, they'll test two dumpsters, one at the 10 foot death zone and one at the 20 foot injury zone. 534 00:31:35,800 --> 00:31:36,800 Perfect! 535 00:31:36,800 --> 00:31:39,800 If this doesn't work out, we could be trashmen. 536 00:31:40,800 --> 00:31:42,800 Okay, this is the 13 PSI. 537 00:31:42,800 --> 00:31:44,800 Alright, this is the injury disc. 538 00:31:44,800 --> 00:31:49,800 Once again, they fit an injury and a death disc in the death zone dumpster. 539 00:31:49,800 --> 00:31:56,800 Now you'd think those four steel walls would be the best shelter yet against having a bomb churn your insides to custard. 540 00:31:56,800 --> 00:32:03,800 But here's the thing, it's a mostly enclosed box, except for the lid. 541 00:32:03,800 --> 00:32:09,800 If that energy wave actually diffracts around the top edge because it has these rigid walls inside, 542 00:32:09,800 --> 00:32:14,800 you could see some reflection and possibly get higher pressures inside of the box. 543 00:32:15,800 --> 00:32:19,800 And that same exact thought has already occurred to Carrie. 544 00:32:19,800 --> 00:32:26,800 If the wave happens to bounce off the backside of the dumpster, if it amplifies, we might burst one of the discs. 545 00:32:26,800 --> 00:32:28,800 Uh oh, Bob's going off, did it? 546 00:32:28,800 --> 00:32:31,800 But Tori's got no time for this kind of trash talk. 547 00:32:31,800 --> 00:32:34,800 You know what, I have a feeling these are going to act just like a bunker. 548 00:32:34,800 --> 00:32:36,800 I mean, you're surrounded by steel. 549 00:32:36,800 --> 00:32:40,800 The roof is open, but I think the shock wave is going to go right over you. 550 00:32:40,800 --> 00:32:43,800 You might get some ear damage, but I think you're going to be pretty good. 551 00:32:44,800 --> 00:32:50,800 And the catalyst for catastrophe is still three whole pounds of plastic explosive. 552 00:32:50,800 --> 00:32:52,800 Let's do this. 553 00:32:52,800 --> 00:32:55,800 In three, two, one. 554 00:32:59,800 --> 00:33:02,800 Wow, that looked pretty good. Those dumpsters looking pretty good shape. 555 00:33:02,800 --> 00:33:03,800 Yeah, let's check it out. 556 00:33:03,800 --> 00:33:04,800 That one was right with boom. 557 00:33:06,800 --> 00:33:11,800 The 13 psi disc in the injury dumpster remains intact, 558 00:33:11,800 --> 00:33:14,800 so you'd be unscathed at 20 feet. 559 00:33:14,800 --> 00:33:18,800 And the death zone dumpster doesn't look too much the worse for wear. 560 00:33:18,800 --> 00:33:22,800 You know, for being so close to that blast, this dumpster looks in pretty good shape. 561 00:33:22,800 --> 00:33:25,800 Hey, the 75 psi disc is not ruptured. 562 00:33:25,800 --> 00:33:29,800 Yeah, but the injury disc is busted, so you're going to survive, but you're injured. 563 00:33:29,800 --> 00:33:34,800 But some of the shock wave must have penetrated, or the injury disc wouldn't have burst. 564 00:33:34,800 --> 00:33:36,800 Still, the dumpsters did well. 565 00:33:36,800 --> 00:33:41,800 Injury free at the injury zone and alive, but unwell at the death zone. 566 00:33:41,800 --> 00:33:45,800 So this is the dumpster that was 10 feet away from the C4 blast, and look at it. 567 00:33:45,800 --> 00:33:47,800 It's in pretty good shape. 568 00:33:47,800 --> 00:33:50,800 I mean, it's got some concaving happening, so it took a lot of the shock. 569 00:33:50,800 --> 00:33:55,800 But I mean, it acted like armor, and our death disc did not burst, 570 00:33:55,800 --> 00:33:58,800 which means if you were in here, you would have survived. 571 00:33:58,800 --> 00:34:01,800 You'd probably be bleeding from your ears, but it is bombproof. 572 00:34:01,800 --> 00:34:05,800 So far, the results have surprised everyone. 573 00:34:05,800 --> 00:34:12,800 Not least because every shelter tested inside said parameters actually would save your life. 574 00:34:12,800 --> 00:34:15,800 Next and last is a cinder block wall. 575 00:34:15,800 --> 00:34:21,800 And if you think you know how this one goes down, all I can say is you're probably wrong. 