1 00:00:00,000 --> 00:00:02,500 Do not try what you're about to see at home. 2 00:00:02,500 --> 00:00:05,700 We consult with experts, we take every precaution and 3 00:00:05,700 --> 00:00:08,220 we have years of experience in dangerous situations. 4 00:00:09,220 --> 00:00:18,220 All for the glory! 5 00:00:31,220 --> 00:00:32,220 Oh no! 6 00:00:32,220 --> 00:00:33,220 Oh yes! 7 00:00:33,220 --> 00:00:35,220 That can only mean one thing. 8 00:00:35,220 --> 00:00:42,220 Yes it can, it means back by popular demand it's time for the Ducktape special number two. 9 00:00:44,220 --> 00:00:46,220 It was one of our most popular shows. 10 00:00:46,220 --> 00:00:48,220 I'm giving it all we got captain! 11 00:00:48,220 --> 00:00:53,220 When the Mythbusters paid homage to Ducktape, fans went into a frenzy. 12 00:00:55,220 --> 00:00:56,220 More Ducktape! 13 00:00:56,220 --> 00:00:57,220 Love it! 14 00:00:57,220 --> 00:01:02,220 Because you asked for it, they're putting more Ducktape tales to the ultimate test. 15 00:01:02,220 --> 00:01:03,220 Oh it's for real. 16 00:01:06,220 --> 00:01:10,220 That was a pretty cool boat. 17 00:01:10,220 --> 00:01:17,220 In my mind's eye, a chasm, wide and deep, spanned only by Ducktape. 18 00:01:17,220 --> 00:01:18,220 A Ducktape bridge. 19 00:01:18,220 --> 00:01:21,220 That you and I can walk across. 20 00:01:21,220 --> 00:01:22,220 Sounds dangerous. 21 00:01:22,220 --> 00:01:23,220 Exactly! 22 00:01:35,220 --> 00:01:47,220 We don't before we decide on a final design, I think we should run Ducktape through its paces in the shop downstairs. 23 00:01:47,220 --> 00:01:50,220 A series of bench tests if you will. 24 00:01:50,220 --> 00:01:51,220 Okay. 25 00:01:54,220 --> 00:01:59,220 Look, obviously we're already pretty familiar with the awesome power of Ducktape. 26 00:01:59,220 --> 00:02:03,220 But if we're gonna make a bridge out of this stuff that safely suspends us above a castle, 27 00:02:03,220 --> 00:02:05,220 we're gonna have to determine a couple of things right up front. 28 00:02:05,220 --> 00:02:09,220 One, how much are we gonna need to support our body weight? 29 00:02:09,220 --> 00:02:13,220 Two, how are we gonna anchor the Ducktape to the sides of that chasm? 30 00:02:13,220 --> 00:02:16,220 That's what we're about to test and figure out. 31 00:02:19,220 --> 00:02:21,220 So where do you want to begin? 32 00:02:21,220 --> 00:02:25,220 Let's say we stretch out a single strand and see what it takes to break it. 33 00:02:25,220 --> 00:02:26,220 Sounds good, let's do it. 34 00:02:26,220 --> 00:02:30,220 Step one, a single strand strengths test. 35 00:02:30,220 --> 00:02:34,220 Today the role of our strength testing device will be played by a digital force gauge. 36 00:02:34,220 --> 00:02:41,220 I will pull on the Ducktape with this hook and right here it'll tell me how many pounds of force it takes before it breaks. 37 00:02:44,220 --> 00:02:46,220 Ten, twelve, thirteen. 38 00:02:46,220 --> 00:02:48,220 This is killing me. 39 00:02:48,220 --> 00:02:52,220 I don't mean it's hurting, it's just the indisimation. 40 00:02:52,220 --> 00:02:54,220 Sixty-three. 41 00:02:54,220 --> 00:02:55,220 Oh! 42 00:02:55,220 --> 00:02:59,220 Sixty-seven point three pounds of force to break it. 43 00:02:59,220 --> 00:03:01,220 Wow, that's more than I would have thought. 44 00:03:01,220 --> 00:03:03,220 Me too. 45 00:03:03,220 --> 00:03:09,220 They might be well acquainted with Ducktape's awesome qualities, but it still has the power to surprise. 46 00:03:09,220 --> 00:03:13,220 I didn't realize the Ducktape was gonna be that strong. 47 00:03:13,220 --> 00:03:23,220 That means that we could in fact build a bridge in theory with like three or four strips of Ducktape and nothing else. 48 00:03:24,220 --> 00:03:30,220 That little laugh means Jamie's already plotting to put that theory to the test. 49 00:03:30,220 --> 00:03:33,220 I want to stretch four across and sit on it. 50 00:03:33,220 --> 00:03:34,220 And sit on it? 51 00:03:34,220 --> 00:03:35,220 Yeah. 52 00:03:35,220 --> 00:03:43,220 Okay, one strand snaps at sixty-seven pounds, so four strands should hold a one hundred and eighty pound Heinemann, right? 53 00:03:43,220 --> 00:03:45,220 You ready to sit on this? 54 00:03:45,220 --> 00:03:46,220 I am. 55 00:03:46,220 --> 00:03:48,220 Alright, go for it. 56 00:03:50,220 --> 00:03:52,220 Slow down, slow down. 57 00:03:52,220 --> 00:03:54,220 So you're hanging? 58 00:03:54,220 --> 00:03:55,220 I am. 59 00:03:55,220 --> 00:03:57,220 I would say I'm off the ground. 60 00:03:57,220 --> 00:03:59,220 That's pretty stunning. 61 00:03:59,220 --> 00:04:06,220 With a combined load bearing capacity of more than two hundred and sixty pounds, the four strands support Jamie. 62 00:04:06,220 --> 00:04:09,220 But they're drooping more than his mustache. 63 00:04:09,220 --> 00:04:11,220 You're drooping like six feet over thirty feet. 64 00:04:11,220 --> 00:04:13,220 That's quite a bit. 65 00:04:13,220 --> 00:04:19,220 Yep, it's supporting me, but I have to say four pieces of Ducktape does not a bridge make. 66 00:04:20,220 --> 00:04:26,220 We're now going to try a strand of eight pieces of Ducktape and see if we get less droop. 67 00:04:26,220 --> 00:04:30,220 We'll doubling the amount of tape have the droop factor. 68 00:04:30,220 --> 00:04:32,220 You ready for a sitting on eight pieces? 69 00:04:32,220 --> 00:04:33,220 I'm ready. 70 00:04:33,220 --> 00:04:40,220 With Jamie sitting pretty on his perch, Adam runs a tape over the tape and the news isn't good. 71 00:04:40,220 --> 00:04:42,220 Four feet of droop instead of five feet of droop. 72 00:04:42,220 --> 00:04:49,220 You would think that that doubling of the quantity of Ducktape would, what, cut the amount of droop in half, but it didn't. 73 00:04:49,220 --> 00:04:54,220 Hopes of a successful bridge are second until Adam hits on an idea. 74 00:04:54,220 --> 00:05:00,220 He lays five eight layer strands side by side, then weaves a little magic. 75 00:05:00,220 --> 00:05:08,220 I'm trying to tease out some structural qualities in Ducktape that will eventually yield for me, this is my goal, a bridge that I can actually walk on. 76 00:05:09,220 --> 00:05:12,220 And it seems they might have finally found their footing. 77 00:05:12,220 --> 00:05:15,220 It doesn't feel that bad. You want to try it? 78 00:05:15,220 --> 00:05:17,220 No, I can see. 79 00:05:17,220 --> 00:05:23,220 With his weight distributed across all five strands, the extreme sag might be solved. 80 00:05:23,220 --> 00:05:26,220 Yeah, it looks good. With handrails, you could walk right across this thing. 81 00:05:26,220 --> 00:05:29,220 And with five of those, you've got a good safety factor. 82 00:05:29,220 --> 00:05:34,220 This stuff is amazing. You know, we might just be able to build a bridge out of this. 83 00:05:34,220 --> 00:05:36,220 I think you're right. 84 00:05:36,220 --> 00:05:38,220 Look, ma, no hands. 85 00:05:44,220 --> 00:05:47,220 Alright, so last time we built a cannon at a Ducktape. What are we doing this time? 86 00:05:47,220 --> 00:05:54,220 So along with road flares, jumper cables, devices to smash out your windows, there's one more very important tool you should be carrying along in your car. 87 00:05:54,220 --> 00:05:56,220 Ducktape. 