1 00:00:00,000 --> 00:00:03,760 attention viewers do not try anything you're about to see at 2 00:00:03,860 --> 00:00:04,300 hope. 3 00:00:04,800 --> 00:00:06,600 We're what you call experts. 4 00:00:08,900 --> 00:00:11,580 On this sticky episode of it's busters. 5 00:00:12,700 --> 00:00:17,440 Relax this one heard a bit the team tackle a trail of duct 6 00:00:17,540 --> 00:00:20,640 tape tall tales fun for the whole family. 7 00:00:21,680 --> 00:00:25,820 First Adam and Jamie strength has the mythical material in 8 00:00:25,920 --> 00:00:30,060 car lift why you ask because secretly always wondered that's 9 00:00:30,160 --> 00:00:30,660 why we're here. 10 00:00:31,060 --> 00:00:35,360 Then they ask can it keep your boat to float going in one that's 11 00:00:35,460 --> 00:00:36,600 already sinking. 12 00:00:36,700 --> 00:00:39,300 They're going to help in the camera crew and one made of 13 00:00:39,400 --> 00:00:44,180 nothing but the tacky tape keep your duct tape from tucks we 14 00:00:44,280 --> 00:00:45,140 got a boat. 15 00:00:45,680 --> 00:00:46,380 Meanwhile. 16 00:00:47,480 --> 00:00:48,840 Harry Brant and Tory. 17 00:00:51,120 --> 00:00:54,880 Find out if he can stretch to sticking a cannon together. 18 00:00:55,820 --> 00:00:56,520 Haha. 19 00:01:01,320 --> 00:01:02,860 Who are the myth busters. 20 00:01:03,620 --> 00:01:07,260 Adam Savage I reject the reality and substitute my own and 21 00:01:07,360 --> 00:01:08,260 Jamie Heineman. 22 00:01:09,560 --> 00:01:13,340 The 30 years of special effects experience. 23 00:01:14,440 --> 00:01:15,100 Joining them. 24 00:01:15,900 --> 00:01:16,640 Kerry Byron. 25 00:01:18,640 --> 00:01:19,740 Grant in the heart. 26 00:01:20,780 --> 00:01:23,340 And Tory Bellachy we're probably probably. 27 00:01:24,140 --> 00:01:26,200 The leaders they don't just tell the myths. 28 00:01:41,940 --> 00:01:45,880 What you got there this is pretty cool it is a wall made 29 00:01:45,980 --> 00:01:48,880 entirely out of duct tape you know I was thinking we could do 30 00:01:48,980 --> 00:01:52,320 an entire segment on duct tape a segment we could do a whole 31 00:01:52,400 --> 00:01:56,760 episode we could do whole season on the mythical properties 32 00:01:56,860 --> 00:01:58,860 of duct tape you know you're right. 33 00:01:59,300 --> 00:02:00,900 Let's do a whole hour on duct tape. 34 00:02:01,640 --> 00:02:02,140 OK. 35 00:02:03,440 --> 00:02:04,440 Recognize this. 36 00:02:04,900 --> 00:02:09,180 A roll of tape and that's just the beginning duct tape supple 37 00:02:09,280 --> 00:02:14,180 vinyl adhesive strength and fabric reinforcement that that 38 00:02:14,280 --> 00:02:18,880 means its versatility knows no bounds one short strip secures 39 00:02:18,940 --> 00:02:23,420 tons of coiled steel which has led to some wild weird and 40 00:02:23,520 --> 00:02:25,180 wacky mythical claims. 41 00:02:27,420 --> 00:02:28,160 What's planned. 42 00:02:28,660 --> 00:02:31,120 Well I'm thinking that the mythical properties of duct 43 00:02:31,220 --> 00:02:34,760 tape generally fall into two categories one is strength I 44 00:02:34,860 --> 00:02:38,840 eat its tensile strength and its adhesion and the other is 45 00:02:38,940 --> 00:02:42,500 that it's so versatile you can do anything at all with it I 46 00:02:42,600 --> 00:02:45,500 say we start by testing its strength mean like lifting a 47 00:02:45,600 --> 00:02:46,340 car with it. 48 00:02:46,740 --> 00:02:47,440 Perfect. 49 00:02:47,640 --> 00:02:48,140 Let's go. 50 00:02:48,600 --> 00:02:51,200 Hold on before we jump right to that why don't we do some 51 00:02:51,300 --> 00:02:54,000 discrete strength tests just to find out what we're in. 52 00:02:56,280 --> 00:02:59,820 So before stretching our miracle mythical material to its 53 00:02:59,920 --> 00:03:01,240 car lifting limits. 54 00:03:01,680 --> 00:03:02,720 Let's start up the crane. 55 00:03:03,080 --> 00:03:06,420 The guys are going to start with a smaller force. 56 00:03:07,660 --> 00:03:12,720 Many people say about duct tape that well it's like the force 57 00:03:13,080 --> 00:03:18,320 it's got a light side and a dark side and it finds the whole 58 00:03:18,420 --> 00:03:19,360 universe together. 59 00:03:21,260 --> 00:03:24,560 Not the universe they'll begin the strength testing by seeing 60 00:03:24,660 --> 00:03:29,300 how much tape it takes to find Adam relax this one hurt a bit. 61 00:03:30,600 --> 00:03:34,900 Channeling his dark side Jamie Dexter Heinemann goes to work 62 00:03:35,000 --> 00:03:36,200 securing his victim. 63 00:03:37,740 --> 00:03:40,080 And he's enjoying it a bit too much. 64 00:03:40,900 --> 00:03:45,600 So this is 20 pieces tape you're holding up to a good it's 65 00:03:45,700 --> 00:03:47,440 actually strangely comforting. 66 00:03:47,740 --> 00:03:49,340 It feels like a really nice blank. 67 00:03:49,580 --> 00:03:50,680 All right let's do it. 68 00:03:56,420 --> 00:04:01,860 This school it's like I am the plywood so far you're not going 69 00:04:01,960 --> 00:04:02,260 anywhere. 70 00:04:02,360 --> 00:04:04,560 No I'm not going anywhere although I tell you I feel 71 00:04:04,660 --> 00:04:06,560 myself settling in here quite. 72 00:04:06,860 --> 00:04:08,620 Well. 73 00:04:09,120 --> 00:04:10,520 Well really I'm almost wait. 74 00:04:12,160 --> 00:04:15,160 Perhaps I should point towards the man I just suggested. 75 00:04:16,300 --> 00:04:17,100 There we go. 76 00:04:17,800 --> 00:04:19,300 Oh whoa. 77 00:04:19,440 --> 00:04:19,940 Hey. 78 00:04:22,540 --> 00:04:24,140 That was just a rigging settling right. 79 00:04:26,280 --> 00:04:27,940 Dude this is actually quite comfortable. 80 00:04:28,440 --> 00:04:31,220 Who rolls the tape equals a whole afternoon of fun. 81 00:04:32,620 --> 00:04:33,920 But for the whole family. 82 00:04:34,920 --> 00:04:38,740 Of course it goes without saying but we're going to anyway. 83 00:04:38,840 --> 00:04:40,720 Please don't try this at home. 84 00:04:40,820 --> 00:04:44,020 Adam and Jamie are trained duct tape strength test 85 00:04:44,120 --> 00:04:45,020 professionals. 86 00:04:45,120 --> 00:04:48,160 Unless you think that I am foolhardy or reckless for 87 00:04:48,260 --> 00:04:51,100 allowing my 180 pounds to be held up by two rolls of duct 88 00:04:51,200 --> 00:04:51,760 tape. 89 00:04:51,860 --> 00:04:54,760 This is actually quite a safe system I feel quite comfortable. 90 00:04:54,860 --> 00:04:58,100 It's a distributed system which means it has many points of 91 00:04:58,200 --> 00:05:01,300 failure a lot of redundancy built in by all the different 92 00:05:01,400 --> 00:05:02,900 pieces of duct tape stuck to the plywood. 93 00:05:02,920 --> 00:05:05,060 So I can hang out here all day. 94 00:05:09,160 --> 00:05:10,900 Well Adams hang it around. 95 00:05:11,000 --> 00:05:15,240 Carrie Grant and Tory are about to go ballistic hit me. 96 00:05:17,240 --> 00:05:19,380 So what's the man you've heard of a potato cannon right. 97 00:05:19,480 --> 00:05:23,180 Yeah you take a bunch of PVC pipe glued together seal off one 98 00:05:23,280 --> 00:05:27,080 in at some propellant at a potato ignite the propellant and 99 00:05:27,180 --> 00:05:30,960 bang you're launching potatoes exactly as most teenagers and 100 00:05:31,020 --> 00:05:33,380 Internet anarchists know you usually use a cement seal the 101 00:05:33,480 --> 00:05:37,320 PVC piping but there's a just as reliable much quicker way 102 00:05:37,420 --> 00:05:40,800 using duct tape apparently duct tape is strong enough to 103 00:05:40,900 --> 00:05:42,860 withstand the forces of the potato cannon. 104 00:05:42,960 --> 00:05:46,160 All right sounds easy enough so we make two cannons one the 105 00:05:46,260 --> 00:05:48,900 traditional way and one with duct tape and see how they 106 00:05:49,000 --> 00:05:49,400 compare. 