576 00:34:21,800 --> 00:34:24,800 I'm pretty sure that this wall is going to block the wave, 577 00:34:24,800 --> 00:34:27,800 and you're going to survive behind it, and you're going to get no injuries behind it. 578 00:34:27,800 --> 00:34:30,800 I mean, it's a brick-freaking wall. 579 00:34:30,800 --> 00:34:34,800 Point taken, and they've only built one brick-freaking wall. 580 00:34:34,800 --> 00:34:36,800 As Tori explains. 581 00:34:36,800 --> 00:34:39,800 So we only have one wall to test this one, but we still have to have the death zone, 582 00:34:39,800 --> 00:34:42,800 which is 10 feet away, and the injury zone, which is 20 feet away. 583 00:34:42,800 --> 00:34:49,800 So, since we only have one wall, we're going to have to move our blast zone to 10 feet and 20 feet. 584 00:34:49,800 --> 00:34:52,800 Common Sense says start wide and work your way in. 585 00:34:52,800 --> 00:34:56,800 So Tori sets the first charge at the 20-foot mark. 586 00:34:56,800 --> 00:35:03,800 Grant fits the 13-psi injury disc, and Carrie supplies the Styrofoam stunt band. 587 00:35:03,800 --> 00:35:09,800 Now to see if a freestanding cinder block wall is as solid and as safe as it looks. 588 00:35:09,800 --> 00:35:13,800 In three, two, one, fire! 589 00:35:15,800 --> 00:35:17,800 I never get tired of that! 590 00:35:17,800 --> 00:35:19,800 That was a big blast! 591 00:35:19,800 --> 00:35:22,800 Alright, let's see if it was bomb proof. 592 00:35:24,800 --> 00:35:26,800 The wall's still intact. 593 00:35:26,800 --> 00:35:27,800 It is. 594 00:35:27,800 --> 00:35:29,800 And the disc? 595 00:35:29,800 --> 00:35:32,800 The disc is crinkled, but still intact. 596 00:35:32,800 --> 00:35:34,800 So it's bomb proof for injury. 597 00:35:34,800 --> 00:35:36,800 Alright, let's see if it'll save your life. 598 00:35:40,800 --> 00:35:49,800 They're down to the last three pounds of explosive, and having the distance from last time brings it all into a perilous perspective. 599 00:35:49,800 --> 00:35:51,800 Alright, 10 feet is right here. 600 00:35:51,800 --> 00:35:53,800 Oh my god, that's so close. 601 00:35:53,800 --> 00:35:55,800 Oh my gosh, we're going to destroy this wall. 602 00:35:55,800 --> 00:35:57,800 Alright, bang it in. 603 00:35:58,800 --> 00:36:03,800 The wall itself was examined and patched up, so it's just as strong as before. 604 00:36:03,800 --> 00:36:05,800 Very trusty right now. 605 00:36:05,800 --> 00:36:06,800 How long ago? 606 00:36:06,800 --> 00:36:09,800 Grant installs the last two burst discs. 607 00:36:09,800 --> 00:36:14,800 Alright, 75, and 13. 608 00:36:15,800 --> 00:36:17,800 And the bunker beckons. 609 00:36:17,800 --> 00:36:21,800 In three, two, one, fire! 610 00:36:22,800 --> 00:36:26,800 Oh my god, down with the wall. 611 00:36:26,800 --> 00:36:29,800 The wall is gone. 612 00:36:29,800 --> 00:36:33,800 I don't know if the disc got ruptured, but I think a brick would fall under it. 613 00:36:33,800 --> 00:36:35,800 I think we have shrapnel. 614 00:36:35,800 --> 00:36:37,800 I don't think that's bomb proof at all. 615 00:36:37,800 --> 00:36:39,800 Let's go check it out. 616 00:36:40,800 --> 00:36:45,800 It sure doesn't look like barely a single brick is still joined to another. 617 00:36:45,800 --> 00:36:49,800 But the bomb proof proof all rests with those sensitive discs. 618 00:36:49,800 --> 00:36:53,800 We're testing the lethality of the shockwave, pure and simple. 619 00:36:53,800 --> 00:36:55,800 Hey! 620 00:36:55,800 --> 00:36:56,800 They both survived! 621 00:36:56,800 --> 00:36:58,800 So both discs are still intact. 622 00:36:58,800 --> 00:37:03,800 Alright, so it looks like the wall protects you from the shockwave, both from injury and death. 623 00:37:03,800 --> 00:37:05,800 It's an amazing result. 