1 00:00:00,000 --> 00:00:09,440 On tonight's hair-raising episode of Mythbusters, 2 00:00:09,440 --> 00:00:17,560 Adam and Jamie put Sinema's most famous chop fest to the test. 3 00:00:17,560 --> 00:00:23,120 We find out, could a real shark be as strong as Spielberg's Leviathan? 4 00:00:23,120 --> 00:00:25,560 Will punching a shark save your skin? 5 00:00:25,560 --> 00:00:26,960 Come on, let's go! 6 00:00:26,960 --> 00:00:30,360 And will a bullet blow a scuba tank sky high? 7 00:00:45,640 --> 00:00:51,360 Who can forget Jaws, the movie that made a generation think twice about taking a bath? 8 00:00:56,520 --> 00:01:03,640 In Steven Spielberg's classic, a big fish with a big dorsal turns swimmers into tasty morsels, 9 00:01:03,640 --> 00:01:08,320 before finally being blown out of the water by an exploding scuba tank. 10 00:01:08,320 --> 00:01:09,560 Smile, you son of a... 11 00:01:14,440 --> 00:01:18,320 We're going to see if punching a shark will actually stop it from attacking you. 12 00:01:19,880 --> 00:01:21,800 We're going to test how strong sharks are. 13 00:01:21,800 --> 00:01:30,800 And then, my personal favorite, we're going to see if shooting a scuba tank with a bullet will actually make it explode. 14 00:01:41,200 --> 00:01:47,200 The massive great white shark in Jaws exhibits almost supernatural strength and stamina. 15 00:01:47,960 --> 00:01:51,800 It keeps three flotation barrels submerged for hours on end. 16 00:01:56,600 --> 00:02:01,200 It yanks Quinn's boat, the orca, backwards while the engine's running. 17 00:02:01,200 --> 00:02:03,800 It's impossible! It's impossible! 18 00:02:06,400 --> 00:02:11,600 It demolishes a shark cage, and it rams a hole in the orca's hull. 19 00:02:11,600 --> 00:02:14,000 But is any of it feasible? 20 00:02:14,400 --> 00:02:20,400 Adam and Jamie will put each of those scenarios to the test in true Mythbusters style. 21 00:02:25,200 --> 00:02:29,000 The movie shark displays two different kinds of strength. 22 00:02:29,000 --> 00:02:35,200 Pulling down the barrels and towing the boat backwards are examples of continuous force. 23 00:02:35,200 --> 00:02:38,800 Ramming the cage and the boat, that's shock force. 24 00:02:39,600 --> 00:02:41,200 Adam, what are you doing? 25 00:02:43,000 --> 00:02:51,400 I'm trying to apply some biomechanical force to this rope to see if there's some kind of proportion to my body weight 26 00:02:51,400 --> 00:02:57,400 and how much force I can apply on this rope horizontally and what a shark's body weight is underwater 27 00:02:57,400 --> 00:03:01,200 and what it can apply to a fishing line, for instance. 28 00:03:01,200 --> 00:03:06,600 By using shock force, Adam and Jamie can exert almost 10 times their body weight. 29 00:03:06,600 --> 00:03:09,400 You made a thousand pounds of lunch. 30 00:03:09,400 --> 00:03:13,400 But on a constant pull, they muster barely half. 31 00:03:13,400 --> 00:03:18,000 Is it the same for a shark? Time to collect some hard data. 32 00:03:18,000 --> 00:03:27,600 And so we find them making pre-dawn preparations for a little jaunt, armed with sealed decoys and a 20,000 pound force gauge. 33 00:03:27,600 --> 00:03:33,200 The next stage basically involves, we'll have our decoys out in the water and we're hoping that a shark will actually grab one. 34 00:03:33,200 --> 00:03:39,400 And if he does, we're going to have our big scale on the end of it so we can maybe go right to the source 35 00:03:39,400 --> 00:03:43,400 and find out how much pulling strength a shark might actually have. 36 00:03:43,400 --> 00:03:47,400 It's not guaranteed by any means, but this is the best place to find out. 37 00:03:48,400 --> 00:03:51,400 But it doesn't look like Adam will find out anything. 38 00:03:51,400 --> 00:03:53,400 So much for the old sea dog. 39 00:03:53,400 --> 00:03:55,400 Sick as a dog, more like it. 40 00:03:55,400 --> 00:04:00,400 The Farallon Islands lie 27 miles off the coast of San Francisco. 41 00:04:00,600 --> 00:04:04,600 There is jagged as the teeth of the great whites that prowl these waters. 42 00:04:06,600 --> 00:04:10,600 With Adam still out of action, Jamie deploys the decoys. 43 00:04:12,600 --> 00:04:16,600 Then there's nothing to do but wait and talk big fish. 44 00:04:17,600 --> 00:04:20,600 Sean Vansomeren is an expert on great whites. 45 00:04:20,600 --> 00:04:23,600 He's seen their incredible power and speed. 46 00:04:23,800 --> 00:04:30,800 I've seen two and a half ton white sharks come flying out of the water and bite big. 47 00:04:30,800 --> 00:04:34,800 50-60 pound bites out of elephant seals and things like that. 48 00:04:34,800 --> 00:04:37,800 Things that impress me as a hugely powerful animal. 49 00:04:37,800 --> 00:04:40,800 A great white speed has never been caught. 50 00:04:40,800 --> 00:04:47,800 However, during aerial maneuvers like this, it's estimated they travel between 20 and 25 miles per hour. 51 00:04:53,800 --> 00:05:00,800 Unfortunately for the mythbusters, the Farallon sharks are keeping a much lower profile. 52 00:05:02,800 --> 00:05:05,800 Maybe the decoys aren't to their taste. 53 00:05:05,800 --> 00:05:07,800 Looks like it's on to plan B. 54 00:05:08,800 --> 00:05:10,800 When Adam recovers, that is. 55 00:05:10,800 --> 00:05:14,800 Well Adam, we're just back from the Farallons and we have a fundamental problem 56 00:05:14,800 --> 00:05:17,800 testing the strength of a great white. 57 00:05:17,800 --> 00:05:21,800 We just can't practically or politically control the amount of white sharks. 58 00:05:22,000 --> 00:05:25,000 Practically or politically or ethically do it. 59 00:05:25,000 --> 00:05:29,000 There's only a few hundred of them along the entire west coast of the United States. 