107 00:05:50,900 --> 00:05:54,680 If used responsibly potato cannons are fun for the whole 108 00:05:54,780 --> 00:05:55,380 family. 109 00:05:56,340 --> 00:06:00,240 Add here's how they work a series of PVC piping is glued 110 00:06:00,260 --> 00:06:02,260 together with PVC cement. 111 00:06:03,100 --> 00:06:05,140 Potato is pushed into the barrel. 112 00:06:05,640 --> 00:06:09,200 The point is squirted into the combustion chamber ignite that 113 00:06:09,300 --> 00:06:12,380 propellant with a spark and just like a real cat the 114 00:06:12,480 --> 00:06:13,340 projectiles. 115 00:06:14,880 --> 00:06:18,180 But the team want to know can you really replace the PVC 116 00:06:18,280 --> 00:06:20,520 cement with plain old duct tape. 117 00:06:21,620 --> 00:06:24,020 Now this may look like a pretty random bunch of materials I 118 00:06:24,120 --> 00:06:27,520 have here I mean we're talking piping duct tape potatoes but 119 00:06:27,540 --> 00:06:30,580 to me this looks like the glorious beginnings of a good 120 00:06:30,680 --> 00:06:32,880 old fashioned potato cannon. 121 00:06:33,280 --> 00:06:35,920 That's exactly what I'm going to build basically a potato 122 00:06:36,020 --> 00:06:38,620 can and is like any can and you have an explosion happening 123 00:06:38,720 --> 00:06:39,720 in the combustion chamber. 124 00:06:40,020 --> 00:06:42,360 Okay that is my combustion chamber held together with 125 00:06:42,460 --> 00:06:43,060 duct tape. 126 00:06:43,660 --> 00:06:46,500 Gases are expanding and they need to escape so they look for 127 00:06:46,600 --> 00:06:47,800 the path of least resistance. 128 00:06:49,240 --> 00:06:51,400 Now that should be the potato that's why the potato 129 00:06:51,500 --> 00:06:53,840 launches across the field. 130 00:06:53,840 --> 00:07:03,300 And the big question is can the duct tape hold up as well as 131 00:07:03,400 --> 00:07:05,940 the actual cement that you use to put these pipes together. 132 00:07:06,040 --> 00:07:09,280 So with the cannons complete the team makes its way to its 133 00:07:09,380 --> 00:07:11,080 detonation destination. 134 00:07:12,680 --> 00:07:15,020 So we got us some potato cannons and we can't fire them in 135 00:07:15,120 --> 00:07:17,220 the shop so we've come to the Alameda run where we have a 136 00:07:17,320 --> 00:07:20,720 big sprints of space right here we can shoot off into the 137 00:07:20,720 --> 00:07:23,980 distance and explore whether duct tape is as strong as a 138 00:07:24,080 --> 00:07:26,280 traditional glue that holds together a potato can. 139 00:07:26,880 --> 00:07:29,120 He's just relaxing on the court shooting off his potato 140 00:07:29,220 --> 00:07:29,420 gun. 141 00:07:30,460 --> 00:07:31,520 Trying to hit San Francisco. 142 00:07:31,620 --> 00:07:31,920 Yeah. 143 00:07:32,720 --> 00:07:34,420 Ladies and gentlemen boys and girls let me introduce you to 144 00:07:34,520 --> 00:07:38,000 the latest items in the Kerry Byron line of home destruction. 145 00:07:38,100 --> 00:07:41,360 This is a spud trucker made entirely out of PVC tubing with 146 00:07:41,460 --> 00:07:44,740 actual PVC glue and this is the duct tape tater toaster but 147 00:07:44,840 --> 00:07:46,900 this has duct tape fastening. 148 00:07:47,200 --> 00:07:49,800 This is a set up for a control test to have Buster in the 149 00:07:49,860 --> 00:07:51,120 chair and loader up. 150 00:07:51,820 --> 00:07:53,920 We've got a skill to tell us how fast potatoes come out of the 151 00:07:54,020 --> 00:07:57,160 barrel and just for laps we'll be measuring exactly how far 152 00:07:57,260 --> 00:07:57,860 they go. 153 00:07:57,960 --> 00:08:01,800 This is going to be great ready with a couple of squirts of the 154 00:08:01,900 --> 00:08:06,200 classified propellant the control cannon is good to blow. 155 00:08:06,400 --> 00:08:07,200 All right light it up. 156 00:08:09,000 --> 00:08:16,280 Okay we got the spud checker aka Spudzuka in 3 2 1. 157 00:08:19,800 --> 00:08:21,600 All right should we go see how far that potato went. 158 00:08:27,600 --> 00:08:28,400 Where's splash on. 159 00:08:28,600 --> 00:08:32,200 All right what do we get 267 feet as pretty good. 160 00:08:32,700 --> 00:08:36,600 Pretty good sure but they want a pretty good data set. 161 00:08:37,600 --> 00:08:40,240 And for that they'll need multiple shots. 162 00:08:41,520 --> 00:08:44,420 397 and more bad pun. 163 00:08:44,520 --> 00:08:46,480 All right in the next but Nick. 164 00:08:47,480 --> 00:08:50,880 Yeah before they get the all important distance average. 165 00:08:51,880 --> 00:08:52,980 In 75. 166 00:08:53,780 --> 00:08:56,680 So the potato can is working great we got some good 167 00:08:56,780 --> 00:08:57,380 distances. 168 00:08:57,480 --> 00:09:01,980 Yeah, we got an average range of 346 feet speed of 179 miles 169 00:09:02,080 --> 00:09:02,480 per hour. 170 00:09:02,580 --> 00:09:04,880 So next step duct tape tater toaster. 171 00:09:04,980 --> 00:09:07,580 I have a true test here is will the duct tape hold up. 172 00:09:07,780 --> 00:09:09,680 This could be explosive. 173 00:09:10,680 --> 00:09:14,380 So can duct tape contain an explosion capable of sending a 174 00:09:14,380 --> 00:09:19,180 spud over 300 feet at a speed of 179 miles an hour. 175 00:09:20,380 --> 00:09:21,380 All right let's do it. 176 00:09:21,980 --> 00:09:26,080 Surely it's too much to ask of this humble yet highly versatile 177 00:09:26,180 --> 00:09:26,880 material. 178 00:09:27,080 --> 00:09:32,480 That tape tater toaster in 3 2 1. 179 00:09:35,580 --> 00:09:37,780 It worked the duct tape held together. 180 00:09:37,880 --> 00:09:38,980 Yeah didn't explode. 181 00:09:39,380 --> 00:09:42,780 Not only did it not explode the first shot from the duct tape 182 00:09:42,780 --> 00:09:44,980 tater toaster was right in the slot. 183 00:09:47,180 --> 00:09:50,180 387 that is right in the range. 184 00:09:51,580 --> 00:09:52,780 And it didn't blow up. 185 00:09:55,280 --> 00:09:57,780 Just to make sure I think we might have to fire maybe a few 186 00:09:57,880 --> 00:10:01,680 more off right right because although they know it works. 187 00:10:03,980 --> 00:10:07,780 The question is does it match the regular cannons reliability. 188 00:10:09,980 --> 00:10:11,180 Get away from our test. 189 00:10:11,280 --> 00:10:12,280 It's not sample. 190 00:10:13,580 --> 00:10:17,380 Now to you it may look like a sea of cones but to me it's data 191 00:10:17,480 --> 00:10:19,180 not only that it's consistent data. 192 00:10:19,280 --> 00:10:22,780 Let me lay it on our spud chucker held together by PVC cement 193 00:10:22,980 --> 00:10:26,980 had an average range of 346 feet and an average speed of 194 00:10:27,080 --> 00:10:28,680 179 miles per hour. 195 00:10:29,080 --> 00:10:32,080 Our duct tape tater toaster which is a potato cannon held 196 00:10:32,180 --> 00:10:36,480 together entirely by duct tape at an average range of 336 197 00:10:36,580 --> 00:10:39,580 feet and an average speed of 160 miles per hour. 198 00:10:39,880 --> 00:10:43,480 That's a difference of 3% on the range and 11% on the speed 199 00:10:43,780 --> 00:10:46,780 now given varying wins differences in the masses of the 200 00:10:46,880 --> 00:10:50,580 potatoes and difference amounts of propellant I'd say that's 201 00:10:50,680 --> 00:10:52,780 enough to call their performance identical. 202 00:10:55,480 --> 00:10:59,580 After the break we try to pick up a 5,000 pound car with 203 00:10:59,680 --> 00:11:03,580 duct tape and then they do you got some on your face carry 204 00:11:03,680 --> 00:11:07,180 grantant or a get down and dirty strengths testing duct 205 00:11:07,280 --> 00:11:08,780 tape with black powder. 