624 00:37:05,800 --> 00:37:08,800 The blast was big enough to turn the wall to rubble, 625 00:37:08,800 --> 00:37:12,800 but the wall would still save you from death and even injury. 626 00:37:12,800 --> 00:37:17,800 Incredibly, all four shelters made an otherwise fatal blast survivable, 627 00:37:17,800 --> 00:37:20,800 which is a massively surprising result. 628 00:37:20,800 --> 00:37:25,800 And the foam figure showed that serious shrapnel was only a factor with the wooden table. 629 00:37:25,800 --> 00:37:27,800 I wonder what else is bomb proof. 630 00:37:27,800 --> 00:37:29,800 Look at that duct tape. 631 00:37:29,800 --> 00:37:30,800 Ooh, that's a good one. 632 00:37:30,800 --> 00:37:31,800 Phone books? 633 00:37:31,800 --> 00:37:32,800 Ooh, I like that one. 634 00:37:32,800 --> 00:37:34,800 Alright, well as incredible as it seems, 635 00:37:34,800 --> 00:37:38,800 I think we're going to have to call Myth confirmed on all four shelters. 636 00:37:38,800 --> 00:37:42,800 I mean, they were technically bomb proof in the parameters that we set up. 637 00:37:42,800 --> 00:37:47,800 Yeah, well we should make it clear that if the blasts were any larger or the explosion any closer, 638 00:37:47,800 --> 00:37:48,800 that'd be a different situation. 639 00:37:48,800 --> 00:37:50,800 Yeah, we were specifically testing the blast wave, 640 00:37:50,800 --> 00:37:53,800 and if you dive behind something solid, it's definitely going to dampen it. 641 00:37:53,800 --> 00:37:54,800 But shrapnel? 642 00:37:54,800 --> 00:37:56,800 Now, that's unpredictable. 643 00:38:13,800 --> 00:38:17,800 We've tried everything we can to successfully run on the water. 644 00:38:17,800 --> 00:38:19,800 We've tried it ourselves. 645 00:38:21,800 --> 00:38:24,800 We brought in an Olympic class runner, 646 00:38:26,800 --> 00:38:31,800 and we even made a human lizard hybrid by strapping two special sets of shoes to a gymnast. 647 00:38:31,800 --> 00:38:33,800 Yes, yes, oh! 648 00:38:33,800 --> 00:38:35,800 And nothing has worked. 649 00:38:35,800 --> 00:38:39,800 I think you'll agree that this thing is busted, 650 00:38:39,800 --> 00:38:41,800 but of course we can't leave it there. 651 00:38:41,800 --> 00:38:45,800 We want to see us run on water, which means we've got to cheat this sucker. 652 00:38:45,800 --> 00:38:48,800 And I think you know on Mythbusters, when we're about to cheat something, 653 00:38:48,800 --> 00:38:52,800 that means we're going to utilize a pile of wood and a pile of steel to let the cheating begin. 654 00:38:52,800 --> 00:38:54,800 What we have in mind is a bridge, 655 00:38:54,800 --> 00:38:58,800 but instead of going over the water, our bridge will go under the water, 656 00:38:58,800 --> 00:39:00,800 maybe a couple of inches or so. 657 00:39:00,800 --> 00:39:05,800 You won't be able to see it, but we'll be able to run on it, just like they did in the clip. 658 00:39:05,800 --> 00:39:10,800 But building a sub-aqua sidewalk is a whole lot trickier than it sounds. 659 00:39:10,800 --> 00:39:15,800 We're using square tube steel for the frame because it's relatively easy to cut and weld. 660 00:39:15,800 --> 00:39:18,800 Obviously also it's less buoyant than wood, 661 00:39:18,800 --> 00:39:22,800 and that means that we won't have to weight it down as much to keep it stable. 662 00:39:22,800 --> 00:39:25,800 But they do need a wood surface to run on. 663 00:39:25,800 --> 00:39:29,800 It's got enough give to enhance the illusion of running on water. 664 00:39:29,800 --> 00:39:30,800 Awesome. 665 00:39:30,800 --> 00:39:33,800 The next step is to camouflage it black. 666 00:39:34,800 --> 00:39:35,800 Look at that. 667 00:39:35,800 --> 00:39:41,800 White shirt, black paint, that's what being fearless is all about. 