60 00:05:29,000 --> 00:05:34,000 Well, I still think it's important to use a real animal to get some shark strength data. 61 00:05:34,000 --> 00:05:39,000 So perhaps when we go to the Bahamas and we're dealing with some other species of sharks, 62 00:05:39,000 --> 00:05:44,000 we can do some of these tests with another species, but real sharks nonetheless 63 00:05:44,000 --> 00:05:46,000 and try and get some good results out of that. 64 00:05:46,000 --> 00:05:48,000 The Bahamas. 65 00:05:48,000 --> 00:05:51,000 Looks like the gags offer a little vacation. 66 00:05:51,200 --> 00:05:53,200 Hello. 67 00:05:55,200 --> 00:05:59,200 The Bahamas are a chain of islands that lie off the southeast of Florida. 68 00:05:59,200 --> 00:06:02,200 The waters team with Caribbean reef sharks. 69 00:06:02,200 --> 00:06:07,200 At a maximum length of around six feet, they don't bear much relation to the movie monster, 70 00:06:07,200 --> 00:06:11,200 but they might still provide some good shark strength data. 71 00:06:13,200 --> 00:06:17,200 The guys from the Bimini Biological Research Station have agreed to help. 72 00:06:21,000 --> 00:06:34,000 This time, Adam's managing to keep his lunch down. 73 00:06:34,000 --> 00:06:41,000 The mythbusters know this brief trip won't yield definitive answers. 74 00:06:41,000 --> 00:06:44,000 Still, some figures are better than none. 75 00:06:44,000 --> 00:06:48,000 The line is attached to a 150-pound force gauge. 76 00:06:48,000 --> 00:06:52,000 When a shark takes the bait, they can measure the amount of force. 77 00:06:52,000 --> 00:06:55,000 Oh, nope, nope, nope. There we go. Come on, come on. 78 00:06:55,000 --> 00:06:57,000 Fight, fight, fight. 79 00:06:57,000 --> 00:07:00,000 There we go. That's it. Fight, we're fighting. 80 00:07:00,000 --> 00:07:05,000 I got a shock load of about 30 pounds on him, but only a steady pressure of maybe 15. 81 00:07:07,000 --> 00:07:09,000 Each shark is brought in and weighed. 82 00:07:13,000 --> 00:07:15,000 Okay, what does it say, Jamie? 83 00:07:15,000 --> 00:07:17,000 We had 45 pounds. 84 00:07:17,000 --> 00:07:24,000 Minus 15 pounds for the rig, which means this little guy exerts a shock force of about his own weight. 85 00:07:29,000 --> 00:07:31,000 Yeah, he's got it, he's got it. 86 00:07:31,000 --> 00:07:36,000 Shack load of 70. Steady pull, steady pull. 87 00:07:36,000 --> 00:07:39,000 30, 30. 88 00:07:39,000 --> 00:07:44,000 Okay, don't let him give it. Don't let him get under there. 89 00:07:45,000 --> 00:07:47,000 There we go. Good. 90 00:07:47,000 --> 00:07:49,000 Alright, he's coming in. 91 00:07:49,000 --> 00:07:51,000 He's in place. 92 00:07:51,000 --> 00:07:53,000 Are we ready? 93 00:07:53,000 --> 00:07:55,000 Okay, back is cinched. 94 00:07:57,000 --> 00:07:59,000 Let it go. 95 00:07:59,000 --> 00:08:02,000 Okay, now, now's good for the rigging. 96 00:08:02,000 --> 00:08:04,000 There you go. That's 70 pounds right there. 97 00:08:04,000 --> 00:08:06,000 Okay, so minus 15. 98 00:08:06,000 --> 00:08:08,000 Alright. 99 00:08:08,000 --> 00:08:13,000 So again, he's about pulling his own weight, which is what one would expect. 100 00:08:14,000 --> 00:08:20,000 The rule of thumb seems to be that sharks can pull no more than their own weight on a shock load, 101 00:08:20,000 --> 00:08:24,000 and about 30% of their weight on a continuous pull. 102 00:08:24,000 --> 00:08:26,000 So you're ready to go after that big hammerhead now? 103 00:08:26,000 --> 00:08:27,000 Yeah. 104 00:08:27,000 --> 00:08:32,000 The guys will use those two figures as the basis of their shark strength experiments, 105 00:08:32,000 --> 00:08:34,000 which they'll carry out back in San Francisco. 106 00:08:34,000 --> 00:08:38,000 But first, they have a jab at another jaw's myth. 107 00:08:43,000 --> 00:08:47,000 In the film's climax, the marauding great white backs off briefly 108 00:08:47,000 --> 00:08:50,000 after being whacked on the nose with a scuba tank. 109 00:08:50,000 --> 00:08:55,000 But would that really deter a 25-foot fish intent on eating you? 110 00:08:56,000 --> 00:08:58,000 What do you got behind your back? 111 00:08:58,000 --> 00:09:02,000 Well, the myth is that if you're attacked by a shark and you punch it in the nose, 112 00:09:02,000 --> 00:09:06,000 or you jab it in the gills, then you'll frighten it away. 113 00:09:07,000 --> 00:09:13,000 You know, I can't really come up with a way I'd like to test this one. 114 00:09:13,000 --> 00:09:18,000 Well, actually I have an idea, and that would be to take Buster, our crash test dummy, 115 00:09:18,000 --> 00:09:24,000 out into shark-infested waters, cover him with fish offal, like guts and stuff, 116 00:09:24,000 --> 00:09:28,000 and have him fend off the sharks with some kind of punching mechanism. 117 00:09:28,000 --> 00:09:31,000 That actually seems like a pretty good plan, Jamie. 118 00:09:31,000 --> 00:09:34,000 But you know, a lot's changed since Jaws came out. 119 00:09:34,000 --> 00:09:38,000 A lot of species of sharks are endangered, and I don't think we should just go 120 00:09:38,000 --> 00:09:42,000 mechanically smacking away at them willy-nilly. 121 00:09:42,000 --> 00:09:46,000 I think we really need to perhaps do some tests using our high-speed camera 122 00:09:46,000 --> 00:09:50,000 to see how hard a human can punch and not really exceed that amount. 123 00:09:50,000 --> 00:09:54,000 We don't want to hurt any sharks during the making of this show. 124 00:09:55,000 --> 00:09:57,000 It's a very real concern. 