206 00:11:09,980 --> 00:11:10,580 I'm not sure. 207 00:11:16,380 --> 00:11:19,080 The tape was originally invented by the army and I used it 208 00:11:19,180 --> 00:11:22,580 to seal up ammo cases and they called it duct tape you know 209 00:11:23,780 --> 00:11:27,480 crack damn you because it would repel water later on they 210 00:11:27,580 --> 00:11:30,180 started to use it for heating and air conditioning events 211 00:11:30,280 --> 00:11:33,780 things like that because they would seal it up but basically 212 00:11:33,880 --> 00:11:37,280 the formulation is the same it's a plastic coating on the 213 00:11:37,280 --> 00:11:41,380 outside to seal things up it has a fabric structure that 214 00:11:41,480 --> 00:11:44,580 gives it its strength and it has a natural rubber adhesive 215 00:11:44,680 --> 00:11:46,680 on the inside so it sticks to stuff. 216 00:11:47,780 --> 00:11:51,280 And it's that combination of strength and stickiness that 217 00:11:51,380 --> 00:11:54,980 has led to the first myth can it suspend a car. 218 00:11:57,580 --> 00:12:00,980 To find out Adam and Jamie are weighing in with some strip 219 00:12:01,080 --> 00:12:03,980 by strip numbers we need to find out how much a single 220 00:12:03,980 --> 00:12:06,980 length of tape will support in terms of weight so we can 221 00:12:07,080 --> 00:12:10,180 determine how many we need to lift the car. Now this is our 222 00:12:10,280 --> 00:12:13,280 tape testing rate we've got one end of the tape goes on a bar 223 00:12:13,380 --> 00:12:16,480 on the forklift the other end of the tape goes on this flat 224 00:12:16,580 --> 00:12:19,780 metal surface and we keep adding barbell weights until the 225 00:12:19,880 --> 00:12:20,480 tape breaks. 226 00:12:31,280 --> 00:12:33,880 Wow we figured out pretty much the exact weight threshold 227 00:12:33,980 --> 00:12:37,480 on the first try. Yep I'd say about 70 pounds for a one time 228 00:12:37,580 --> 00:12:37,880 lift. 229 00:12:38,880 --> 00:12:42,580 So all they need now is some wide open space and a car they 230 00:12:42,680 --> 00:12:43,780 don't mind dropping. 231 00:12:59,580 --> 00:13:01,380 Let's get started. Okay. 232 00:13:02,180 --> 00:13:03,480 It'll be a simple setup. 233 00:13:04,980 --> 00:13:10,980 A crane like this one and a hook shackle and single crossbar. 234 00:13:11,080 --> 00:13:13,480 This thing right here is what we're going to attach the tape 235 00:13:13,580 --> 00:13:13,780 to. 236 00:13:14,980 --> 00:13:18,480 And hanging from the other end of the myth inspiring sticky 237 00:13:18,580 --> 00:13:19,980 stuff will be the car. 238 00:13:20,680 --> 00:13:24,280 The car weighs about 5000 pounds now each strip of tape will 239 00:13:24,380 --> 00:13:25,780 hold about 70 pounds. 240 00:13:26,480 --> 00:13:30,180 That means we get away with lifting the car with around 80 241 00:13:30,280 --> 00:13:33,380 strips of tape I think we'll call it a hundred just be safe. 242 00:13:33,780 --> 00:13:37,880 Jamie this is your conscience it's time to start working. 243 00:13:42,180 --> 00:13:43,980 There are a lot of different things you can do with duct tape 244 00:13:44,280 --> 00:13:46,780 you can bind things together you can seal things up like ducks 245 00:13:46,880 --> 00:13:50,180 and so on but what we're looking for here is how sticky it 246 00:13:50,280 --> 00:13:50,580 is. 247 00:13:53,680 --> 00:13:57,280 If we do our job right and we actually are able to lift the 248 00:13:57,380 --> 00:14:00,880 car off the ground that cloth and the tape is going to give 249 00:14:00,980 --> 00:14:02,580 away before the adhesive does. 250 00:14:03,180 --> 00:14:05,480 It's like a cathedral of that. 251 00:14:06,780 --> 00:14:08,980 That makes sense mean duct tape is almost a religion with some 252 00:14:09,080 --> 00:14:09,480 people. 253 00:14:11,080 --> 00:14:14,680 Why you ask because secretly you've always wondered and 254 00:14:14,780 --> 00:14:15,480 that's why we're here. 255 00:14:17,280 --> 00:14:21,480 We've used 99 separate strands. All right here it is last one 256 00:14:22,180 --> 00:14:25,780 just a 5 and a half rolls of duct tape and by our measurement 257 00:14:25,880 --> 00:14:29,080 this ought to be just enough to lift this car. 258 00:14:29,680 --> 00:14:32,180 I think it's going to let's get it off the ground. 259 00:14:32,580 --> 00:14:33,680 Let's start up the crane. 260 00:14:35,080 --> 00:14:37,180 The crane winch cranks into action. 261 00:14:37,580 --> 00:14:41,980 This is it and millimeter by millimeter it gently pulls the 262 00:14:42,080 --> 00:14:43,580 car skyward. 263 00:14:43,980 --> 00:14:45,980 Okay I can see it's starting to come up. 264 00:14:47,780 --> 00:14:50,680 It's got very loose relationship with the ground right now. 265 00:14:50,980 --> 00:14:52,480 It's almost painful to watch. 266 00:14:56,980 --> 00:14:59,780 So it looks like duct tape can be used to seal a potato cannon. 267 00:14:59,880 --> 00:15:00,980 Yeah that's got me thinking. 268 00:15:00,980 --> 00:15:02,180 Ooh that's got me worried. 269 00:15:02,280 --> 00:15:04,880 It should because I'm thinking that you make an entire 270 00:15:04,980 --> 00:15:06,980 cannon out of duct tape. 271 00:15:07,080 --> 00:15:09,280 Wait a minute you're talking about a genuine black powder 272 00:15:09,380 --> 00:15:12,480 cannon firing real cannonballs out of nothing but duct tape. 273 00:15:12,580 --> 00:15:14,980 Yes Kerry you should start thinking more often. 274 00:15:15,080 --> 00:15:18,380 I know we're mythbusters we have to ramp it up. 275 00:15:18,480 --> 00:15:21,480 Okay hang on a second you guys inside of a real cannon the 276 00:15:21,580 --> 00:15:24,080 pressures are significantly higher than inside a potato 277 00:15:24,180 --> 00:15:24,480 cannon. 278 00:15:24,580 --> 00:15:26,580 Well maybe we should find out if duct tape is even strong 279 00:15:26,680 --> 00:15:26,980 enough. 280 00:15:27,080 --> 00:15:29,580 We'll take a steel pipe seal off one end with nothing but 281 00:15:29,580 --> 00:15:32,180 duct tape load it like a cannon fire it and see if it 282 00:15:32,280 --> 00:15:34,980 withstands the forces and we'll start with one inch thick 283 00:15:35,080 --> 00:15:37,580 then we'll go to two three four inches until we find out the 284 00:15:37,680 --> 00:15:39,380 thickness that it needs to be to hold up. 285 00:15:39,980 --> 00:15:44,180 A cannon a regular one works a bit like this the black powder 286 00:15:44,280 --> 00:15:47,980 explodes in the combustion chamber and the expanding gases 287 00:15:48,080 --> 00:15:50,180 throw the cannonball along the barrel. 288 00:15:50,980 --> 00:15:54,580 So first up to find out how much duct tape is required to 289 00:15:54,680 --> 00:15:57,780 withstand those pressures the guys are going to replace the 290 00:15:57,780 --> 00:16:01,480 back end of the combustion chamber with inch thick tiles of 291 00:16:01,580 --> 00:16:01,980 tape. 292 00:16:03,480 --> 00:16:04,780 However many it takes. 293 00:16:08,380 --> 00:16:11,080 I see injuries in my future so it's time for me to whip out 294 00:16:11,180 --> 00:16:14,080 my can and now let's just say a new few things about building 295 00:16:14,180 --> 00:16:14,380 can. 296 00:16:15,480 --> 00:16:18,680 However this time we're building it out of nothing but duct 297 00:16:18,780 --> 00:16:21,180 tape now duct tape is strong but is it going to be strong 298 00:16:21,280 --> 00:16:24,080 enough to withstand the kind of forces that are exerted by 299 00:16:24,080 --> 00:16:27,780 exploding black powder so I need to make a strength cage. 300 00:16:30,080 --> 00:16:32,580 That way we can put the duct tape under the same conditions 301 00:16:32,680 --> 00:16:35,680 that a can it would be under so we could test the limits of 302 00:16:35,780 --> 00:16:39,080 this duct tape. I mean black powder and duct tape doesn't 303 00:16:39,180 --> 00:16:41,680 sound like science. That's not like a family reunion. 