668 00:39:45,800 --> 00:39:46,800 What? 669 00:39:46,800 --> 00:39:50,800 The black paint should reflect the least amount of light, 670 00:39:50,800 --> 00:39:54,800 and it's all tied together with a long strip of flexible clear plastic. 671 00:39:55,800 --> 00:39:59,800 This is the device that will allow us to look like we're running on the water. 672 00:39:59,800 --> 00:40:00,800 It's an underwater bridge. 673 00:40:00,800 --> 00:40:03,800 It has two features that will make this extra realistic, I believe. 674 00:40:03,800 --> 00:40:09,800 One, a set of adjustment nuts all the way down that allow us to precisely calibrate its distance under the water. 675 00:40:09,800 --> 00:40:12,800 I believe it's about one and a half to two inches will be ideal. 676 00:40:12,800 --> 00:40:17,800 And two, this wooden top actually floats, which means when we run along it, 677 00:40:17,800 --> 00:40:23,800 it's actually going to give a little bit, hopefully lending an extra realistic aspect to our running. 678 00:40:23,800 --> 00:40:29,800 All that remains is to sink it precisely to two inches under, and that calls for teamwork. 679 00:40:29,800 --> 00:40:31,800 It's beautifully balanced. 680 00:40:31,800 --> 00:40:32,800 Oh, good. 681 00:40:32,800 --> 00:40:33,800 Let's walk on down. 682 00:40:33,800 --> 00:40:34,800 Okay. 683 00:40:35,800 --> 00:40:39,800 The basic concept of a sunken catwalk is pretty straightforward. 684 00:40:39,800 --> 00:40:41,800 Does that seem right? 685 00:40:41,800 --> 00:40:44,800 I think that seems right. It looks great. Let's lower it down. 686 00:40:44,800 --> 00:40:49,800 But the uneven contours of the lake bed force Adam to make some adjustments. 687 00:40:49,800 --> 00:40:55,800 After a delicate tap or two, both Adam and Jamie are convinced that they're good to go. 688 00:40:55,800 --> 00:41:00,800 I know, I know. You're thinking, I can totally see that bridge. How is this thing going to work? 689 00:41:00,800 --> 00:41:06,800 Remember, special effects is only about building a prop. It's also about how you film the prop. 690 00:41:06,800 --> 00:41:08,800 We're not going to film this from this angle. 691 00:41:08,800 --> 00:41:13,800 We're going to film it from this angle. See? No bridge. 692 00:41:13,800 --> 00:41:14,800 Do you see a bridge? 693 00:41:14,800 --> 00:41:15,800 No bridge. 694 00:41:15,800 --> 00:41:16,800 No bridge. 695 00:41:16,800 --> 00:41:20,800 Now let's see if our fake measures up to theirs. 696 00:41:21,800 --> 00:41:28,800 Running on water by cheating. In three, two, one, go. 697 00:41:28,800 --> 00:41:29,800 All right, let's go. 698 00:41:30,800 --> 00:41:31,800 Come on. 699 00:41:34,800 --> 00:41:36,800 Yeah, that one's great. 700 00:41:38,800 --> 00:41:39,800 Beautiful. 701 00:41:40,800 --> 00:41:43,800 And that, ladies and gentlemen, is how it's done. 702 00:41:44,800 --> 00:41:48,800 Ours was a frog and it looks like theirs was too. 703 00:41:48,800 --> 00:41:49,800 My turn. 704 00:41:49,800 --> 00:41:55,800 But Jamie knows better than anyone that reliable results should be repeatable. 705 00:41:55,800 --> 00:41:57,800 Three, two, one, go. 706 00:41:59,800 --> 00:42:02,800 Go, go, go. You got it. You got it. Yeah, yeah. 707 00:42:04,800 --> 00:42:05,800 Beautiful. 708 00:42:06,800 --> 00:42:08,800 And repeatedly repeatable. 709 00:42:08,800 --> 00:42:22,800 Not to mention reproduced, replicated and duplicated. Just to be on the safe side. 710 00:42:22,800 --> 00:42:24,800 That was very light-footed. 711 00:42:26,800 --> 00:42:27,800 That worked pretty well. 712 00:42:29,800 --> 00:42:36,800 In fact, it matched the viral video so well that the only way to call this myth is busted. 713 00:42:38,800 --> 00:42:43,800 All I think to take home from this is that when you need a little magic to make something work, movie magic will suffice. 714 00:42:43,800 --> 00:42:45,800 And don't believe everything you see. 715 00:42:45,800 --> 00:42:46,800 Exactly. 716 00:42:46,800 --> 00:42:47,800 After you.