125 00:09:57,000 --> 00:10:03,000 A shark snout contains a finely tuned bioelectrical system to help them hunt. 126 00:10:04,000 --> 00:10:09,000 Tiny receptors on the nose detect electrical signals from potential prey. 127 00:10:09,000 --> 00:10:11,000 So could Jaws be right? 128 00:10:11,000 --> 00:10:14,000 Is a shark's nose its glass jaw? 129 00:10:16,000 --> 00:10:20,000 What we're about to do is to test the force of a human punch. 130 00:10:20,000 --> 00:10:23,000 Adam's going to try and punch me, and before he does that, 131 00:10:23,000 --> 00:10:28,000 I'm going to put on this protective suit we call the Redman suit, because it's red. 132 00:10:30,000 --> 00:10:31,000 Oh, okay. 133 00:10:34,000 --> 00:10:38,000 Of course, Jamie doesn't need to wear the whole outfit for the test, 134 00:10:38,000 --> 00:10:43,000 but if there's one thing the Mythbusters love, it's a good dress-up. 135 00:10:44,000 --> 00:10:46,000 Are you ready? 136 00:10:54,000 --> 00:10:57,000 Uh, guys, when you've quite finished... 137 00:10:58,000 --> 00:10:59,000 Oh! 138 00:11:02,000 --> 00:11:05,000 Okay, it's time for Adam to live his dream. 139 00:11:05,000 --> 00:11:07,000 Give me your breast rock! Come on! 140 00:11:07,000 --> 00:11:12,000 He gets to punch Jamie for the high-speed camera, all in the name of science. 141 00:11:12,000 --> 00:11:13,000 All right. 142 00:11:15,000 --> 00:11:17,000 Three, two, one. 143 00:11:18,000 --> 00:11:20,000 That was okay, wasn't it? 144 00:11:20,000 --> 00:11:21,000 Yeah, it wasn't bad. 145 00:11:21,000 --> 00:11:22,000 Okay, ready? 146 00:11:24,000 --> 00:11:26,000 That was a hard one. 147 00:11:27,000 --> 00:11:29,000 Three, two, one. 148 00:11:30,000 --> 00:11:34,000 Adam's fastest punch is clocked at 20 miles per hour. 149 00:11:34,000 --> 00:11:37,000 Now we're going to do force. How much force is behind those punches? 150 00:11:37,000 --> 00:11:39,000 How are we going to do that? 151 00:11:39,000 --> 00:11:43,000 I was thinking if we took something like a sandbag, a large bag of sand, 152 00:11:43,000 --> 00:11:48,000 and we hit it and saw how far it swung, and we were able to replicate that swing, 153 00:11:48,000 --> 00:11:49,000 we'd have something pretty accurate. 154 00:11:49,000 --> 00:11:52,000 One of Buster's thighs makes a good punching bag. 155 00:11:52,000 --> 00:11:54,000 Off the end of the scale. 156 00:11:54,000 --> 00:11:56,000 At the scale there, Rocky. 157 00:11:56,000 --> 00:12:01,000 Force is mass times acceleration. Buster's thigh weighs 10 pounds. 158 00:12:01,000 --> 00:12:06,000 Jamie's punch moves that 10 pounds, 37 inches, in a third of a second. 159 00:12:06,000 --> 00:12:12,000 All right, Jamie. So when I threw my punch, my best speed was about 20 miles an hour. 160 00:12:12,000 --> 00:12:18,000 And when you actually punched the leg meat here, you made it move about three feet with your punch. 161 00:12:18,000 --> 00:12:23,000 Yeah, as long as we recorded all of the exact placements of everything, the camera, 162 00:12:23,000 --> 00:12:27,000 the distance traveled and everything, we should be able to replicate it or try to. 163 00:12:27,000 --> 00:12:31,000 Coming up, how great was the great white in Jaws? 164 00:12:31,000 --> 00:12:34,000 Could a real shark be as strong? 165 00:12:34,000 --> 00:12:40,000 And Buster gets set to go a few rounds with some denizens of the deep. 166 00:12:40,000 --> 00:12:44,000 We've got a robot in the water. He's stuffed with tuna. 167 00:12:44,000 --> 00:12:47,000 And it's just another day here with Buster's. 168 00:12:54,000 --> 00:12:59,000 It's Jaws' night. The Mythbusters are putting some scenes from the movie to the test. 169 00:12:59,000 --> 00:13:02,000 Get me out! 170 00:13:02,000 --> 00:13:10,000 Jamie's turning Buster into a punching machine to test the myth that a sharp biff on a shark's nose will send it packing. 171 00:13:12,000 --> 00:13:20,000 The plan is to build a pair of aluminium arms with specially molded fists that will be powered by compressed air from a scuba tank. 172 00:13:21,000 --> 00:13:26,000 Then Buster will be chummed to the eyeballs and dropped in the ocean. 173 00:13:27,000 --> 00:13:32,000 When a curious shark approaches, he'll come out swinging. 174 00:13:32,000 --> 00:13:39,000 So that'll be the most upward pose. 175 00:13:53,000 --> 00:13:59,000 Here that little chuckle. You always get that when things are going to plan. 176 00:13:59,000 --> 00:14:02,000 And there you go. 177 00:14:02,000 --> 00:14:07,000 Well, that's a punch. It works. 178 00:14:07,000 --> 00:14:16,000 And according to specs, it has plenty of power. It'll be mounted on the shoulder like so. 179 00:14:18,000 --> 00:14:23,000 Just one thing. Those shoulder pads are so 1985. 180 00:14:23,000 --> 00:14:25,000 He looks like a super hero. 181 00:14:26,000 --> 00:14:31,000 Let's see if his air powered fists can exert the same force as Jamie. 182 00:14:31,000 --> 00:14:33,000 Get ready. 183 00:14:35,000 --> 00:14:37,000 That's pretty fast. 184 00:14:37,000 --> 00:14:40,000 He made a little to your right, now the other way. 185 00:14:42,000 --> 00:14:43,000 There you go. 186 00:14:43,000 --> 00:14:46,000 I'd say we may well be in the ballpark of... 187 00:14:46,000 --> 00:14:52,000 It looks like we are in the ballpark. At ADPSI, it went about three quarters of the way up the scale. 188 00:14:52,000 --> 00:14:55,000 And you went all the way to the end of that scale. 189 00:14:55,000 --> 00:15:00,000 So more pressure. We probably get it to go a little faster. We just need to solve the valve problem. 190 00:15:00,000 --> 00:15:03,000 The problem currently is with the valve. 