304 00:16:43,380 --> 00:16:47,180 So this is the strength part of our strength games flash frame 305 00:16:47,280 --> 00:16:50,980 I've cut out for layering duct tape going to make a one inch 306 00:16:50,980 --> 00:16:54,280 thick sheet that I'll then cut down into one foot by one foot 307 00:16:54,380 --> 00:16:55,280 square tile. 308 00:16:55,680 --> 00:16:58,580 They're going to bolt up the back what Tori's making and we 309 00:16:58,680 --> 00:17:02,180 ignite our black powder will find out how much duct tape it 310 00:17:02,280 --> 00:17:02,580 does. 311 00:17:05,580 --> 00:17:07,980 So that is one inch thick. 312 00:17:09,980 --> 00:17:12,380 All right, let's cut it up in the tiles. 313 00:17:13,680 --> 00:17:19,280 We've used 37 rolls 60 yards roll that's 2,220 yards of 314 00:17:20,280 --> 00:17:21,680 they did you got some on your face. 315 00:17:22,280 --> 00:17:25,880 That's one and a quarter miles make all the tiles we need for 316 00:17:25,980 --> 00:17:26,880 strength test. 317 00:17:27,380 --> 00:17:31,080 So with the duct tape tiles and strength gauge complete it's 318 00:17:31,180 --> 00:17:33,780 off to a familiar and favorite location. 319 00:17:34,880 --> 00:17:37,480 We've come here to the bomb are favorite place to test the 320 00:17:37,580 --> 00:17:40,980 safe way so that nobody gets hurt straight cage, it's not a 321 00:17:41,080 --> 00:17:44,680 kid and if you're wondering exactly why it's not a cannon. 322 00:17:44,880 --> 00:17:48,680 Here's the man with the can strength game first we're not 323 00:17:48,680 --> 00:17:52,280 using a cannonball we're using a piston it's the same diameter 324 00:17:52,380 --> 00:17:54,380 and weight is a cannonball but it's not a cannonball. 325 00:17:55,080 --> 00:17:58,280 You may got a duct tape second we're not using a fuse we're 326 00:17:58,380 --> 00:18:01,980 using an electric remote system to light off the gunpowder 327 00:18:02,080 --> 00:18:06,480 and most importantly there is no steel back at the end of this 328 00:18:06,580 --> 00:18:10,180 steel to it's going to be a duct tape panel once we load this 329 00:18:10,280 --> 00:18:13,380 up and fired off what we're looking for is the piston to fly 330 00:18:13,480 --> 00:18:17,580 out of the barrel and have the duct tape intact if that happens 331 00:18:17,780 --> 00:18:20,380 then we know duct tape is strong enough to build a cannon out 332 00:18:20,980 --> 00:18:23,680 you know after looking at how thick that one inch duct tape 333 00:18:23,780 --> 00:18:26,580 panel is I'm thinking one panel is going to be enough really 334 00:18:26,680 --> 00:18:29,280 just one I think it's going to take at least to I would bet on 335 00:18:29,380 --> 00:18:31,280 to I think it's going to take at least 3. 336 00:18:31,580 --> 00:18:34,580 All right put your money where your mouth is I got 5 bucks I 337 00:18:34,680 --> 00:18:37,380 got 5. Okay so who holds the money. 338 00:18:38,580 --> 00:18:39,080 Camera. 339 00:18:42,180 --> 00:18:45,080 All right we're hooked in for this to be a good successful test 340 00:18:45,080 --> 00:18:47,980 what we're looking for is that the duct tape tiles whatever 341 00:18:48,080 --> 00:18:52,480 thickness we end up with will be intact while the piston blows 342 00:18:52,580 --> 00:18:56,780 out the other end of the strength. Okay so this is one inch thick 343 00:18:56,880 --> 00:18:59,580 slab of duct tape in the strength gauge. 344 00:18:59,880 --> 00:19:06,080 This is your chance at $15. All right here we go in 3, 2, 1. 345 00:19:10,080 --> 00:19:12,080 Pay up suckers. Wow. 346 00:19:12,080 --> 00:19:14,780 Wait wait let's survey the damage first I want to make sure it 347 00:19:14,880 --> 00:19:15,480 held up. 348 00:19:19,080 --> 00:19:22,080 Incredibly it seems to have worked first time out. 349 00:19:24,580 --> 00:19:27,080 And it's disbelief all around. 350 00:19:27,380 --> 00:19:30,780 There's no way this test works on the first go there's no way. 351 00:19:35,080 --> 00:19:37,880 A one inch thick slab of duct tape was enough to withstand the 352 00:19:37,980 --> 00:19:40,380 kind of force to launch a cannonball. 353 00:19:43,080 --> 00:19:47,580 It's perfect man. It burned the heck out of it but didn't blow out. 354 00:19:47,680 --> 00:19:50,780 That's beautiful. It just burnt off the wax paper too it didn't 355 00:19:50,880 --> 00:19:52,780 even go through the first layer of duct tape. 356 00:19:53,180 --> 00:19:55,080 This stuff is incredible. 357 00:19:55,280 --> 00:19:57,880 We got a great result from the duct tape strength test it looks 358 00:19:57,980 --> 00:20:00,480 like duct tape is going to be strong enough to build a cannon 359 00:20:00,580 --> 00:20:02,880 out of it. Now all we need to do is build a cannon. 360 00:20:02,980 --> 00:20:05,880 You know what the best part of this experiment was? I won the 361 00:20:05,980 --> 00:20:09,380 bet. Give me my money punk. Give me that. 362 00:20:10,380 --> 00:20:13,380 Coming up on that busters will duct tape repair your boat if 363 00:20:13,480 --> 00:20:14,180 it's got a hole. 364 00:20:22,680 --> 00:20:26,180 Oh come on baby Adam and Jamie are attempting to lift a car 365 00:20:26,280 --> 00:20:30,780 with just 99 strips of duct tape and they're close. 366 00:20:31,580 --> 00:20:32,580 Real close. 367 00:20:32,880 --> 00:20:33,980 It's got one wheel. 368 00:20:38,880 --> 00:20:40,080 That's kind of nuts. 369 00:20:41,380 --> 00:20:44,680 Why you need to do this I don't know but it's cool. It's 370 00:20:44,780 --> 00:20:45,280 holding. 371 00:20:46,580 --> 00:20:50,380 It's holding and with a flight time of a minute and counting 372 00:20:50,580 --> 00:20:54,780 the result is clear leaving just one remaining question. 373 00:20:54,880 --> 00:20:57,880 It's only a matter of time before it comes crashing down. 374 00:20:58,180 --> 00:21:00,180 It'll be just like a zipper opening up. 375 00:21:00,680 --> 00:21:03,380 Yeah as with all flights off the ground taking off his 376 00:21:03,480 --> 00:21:05,280 optional landing is mandatory. 377 00:21:07,680 --> 00:21:08,480 First one went. 378 00:21:09,880 --> 00:21:12,280 That's two strips of tape that are gone now. 379 00:21:23,680 --> 00:21:25,180 Exactly like a zipper. 380 00:21:26,680 --> 00:21:29,980 Plus just like Jamie suggested wasn't the adhesive that 381 00:21:29,980 --> 00:21:33,080 gave way but the tape itself. Wow. 382 00:21:34,080 --> 00:21:36,880 I love how consistently it broke all the way along that 383 00:21:36,980 --> 00:21:37,580 sharp point. 384 00:21:37,980 --> 00:21:42,380 Yeah I don't see a single piece of tape that lost its adhesion 385 00:21:42,480 --> 00:21:44,380 they all ripped right in the middle of the tape. 386 00:21:44,480 --> 00:21:44,980 It's true. 387 00:21:49,980 --> 00:21:52,880 Yet again tools and materials used in ways for which they 388 00:21:52,980 --> 00:21:53,980 were never intended. 389 00:21:54,680 --> 00:21:55,880 In the case of duct tape. 390 00:21:56,480 --> 00:21:59,280 If you've got enough of it you can move the world. 391 00:22:00,480 --> 00:22:01,780 Not a bad way to spend the afternoon. 392 00:22:03,480 --> 00:22:06,480 What's next this is a good one for you captain have you ever 393 00:22:06,580 --> 00:22:10,080 had to use duct tape to fix a leak in a boat. 394 00:22:10,680 --> 00:22:11,680 My boats don't leak. 395 00:22:11,980 --> 00:22:14,580 Okay well just imagine you're out on the open seas your 396 00:22:14,680 --> 00:22:17,180 boats got a leak in it and this is the only thing you've got 397 00:22:17,280 --> 00:22:21,580 to repair it will it do the job waterproofing adhesion 398 00:22:22,080 --> 00:22:23,280 sounds like a good test. 399 00:22:23,480 --> 00:22:24,080 I thought so. 400 00:22:25,180 --> 00:22:29,180 And so our two myth busters want an optimist gorgeous day 401 00:22:29,280 --> 00:22:33,480 for a boat ride and what a pessimist are sinking about 402 00:22:34,380 --> 00:22:38,280 arrive on the shores of Frisco Bay ready to set this myth 403 00:22:38,380 --> 00:22:38,980 and drift. 