88 00:05:56,220 --> 00:06:01,220 Yeah, sure. If you get into a minor fender bender, you could usually hold things together until you get to the mechanic. 89 00:06:01,220 --> 00:06:02,220 Exactly. 90 00:06:02,220 --> 00:06:06,220 Now, I hate to ruin your party, but that's actually not a myth. It works. 91 00:06:06,220 --> 00:06:08,220 I mean, I've used Ducktape to fix my car in the past. 92 00:06:08,220 --> 00:06:11,220 Well, I think the myth lies in the extreme. 93 00:06:11,220 --> 00:06:13,220 Just what are you getting at? 94 00:06:13,220 --> 00:06:15,220 I have some plans for you guys. 95 00:06:18,220 --> 00:06:23,220 Everyone knows a few strips of Ducktape can mend a minor automotive mishap. 96 00:06:23,220 --> 00:06:28,220 But can it really cure the most extreme car catastrophe? 97 00:06:28,220 --> 00:06:33,220 I have a plan. I'm going to tear apart a car and see if you can put it back together with Ducktape. 98 00:06:33,220 --> 00:06:36,220 Good plan. Sounds like a challenge to me. 99 00:06:36,220 --> 00:06:38,220 Oh, you don't even know. 100 00:06:38,220 --> 00:06:46,220 Putting the car back together is only part of the challenge. It will also have to stay in one piece at top speed. 101 00:06:46,220 --> 00:06:52,220 And so yet another unfortunate automobile enters the driveway of doom. 102 00:06:52,220 --> 00:06:56,220 Alright, time to wreck this car. 103 00:06:56,220 --> 00:07:00,220 This little adventure is really going to put Ducktape to the test. 104 00:07:00,220 --> 00:07:04,220 The boys are going to have to put this car back together after I destroy it. 105 00:07:04,220 --> 00:07:10,220 Now, they think it's going to be easy. I think they are underestimating my destructive powers. 106 00:07:10,220 --> 00:07:15,220 To really test the tape, she wants that car in as many pieces as possible, 107 00:07:15,220 --> 00:07:18,220 and has developed a disturbing appetite for destruction. 108 00:07:18,220 --> 00:07:23,220 I love destroying cars, breaking glass, 109 00:07:23,220 --> 00:07:27,220 crunching metal. It's awesome. 110 00:07:27,220 --> 00:07:35,220 But when it comes to raising the roof, even Carrie's dark side is defeated. 111 00:07:35,220 --> 00:07:39,220 There's actually tools made for this. I think I have some friends that could help. 112 00:07:39,220 --> 00:07:44,220 Q, a crew of San Frans Finest, 113 00:07:44,220 --> 00:07:48,220 ready and willing to help Carrie complete her deranged dismantling. 114 00:07:48,220 --> 00:07:55,220 Just in time. That is awesome. What is that? 115 00:07:55,220 --> 00:07:59,220 These are hydraulic cutting tools, and this is a cutter-spreader combination. 116 00:07:59,220 --> 00:08:02,220 These are cutters, and we're going to use them to cut apart the vehicle. 117 00:08:02,220 --> 00:08:07,220 These tools are designed to quickly open up vehicles and free accident victims. 118 00:08:07,220 --> 00:08:10,220 This makes my tools look silly. 119 00:08:10,220 --> 00:08:17,220 Using hydraulic power, the blades bite down with more than 12,000 pounds of force. 120 00:08:17,220 --> 00:08:20,220 I love it! 121 00:08:20,220 --> 00:08:24,220 Thank you guys so much. This is really going to ruin their day. 122 00:08:24,220 --> 00:08:26,220 Great. 123 00:08:26,220 --> 00:08:28,220 Bye, guys. 124 00:08:28,220 --> 00:08:30,220 Grant and Tori have no idea what they're in for. 125 00:08:30,220 --> 00:08:39,220 It took me a sledgehammer, a crowbar, a grinder, a saw, and four big firemen to destroy this car. 126 00:08:39,220 --> 00:08:42,220 See what they can do with duct tape to put it back together. 127 00:08:42,220 --> 00:08:44,220 Boys! 128 00:08:44,220 --> 00:08:49,220 Oh, my God. You went to town on this car. 129 00:08:49,220 --> 00:08:51,220 It's a convertible now. 130 00:08:51,220 --> 00:08:53,220 Here are your tools. 131 00:08:53,220 --> 00:09:01,220 That is an impressive amount of damage to this car. 132 00:09:01,220 --> 00:09:10,220 I mean, I've heard of duct tape being used to, like, you know, tape on a bumper or a fix of windshield or, you know, wrap a hose. 133 00:09:10,220 --> 00:09:13,220 But you know what? Not all at once. 134 00:09:13,220 --> 00:09:15,220 They're in a sticky situation. 135 00:09:15,220 --> 00:09:17,220 Carrie's done her job real well. 136 00:09:17,220 --> 00:09:20,220 Carrie has cut some key structural points in the car. 137 00:09:20,220 --> 00:09:24,220 Now, it is important that we get it back to that strength because let's face it. 138 00:09:24,220 --> 00:09:29,220 This is what's going to hold the doors on, the roof on top, and keep the windshield in place. 139 00:09:29,220 --> 00:09:32,220 This is really where the duct tape is going to have to prove itself. 140 00:09:32,220 --> 00:09:39,220 Soon the air is filled with the sound of ripping duct tape and Carrie's thoughtful musings on the material. 141 00:09:39,220 --> 00:09:41,220 This duct tape is essentially made of three layers. 142 00:09:41,220 --> 00:09:44,220 We have a vinyl layer on the outside that contributes to its waterproofing qualities. 143 00:09:44,220 --> 00:09:50,220 A fabric structure that gives it its core strength and a natural rubber pressure-sensitive adhesive. 144 00:09:50,220 --> 00:09:55,220 Generally comes in black or silver and is about 1 in 7th, 8th inches. 145 00:09:55,220 --> 00:10:00,220 It's known as duct tape, but also it can be called duct tape, hurricane tape, gaffers tape, 146 00:10:00,220 --> 00:10:03,220 100-mile-an-hour tape, tank tape, and riggers tape. 147 00:10:03,220 --> 00:10:05,220 It does just part of the team. 148 00:10:05,220 --> 00:10:08,220 So far, this team member is holding up its end. 149 00:10:08,220 --> 00:10:13,220 Although replacing the windshield calls for some classic mythbusters problem-solving. 150 00:10:13,220 --> 00:10:15,220 Well, I found this piece from the fender. 151 00:10:15,220 --> 00:10:20,220 I think I'm just going to tape it up until it's strong enough and then attach the windows to that. 152 00:10:20,220 --> 00:10:23,220 Now, what are you going to do about the two separate pieces of glass? 153 00:10:23,220 --> 00:10:28,220 Since Carrie busted out the windshield, I was thinking we could replace it by using the windows and the doors. 154 00:10:28,220 --> 00:10:29,220 What do you think? 155 00:10:29,220 --> 00:10:32,220 Dude, that is so MacGyver. I love it. 156 00:10:33,220 --> 00:10:38,220 The carved-up car is coming back to life, much to Carrie's surprise. 157 00:10:38,220 --> 00:10:42,220 I can't believe how quickly you're getting this car together. 158 00:10:42,220 --> 00:10:45,220 Just wait. We've made a few improvements. 159 00:10:45,220 --> 00:10:47,220 Is that a window from the door? 160 00:10:47,220 --> 00:10:48,220 Yep. 161 00:10:48,220 --> 00:10:50,220 Don't drive too fast. 162 00:10:50,220 --> 00:10:54,220 With the rebuild complete, Carrie can't hide her admiration. 