191 00:15:03,000 --> 00:15:08,000 And while it's a perfect valve that's nothing wrong with the valve for some reason, 192 00:15:08,000 --> 00:15:15,000 it's not designed to exhaust the air that needs to come out the far side of these actuators 193 00:15:15,000 --> 00:15:18,000 whenever we work them back and forth. 194 00:15:18,000 --> 00:15:22,000 In other words, air isn't being bled out of the system fast enough. 195 00:15:22,000 --> 00:15:27,000 Now, Jamie wanted to keep the rig simple. One lever, one pull, one punch. 196 00:15:27,000 --> 00:15:30,000 But it doesn't look like that will be an option. 197 00:15:30,000 --> 00:15:36,000 You actually have to do it as a two-stage process to be able to open and bleed things in the right way 198 00:15:36,000 --> 00:15:38,000 to get the air to flow quickly. 199 00:15:38,000 --> 00:15:41,000 The problem with doing it this way is that it's a little bit like patting your head 200 00:15:41,000 --> 00:15:43,000 and rubbing your stomach at the same time. 201 00:15:43,000 --> 00:15:50,000 There's, you know, an additional thing going on and we're going to be focusing on punching the shark on a cue. 202 00:15:50,000 --> 00:15:52,000 So I was trying to avoid it. 203 00:15:52,000 --> 00:15:59,000 While Jamie sorts out his rig, Adam tackles some more jaws' myths. 204 00:15:59,000 --> 00:16:05,000 Like could a real shark possess the same strength as the great white in jaws? 205 00:16:05,000 --> 00:16:08,000 There's four separate tests to try out. 206 00:16:08,000 --> 00:16:11,000 Each one taken from a scene in the movie. 207 00:16:14,000 --> 00:16:22,000 I've been given responsibility to build a shark cage that exactly matches the one from the film 208 00:16:22,000 --> 00:16:26,000 in every detail, height, weight, size, thickness, everything. 209 00:16:26,000 --> 00:16:30,000 What we want to do is actually ram this with a fake shark. 210 00:16:30,000 --> 00:16:35,000 We want to see if a real shark could actually destroy the cage like Jaws did in the movie. 211 00:16:38,000 --> 00:16:41,000 I know there are seven of these bars. 212 00:16:41,000 --> 00:16:43,000 I know they're an inch wide each. 213 00:16:43,000 --> 00:16:49,000 I've actually done a fair amount of this in movies where they often ask you to rebuild a prop from a previous scene 214 00:16:49,000 --> 00:16:51,000 but they don't have the prop. 215 00:16:51,000 --> 00:16:54,000 You've got to look at the scene and sort of figure out exactly how big everything is. 216 00:16:54,000 --> 00:16:56,000 So I'm doing that looking at a bunch of stuff from Jaws. 217 00:16:56,000 --> 00:17:01,000 The other thing they're going to need for the strength tests is a shark-shaped battering ram. 218 00:17:01,000 --> 00:17:04,000 Question is, how big should it be? 219 00:17:04,000 --> 00:17:09,000 The great white in jaws is said to be 25 feet long and 6,000 pounds. 220 00:17:09,000 --> 00:17:12,000 But science has no record of a shark that big. 221 00:17:12,000 --> 00:17:19,000 One of the most important facts for us to get right for the shark strength experiment is how big do great whites actually get. 222 00:17:19,000 --> 00:17:22,000 And, you know, the size estimates are all over the map. 223 00:17:22,000 --> 00:17:27,000 We've got one from 1945 in Cuba, 21 feet long, 7,000 pounds. 224 00:17:27,000 --> 00:17:32,000 Further analysis of the photograph shows that it was more like 16 feet long and they never actually weighed it. 225 00:17:32,000 --> 00:17:37,000 And then there was Ralph Collier who wrote a book called Shark Attacks of the 20... 226 00:17:37,000 --> 00:17:41,000 17 and 19 feet long, about 3,000 pounds. 227 00:17:41,000 --> 00:17:46,000 That's a really good average for a mature female great white shark. 228 00:17:46,000 --> 00:17:49,000 There's no time for anatomical accuracy. 229 00:17:49,000 --> 00:17:56,000 Instead, they'll cast a shark head and the body will be a length of pipe weighing 3,000 pounds. 230 00:17:56,000 --> 00:18:02,000 Step one, Carrie carves a great white head from a great white block of foam, 231 00:18:02,000 --> 00:18:06,000 which the build team then uses to make a fiberglass mold. 232 00:18:07,000 --> 00:18:16,000 Meanwhile, Adams finding out that building a shark cage from scratch is no walk in the park. 233 00:18:16,000 --> 00:18:19,000 I'm a little zoned out. 234 00:18:19,000 --> 00:18:24,000 I'm more than halfway there in the machining of these things. 235 00:18:24,000 --> 00:18:42,000 There we have a 100% accurate prop reproduction of the jaws shark cage. 236 00:18:43,000 --> 00:18:45,000 Oh, she goes! 237 00:18:49,000 --> 00:18:56,000 So I guess now the question is, what kind of shark abuse will this puppy withstand? 238 00:18:56,000 --> 00:19:01,000 And we won't find the answer to that until the build team finishes the shark ramp. 239 00:19:01,000 --> 00:19:04,000 Next stop, an art supply shop. 240 00:19:04,000 --> 00:19:09,000 It sounds like Jamie has picked a certain rubber that he thinks would most match the shark skin. 241 00:19:09,000 --> 00:19:11,000 So we're probably going to go with that. 242 00:19:11,000 --> 00:19:17,000 We actually are looking for a fast curing polyurethane that can be brushed on. 243 00:19:17,000 --> 00:19:22,000 It can be applied really thick so that we can work really quickly and get the shark head knocked out 244 00:19:22,000 --> 00:19:25,000 because we've been working on it for days and we thought it would take all day. 245 00:19:25,000 --> 00:19:29,000 What we've got here is a Goldilocks situation. 246 00:19:29,000 --> 00:19:33,000 If the rubber's too hard, the ram will easily penetrate the targets. 247 00:19:33,000 --> 00:19:36,000 Too soft and it'll bounce right off. 248 00:19:36,000 --> 00:19:39,000 So it has to be just right. 