404 00:22:39,080 --> 00:22:41,380 Well if we're going to repair a hole in a boat with duct tape 405 00:22:41,480 --> 00:22:43,580 then obviously we're going to be a boat with a hole in it. 406 00:22:43,880 --> 00:22:48,180 We've got a boat doesn't yet have a hole but I'm about to 407 00:22:48,280 --> 00:22:48,980 remedy that. 408 00:22:49,080 --> 00:23:00,080 It's a sizable hole in the hall but confidence in the sticky 409 00:23:00,180 --> 00:23:02,080 cure is still high and dry. 410 00:23:02,180 --> 00:23:04,580 This is a no brainer the tape is going to hold just fine 411 00:23:04,680 --> 00:23:07,980 under these conditions this size hole we could sail all day. 412 00:23:09,080 --> 00:23:13,180 However Jamie glass half empty Heinemann is prepared for the 413 00:23:13,280 --> 00:23:15,880 worst going to get in a leaky boat need to remember a couple 414 00:23:15,980 --> 00:23:17,980 things the first one is a life preserver. 415 00:23:18,180 --> 00:23:21,180 All right let's put this puppy on the water and the second one 416 00:23:21,280 --> 00:23:24,980 is something to bail with like a bleach bottle or something 417 00:23:25,080 --> 00:23:25,580 like that. 418 00:23:28,780 --> 00:23:30,180 Go all right. 419 00:23:30,780 --> 00:23:34,980 I'll step in okay well it floats it successfully supports 420 00:23:35,980 --> 00:23:36,780 on this bus. 421 00:23:38,580 --> 00:23:40,980 It's faster I don't see any water. 422 00:23:41,980 --> 00:23:43,280 That's always good sign. 423 00:23:44,280 --> 00:23:48,980 And the dingy with its duct tape patch is looking good to 424 00:23:49,080 --> 00:23:49,480 roll. 425 00:23:54,780 --> 00:23:57,480 Plus it's also standing the test of time. 426 00:23:58,880 --> 00:24:00,180 Should have brought my fishing pole. 427 00:24:01,480 --> 00:24:04,180 Properly applied the duct tape actually seems to be doing 428 00:24:04,280 --> 00:24:07,880 fairly well I have to say though I wouldn't take off across 429 00:24:07,980 --> 00:24:11,680 the ocean with that kind of patch it works but it scares me 430 00:24:11,780 --> 00:24:12,280 a little bit. 431 00:24:13,280 --> 00:24:16,780 And with good reason because at the 30 minute mark was that 432 00:24:16,880 --> 00:24:20,080 water coming in from there's a hint that the duct tape isn't 433 00:24:20,180 --> 00:24:21,680 a permanent solution. 434 00:24:21,980 --> 00:24:23,080 Pulling in the bottom there. 435 00:24:23,680 --> 00:24:25,180 That's kind of a bad sign. 436 00:24:25,980 --> 00:24:29,180 It clearly works I mean we're still a float but I'm not too 437 00:24:29,280 --> 00:24:31,480 happy with it because we're going to have to start bailing 438 00:24:31,580 --> 00:24:34,480 before long I would say that it's not waterproof but it's 439 00:24:34,580 --> 00:24:36,180 absolutely water resistant. 440 00:24:36,480 --> 00:24:40,580 I'll buy that it's a testament to the tape that after 40 minutes 441 00:24:40,580 --> 00:24:42,480 there's still a flow just a little wet. 442 00:24:42,980 --> 00:24:45,480 But Adam has a tougher assignment in mind. 443 00:24:45,880 --> 00:24:48,080 I think a duck tape patches holding up pretty well but 444 00:24:48,180 --> 00:24:49,780 honestly when I think. 445 00:24:50,480 --> 00:24:51,380 But repair. 446 00:24:52,480 --> 00:24:54,880 I don't think of her in the boat on the dock and then putting 447 00:24:54,980 --> 00:24:56,680 in you're going to do it on the dock you're going to have all 448 00:24:56,780 --> 00:24:57,680 the materials you need. 449 00:24:57,980 --> 00:25:01,480 That means you're in an emergency situation I would like 450 00:25:01,580 --> 00:25:04,180 to create that emergency situation. 451 00:25:05,280 --> 00:25:08,380 You want to get wet I do the patch waters pouring through 452 00:25:08,380 --> 00:25:11,580 the hole duct tape the only thing we got we got to fix that 453 00:25:11,680 --> 00:25:11,980 hole. 454 00:25:13,980 --> 00:25:15,480 The waters cold yeah. 455 00:25:17,380 --> 00:25:18,180 There we go. 456 00:25:20,580 --> 00:25:22,780 That's a bonafide emergency we got going on there. 457 00:25:23,180 --> 00:25:25,880 I'll start making a patch you start making a patch like the 458 00:25:25,980 --> 00:25:30,080 little boy and the Dyke Adam is plugging the whole digitally. 459 00:25:32,180 --> 00:25:35,080 While Jamie goes to work with the mythical material. 460 00:25:35,880 --> 00:25:38,580 If you have to apply duct tape underwater you're going to have 461 00:25:38,680 --> 00:25:41,780 a hard time because the water forms of film that inhibits 462 00:25:41,880 --> 00:25:44,480 the adhesive really connecting with the surface you're trying 463 00:25:44,580 --> 00:25:45,280 to put it on. 464 00:25:45,480 --> 00:25:45,680 All right. 465 00:25:45,780 --> 00:25:46,780 Going in ready. 466 00:25:46,980 --> 00:25:47,380 Okay. 467 00:25:48,580 --> 00:25:52,080 It's really frustrating it's just like the adhesive is not 468 00:25:52,180 --> 00:25:52,580 there. 469 00:25:53,080 --> 00:25:55,180 I'm surprised it's not sticking very well. 470 00:25:55,880 --> 00:25:57,280 But it is sticking a little bit. 471 00:25:57,680 --> 00:25:57,880 All right. 472 00:25:57,980 --> 00:25:58,680 Take your foot off. 473 00:25:59,680 --> 00:26:02,280 I think we start the clock and see how that repair does what 474 00:26:02,380 --> 00:26:03,880 you say starts now. 475 00:26:03,980 --> 00:26:04,580 Okay. 476 00:26:05,380 --> 00:26:09,380 Coming up next on myth busters we try to make a cannon at a 477 00:26:09,480 --> 00:26:10,180 duct tape. 478 00:26:12,980 --> 00:26:14,480 We try to make a sailboat. 479 00:26:14,780 --> 00:26:15,580 No kidding. 480 00:26:18,580 --> 00:26:20,780 Do not try what you're about to see at home. 481 00:26:20,980 --> 00:26:24,180 We consult with experts we take every precaution and we have 482 00:26:24,280 --> 00:26:26,480 years of experience in dangerous situations. 483 00:26:30,180 --> 00:26:30,680 One. 484 00:26:31,580 --> 00:26:35,180 Harry Grant and Tory have seen that one inch thick duct tape 485 00:26:35,280 --> 00:26:39,580 can withstand the explosive pressures of a cannon and the 486 00:26:39,680 --> 00:26:42,980 team is going to play it safe by making its duct tape cannon 487 00:26:43,080 --> 00:26:46,980 barrel 2 inches thick and to get the perfect shape it's going 488 00:26:47,080 --> 00:26:49,580 to build it around a removable steel form. 489 00:26:51,080 --> 00:26:53,480 Okay so here's the plan we have our internal diameter plug 490 00:26:53,680 --> 00:26:55,980 we're going to grease this up you know what Jamie would say 491 00:26:56,080 --> 00:26:56,380 here. 492 00:26:56,780 --> 00:26:58,280 When in doubt Lou. 493 00:26:58,880 --> 00:27:00,080 When covered wax paper. 494 00:27:01,980 --> 00:27:04,080 And we're set across hatching system with all of our duct 495 00:27:04,180 --> 00:27:06,680 tape to get to our target thickness that we have the perfect 496 00:27:06,780 --> 00:27:07,580 duct tape cannon. 497 00:27:08,480 --> 00:27:12,080 With almost 20 rolls of tape used at the end in sight. 498 00:27:12,580 --> 00:27:16,280 It looks like a giant debt tape set for a big silver sausage 499 00:27:16,880 --> 00:27:17,380 or that. 500 00:27:18,180 --> 00:27:20,980 The team starts thinking through the next stage of the bill. 501 00:27:21,580 --> 00:27:24,780 One of our big concerns is that the can will simply collapse 502 00:27:24,780 --> 00:27:28,880 on itself so I'm going to make a smaller wooden form that we 503 00:27:28,980 --> 00:27:31,480 can use to safely transport this tour testing site. 504 00:27:32,880 --> 00:27:35,780 Here it is and another problem that we're going to face is 505 00:27:35,880 --> 00:27:39,380 the cannon itself may just fall. So I got to come up with some 506 00:27:39,480 --> 00:27:41,880 kind of support system that runs the entire length of the 507 00:27:41,980 --> 00:27:44,780 barrel that will allow us to attach to our stand. 