163 00:10:54,220 --> 00:10:59,220 I'm going to drive this car to give the duct tape car a true test. 164 00:10:59,220 --> 00:11:03,220 The guys, if they drove the car, would drive somewhat gingerly because they don't want to see their work fail. 165 00:11:03,220 --> 00:11:05,220 They don't want to see the doors fly off. 166 00:11:05,220 --> 00:11:07,220 I, on the other hand, do. 167 00:11:07,220 --> 00:11:11,220 I'm the wrecking ball in this situation and I want to see things fly. 168 00:11:11,220 --> 00:11:15,220 Later, the highs and lows of a bouncy bridge. 169 00:11:15,220 --> 00:11:19,220 And next, can Carrie demolish the duct tape car? 170 00:11:20,220 --> 00:11:24,220 CARRRY TORI 171 00:11:26,220 --> 00:11:31,220 Carrie Tori and Grant's duct tape car fix is ready for the ultimate test. 172 00:11:31,220 --> 00:11:34,220 Sorry, I might have gotten a little carried away. Hey now. 173 00:11:34,220 --> 00:11:39,220 And so it's off to a place where the Mythbusters have performed many crimes against inanity. 174 00:11:39,220 --> 00:11:41,220 It took you so long. 175 00:11:41,220 --> 00:11:45,220 What we're going to do now is set up a course here at the Alameda runway. 176 00:11:45,220 --> 00:11:57,220 Start, go through a little less curve, around a turn, hairpin turn, and then through a bump, a bump, a bump, and then a really tight turn. 177 00:11:57,220 --> 00:12:03,220 The idea here is to subject the car to as much stress as possible in the form of G-Force. 178 00:12:03,220 --> 00:12:09,220 While old lead foot Byron can't wait to get going, her passenger has one or two reservations. 179 00:12:09,220 --> 00:12:14,220 I have total faith that this duct tape is going to keep this car together as we drive over this obstacle course. 180 00:12:14,220 --> 00:12:18,220 What I do not have faith in is Carrie Byron's driving ability. 181 00:12:20,220 --> 00:12:22,220 This should be interesting to say the least. 182 00:12:24,220 --> 00:12:28,220 Last time, duct tape was able to give a car a huge amount of hang time. 183 00:12:29,220 --> 00:12:32,220 But can it glue a moving vehicle? 184 00:12:32,220 --> 00:12:34,220 All stations ready? 185 00:12:36,220 --> 00:12:40,220 This is duct tape car on the duct tape classic Grand Prix. 186 00:12:40,220 --> 00:12:42,220 Lap one, go ahead. 187 00:12:42,220 --> 00:12:46,220 Okay, here we go. Car number 17 with Byron at the wheel. 188 00:12:46,220 --> 00:12:48,220 Into turn number one, Le Mans. 189 00:12:48,220 --> 00:12:52,220 Carrie drives as though the accelerator is duct tape to the floor. 190 00:12:52,220 --> 00:12:56,220 Now in turn number three, Sylvester. 191 00:12:56,220 --> 00:13:02,220 Through her crazy cornering, the car is subjected to tremendous G-Force. 192 00:13:02,220 --> 00:13:05,220 The bumps, Indianapolis, and back to the beginning. 193 00:13:05,220 --> 00:13:07,220 We're going to die. 194 00:13:08,220 --> 00:13:13,220 Okay, lap number four, go, go, go, go. 195 00:13:13,220 --> 00:13:17,220 I got to say right now, the car is looking perfect. 196 00:13:17,220 --> 00:13:19,220 That's five laps so far. You are looking great. 197 00:13:19,220 --> 00:13:22,220 Even your hood detail is still on. 198 00:13:23,220 --> 00:13:27,220 Carrie's doing between 40 and 60 miles per hour. 199 00:13:27,220 --> 00:13:36,220 In a car with no structural integrity, everything from the roof to the doors is being held on only by tape. 200 00:13:36,220 --> 00:13:39,220 One wheel in the air. Take it easy there, Carrie. 201 00:13:44,220 --> 00:13:45,220 Last lap. 202 00:13:45,220 --> 00:13:47,220 And for the checkered class. 203 00:13:47,220 --> 00:13:50,220 Please, I think I would have. It's a duct tape classic. 204 00:13:51,220 --> 00:13:55,220 Why do you know the duct tape car has stayed the course? 205 00:13:56,220 --> 00:14:00,220 All right, that was ten laps. 206 00:14:01,220 --> 00:14:03,220 You know what? It actually made it. 207 00:14:03,220 --> 00:14:05,220 We survived. 208 00:14:06,220 --> 00:14:11,220 Airpan turns, S-curves, bumps, I go over sandbags, I get air. 209 00:14:11,220 --> 00:14:13,220 Still, duct tape is holding up. 210 00:14:13,220 --> 00:14:15,220 That was on flat ground. 211 00:14:15,220 --> 00:14:17,220 Now it's time to take it to the next level. 212 00:14:17,220 --> 00:14:19,220 We're sending it off-road. 213 00:14:19,220 --> 00:14:22,220 And in addition, it looks like it's going to rain. 214 00:14:25,220 --> 00:14:29,220 Maybe getting off the beaten track will bring this myth unstuck. 215 00:14:30,220 --> 00:14:32,220 Mad Maxine floors it. 216 00:14:32,220 --> 00:14:34,220 Over there, it's a brush. 217 00:14:37,220 --> 00:14:39,220 Ah! 218 00:14:42,220 --> 00:14:48,220 After several soggy minutes thumping and bumping, this duct tape myth suddenly stalls. 219 00:14:49,220 --> 00:14:50,220 Car's dead. 220 00:14:52,220 --> 00:14:56,220 Only on MythBusters. Everyone's worried about the duct tape. 221 00:14:56,220 --> 00:15:00,220 But the only thing that's busted is the engine. The tape hasn't budged. 222 00:15:00,220 --> 00:15:03,220 The G-Force alone should have torn that thing apart. 223 00:15:03,220 --> 00:15:05,220 But look at that. The hood ornament did not fall off. 224 00:15:05,220 --> 00:15:09,220 I gotta say, I think we're going to have to call this one confirmed. 225 00:15:09,220 --> 00:15:11,220 Absolutely confirmed. 226 00:15:11,220 --> 00:15:13,220 Totally confirmed. 227 00:15:20,220 --> 00:15:24,220 Jamie and Adam have worked out the amount of duct tape they'll need to build a bridge. 228 00:15:24,220 --> 00:15:30,220 But before they decide on a design, they need to know exactly what space they'll be spanning. 229 00:15:30,220 --> 00:15:34,220 This is our chasm. 108 feet from this wall to that wall. 230 00:15:34,220 --> 00:15:37,220 It is this distance that we have to span. 231 00:15:38,220 --> 00:15:41,220 After sizing up the gulp-inducing gap... 232 00:15:42,220 --> 00:15:45,220 Inside is 104 and 2 inches. 233 00:15:46,220 --> 00:15:47,220 Awesome. 234 00:15:47,220 --> 00:15:50,220 They return to base for the plan to span. 235 00:15:51,220 --> 00:15:52,220 Alright. 236 00:15:52,220 --> 00:15:54,220 How do you want to do this thing? 237 00:15:54,220 --> 00:15:56,220 Well, I figured this is basically a rope bridge. 238 00:15:56,220 --> 00:15:59,220 So let's make a bunch of rope out of duct tape. 239 00:16:00,220 --> 00:16:03,220 Okay, I can see that. We make a bunch of ropey strands. 240 00:16:03,220 --> 00:16:06,220 We could bind a bunch of them together to make the floor. 241 00:16:06,220 --> 00:16:10,220 And then another couple of probably thick strands for a railing. 242 00:16:10,220 --> 00:16:12,220 That would actually be pretty stable. 243 00:16:12,220 --> 00:16:17,220 And then we can have some big ones along the side that are stretched hot to make it stable. 244 00:16:18,220 --> 00:16:22,220 The small scale test showed just five strands of duct tape. 245 00:16:22,220 --> 00:16:26,220 Eight layers thick can support their weight without major droop. 246 00:16:26,220 --> 00:16:30,220 But just to be safe, they'll make their walkway ten layers thick. 247 00:16:30,220 --> 00:16:33,220 Adam's anxious to speed up the taping process. 248 00:16:33,220 --> 00:16:39,220 I'm about to construct what I hope will be the ultimate automatic duct taping machine. 