249 00:19:42,000 --> 00:19:45,000 Mmm, yummy! 250 00:19:47,000 --> 00:19:53,000 It's a sticky situation and some test tugging has Tori worry. 251 00:19:53,000 --> 00:19:57,000 This is like my worst nightmare coming true. 252 00:19:57,000 --> 00:20:01,000 Not being able to pull a piece out of a mold. 253 00:20:04,000 --> 00:20:07,000 I hear it's separating. That's a good thing. 254 00:20:07,000 --> 00:20:09,000 Come on, baby. 255 00:20:12,000 --> 00:20:14,000 Oh, my God. 256 00:20:16,000 --> 00:20:18,000 It's really good. 257 00:20:25,000 --> 00:20:27,000 Yeah. 258 00:20:42,000 --> 00:20:47,000 The result, one rubber and fiberglass shark head. 259 00:20:47,000 --> 00:20:51,000 That was a lot easier than I thought it was going to be. 260 00:20:51,000 --> 00:20:57,000 Now just paint and attach to a big pipe. 261 00:20:57,000 --> 00:21:00,000 It's a rammer. 262 00:21:00,000 --> 00:21:04,000 Next are myth busters. I can eat them. 263 00:21:04,000 --> 00:21:08,000 It's out of the workshop and into shark-infested waters. 264 00:21:12,000 --> 00:21:18,000 The Myth Busters want to find out, will punching a shark stop it attacking you? 265 00:21:18,000 --> 00:21:23,000 Jamie's trying to turn Buster into an air-powered shark-punching machine. 266 00:21:23,000 --> 00:21:29,000 In Jaws, Brody buys himself some time by hitting the shark with a scuba tank. 267 00:21:29,000 --> 00:21:34,000 In the real world, it's a commonly held belief that when a shark attacks, 268 00:21:34,000 --> 00:21:36,000 it's going to attack you. 269 00:21:36,000 --> 00:21:41,000 In 1963, Rodney Fox was spear-fishing off the South Australian coast 270 00:21:41,000 --> 00:21:45,000 when he suddenly found himself in the jaws of a great white. 271 00:21:45,000 --> 00:21:49,000 All I remember is this big thing pushing me through the water. 272 00:21:49,000 --> 00:21:52,000 When I was a kid, I was a little boy. 273 00:21:52,000 --> 00:21:54,000 I was a little boy. 274 00:21:54,000 --> 00:21:56,000 I was a little boy. 275 00:21:56,000 --> 00:21:58,000 I was a little boy. 276 00:21:58,000 --> 00:22:00,000 I was a little boy. 277 00:22:00,000 --> 00:22:02,000 I was a little boy. 278 00:22:02,000 --> 00:22:04,000 I was a little boy. 279 00:22:05,000 --> 00:22:09,000 When I was attacked, I knew I was being attacked 280 00:22:09,000 --> 00:22:13,000 and I just thought I should fight it off and do my best to get out of it. 281 00:22:13,000 --> 00:22:19,000 And because I actually fought and grabbed a hold of the shark around the belly 282 00:22:19,000 --> 00:22:22,000 because it wouldn't bite me and then I ticked at it and I pushed it off, 283 00:22:22,000 --> 00:22:24,000 I believe that helped a lot. 284 00:22:24,000 --> 00:22:29,000 Whatever the reason, Rodney Fox was released and lived to tell the tale. 285 00:22:29,000 --> 00:22:33,000 His wounds needed more than 500 stitches. 286 00:22:35,000 --> 00:22:37,000 Well, there you go. 287 00:22:37,000 --> 00:22:40,000 Looks like Buster's ready to come out swinging. 288 00:22:43,000 --> 00:22:46,000 Jamie's overcome the airflow restriction, 289 00:22:46,000 --> 00:22:51,000 although operating the rig now takes a degree of coordination and timing. 290 00:22:51,000 --> 00:22:54,000 Just kind of balance it. It won't hit you if you're down here. 291 00:22:54,000 --> 00:22:58,000 I will steer it, Adam, since you're going to be operating that thing, 292 00:22:58,000 --> 00:23:00,000 you might as well operate it. 293 00:23:00,000 --> 00:23:01,000 Is it powered up? 294 00:23:01,000 --> 00:23:06,000 It's powered up and I will have to hold on to this to aim it. 295 00:23:06,000 --> 00:23:08,000 All right, are you ready? Here we go. 296 00:23:08,000 --> 00:23:10,000 Three, two, one. 297 00:23:13,000 --> 00:23:14,000 That was pretty close. 298 00:23:14,000 --> 00:23:19,000 There's only two inches difference between Jamie's test punch and Buster's effort. 299 00:23:19,000 --> 00:23:20,000 That's close enough. 300 00:23:20,000 --> 00:23:23,000 I mean, the other thing that you were doing when you hit it 301 00:23:23,000 --> 00:23:26,000 is you were putting your whole shoulder behind it. 302 00:23:26,000 --> 00:23:28,000 You weren't doing this like that. 303 00:23:28,000 --> 00:23:33,000 And the fact that it came within two inches of your mark, I think that's just perfect. 304 00:23:33,000 --> 00:23:35,000 I think this thing could hurt you. 305 00:23:36,000 --> 00:23:39,000 I think we're about to find out whether it'll hurt you. 306 00:23:40,000 --> 00:23:42,000 All right, I'll go put on the suit. 307 00:23:43,000 --> 00:23:45,000 What did I say about dressing up? 308 00:23:53,000 --> 00:23:55,000 Yeah, I can shake a booty in this. 309 00:23:58,000 --> 00:23:59,000 Oh. 310 00:24:04,000 --> 00:24:06,000 Looks like Buster's got his measure. 311 00:24:06,000 --> 00:24:07,000 Come on, let's go. 312 00:24:09,000 --> 00:24:12,000 So Buster's finally punching. He's doing well. 313 00:24:12,000 --> 00:24:14,000 He's got the right speed. 314 00:24:14,000 --> 00:24:19,000 Yeah, the last thing we have to do is hang him over the shark cage or in front of it. 315 00:24:19,000 --> 00:24:21,000 Because I'll be inside it, steering him. 316 00:24:21,000 --> 00:24:24,000 You'll be on the surface operating the valve so he punches. 317 00:24:24,000 --> 00:24:25,000 Making him punch, right? 318 00:24:25,000 --> 00:24:27,000 Yeah, and that's about it. 319 00:24:28,000 --> 00:24:34,000 As we know, the waters off Northern California are home to some giant great white sharks. 320 00:24:34,000 --> 00:24:39,000 But even the myth Buster's would think twice before shaping up to these monsters. 