508 00:27:48,380 --> 00:27:52,480 Yeah 2 inches that's it. All right we hit our target point now 509 00:27:52,480 --> 00:27:54,680 the hard part getting this off the form. 510 00:27:54,980 --> 00:27:56,980 I don't think it'll be that hard to prep really well. 511 00:27:57,680 --> 00:27:58,680 Okay, all right. 512 00:28:02,080 --> 00:28:06,380 Exuding the confident glow of the well-prepared carry has no 513 00:28:06,480 --> 00:28:07,780 doubts it's going to work. 514 00:28:08,680 --> 00:28:10,480 The boys not so much. 515 00:28:13,080 --> 00:28:16,080 Okay so we have this whole plan right drill a hole we put air 516 00:28:16,180 --> 00:28:18,720 pressure in and it should just kind of slide right off the 517 00:28:18,820 --> 00:28:22,180 floor. We drill the hole with the air pressure and nothing. 518 00:28:22,280 --> 00:28:25,880 So we drill another hole put more air pressure in that's good 519 00:28:25,980 --> 00:28:29,780 moving and it started to move a little bit but still not really 520 00:28:29,880 --> 00:28:30,980 coming off that easily. 521 00:28:33,480 --> 00:28:36,680 Finally we wrap the strap around the cannon for you hold on 522 00:28:36,780 --> 00:28:38,980 with the forklift and then it popped right off. 523 00:28:39,580 --> 00:28:41,680 Oh there you go coming off. 524 00:28:52,480 --> 00:28:53,680 That's great. 525 00:28:54,780 --> 00:28:56,480 The boys had their doubts about us getting the duct tape 526 00:28:56,580 --> 00:28:57,880 cannon off of the metal form. 527 00:28:58,680 --> 00:29:00,980 That is sick. 528 00:29:01,180 --> 00:29:02,480 That's a duct tape cannon. 529 00:29:02,580 --> 00:29:04,080 This might actually work. 530 00:29:05,580 --> 00:29:06,880 That is awesome. 531 00:29:07,580 --> 00:29:08,780 I knew it was going to work. 532 00:29:08,980 --> 00:29:11,380 Now all we need is gunpowder and cannonballs. 533 00:29:14,980 --> 00:29:18,980 Adam and Jamie are kings of the world but inevitably just 534 00:29:19,080 --> 00:29:21,580 like Kate and Leo they're going under. 535 00:29:22,180 --> 00:29:26,480 Well it's not looking so good for duct tape repair of a boat 536 00:29:26,580 --> 00:29:30,380 in situ in a damp conditions as it were. 537 00:29:31,580 --> 00:29:34,180 And it doesn't look like our boat is long for the world here 538 00:29:34,280 --> 00:29:35,380 but we're going to wait it out. 539 00:29:35,880 --> 00:29:38,680 I'm going to go out on a limb here and say we're officially 540 00:29:38,780 --> 00:29:43,380 sinking because like we're sitting in water. 541 00:29:43,580 --> 00:29:43,980 Yeah. 542 00:29:46,280 --> 00:29:50,180 It's pretty clear to me that applied dry duct tape actually 543 00:29:50,180 --> 00:29:52,980 implements a not unreasonable boat repair. 544 00:29:53,280 --> 00:29:55,380 Oh oh oh yeah. 545 00:29:55,980 --> 00:29:58,880 Applied wet not so much here. 546 00:30:00,080 --> 00:30:01,480 I think we can still get back to shore. 547 00:30:02,080 --> 00:30:03,580 Duct tape for boat repair. 548 00:30:04,080 --> 00:30:06,980 Well like a lot of things it doubles in the details. 549 00:30:07,580 --> 00:30:09,580 Have you ever paddled a sinking boat? 550 00:30:09,980 --> 00:30:11,180 No that I haven't done. 551 00:30:11,980 --> 00:30:15,880 With a dry surface a super clean one properly applied it'll 552 00:30:15,980 --> 00:30:17,780 work fairly well for a while. 553 00:30:17,880 --> 00:30:18,780 Anything else? 554 00:30:18,980 --> 00:30:19,680 Forget about it. 555 00:30:21,180 --> 00:30:23,580 Okay I think we're going to need some help in the camera crew. 556 00:30:24,480 --> 00:30:29,580 So leaky boat repair I'm calling it plausible even if it's not ideal. 557 00:30:29,680 --> 00:30:32,780 Well out on the open water I'd rather have this than nothing 558 00:30:32,780 --> 00:30:33,780 by a long shot. 559 00:30:33,980 --> 00:30:37,080 I agree but you know I was thinking why mess around with 560 00:30:37,180 --> 00:30:38,980 patching boats and such nonsense. 561 00:30:38,980 --> 00:30:43,280 Let's up the ante and actually make a boat out of duct tape. 562 00:30:43,580 --> 00:30:44,580 I love it. 563 00:30:44,780 --> 00:30:47,180 I knew you'd find the open water inspiring. 564 00:30:47,380 --> 00:30:48,780 Be sure to bring your life fast. 565 00:30:49,380 --> 00:30:54,380 Yep our salty sea dog Heinemann and Cap and Savage love a nautical 566 00:30:54,380 --> 00:30:55,580 engineering challenge. 567 00:30:56,980 --> 00:31:00,080 They escape Alcatraz in a boat made of raincoats. 568 00:31:00,280 --> 00:31:03,780 They raise the myth panic with ping pong balls. 569 00:31:03,980 --> 00:31:07,180 They've even made a speed boat out of frozen newspapers. 570 00:31:10,180 --> 00:31:14,780 And now a boat made out of duct tape but it won't be just duct 571 00:31:14,780 --> 00:31:15,780 tape surely. 572 00:31:15,980 --> 00:31:19,280 Now because it'd be a little floppy if it was all duct tape 573 00:31:19,580 --> 00:31:23,580 we're going to use steel wire to make a grid to hang the duct 574 00:31:23,580 --> 00:31:24,180 tape on. 575 00:31:25,780 --> 00:31:26,980 It's pretty. 576 00:31:28,580 --> 00:31:30,780 Which just leaves the key ingredient. 577 00:31:31,880 --> 00:31:36,080 Lots and lots of it but is it enough to float a boat. 578 00:31:37,080 --> 00:31:38,880 If you're going to build a boat out of duct tape you need to 579 00:31:38,880 --> 00:31:42,680 think about the duct tape as cloth or like an animal high. 580 00:31:42,880 --> 00:31:44,180 It's kind of like weaving. 581 00:31:45,080 --> 00:31:47,780 In fact that's what Native Americans used to do is build 582 00:31:47,780 --> 00:31:51,080 boats out of animal hide and they would make a lightweight 583 00:31:51,080 --> 00:31:53,180 wood structure that they'd stretch it over. 584 00:31:53,680 --> 00:31:56,980 We're going to do the same thing but instead of wood we're 585 00:31:56,980 --> 00:31:59,280 going to use steel because we can work quicker with it. 586 00:31:59,780 --> 00:32:04,280 Of course otherwise the boat is a pretty normal modern sailboat 587 00:32:04,280 --> 00:32:04,680 design. 588 00:32:07,480 --> 00:32:10,280 With the second layer being applied the cornerstone of their 589 00:32:10,280 --> 00:32:11,880 design should be noted. 590 00:32:12,380 --> 00:32:15,080 It'll be sticky side to sticky side. 591 00:32:15,280 --> 00:32:16,680 That's the last one. 592 00:32:17,880 --> 00:32:18,680 The whole is done. 593 00:32:20,180 --> 00:32:24,180 But they're not quite done yet they need a sale and at a 594 00:32:24,180 --> 00:32:27,980 classic with musters moment we reduce the next hour of hard 595 00:32:27,980 --> 00:32:32,180 work and problem solving to a crispy Jim second montage. 596 00:32:36,180 --> 00:32:39,980 Yeah baby you can keep your duct tape proctucks. 597 00:32:41,980 --> 00:32:45,180 If I was alone on the open sea the last thing I'd ask for 598 00:32:45,180 --> 00:32:49,280 is 23 rolls of duct tape apparently this is enough to 599 00:32:49,280 --> 00:32:53,080 make a boat 690 square feet if you laid each of these rolls 600 00:32:53,080 --> 00:32:56,480 and they would spend the Golden Gate Bridge and soon we're 601 00:32:56,480 --> 00:32:58,480 going to take them sailing next. 602 00:32:59,680 --> 00:33:00,880 It's cannon time. 603 00:33:03,380 --> 00:33:07,580 And then will Adam and Jamie get wet and fail when they set 604 00:33:07,580 --> 00:33:08,080 sail. 605 00:33:08,080 --> 00:33:10,180 Keep going wait wait wait let me get out of the way. 606 00:33:12,880 --> 00:33:13,880 Yeah. 607 00:33:16,180 --> 00:33:18,480 I was put this duct tape to the test. 608 00:33:19,680 --> 00:33:23,080 Harry Grant and Tory are about to find out if you can make a 609 00:33:23,080 --> 00:33:25,680 fully functioning cannon from duct tape. 610 00:33:29,180 --> 00:33:32,280 The test will be a simple performance comparison with a 611 00:33:32,280 --> 00:33:33,580 real steel cannon. 