249 00:16:40,220 --> 00:16:43,220 Look out. Adam's just itching to invent. 250 00:16:44,220 --> 00:16:48,220 Step one, some cylinders which fit together, Russian doll style. 251 00:16:50,220 --> 00:16:51,220 Alright. 252 00:16:51,220 --> 00:16:53,220 Attached to a metal strut. 253 00:16:53,220 --> 00:16:54,220 Okay. 254 00:16:54,220 --> 00:16:56,220 Which is welded to a support frame. 255 00:16:56,220 --> 00:16:57,220 It's looking great. 256 00:16:57,220 --> 00:17:01,220 Just add duct tape and, behold, the ductomatic. 257 00:17:01,220 --> 00:17:04,220 Dispensing ten strands simultaneously. 258 00:17:04,220 --> 00:17:05,220 Wow. 259 00:17:05,220 --> 00:17:06,220 It's a new kind of duct tape. 260 00:17:06,220 --> 00:17:07,220 Duct tape cables. 261 00:17:08,220 --> 00:17:10,220 Honestly, at this point, I trust my life to that. 262 00:17:10,220 --> 00:17:11,220 Hey, check it out. 263 00:17:11,220 --> 00:17:15,220 My ten roll single pull duct tape cable maker. 264 00:17:15,220 --> 00:17:16,220 Now that seems to work. 265 00:17:16,220 --> 00:17:21,220 I mean, a lot of different ways you could do it, but six or one half dozen the other, huh? 266 00:17:21,220 --> 00:17:22,220 Yeah. 267 00:17:24,220 --> 00:17:30,220 With Adam basking in Jamie's effusive admiration, they measure out the required distance. 268 00:17:30,220 --> 00:17:33,220 Okay, that's 104 feet to right here. 269 00:17:33,220 --> 00:17:37,220 And get down to some serious bridge building, starting with the floor. 270 00:17:37,220 --> 00:17:39,220 Looks like we're making the world's biggest sweater. 271 00:17:40,220 --> 00:17:41,220 Yeah. 272 00:17:42,220 --> 00:17:43,220 Whoo. 273 00:17:44,220 --> 00:17:45,220 Hold on, hold on. 274 00:17:47,220 --> 00:17:48,220 That's a workout. 275 00:17:52,220 --> 00:17:53,220 Yeah. 276 00:17:54,220 --> 00:17:55,220 That's number five. 277 00:17:55,220 --> 00:17:56,220 Let's bind them together. 278 00:17:57,220 --> 00:18:03,220 Those five strands, each one, ten layers thick, are stuck together to form a narrow walkway. 279 00:18:03,220 --> 00:18:07,220 It may not look like much, but it might just save my life. 280 00:18:09,220 --> 00:18:13,220 Next, Jamie produces a pair of handrails with a twist. 281 00:18:14,220 --> 00:18:15,220 Perfect. 282 00:18:15,220 --> 00:18:17,220 The rope-like cable should give them a good grip. 283 00:18:17,220 --> 00:18:21,220 I like the way that it seems kind of nice to hold onto. 284 00:18:21,220 --> 00:18:22,220 Yeah, I totally agree. 285 00:18:22,220 --> 00:18:25,220 That's ten strands. 286 00:18:25,220 --> 00:18:30,220 With the walkway, handrails, and stabilizing rails complete, they're all set. 287 00:18:31,220 --> 00:18:34,220 That's the great thing about a duct tape bridge. 288 00:18:34,220 --> 00:18:35,220 It's so portable. 289 00:18:35,220 --> 00:18:37,220 Just fold and roll. 290 00:18:37,220 --> 00:18:38,220 That's not bad. 291 00:18:38,220 --> 00:18:40,220 Shall we go build a bridge with it? 292 00:18:40,220 --> 00:18:41,220 I think so. 293 00:18:41,220 --> 00:18:42,220 Okay. 294 00:18:46,220 --> 00:18:49,220 It's the Mythbusters second duct tape special. 295 00:18:53,220 --> 00:18:55,220 Alright, Carrie, why do you look so happy? 296 00:18:55,220 --> 00:18:57,220 Because I love the next duct tape myth. 297 00:18:57,220 --> 00:18:58,220 And what is that? 298 00:18:58,220 --> 00:19:00,220 Well, this was sent in by tons of viewers. 299 00:19:00,220 --> 00:19:03,220 It's that you can stop a car using only duct tape. 300 00:19:03,220 --> 00:19:04,220 What? 301 00:19:04,220 --> 00:19:07,220 Well, the beauty of this is there's two parts of this myth. 302 00:19:07,220 --> 00:19:09,220 The first one is based on a practical joke. 303 00:19:09,220 --> 00:19:13,220 That you can duct tape a car to a telephone pole, and it won't go anywhere. 304 00:19:13,220 --> 00:19:17,220 Technically not stopping a car, but actually preventing it from moving. 305 00:19:17,220 --> 00:19:18,220 Well, technically. 306 00:19:18,220 --> 00:19:21,220 But the second part of this is definitely stopping a car. 307 00:19:21,220 --> 00:19:24,220 It's that you can use one roll of duct tape, build a barrier, 308 00:19:24,220 --> 00:19:27,220 and catch a car going 60 miles an hour. 309 00:19:27,220 --> 00:19:29,220 Now that one I like. 310 00:19:29,220 --> 00:19:30,220 Right? 311 00:19:30,220 --> 00:19:31,220 Right. 312 00:19:31,220 --> 00:19:35,220 The first part of this myth is a prank par excellence. 313 00:19:35,220 --> 00:19:39,220 A devious dude duct tapes his friend's car to a pole. 314 00:19:39,220 --> 00:19:43,220 The victim steps on the gas, but can't escape the grip of the tape. 315 00:19:43,220 --> 00:19:47,220 We all know if we use enough duct tape, you can pretty much stick anything to a pole. 316 00:19:47,220 --> 00:19:50,220 I think the whole point of this is see how we can keep the car stationary 317 00:19:50,220 --> 00:19:52,220 with the least amount of duct tape. 318 00:19:52,220 --> 00:19:56,220 All they need for this one is a car and a convenient pole. 319 00:19:56,220 --> 00:19:58,220 We're not supposed to destroy this one. 320 00:19:58,220 --> 00:20:02,220 That is the last time we car pull together. 321 00:20:02,220 --> 00:20:09,220 Thanks to Adam's earlier test, the team already knows the breaking point of a single strand of tape. 322 00:20:09,220 --> 00:20:13,220 67.3 pounds of force to break it. 323 00:20:13,220 --> 00:20:16,220 All they have to do is determine the car's pulling power. 324 00:20:16,220 --> 00:20:20,220 And work out how much tape it'll take to counter that force. 325 00:20:20,220 --> 00:20:24,220 What we're going to do is get the force meter, strap it to the car, and attach it to the pole. 326 00:20:24,220 --> 00:20:26,220 Then Grant's going to drive forward. 327 00:20:26,220 --> 00:20:29,220 At the point it stops moving forward. 328 00:20:29,220 --> 00:20:32,220 That is how much force this car pulls with. 329 00:20:32,220 --> 00:20:35,220 Okay, that's 1,300 pounds. 330 00:20:35,220 --> 00:20:37,220 It maxed at 1,300. 331 00:20:37,220 --> 00:20:38,220 Let's do the math. 332 00:20:38,220 --> 00:20:40,220 The car pulls 1,300 pounds. 333 00:20:40,220 --> 00:20:43,220 One strand of duct tape breaks at 67 pounds. 334 00:20:43,220 --> 00:20:50,220 So in theory, wrapping the car 20 times should be just enough to stop it driving away. 335 00:20:50,220 --> 00:20:52,220 I think we just go for 20 and see if it'll work. 336 00:20:52,220 --> 00:20:55,220 You know, I think this duct tape might actually stop this car. 337 00:20:55,220 --> 00:20:59,220 Tori and Carrie play a prank for science, you understand. 338 00:20:59,220 --> 00:21:02,220 Hey you kids, what are you doing to my car? 339 00:21:04,220 --> 00:21:12,220 I have the sneaking suspicion that there are going to be prankster victims everywhere that are going to be blaming mythbusters for this myth being true. 340 00:21:12,220 --> 00:21:20,220 And so we say, in the vain hope of pranksters paying the slightest attention, please don't try this at home. 341 00:21:20,220 --> 00:21:21,220 What's this? 342 00:21:21,220 --> 00:21:23,220 In case pole falls on your head. 343 00:21:23,220 --> 00:21:26,220 Okay, Grant, time to rev up this myth. 344 00:21:26,220 --> 00:21:28,220 Wow. 345 00:21:28,220 --> 00:21:29,220 Wow. 346 00:21:29,220 --> 00:21:30,220 It's 100 RPM. 347 00:21:30,220 --> 00:21:31,220 It's 2,000. 