321 00:24:39,000 --> 00:24:44,000 Buster will have to pick on something his own size, like say a Caribbean reef shark. 322 00:24:44,000 --> 00:24:48,000 All right, looks like it's time to pack Buster's bags for the Bahamas. 323 00:24:48,000 --> 00:24:51,000 What do you think he'd wear? Shorts or a little thong? 324 00:24:51,000 --> 00:24:55,000 I don't know if Buster has enough actual flesh down there for a thong, but... 325 00:24:55,000 --> 00:24:58,000 He's got no butt at all. In fact, he doesn't even have any legs. 326 00:24:58,000 --> 00:25:00,000 Here we go again. 327 00:25:06,000 --> 00:25:11,000 We've put Buster through a lot on the show. We've burnt him, blown him up, dropped him off of buildings. 328 00:25:11,000 --> 00:25:17,000 But I think this is his shining moment. We've finally given him the gift of movement. 329 00:25:17,000 --> 00:25:20,000 We're going to put him in with some sharks. 330 00:25:25,000 --> 00:25:34,000 Two sharks right below us. 331 00:25:34,000 --> 00:25:43,000 We really want these sharks to come right in to Buster. We need to have them think of Buster as dinner. 332 00:25:43,000 --> 00:25:47,000 And so we've got to really motivate him and get them all worked up. 333 00:25:47,000 --> 00:25:55,000 That means probably baiting the area and in particular baiting Buster, having him exuding fish essence. 334 00:25:55,000 --> 00:25:58,000 Yaaaaaah! 335 00:25:58,000 --> 00:26:05,000 I'm looking at all these sharks in the water. If Buster was a real boy, he'd be absolutely terrified right now. 336 00:26:05,000 --> 00:26:08,000 Buster's being turned into a smorgasbord. 337 00:26:08,000 --> 00:26:14,000 Step one, put on his wetsuit. No mean feet when he has no feet. 338 00:26:14,000 --> 00:26:19,000 And pack the wetsuit with juicy morsels sure to have the sharks licking their chops. 339 00:26:19,000 --> 00:26:23,000 Metaphorically, of course, sharks don't have tongues. 340 00:26:23,000 --> 00:26:30,000 I still think that shark fighting Buster might end up punching this way while sharks are eating his ass. 341 00:26:30,000 --> 00:26:34,000 But I think if he actually gets contact, the shark's going to go right away. 342 00:26:34,000 --> 00:26:39,000 Buster's got more hose than a lingerie store. What if a shark gnaws through it? 343 00:26:39,000 --> 00:26:42,000 Will he be sent down to Davy Jones Locker? 344 00:26:42,000 --> 00:26:48,000 If Buster's umbilical does get cut and he goes to the bottom, I mean, hell or high water, we're going to get him back out. 345 00:26:48,000 --> 00:26:52,000 We leave no man behind on Myth Buster's man. 346 00:26:55,000 --> 00:27:02,000 Jamie will be holding on to Buster through the bars of the shark cage, so he'll be modeling the latest chain mail. 347 00:27:02,000 --> 00:27:06,000 But he won't be going alone. Stuart Cove's agreed to join him in the cage. 348 00:27:06,000 --> 00:27:08,000 Jamie, you look really hot in that chain mail. 349 00:27:08,000 --> 00:27:12,000 Stuart, is there any kind of possibility for stuff getting out of control with this thing? 350 00:27:12,000 --> 00:27:15,000 I mean, we're going to chum the heck out of the water here, right? 351 00:27:15,000 --> 00:27:18,000 Yeah, it's definitely going to get out of control, but we're in the cage. 352 00:27:18,000 --> 00:27:23,000 So the only problem we may have is if one of the sharks, the little ones, gets inside the cage. 353 00:27:23,000 --> 00:27:24,000 Okay. 354 00:27:30,000 --> 00:27:32,000 Buster goes overboard. 355 00:27:33,000 --> 00:27:41,000 We've got a robot in the water. He's stuffed with tuna, and it's just another day here with Buster's. 356 00:27:47,000 --> 00:27:48,000 Ask him how that went. 357 00:27:48,000 --> 00:27:51,000 How are those two deafening blows over? 358 00:27:53,000 --> 00:27:57,000 It just looked like they were in the show. They're very aggressive. Over. 359 00:27:57,000 --> 00:28:00,000 I guess we're ready for some sharks. Over. 360 00:28:00,000 --> 00:28:02,000 Is Andy blowing over? 361 00:28:08,000 --> 00:28:09,000 They're coming. 362 00:28:13,000 --> 00:28:14,000 Earing up. 363 00:28:14,000 --> 00:28:16,000 Earing up over. 364 00:28:19,000 --> 00:28:20,000 Go ahead. 365 00:28:20,000 --> 00:28:21,000 Punch! 366 00:28:23,000 --> 00:28:26,000 Initially, Buster's a little slow to react. 367 00:28:31,000 --> 00:28:32,000 Oh, okay. 368 00:28:36,000 --> 00:28:42,000 The sharks seem cautious, but soon the fishy waft from his wetsuit has them fired up. 369 00:28:43,000 --> 00:28:46,000 Buster has a real fight on his hands. 370 00:28:47,000 --> 00:28:48,000 Oh! 371 00:28:48,000 --> 00:28:49,000 Punch! 372 00:28:51,000 --> 00:28:52,000 Punch! 373 00:28:52,000 --> 00:29:05,000 Oh my God. This is more fun than it should be allowed. 374 00:29:06,000 --> 00:29:11,000 The reef sharks do shy away when punched or poked, but they don't stay away for long. 375 00:29:16,000 --> 00:29:19,000 A shark shoots up from below and grabs Buster's arm. 376 00:29:22,000 --> 00:29:23,000 Punch! 377 00:29:29,000 --> 00:29:34,000 Okay, that was pretty intense. We just had a punch delivered, 378 00:29:34,000 --> 00:29:40,000 hit onto a shark and a reefed Buster hit him like this while he was wrestling with the shark. Over. 379 00:29:40,000 --> 00:29:45,000 While boxing Buster is working well, he's still a little hit and miss. 380 00:29:45,000 --> 00:29:51,000 Remember, the myth says that punching a shark in the nose, eyes, or gills will stop it attacking. 381 00:29:51,000 --> 00:29:54,000 Not sure how often Buster's finding the mark. 382 00:29:57,000 --> 00:29:58,000 Punch! 383 00:29:59,000 --> 00:30:00,000 Buster! 