612 00:33:35,880 --> 00:33:39,780 Including muscle velocity range and whether it you know 613 00:33:39,880 --> 00:33:41,480 catastrophically fails. 614 00:33:41,880 --> 00:33:44,680 Now you may recognize this cannon from prison break we try 615 00:33:44,680 --> 00:33:46,680 to launch a prisoner over prison wall. 616 00:33:48,780 --> 00:33:50,880 This time we're going to be using it for a control test 617 00:33:50,880 --> 00:33:54,680 before we fire off our duct tape can it we're going to be using 618 00:33:54,680 --> 00:33:57,280 the same amount of black powder as we did on our straight 619 00:33:57,280 --> 00:33:57,680 cage. 620 00:33:58,280 --> 00:33:59,780 That's 4 second shows. 621 00:34:00,280 --> 00:34:04,080 We placed cones at every 50 yards so we can see just how far 622 00:34:04,080 --> 00:34:05,280 cannonballs travel. 623 00:34:05,780 --> 00:34:07,480 All right that's 500 yards. 624 00:34:07,980 --> 00:34:09,780 I don't think the cannonball going to go much farther than 625 00:34:09,780 --> 00:34:12,780 that you know what and finally to check the speed of the 626 00:34:12,780 --> 00:34:15,680 cannonballs we set up this scale because remember for this 627 00:34:15,680 --> 00:34:18,580 myth to be confirmed it should have similar range similar 628 00:34:18,580 --> 00:34:21,980 speed and most importantly the duct tape cannon cannot blow 629 00:34:21,980 --> 00:34:22,180 up. 630 00:34:22,680 --> 00:34:23,780 All right see you back there. 631 00:34:23,880 --> 00:34:24,280 Okay. 632 00:34:26,180 --> 00:34:30,380 Surely me with the dangerous job with the 4 shotgun shells 633 00:34:30,380 --> 00:34:33,580 worth of black powder in the combustion chamber all that's 634 00:34:33,580 --> 00:34:35,580 left to do is light the fuse. 635 00:34:35,780 --> 00:34:36,680 All right here we go. 636 00:34:38,080 --> 00:34:38,780 And run. 637 00:34:41,280 --> 00:34:42,280 For us. 638 00:34:43,280 --> 00:34:44,080 Yeah. 639 00:34:44,980 --> 00:34:45,580 I'm ready. 640 00:34:45,880 --> 00:34:46,380 We live. 641 00:34:47,780 --> 00:34:51,380 The inexorable hard thumping excitement of the lit fuse 642 00:34:51,480 --> 00:34:53,580 whether it's your first or hundreds. 643 00:34:53,980 --> 00:34:55,280 There's nothing quite like it. 644 00:35:00,180 --> 00:35:00,680 Yeah. 645 00:35:02,580 --> 00:35:04,480 That was great. 646 00:35:04,580 --> 00:35:05,380 Right in the cones. 647 00:35:06,380 --> 00:35:11,380 That's some serious real steel and black powder hardware. 648 00:35:12,080 --> 00:35:15,180 It through the cannonball the full length of the course. 649 00:35:15,380 --> 00:35:16,680 That's like a divot right there. 650 00:35:16,680 --> 00:35:18,780 Like yeah totally in. 651 00:35:20,480 --> 00:35:22,280 It went over 500 yards. 652 00:35:22,780 --> 00:35:25,480 So I reviewed the high speed footage and Tories cannon was 653 00:35:25,480 --> 00:35:28,580 able to fire an 18 and a half pound cannonball at a hundred 654 00:35:28,580 --> 00:35:31,780 95 miles per hour in a distance of 500 yards. 655 00:35:31,980 --> 00:35:34,380 So that is our goal for the duct tape cannon. 656 00:35:34,680 --> 00:35:38,580 But to be honest I will be very happy if our duct tape 657 00:35:38,580 --> 00:35:40,980 creation doesn't explode upon ignition. 658 00:35:44,780 --> 00:35:48,280 Adam and Jamie have set themselves the ultimate duct tape 659 00:35:48,280 --> 00:35:48,880 challenge. 660 00:35:51,180 --> 00:35:53,280 And in the shadow of the Bay Bridge. 661 00:35:55,080 --> 00:35:59,580 Seated the final preparation for stuck on use made in 662 00:35:59,580 --> 00:36:01,680 voyage is just about complete. 663 00:36:01,980 --> 00:36:02,680 It's now or never. 664 00:36:02,680 --> 00:36:03,580 Let's get it to the water. 665 00:36:03,880 --> 00:36:04,180 Yeah. 666 00:36:04,880 --> 00:36:07,280 It's getting close to the moment of truth and all that's 667 00:36:07,280 --> 00:36:11,080 separating us from Davey Jones's locker is a little bit of 668 00:36:11,080 --> 00:36:11,580 tape. 669 00:36:12,180 --> 00:36:12,680 That's good. 670 00:36:13,180 --> 00:36:15,480 I don't know whether it's going to work or not but if it 671 00:36:15,480 --> 00:36:18,180 doesn't I'm getting wet and cold and I'm motivated not to 672 00:36:18,180 --> 00:36:23,080 do that as unlikely as it seems and surely in a world first 673 00:36:23,280 --> 00:36:25,680 Adam and Jamie are attempting to sail. 674 00:36:25,680 --> 00:36:26,680 Let me get out of the way. 675 00:36:26,980 --> 00:36:27,580 There we go. 676 00:36:28,080 --> 00:36:30,280 A boat made out of duct tape. 677 00:36:34,080 --> 00:36:37,880 And despite the chaotic start it appears the boat really does 678 00:36:37,880 --> 00:36:38,280 float. 679 00:36:38,680 --> 00:36:39,280 Got the tiller. 680 00:36:40,280 --> 00:36:41,380 You see any water down there? 681 00:36:42,680 --> 00:36:43,480 Not a drop. 682 00:36:44,680 --> 00:36:48,180 For liminary reports so that it's sea worthy permission to 683 00:36:48,180 --> 00:36:48,780 climb aboard. 684 00:36:48,980 --> 00:36:49,880 Come on in. 685 00:36:50,280 --> 00:36:51,180 All right here we go. 686 00:36:52,980 --> 00:36:53,280 I'm in. 687 00:36:54,480 --> 00:36:55,180 And we're away. 688 00:36:58,480 --> 00:36:59,480 Oh this is a life. 689 00:36:59,480 --> 00:36:59,780 Hey. 690 00:37:00,980 --> 00:37:01,680 So far. 691 00:37:02,580 --> 00:37:04,280 Understandable skepticism. 692 00:37:04,280 --> 00:37:05,480 We don't have much wind. 693 00:37:05,780 --> 00:37:09,680 But even glass half empty Heidemann try not to put your feet 694 00:37:09,680 --> 00:37:10,480 through the bottom. 695 00:37:11,180 --> 00:37:14,480 Relaxes as they catch a draft get underway. 696 00:37:14,580 --> 00:37:15,580 This thing's holding water man. 697 00:37:15,580 --> 00:37:17,280 I don't see a drop of water. 698 00:37:20,380 --> 00:37:22,080 This is actually working. 699 00:37:22,280 --> 00:37:22,980 There we go. 700 00:37:23,680 --> 00:37:24,280 Oh yeah. 701 00:37:26,580 --> 00:37:27,880 Hey give me some skin there. 702 00:37:30,080 --> 00:37:30,480 Ow. 703 00:37:30,480 --> 00:37:31,180 Ow. 704 00:37:31,280 --> 00:37:32,980 Coming up next on Mythbusters. 705 00:37:32,980 --> 00:37:35,380 Is this can I get a fire or explode. 706 00:37:36,380 --> 00:37:38,080 You guys might want to get back on this one. 707 00:37:48,180 --> 00:37:49,980 It went over 500 yards. 708 00:37:51,180 --> 00:37:56,380 Tori Granton carries real steel cannon can now it's time to 709 00:37:56,380 --> 00:38:00,580 see what the duct tape can do now we have a target for our 710 00:38:00,680 --> 00:38:01,580 duct tape cannon. 711 00:38:01,980 --> 00:38:04,080 I'm hoping we get the same sort of distance out of this 712 00:38:04,080 --> 00:38:06,180 because this be a really nice addition to our arsenal. 713 00:38:06,580 --> 00:38:08,780 But the guys are getting ahead of themselves. 714 00:38:08,880 --> 00:38:10,980 They seem to have a sticky problem. 715 00:38:12,080 --> 00:38:15,680 One of the pros and the cons of duct tape is the fact that 716 00:38:15,680 --> 00:38:17,780 it is so flexible and malleable. 717 00:38:17,980 --> 00:38:21,280 So it's great that we can actually make a complex shape 718 00:38:21,280 --> 00:38:22,180 like a cannon. 719 00:38:22,480 --> 00:38:25,380 But the big question is can it hold that shape long enough 720 00:38:25,380 --> 00:38:26,980 to shoot off one of our cannonballs. 721 00:38:27,180 --> 00:38:27,880 Excellent. 722 00:38:28,580 --> 00:38:30,780 In order to fire off this cannon it is going to be tricky 723 00:38:30,780 --> 00:38:32,980 because loading it we got to move quick. 724 00:38:35,380 --> 00:38:38,180 As soon as we pull off this plug the duct tape cannon is 725 00:38:38,180 --> 00:38:39,080 going to lose its shape. 