348 00:21:31,220 --> 00:21:37,220 We're getting a few breaks there, but it's actually holding the car in place. 349 00:21:37,220 --> 00:21:38,220 Tori! 350 00:21:39,220 --> 00:21:41,220 Woohoo! 351 00:21:43,220 --> 00:21:45,220 He stopped the car, we're catching it. 352 00:21:45,220 --> 00:21:46,220 Yes! 353 00:21:46,220 --> 00:21:48,220 That's incredible. 354 00:21:48,220 --> 00:21:50,220 With a sweat please, let's talk about this. 355 00:21:50,220 --> 00:21:52,220 I think it's confirmed. 356 00:21:54,220 --> 00:21:59,220 Just five rolls of tape were enough to keep the car in its pole position. 357 00:21:59,220 --> 00:22:01,220 One strand broke, that was it. 358 00:22:01,220 --> 00:22:02,220 Look at that. 359 00:22:02,220 --> 00:22:05,220 I cannot believe this myth is confirmed. 360 00:22:05,220 --> 00:22:06,220 Confirmed! 361 00:22:06,220 --> 00:22:07,220 Woohoo! 362 00:22:07,220 --> 00:22:08,220 Yeah! 363 00:22:08,220 --> 00:22:09,220 Confirmed! 364 00:22:09,220 --> 00:22:10,220 Woohoo! 365 00:22:24,220 --> 00:22:28,220 Adam and Jamie are rolling out their duct tape bridge. 366 00:22:28,220 --> 00:22:30,220 These five strips of duct tape are our bridge. 367 00:22:30,220 --> 00:22:34,220 We've got our walkway, we've got two hand rails and two stabilizing rails. 368 00:22:34,220 --> 00:22:37,220 Why are we hooking them up to these trucks? 369 00:22:37,220 --> 00:22:41,220 Well we think this stuff is going to stretch, and if it stretches, it droops, and we can't 370 00:22:41,220 --> 00:22:42,220 have that. 371 00:22:42,220 --> 00:22:46,720 So we're going to pre-assemble it up here on the trucks and pre-stretch it before we put 372 00:22:46,720 --> 00:22:48,220 it across the span. 373 00:22:48,220 --> 00:22:54,420 They'll attach the walkway, hand rails and stabilizing ropes to heavy duty steel anchor 374 00:22:54,420 --> 00:22:55,420 points. 375 00:22:55,420 --> 00:23:00,720 When it comes time to walk, those frames will anchor either end of the bridge and help keep 376 00:23:00,720 --> 00:23:03,220 the duct tape under tension. 377 00:23:03,220 --> 00:23:07,220 Stretching the duct tape should prevent any sudden sag. 378 00:23:07,220 --> 00:23:14,220 With the bridge suspended between the pickups, Adam and Jamie go through their pre-walk stretching 379 00:23:14,220 --> 00:23:15,220 routine. 380 00:23:15,220 --> 00:23:19,220 I think this is going to work! 381 00:23:26,220 --> 00:23:32,220 As he pulls, taught the tape, Adam ponders life as the yin to Jamie's yang. 382 00:23:32,220 --> 00:23:36,720 People always wonder what it's like for me and Jamie to work together, and this is actually 383 00:23:36,720 --> 00:23:37,720 a really good example. 384 00:23:37,720 --> 00:23:41,620 You can see us both working on the bridge, we're not talking to each other, we actually 385 00:23:41,620 --> 00:23:45,620 haven't had very much of a discussion at all about what we're supposed to do, but we understand 386 00:23:45,620 --> 00:23:49,220 really clearly internally and we understand the other understands really clearly internally 387 00:23:49,220 --> 00:23:52,220 what is to be done, and we're just doing it. 388 00:23:52,220 --> 00:23:54,220 Getting hard, did it, Paul? 389 00:23:54,220 --> 00:23:55,220 Yep. 390 00:23:55,220 --> 00:23:56,220 Good. 391 00:23:56,220 --> 00:24:00,220 While Adam's been waxing lyrical, Jamie spotted a slight problem. 392 00:24:00,220 --> 00:24:03,220 Stretching this bridge is turning out to be a little trickier than we thought. 393 00:24:03,220 --> 00:24:07,220 The different components are stretching at different rates under different loads. 394 00:24:07,220 --> 00:24:11,220 We're just going to do the best we can and hope that it works. 395 00:24:15,220 --> 00:24:18,220 When they take their first few practice steps... 396 00:24:18,220 --> 00:24:21,220 That's kind of how you used to go to grade school, right? 397 00:24:21,220 --> 00:24:24,220 I don't want to do that. 398 00:24:24,220 --> 00:24:27,220 It's immediately clear they're going to need more tape. 399 00:24:27,220 --> 00:24:28,220 Oh my gosh. 400 00:24:28,220 --> 00:24:33,220 Yeah, I think we do want to add in some stringers between these things on the floor. 401 00:24:33,220 --> 00:24:37,220 Because you could be all like, whoa, good done, you're much more than me. 402 00:24:37,220 --> 00:24:38,220 Dude. 403 00:24:38,220 --> 00:24:41,220 Whoa, yeah, see, I... whoa. 404 00:24:41,220 --> 00:24:42,220 Whoa. 405 00:24:42,220 --> 00:24:43,220 Whoa. 406 00:24:43,220 --> 00:24:44,220 Whoa. 407 00:24:44,220 --> 00:24:45,220 Whoa. 408 00:24:45,220 --> 00:24:52,220 This is going to be terrifying. 409 00:24:52,220 --> 00:24:57,220 Duck tape crust ruts between the walkway and handrails will minimize wobble. 410 00:24:57,220 --> 00:25:02,220 And with those last-minute structural improvements, the bridge is ready to go. 411 00:25:02,220 --> 00:25:07,220 196 rolls of duck tape, almost 400 pounds of the stuff, 412 00:25:07,220 --> 00:25:10,220 and our bridge is pretty much ready to string across the chasm. 413 00:25:10,220 --> 00:25:14,220 Now, I've marked the midpoint here because, in my opinion, 414 00:25:14,220 --> 00:25:17,220 it's once we pass this point that I think we're home free. 415 00:25:17,220 --> 00:25:22,220 See, this point being the farthest from both ends is actually where this bridge could cause us the most trouble. 416 00:25:22,220 --> 00:25:27,220 And it could possibly turn turtle and flip us over when we get here. 417 00:25:27,220 --> 00:25:32,220 Getting the preassembled bridge across the chasm is a feat in itself. 418 00:25:32,220 --> 00:25:37,220 They lower one end into the dry dock, haul it 100 feet to the other side, 419 00:25:37,220 --> 00:25:41,220 then use some heavy machinery to do some heavy lifting, 420 00:25:41,220 --> 00:25:44,220 all without damaging the duck tape. 421 00:25:44,220 --> 00:25:47,220 It's one thing to see it on the ground. 422 00:25:47,220 --> 00:25:51,220 Quite another, watching it go up across the chasm. 423 00:25:51,220 --> 00:25:56,220 Not many people know that Jamie has actually performed surgery with a forklift. 424 00:25:56,220 --> 00:26:05,220 With the Edgar Points Lockdown, Adam and Jamie finally bridge the gap between duck tape fantasy and duck tape reality. 425 00:26:05,220 --> 00:26:07,220 You know what that is, my friend? 426 00:26:07,220 --> 00:26:09,220 That's a bridge. 427 00:26:09,220 --> 00:26:11,220 That is a bridge. 428 00:26:11,220 --> 00:26:13,220 Ha ha ha! 429 00:26:17,220 --> 00:26:23,220 It's always a good day for us when we're able to use tools and materials in ways for which they were never intended. 430 00:26:23,220 --> 00:26:31,220 And a duck tape bridge, well, I daresay the guy that invented this stuff had no intent whatsoever to use it to make bridges with. 431 00:26:31,220 --> 00:26:35,220 Will it work? There's only one way to find out. 432 00:26:38,220 --> 00:26:40,220 Don't try anything you've seen on the show at home. 433 00:26:40,220 --> 00:26:42,220 You're what you're called? Experts. 