384 00:30:00,000 --> 00:30:01,000 Woo! 385 00:30:01,000 --> 00:30:03,000 And I hear the spear on him. 386 00:30:03,000 --> 00:30:06,000 I'm killing me not being able to see down there. 387 00:30:06,000 --> 00:30:07,000 And totally it's killing me. 388 00:30:08,000 --> 00:30:09,000 Punch! 389 00:30:10,000 --> 00:30:13,000 The smell of the bait is making them bolder. 390 00:30:16,000 --> 00:30:20,000 They're giggling, I can't even hear them. 391 00:30:21,000 --> 00:30:23,000 Oh, Buster's playing like, whoa! 392 00:30:31,000 --> 00:30:36,000 I didn't get one of those, what the hell am I doing, Moments? Over. 393 00:30:38,000 --> 00:30:39,000 That was amazing! 394 00:30:40,000 --> 00:30:46,000 Sometimes the sharks would just come in and get a hold of him. 395 00:30:46,000 --> 00:30:51,000 They were like, completely swallowing his hands while I'm going, punch, punch, punch. 396 00:30:51,000 --> 00:30:57,000 I just let him go and he's out there swimming around by himself, punching and… 397 00:31:00,000 --> 00:31:05,000 The conquering hero returns, bearing the scars of battle. 398 00:31:05,000 --> 00:31:10,000 Look at this, look at all these bites around the wrist, it means he swallowed the hand. 399 00:31:10,000 --> 00:31:12,000 He's just ripped the shreds. 400 00:31:12,000 --> 00:31:15,000 And so is his fish-filled wetsuit. 401 00:31:15,000 --> 00:31:19,000 It's quite obvious that they're very skittish, they don't like to be challenged, 402 00:31:19,000 --> 00:31:26,000 and if you give them a good wrap, they're likely to go away, so I think it's actually impressively possible. 403 00:31:26,000 --> 00:31:31,000 But the mythbusters haven't traveled all the way to the Bahamas to leave it at that. 404 00:31:31,000 --> 00:31:35,000 Now they've seen the sharks in action, they're already planning their next bout. 405 00:31:35,000 --> 00:31:43,000 Clearly I think we might be slipping on mythbusters, I mean the robotic shark-punching buster worked perfectly the first time out. 406 00:31:43,000 --> 00:31:50,000 Yeah, you know, it showed if the sharks were really motivated to go for you, you know, like really attack you, 407 00:31:50,000 --> 00:31:53,000 that was their focus, because he was all chummed up and they wanted him. 408 00:31:53,000 --> 00:31:58,000 That you might as well go after him, you might as well punch him, what else are you going to do? 409 00:31:58,000 --> 00:32:00,000 Because it really actually did something. 410 00:32:00,000 --> 00:32:01,000 Yeah, it fended him off. 411 00:32:01,000 --> 00:32:04,000 Yeah, but I still think that we need to do a little more testing with this myth. 412 00:32:04,000 --> 00:32:10,000 I mean, clearly after what Stuart said, it sounds like if you punch the shark, they're going to come at you more aggressively. 413 00:32:10,000 --> 00:32:16,000 I think that we might have to take this a step further and get into the chainmail and have one of us, not me. 414 00:32:16,000 --> 00:32:17,000 Not me. 415 00:32:17,000 --> 00:32:18,000 Clearly Jamie. 416 00:32:18,000 --> 00:32:19,000 That would be me. 417 00:32:19,000 --> 00:32:22,000 Get down there in the chainmail and punch them personally. 418 00:32:22,000 --> 00:32:29,000 And see if they get more riled up by punching, and if punching is actually worse, then not punching. 419 00:32:29,000 --> 00:32:30,000 Are you willing to do it? 420 00:32:30,000 --> 00:32:34,000 You know what they say, when you're swimming with sharks, you're going to get bit. 421 00:32:34,000 --> 00:32:36,000 Coming up on Mythbusters. 422 00:32:36,000 --> 00:32:40,000 Can a bullet turn a scuba tank into a bomb? 423 00:32:43,000 --> 00:32:47,000 And how can this tank help solve the riddle of shark strength? 424 00:32:54,000 --> 00:32:56,000 How strong is a shark? 425 00:32:56,000 --> 00:33:02,000 According to Adam and Jamie's figures, a shark can exert no more than its own weight on a shock load, 426 00:33:02,000 --> 00:33:06,000 and about 30% of its weight on a continuous pull. 427 00:33:06,000 --> 00:33:12,000 If that's right, then is it possible for a real shark to wreak the same sort of havoc as the one in Jaws? 428 00:33:18,000 --> 00:33:24,000 The Mythbusters are in the perfect place to find out, a dry dock at an abandoned naval yard. 429 00:33:26,000 --> 00:33:31,000 This 38-foot cruiser will play the role of Quinn's doomed boat, the Orca. 430 00:33:31,000 --> 00:33:35,000 It's similar in size, weight, and construction. 431 00:33:35,000 --> 00:33:40,000 This feels exactly like Quinn's boat in the movie. 432 00:33:43,000 --> 00:33:45,000 What's out of the engine? 433 00:33:45,000 --> 00:33:53,000 I mean, the space in the cabin and all of that stuff, I know they're probably shooting on a set half the time, but it feels exactly right. 434 00:33:57,000 --> 00:34:00,000 We're calling it the Orca 5. 435 00:34:00,000 --> 00:34:06,000 I think the 1, 2, 3, and 4 they used in various movies, all the Jaws movies. 436 00:34:06,000 --> 00:34:10,000 They even had one with a balsa wood stern so the shark could get up on it easier. 437 00:34:10,000 --> 00:34:12,000 Always wanted to do this. 438 00:34:12,000 --> 00:34:14,000 I christened the Orca 5. 439 00:34:21,000 --> 00:34:22,000 Ew. 440 00:34:23,000 --> 00:34:25,000 How the hell do they do this? 441 00:34:25,000 --> 00:34:27,000 It's made of stern stuff, Carrie. 442 00:34:27,000 --> 00:34:30,000 Okay, I'm going to go for it for the seventh time. 443 00:34:30,000 --> 00:34:34,000 Cristen the Orca 5. 444 00:34:36,000 --> 00:34:37,000 This break! 445 00:34:41,000 --> 00:34:42,000 Okay, stop. 446 00:34:42,000 --> 00:34:46,000 The 3,000-pound Sharama is ready for action. 447 00:34:46,000 --> 00:34:47,000 Whitsing up. 448 00:34:47,000 --> 00:34:50,000 And they found the perfect way to tow it through the water. 