726 00:38:39,580 --> 00:38:42,180 I mean as strong as the duct tape is it's not rigid. 727 00:38:44,980 --> 00:38:46,180 That's a tight fit. 728 00:38:46,380 --> 00:38:48,480 We might have a bomb here instead of a cannon. 729 00:38:49,380 --> 00:38:51,980 So if it loses its shape there's a potential that the ball 730 00:38:51,980 --> 00:38:53,480 gets stuck inside the barrel. 731 00:38:54,880 --> 00:38:56,780 This is just gotten a lot scarier. 732 00:38:57,080 --> 00:38:59,280 If that happens it's going to trap all that pressure from 733 00:38:59,280 --> 00:39:00,280 the burning black powder. 734 00:39:00,480 --> 00:39:02,780 Instead of getting a cannon firing off we're going to get 735 00:39:02,780 --> 00:39:03,880 a giant explosion. 736 00:39:04,380 --> 00:39:04,980 That would be okay. 737 00:39:05,680 --> 00:39:09,480 When catastrophic failure equals an explosion. 738 00:39:09,480 --> 00:39:12,080 Lighting it in three, two, one. 739 00:39:12,280 --> 00:39:14,880 It's a win-win as far as Tori's concerned. 740 00:39:15,080 --> 00:39:15,780 Get out of here. 741 00:39:15,780 --> 00:39:16,880 This would be dangerous. 742 00:39:17,080 --> 00:39:17,680 Run! 743 00:39:18,280 --> 00:39:20,280 Alright use this late it looks good. 744 00:39:20,380 --> 00:39:21,280 So this is it. 745 00:39:21,880 --> 00:39:25,480 Can a duct tape cannon withstand and brace the force 746 00:39:25,480 --> 00:39:29,980 required to throw an 18 and a half pound cannonball 500 747 00:39:29,980 --> 00:39:33,980 yards or will the soft and malleable barrel grip the 748 00:39:33,980 --> 00:39:36,180 ball and cause it to bomb. 749 00:39:37,580 --> 00:39:38,380 It's going to be soon. 750 00:39:38,780 --> 00:39:39,380 It worked! 751 00:39:39,380 --> 00:39:40,380 It didn't blow up! 752 00:39:41,380 --> 00:39:43,380 We need a duct tape cannon! 753 00:39:43,380 --> 00:39:44,380 I love it! 754 00:39:44,380 --> 00:39:44,880 I love it! 755 00:39:45,380 --> 00:39:46,380 Let's shoot another one off. 756 00:39:47,380 --> 00:39:48,380 It worked. 757 00:39:49,380 --> 00:39:52,380 At a happier bunch of ballistic mythbusters you're 758 00:39:52,380 --> 00:39:53,380 unlikely to see. 759 00:39:53,380 --> 00:39:54,380 It's gorgeous. 760 00:39:54,380 --> 00:39:55,380 Look at that. 761 00:39:55,380 --> 00:39:56,380 There's no deformation. 762 00:39:56,380 --> 00:39:58,380 Everything is still pretty much intact. 763 00:39:58,380 --> 00:40:00,380 And we launched the ball pretty far. 764 00:40:00,380 --> 00:40:02,380 But exactly how far? 765 00:40:02,380 --> 00:40:05,380 That is cool! 766 00:40:05,380 --> 00:40:08,380 It went like 125 yards. 767 00:40:08,380 --> 00:40:11,380 So according to my calculations our duct tape cannon 768 00:40:11,380 --> 00:40:15,380 fired the cannonball at 136 miles per hour which is 769 00:40:15,380 --> 00:40:18,380 only a 30% reduction over Tori's cannon. 770 00:40:18,380 --> 00:40:20,380 It suffered a little bit in the distance it only went 771 00:40:20,380 --> 00:40:23,380 a quarter of the way but that's still 125 yards. 772 00:40:23,380 --> 00:40:25,380 And just bear this in mind. 773 00:40:25,380 --> 00:40:27,380 We're going to be doing a little bit of a test. 774 00:40:27,380 --> 00:40:29,380 The distance only went a quarter of the way but that's 775 00:40:29,380 --> 00:40:31,380 still 125 yards. 776 00:40:31,380 --> 00:40:32,380 And just bear this in mind. 777 00:40:32,380 --> 00:40:34,380 That cannonball is 18 and a half pounds. 778 00:40:34,380 --> 00:40:37,380 One cannon is made out of solid steel. 779 00:40:37,380 --> 00:40:40,380 And the other cannon is made out of cloth back 780 00:40:40,380 --> 00:40:43,380 polyethylene coated rubberized adhesive tape. 781 00:40:44,380 --> 00:40:47,380 So performance wise it didn't quite match up. 782 00:40:47,380 --> 00:40:50,380 But there's no doubt it's a fully functioning cannon. 783 00:40:51,380 --> 00:40:53,380 And with a fat lady warming her tonsils for the 784 00:40:53,380 --> 00:40:57,380 confirmation area the guys load up one more time. 785 00:40:57,380 --> 00:40:59,380 You know, just to be sure. 786 00:40:59,380 --> 00:41:00,380 I always get really excited when we actually get to confirm 787 00:41:00,380 --> 00:41:02,380 a myth because we always are busting them. 788 00:41:02,380 --> 00:41:04,380 Overwhelmingly we bust myths. 789 00:41:04,380 --> 00:41:07,380 This one, duct tape cannon is actually confirmed. 790 00:41:09,380 --> 00:41:12,380 And now we have a duct tape cannon. 791 00:41:13,380 --> 00:41:15,380 You know what that looks like to me? 792 00:41:15,380 --> 00:41:16,380 Confirmed. 793 00:41:16,380 --> 00:41:17,380 Yeah absolutely. 794 00:41:17,380 --> 00:41:20,380 It didn't go as far as the regular cannon but it did work. 795 00:41:20,380 --> 00:41:21,380 That's right. 796 00:41:21,380 --> 00:41:23,380 It exploded and it went the distance. 797 00:41:23,380 --> 00:41:24,380 Confirmed. 798 00:41:24,380 --> 00:41:25,380 Woo! 799 00:41:25,380 --> 00:41:26,380 More duct tape. 800 00:41:26,380 --> 00:41:27,380 I love it. 801 00:41:27,380 --> 00:41:29,380 Duct tape and black powder. 802 00:41:29,380 --> 00:41:30,380 Two of my favorite things. 803 00:41:30,380 --> 00:41:33,380 And here on MythBusters we figure out a way to bring them together 804 00:41:33,380 --> 00:41:35,380 in the form of a cannon. 805 00:41:35,380 --> 00:41:37,380 And a cannon that worked. 806 00:41:37,380 --> 00:41:38,380 That didn't explode. 807 00:41:38,380 --> 00:41:39,380 We confirm this. 808 00:41:40,380 --> 00:41:42,380 I just can't tell you how happy I am. 809 00:41:43,380 --> 00:41:44,380 Good times everybody. 810 00:41:45,380 --> 00:41:46,380 Good times. 811 00:41:52,380 --> 00:41:58,380 If you're like us and you can't get enough black powder and duct tape 812 00:41:58,380 --> 00:42:02,380 go to discovery.com slash myth busters and check it out. 813 00:42:05,380 --> 00:42:09,380 You could say Adam and Jamie are enjoying themselves. 814 00:42:09,380 --> 00:42:12,380 Scotty, I need more power. 815 00:42:12,380 --> 00:42:17,380 I'm giving it all we got captain but I just can't push it any further. 816 00:42:17,380 --> 00:42:21,380 They've managed to make a sailing boat out of duct tape. 817 00:42:23,380 --> 00:42:27,380 I gotta say we knew that duct tape, duct together was reasonably waterproof 818 00:42:27,380 --> 00:42:29,380 but it also has a really nice tensile strength. 819 00:42:29,380 --> 00:42:32,380 It's made of just a fabulous skin on this boat. 820 00:42:32,380 --> 00:42:36,380 I think the key to it is making one nice piece of fabric out of the whole skin. 821 00:42:36,380 --> 00:42:37,380 Hesed did. 822 00:42:37,380 --> 00:42:41,380 Hesed was miles ahead of just putting tape on any which way. 823 00:42:41,380 --> 00:42:44,380 So with a couple of days and a couple of dozen rolls of duct tape 824 00:42:44,380 --> 00:42:48,380 we sent ourselves the task of making a viable sea worthy vessel. 825 00:42:48,380 --> 00:42:52,380 And while it's true that failure is always an option 826 00:42:52,380 --> 00:42:55,380 I have to say success is pretty sweet. 827 00:42:55,380 --> 00:43:00,380 And as far as Adam's concerned it's a financial success as well. 828 00:43:00,380 --> 00:43:02,380 Dude I can't stay out here all day. 829 00:43:02,380 --> 00:43:04,380 This boat is not going to fail anytime soon. 830 00:43:04,380 --> 00:43:07,380 I don't think I have to pay 500 bucks. 831 00:43:07,380 --> 00:43:09,380 You're absolutely right. 832 00:43:10,380 --> 00:43:12,380 I love being like that. 833 00:43:13,380 --> 00:43:15,380 Well Adam you know what they say. 834 00:43:15,380 --> 00:43:16,380 Yeah. 835 00:43:16,380 --> 00:43:18,380 Whatever floats your boat. 836 00:43:18,380 --> 00:43:21,380 Somehow didn't think it was going to be duct tape though.