434 00:26:44,220 --> 00:26:49,220 Just five rolls of duck tape can keep a car parked. 435 00:26:49,220 --> 00:26:55,220 Now Grant, Tori and Carrie want to supersize this automotive myth. 436 00:26:55,220 --> 00:26:59,220 How crazy is this myth that you can catch a car using a single roll of duck tape? 437 00:26:59,220 --> 00:27:01,220 Yeah, that does seem a little ridiculous. 438 00:27:01,220 --> 00:27:04,220 But I mean, you saw how well it held the car together when you were driving around like a maniac. 439 00:27:04,220 --> 00:27:07,220 Maybe we just wrap it around two telephone poles. 440 00:27:07,220 --> 00:27:11,220 Is this car going 60? I have seen crazier things on this show. Let's do it. 441 00:27:15,220 --> 00:27:21,220 Telephone poles are few and far between out here, so they'll use something a little more concrete. 442 00:27:21,220 --> 00:27:26,220 We're setting up K-Rail in an arrow formation. This is going to serve two purposes. 443 00:27:26,220 --> 00:27:35,220 One, it's going to hold our single roll of duck tape car catcher, as well as serve as a barrier for anything that may go out of control. 444 00:27:35,220 --> 00:27:42,220 The tape is wound around half inch thick steel rods, forming a single strand, five layers thick. 445 00:27:42,220 --> 00:27:48,220 And at this point, this fan fable doesn't just look dubious, it looks patently ridiculous. 446 00:27:48,220 --> 00:27:50,220 And then some. 447 00:27:50,220 --> 00:27:56,220 Duck tape can do a lot of things, but stopping a car at 60 miles an hour with one roll, I seriously doubt it. 448 00:27:56,220 --> 00:27:58,220 Ready to put your life on the line for science? 449 00:27:58,220 --> 00:28:01,220 Oh, I'm ready. Do we really need help at some? 450 00:28:01,220 --> 00:28:04,220 Yes. I'm going to go watch from a safe place. 451 00:28:06,220 --> 00:28:08,220 Okay, I'm ready. Are you in position? 452 00:28:08,220 --> 00:28:09,220 Stand by. 453 00:28:10,220 --> 00:28:13,220 Okay, this is single roll of duck tape. On your go. 454 00:28:13,220 --> 00:28:15,220 Okay, here we go. 455 00:28:15,220 --> 00:28:17,220 Tori hits the gas. 456 00:28:19,220 --> 00:28:22,220 The car hits the duck tape. 457 00:28:23,220 --> 00:28:26,220 And the myth hits the mechadam. 458 00:28:26,220 --> 00:28:29,220 Okay, so maybe you didn't need the helmets. 459 00:28:29,220 --> 00:28:32,220 I didn't even get up to 60 miles an hour. That was like 40. 460 00:28:32,220 --> 00:28:34,220 Oh well. I can't believe it, bro. 461 00:28:34,220 --> 00:28:36,220 We couldn't stop a car with a single roll of duck tape. 462 00:28:36,220 --> 00:28:39,220 All right, well, let's do what we do on this show and supersize it. 463 00:28:39,220 --> 00:28:43,220 Yeah, but I mean, we could build a wall 10 feet thick with duck tape, and that should stop a car. 464 00:28:43,220 --> 00:28:45,220 I mean, where do we draw the line? 465 00:28:45,220 --> 00:28:48,220 Well, that's kind of totally impractical. Let's see what we could do in a day. 466 00:28:48,220 --> 00:28:50,220 I mean, maybe 100 rolls of duck tape. 467 00:28:50,220 --> 00:28:53,220 All right, sounds great. So this is how we're going to do it. 468 00:28:53,220 --> 00:28:58,220 We have two pipes on either side here, and we're going to wrap the duck tape around it until it's thick enough 469 00:28:58,220 --> 00:29:01,220 to the point where we think it's going to stop the car. 470 00:29:04,220 --> 00:29:10,220 Back at Alameda, they've got a solid wall three inches thick, made from 100 rolls of duck tape. 471 00:29:10,220 --> 00:29:13,220 Well, that is one thick wall of duck tape. 472 00:29:16,220 --> 00:29:21,220 No one's willing to drive into this duck tape barrier, so they've got a plan. 473 00:29:21,220 --> 00:29:24,220 Now, in order to get the car to hit the barrier, we're going to tow it. 474 00:29:24,220 --> 00:29:29,220 And Tori's made a tow bar that's going to keep the car going in exactly the direction we want it to go. 475 00:29:29,220 --> 00:29:35,220 Now, at the bottom of the wall, right dead center is a steel plate, and connected to that plate is a pulley. 476 00:29:35,220 --> 00:29:40,220 The tow cable is going to go through that pulley so that as we tow the car towards the barrier, 477 00:29:40,220 --> 00:29:45,220 it's going to want to center right on that pulley and aim right for the wall. 478 00:29:45,220 --> 00:29:49,220 And just in case the cable comes loose, the car goes AWOL. 479 00:29:49,220 --> 00:29:51,220 How I've missed you so. 480 00:29:51,220 --> 00:29:54,220 Grants brought along an old friend. 481 00:29:55,220 --> 00:29:59,220 What this radio is doing is sending a signal to a receiver on the roof. 482 00:29:59,220 --> 00:30:02,220 The receiver on the roof controls a solenoid valve down here. 483 00:30:02,220 --> 00:30:05,220 A solenoid valve provides air to this cylinder. 484 00:30:05,220 --> 00:30:12,220 Now, when I turn this off, it actually takes the foot off the brake and allows the car to roll. 485 00:30:12,220 --> 00:30:17,220 When I go safe, it deploys the brake automatically and the car stops. 486 00:30:17,220 --> 00:30:20,220 With the car under Grants control, they're good to go. 487 00:30:20,220 --> 00:30:23,220 It's got the car right here. It's running. The brakes are on. 488 00:30:23,220 --> 00:30:27,220 All they need to do is flip this switch and it disengages the brakes and it's ready to go. 489 00:30:27,220 --> 00:30:36,220 And at that point, the tow vehicle will hit the accelerator, pulling that car down the track through the pulley system, headed straight for our wall duct tape. 490 00:30:36,220 --> 00:30:39,220 Alright, here we go. Carried brake is off. 491 00:30:39,220 --> 00:30:43,220 He's into it in three, two, one, go. 492 00:30:43,220 --> 00:30:50,220 Here it comes. 493 00:30:50,220 --> 00:30:55,220 The pickup picks up speed. 60 miles per hour. 494 00:30:55,220 --> 00:30:59,220 The test car hurdles towards a date with duct tape destiny. 495 00:30:59,220 --> 00:31:06,220 But at the last second, the experiment hits a bit of a snag. 496 00:31:06,220 --> 00:31:17,220 Somehow, the car hit everything except the wall of duct tape. What happened? 497 00:31:17,220 --> 00:31:25,220 I thought I saw the tow cable slip off of the guide car, but it was just a car length before the K-rails. 498 00:31:25,220 --> 00:31:30,220 The cable came through so late, Grant didn't even have time to hit the brakes. 499 00:31:30,220 --> 00:31:34,220 But there is some good news. The duct tape barrier is undamaged. 500 00:31:34,220 --> 00:31:42,220 So we are going to go back, we're going to take this failure, figure out how to fix it, and we're going to try it again because we are not giving up here. 501 00:31:42,220 --> 00:31:45,220 Looking great. Right on target. 502 00:31:45,220 --> 00:31:52,220 Still ahead, more duct tape demolition. 503 00:31:52,220 --> 00:31:58,220 Carrie, Tori and Grant want to see if a duct tape super barrier can stop a speeding car. 504 00:31:58,220 --> 00:32:05,220 But on their first attempt, failure was the option. 505 00:32:05,220 --> 00:32:11,220 We lost the connection between our tow vehicle and this vehicle and it veered to the right and crashed. 506 00:32:11,220 --> 00:32:15,220 Now what we're going to do is just put a rope clip on there so it's not going to come off. 507 00:32:15,220 --> 00:32:19,220 We've moved our breakaway line up to the tow vehicle itself. 508 00:32:19,220 --> 00:32:25,220 So if anything gets caught in the pulley, that breakaway cable will break away and everybody will be safe. 509 00:32:25,220 --> 00:32:29,220 They're not about to let rain dampen their quest for duct tape data. 510 00:32:29,220 --> 00:32:30,220 Here we go. 511 00:32:30,220 --> 00:32:36,220 The test car is soon taxing down the runway with Tori and Grant in hot pursuit. 512 00:32:36,220 --> 00:32:39,220 It's caught it, it's caught it, it's caught it. 513 00:32:46,220 --> 00:32:50,220 That was awesome. Yeah. 514 00:32:51,220 --> 00:32:57,220 Once again, the car caught the K-rail, but it also wiped out the duct tape wall. 515 00:32:57,220 --> 00:33:02,220 So it looks like the duct tape wall wasn't strong enough to stop the car. 516 00:33:02,220 --> 00:33:03,220 Dude, check it. 517 00:33:03,220 --> 00:33:08,220 Oh no, the wall is still together. 518 00:33:08,220 --> 00:33:10,220 I think we've got a problem. 519 00:33:10,220 --> 00:33:12,220 It just broke away from the K-rail. 520 00:33:12,220 --> 00:33:16,220 You know what, I think we better take a look at the high speed and see what happened. 521 00:33:16,220 --> 00:33:23,220 The duct tape wall stayed intact and it ripped it out of the K-rail. 522 00:33:23,220 --> 00:33:24,220 I can't believe that. 523 00:33:24,220 --> 00:33:27,220 I mean, that's a huge amount of shock that absorbed right there. 524 00:33:27,220 --> 00:33:31,220 While the guys are absorbing the shock of another failed test, 525 00:33:31,220 --> 00:33:35,220 the fact that the wall is still in one piece after being hit by the car 526 00:33:35,220 --> 00:33:39,220 means this myth has a definite whiff of plausibility. 527 00:33:40,220 --> 00:33:51,220 We're about to find out if Jamie and Adam can walk the walk on the world's most unusual bridge. 528 00:33:51,220 --> 00:33:55,220 We have spanned a hundred foot chasm with nothing but duct tape. 529 00:33:55,220 --> 00:34:01,220 Soon we will take that long walk into duct tape history. 530 00:34:02,220 --> 00:34:05,220 And just in case that walk becomes a plunge, 531 00:34:05,220 --> 00:34:10,220 a crane-mounted safety rig will turn them into human tignatas. 532 00:34:10,220 --> 00:34:12,220 I'm having a great time. 533 00:34:12,220 --> 00:34:14,220 Here's the thing about the safety system. 534 00:34:14,220 --> 00:34:17,220 I know that this yo-yo fall arrestor will save my life, 535 00:34:17,220 --> 00:34:21,220 but if this bridge should fail and it has to save my life, 536 00:34:21,220 --> 00:34:25,220 I'm going to be swinging, I'm going to fall and get pulled up short. 537 00:34:25,220 --> 00:34:28,220 Either way, it's going to be terrifying and it's going to hurt. 538 00:34:28,220 --> 00:34:31,220 It's not just pride that makes me not want this bridge to fail. 539 00:34:31,220 --> 00:34:33,220 Our small-scale tests say it should hold. 540 00:34:33,220 --> 00:34:37,220 We've done the math, everything should be fine, but it's duct tape. 541 00:34:37,220 --> 00:34:39,220 What are you going to do? 542 00:34:39,220 --> 00:34:42,220 Adam's a little lighter than Jamie, so he's going first. 543 00:34:42,220 --> 00:34:45,220 It'll be less stress on the tape. 544 00:34:45,220 --> 00:34:51,220 Just remember, if you hear a ripping sound, run really fast for the other side. 545 00:34:51,220 --> 00:34:52,220 Thanks for nothing. 546 00:34:52,220 --> 00:34:53,220 Good luck. 547 00:34:53,220 --> 00:34:54,220 Thanks. 548 00:34:55,220 --> 00:34:57,220 Here we go. 549 00:34:57,220 --> 00:35:04,220 Nearly 200 rolls of duct tape, a 50-foot drop, and one 175-pound myth buster. 550 00:35:04,220 --> 00:35:06,220 All for the glory. 551 00:35:06,220 --> 00:35:07,220 All right. 552 00:35:07,220 --> 00:35:09,220 Here we go. 553 00:35:11,220 --> 00:35:12,220 Oh. 554 00:35:17,220 --> 00:35:18,220 Oh. 555 00:35:19,220 --> 00:35:22,220 Hey, I don't mind saying I'm kind of freaked out. 556 00:35:22,220 --> 00:35:23,220 Oh. 557 00:35:23,220 --> 00:35:28,220 All right, it feels pretty solid and it's not hard for me to stay upright. 558 00:35:28,220 --> 00:35:30,220 The handles are working just great. 559 00:35:30,220 --> 00:35:33,220 My heart's beating about 175 times a minute though. 560 00:35:33,220 --> 00:35:34,220 Whoa. 561 00:35:36,220 --> 00:35:40,220 People walk on bridges like this every day? 562 00:35:40,220 --> 00:35:42,220 This is terrifying. 563 00:35:42,220 --> 00:35:46,220 Nearing the middle of the bridge, he enters the real danger zone. 564 00:35:46,220 --> 00:35:51,220 This is where the duct tapes most likely to fail and flip Adam into thin air. 565 00:35:51,220 --> 00:35:53,220 I'm passing halfway. 566 00:35:53,220 --> 00:35:57,220 So I've passed the danger of turtling. 567 00:35:57,220 --> 00:35:59,220 Oh, dude. 568 00:35:59,220 --> 00:36:01,220 This is rough. 569 00:36:03,220 --> 00:36:05,220 You've got about 10 feet to go. 570 00:36:05,220 --> 00:36:07,220 Oh, now it feels much more stable. 571 00:36:07,220 --> 00:36:09,220 Now I feel okay. 572 00:36:09,220 --> 00:36:14,220 Two and a half minutes after starting out, Adam sets foot on solid ground. 573 00:36:14,220 --> 00:36:16,220 Hey, good to see you. 574 00:36:16,220 --> 00:36:19,220 Oh, land feels good. 575 00:36:19,220 --> 00:36:21,220 Good land, good solid ground. 576 00:36:21,220 --> 00:36:23,220 It's another world first. 577 00:36:23,220 --> 00:36:29,220 He's just crossed a hundred foot chasm on a bridge made of duct tape. 578 00:36:29,220 --> 00:36:35,220 I wouldn't have called this, but I actually felt quite stable out at the center and for the first 15 or 20 feet. 579 00:36:35,220 --> 00:36:42,220 But the first third and the last third were really the roughest patch where the thing moves around a lot more than feels good. 580 00:36:42,220 --> 00:36:44,220 All right, your turn. 581 00:36:44,220 --> 00:36:48,220 Jamie steadies himself to make the return journey. 582 00:36:48,220 --> 00:36:50,220 Adam found it terrifying. 583 00:36:50,220 --> 00:36:56,220 I'm going to find it a lot worse than terrifying because I really don't like heights. 584 00:36:56,220 --> 00:37:00,220 His slightly heavier frame will put added stress on the duct tape. 585 00:37:00,220 --> 00:37:02,220 Oh, gosh. 586 00:37:02,220 --> 00:37:03,220 Here we go. 587 00:37:03,220 --> 00:37:09,220 And as soon as he puts his best foot forward, it's clear this won't be a smooth crossing. 588 00:37:09,220 --> 00:37:12,220 Now I know what it feels like to be a spider. 589 00:37:12,220 --> 00:37:16,220 Or maybe is it a bug in a spider web? 590 00:37:19,220 --> 00:37:22,220 That really is quite hairy. 591 00:37:25,220 --> 00:37:30,220 A third of the way across and Jamie's struggling to maintain his balance. 592 00:37:34,220 --> 00:37:42,220 This wiggling around is kind of something I don't want to be doing. 593 00:37:48,220 --> 00:37:50,220 Honestly, I'm not sure he's going to make it. 594 00:37:50,220 --> 00:37:54,220 Both Jamie and the bridge are teetering on the brink of failure. 595 00:37:54,220 --> 00:37:57,220 Now there's more ripped tape. 596 00:38:07,220 --> 00:38:13,220 Tori, Grant and Kerry are hoping it'll be third time lucky for their duct tape roadblock. 597 00:38:13,220 --> 00:38:17,220 It's the same setup with one or two heavy duty add-ons. 598 00:38:17,220 --> 00:38:23,220 We have shackles rated at 30,000 pounds connecting our duct tape barrier to our K-Rail. 599 00:38:23,220 --> 00:38:25,220 This should do the job. 600 00:38:25,220 --> 00:38:32,220 With Tori's tow bar and Grant's RC braking system good to go, car number three is ready for takeoff. 601 00:38:32,220 --> 00:38:33,220 All right, Grant, you ready? 602 00:38:33,220 --> 00:38:34,220 I'm ready. 603 00:38:34,220 --> 00:38:36,220 Okay, brake is off. Here we go. 604 00:38:36,220 --> 00:38:41,220 In three, two, one, hit it. 605 00:38:42,220 --> 00:38:46,220 Good, got a good start. Just getting up good speed. 606 00:38:46,220 --> 00:38:47,220 Tori. 607 00:38:47,220 --> 00:38:49,220 Kerry picks up the pace. 608 00:38:49,220 --> 00:38:51,220 Looking great. Right on target. 609 00:38:51,220 --> 00:38:52,220 Really good, really good. 610 00:38:52,220 --> 00:38:55,220 Oh, we're going to do it this time, dude. 611 00:38:55,220 --> 00:38:56,220 This is it. 612 00:38:57,220 --> 00:38:59,220 Pulls off. 613 00:39:01,220 --> 00:39:03,220 The car hit the duct tape dead off. 614 00:39:05,220 --> 00:39:06,220 Yeah! 615 00:39:06,220 --> 00:39:09,220 That was worth all that suffering. 616 00:39:10,220 --> 00:39:11,220 Wow. 617 00:39:11,220 --> 00:39:13,220 Oh my gosh. 618 00:39:13,220 --> 00:39:15,220 Look at that. 619 00:39:15,220 --> 00:39:17,220 That was right through. 620 00:39:17,220 --> 00:39:20,220 What would you say? Three inches? Two and a half inches of duct tape? 621 00:39:20,220 --> 00:39:21,220 Easily. 622 00:39:21,220 --> 00:39:23,220 Oh, that's three inches for sure. 623 00:39:23,220 --> 00:39:26,220 But the duct tape didn't give up without a fight. 624 00:39:26,220 --> 00:39:30,220 Despite being hit with a force totaling nearly 300,000 foot-pounds, 625 00:39:30,220 --> 00:39:36,220 the barrier still stretched like a piece of elastic before finally snapping. 626 00:39:37,220 --> 00:39:41,220 The wall stretched four to six feet before it gave up. 627 00:39:41,220 --> 00:39:45,220 Just like it's supposed to all that time, absorbing energy. 628 00:39:45,220 --> 00:39:48,220 Still an amazing product, but nope. 629 00:39:48,220 --> 00:39:49,220 Not able to stop the car. 630 00:39:49,220 --> 00:39:54,220 Now sure we could have made one that was two feet thick, but let's face it, 631 00:39:54,220 --> 00:39:58,220 we bust up the K-rail and that stuff is made to stop cars. 632 00:39:58,220 --> 00:39:59,220 Looks like this one's busted. 633 00:39:59,220 --> 00:40:02,220 We found something duct tape finally can't do. 634 00:40:07,220 --> 00:40:08,220 Man. 635 00:40:08,220 --> 00:40:11,220 We got enough duct tape left over to fix that thing. 636 00:40:17,220 --> 00:40:20,220 Meanwhile, Jamie's trapped in a nightmare. 637 00:40:20,220 --> 00:40:24,220 He's finding out the hard way that one of duct tape's main features, 638 00:40:24,220 --> 00:40:29,220 its elasticity, isn't so great when you're 50 feet off the ground. 639 00:40:32,220 --> 00:40:35,220 Every movement triggers more vibration. 640 00:40:35,220 --> 00:40:38,220 It's taking all his strength just to stay upright. 641 00:40:38,220 --> 00:40:40,220 I'm going to sit here and rest a second. 642 00:40:40,220 --> 00:40:41,220 Okay. 643 00:40:42,220 --> 00:40:45,220 Despite pre-stretching, the tape's losing tension, 644 00:40:45,220 --> 00:40:49,220 and he hasn't even made it to the perilous midpoint. 645 00:40:49,220 --> 00:40:51,220 Man, you passed the halfway point. 646 00:40:52,220 --> 00:40:53,220 Is that all? 647 00:40:53,220 --> 00:40:56,220 It feels like I've been going for a while. 648 00:40:59,220 --> 00:41:01,220 I don't mind saying I'm hyperventilating. 649 00:41:01,220 --> 00:41:06,220 The bridge is so unstable, he must inch his way to safety. 650 00:41:11,220 --> 00:41:14,220 It's taken him four times longer than Adam, 651 00:41:14,220 --> 00:41:18,220 but Jamie finally makes it back to Terra Ferma. 652 00:41:18,220 --> 00:41:20,220 Ladies and gentlemen, they are made of brass. 653 00:41:20,220 --> 00:41:22,220 James Heineman, congratulations! 654 00:41:24,220 --> 00:41:26,220 That is absolutely awful. 655 00:41:26,220 --> 00:41:28,220 That's really saying something. 656 00:41:28,220 --> 00:41:32,220 Given the other fears he's faced in the name of myth-busting. 657 00:41:32,220 --> 00:41:34,220 I've been buried alive. 658 00:41:34,220 --> 00:41:37,220 I've been charged by great white sharks. 659 00:41:37,220 --> 00:41:42,220 This thing here is terrifying in a totally different way. 660 00:41:44,220 --> 00:41:47,220 It's not so bad walking across something like this, 661 00:41:47,220 --> 00:41:49,220 just like going over the heights with it. 662 00:41:49,220 --> 00:41:53,220 The problem is that you're just on the verge 663 00:41:53,220 --> 00:41:56,220 when you get a little ways out into it of, 664 00:41:57,220 --> 00:41:59,220 like, losing balance. 665 00:41:59,220 --> 00:42:02,220 It's like there's nothing solid to hold on to. 666 00:42:03,220 --> 00:42:09,220 So, you know, walking across it is this constant, intense correction 667 00:42:09,220 --> 00:42:14,220 to try and dampen out the wiggly waves that you're setting up on these ropes. 668 00:42:14,220 --> 00:42:19,220 Viewing both walks, it's clear Adam was on a much firmer footing. 669 00:42:19,220 --> 00:42:22,220 So why was the bridge so wobbly for me? 670 00:42:22,220 --> 00:42:25,220 Could be me, could be the material, though. 671 00:42:25,220 --> 00:42:28,220 We do know that it stretches out quite a bit under a load, 672 00:42:28,220 --> 00:42:31,220 and Adam did in fact put a load on it. 673 00:42:31,220 --> 00:42:33,220 One way or another, it worked, 674 00:42:33,220 --> 00:42:36,220 but it's not an ideal material for a bridge. 675 00:42:40,220 --> 00:42:42,220 I gotta say I'm pretty impressed with this stuff. 676 00:42:42,220 --> 00:42:46,220 It's a bridge, it's a rope, it can shoot, it can float. 677 00:42:46,220 --> 00:42:50,220 Just two sides and infinite possibilities. 678 00:42:51,220 --> 00:42:54,220 Burd it. Is there anything Ducktip can't do? 679 00:42:54,220 --> 00:42:57,220 Two episodes and counting? Almost nothing. 680 00:42:57,220 --> 00:42:59,220 You know we're far from finished, 681 00:42:59,220 --> 00:43:02,220 we're going to find crazier crap to do with this stuff. 682 00:43:02,220 --> 00:43:05,220 Yeah, but that's another episode. Let's go. 683 00:43:05,220 --> 00:43:06,220 Alright. 684 00:43:09,220 --> 00:43:11,220 I think we need to get airborne with this stuff. 685 00:43:11,220 --> 00:43:13,220 Absolutely. 686 00:43:21,220 --> 00:43:23,220 Want more? 687 00:43:23,220 --> 00:43:26,220 Log on to Discovery.com slash Knitbusters. Go!