449 00:34:56,000 --> 00:34:58,000 That is foxy. 450 00:34:59,000 --> 00:35:02,000 That is a foxy machine. 451 00:35:02,000 --> 00:35:12,000 This is an MTVL, Mobile Tactical Vehicle Light, on loan from United Defense, one of the US military's biggest contractors. 452 00:35:12,000 --> 00:35:20,000 28,000 pounds, 400 horsepower, 0-20 miles per hour in 7 seconds. 453 00:35:21,000 --> 00:35:25,000 Well, this is going to be our main drag vehicle for all of our shark experiments. 454 00:35:25,000 --> 00:35:35,000 This is heavy enough and fast enough to provide us with the speed and traction we need to pull boats, to pull sharks, to wreck shark cages and all the stuff we need to do. 455 00:35:35,000 --> 00:35:38,000 But Adam, will they let you drive it? 456 00:35:38,000 --> 00:35:40,000 I don't know if that's in the cards. 457 00:35:42,000 --> 00:35:46,000 Right, down to business. Time to roll out the barrels. 458 00:35:51,000 --> 00:35:57,000 Here's the plan. The barrels are tethered to a concrete block sitting on the bottom of the channel. 459 00:35:57,000 --> 00:36:04,000 A length of rope goes from the barrels, through a system of pulleys, to the force gauge, which is connected to the tank. 460 00:36:04,000 --> 00:36:11,000 The tank takes off, the barrels get jerked under, and the gauge registers the amount of force needed to submerge them. 461 00:36:13,000 --> 00:36:17,000 These are the actual barrels Spielberg used in the making of jaws. 462 00:36:17,000 --> 00:36:18,000 Okay, okay. 463 00:36:18,000 --> 00:36:24,000 If any harm comes to these babies, the owner will have Adam over a, you know what. 464 00:36:24,000 --> 00:36:29,000 The only thing we're told we can't do is burn them, blow them up or lose them. 465 00:36:29,000 --> 00:36:30,000 Has he watched the show? 466 00:36:30,000 --> 00:36:35,000 The barrel line is fed through the pulleys and tied to the force gauge on the rear of the tank. 467 00:36:35,000 --> 00:36:37,000 Alright, so I think we're ready. 468 00:36:39,000 --> 00:36:43,000 Adam monitors a feed from a camera mounted above the force gauge. 469 00:36:48,000 --> 00:36:50,000 Ready, set, sink. 470 00:36:57,000 --> 00:36:58,000 1500. 471 00:37:00,000 --> 00:37:01,000 1500 right there. 472 00:37:02,000 --> 00:37:03,000 Are they under, Carrie? 473 00:37:03,000 --> 00:37:05,000 They are just under. 474 00:37:05,000 --> 00:37:07,000 Just about 1200 pounds. 475 00:37:10,000 --> 00:37:12,000 We have 1200 pounds! 476 00:37:12,000 --> 00:37:13,000 Alright. 477 00:37:14,000 --> 00:37:16,000 I think we can back up. That's a good test. 478 00:37:16,000 --> 00:37:18,000 You ready to back on the slack? 479 00:37:18,000 --> 00:37:20,000 Hold on, I want to take a look. 480 00:37:20,000 --> 00:37:21,000 What? 481 00:37:22,000 --> 00:37:24,000 Ah, look at that, they're all the way under. 482 00:37:26,000 --> 00:37:27,000 Woo! 483 00:37:28,000 --> 00:37:29,000 Yay! 484 00:37:30,000 --> 00:37:31,000 One down! 485 00:37:34,000 --> 00:37:42,000 The barrel test, how much force would it take to sink three of the barrels from the movie Jaws below the surface of the water worked perfectly. 486 00:37:42,000 --> 00:37:45,000 My estimation of about 1300 pounds was very close. 487 00:37:45,000 --> 00:37:49,000 It turned out to be just over 1200 pounds to keep it under the surface. 488 00:37:49,000 --> 00:38:00,000 The test showed that your average real size shark between 17 and 19 feet between 3 and 4,000 pounds just would not have the strength to hold these barrels under the water. 489 00:38:00,000 --> 00:38:04,000 It might be able to pull them under briefly, but it would not be able to keep them there. 490 00:38:04,000 --> 00:38:07,000 That's shark strength round one to the Mythbusters. 491 00:38:07,000 --> 00:38:08,000 Oh, yeah! 492 00:38:13,000 --> 00:38:22,000 Alright guys, you know we have to have one explosion per episode and this one is a classic. 493 00:38:22,000 --> 00:38:26,000 The question is, is the end of the movie Jaws actually feasible? 494 00:38:26,000 --> 00:38:35,000 When Brody stuffs the scuba tank in the shark's mouth and fires a rifle right in its end, will it explode with enough force to blow the shark to smithereens? 495 00:38:35,000 --> 00:38:37,000 Smile, you son of a... 496 00:38:38,000 --> 00:38:47,000 In the book version of Jaws, the great white meets a different fate, dying after being harpooned by Quint. 497 00:38:47,000 --> 00:38:53,000 And author Peter Benchley wasn't happy about Spielberg's explosive climates. 498 00:38:53,000 --> 00:38:55,000 The director was adamant. 499 00:38:55,000 --> 00:39:01,000 When Brody squeezed that trigger, the villain of the piece was going to go up like an oil refinery. 500 00:39:01,000 --> 00:39:06,000 But Benchley thought that having the scuba tank explode when shot was unbelievable. 501 00:39:06,000 --> 00:39:08,000 He said, I don't care. 502 00:39:08,000 --> 00:39:19,000 He said, if I have got them for two hours, they will believe whatever I do for the next three minutes because I've got them in my hands and I want the audience on their feet screaming. 503 00:39:19,000 --> 00:39:22,000 At the end, yes, yes, yes. 504 00:39:24,000 --> 00:39:28,000 What audience has got was one of cinema's most memorable finales. 505 00:39:29,000 --> 00:39:33,000 Okay, clearly this is going to be extraordinarily dangerous. 506 00:39:33,000 --> 00:39:37,000 I mean, we've got to figure out a way to protect ourselves. Do you have any plans? 507 00:39:37,000 --> 00:39:39,000 Well, actually I do. 508 00:39:39,000 --> 00:39:44,000 My thought was to get a hold of one of those shipping containers, the big steel things. 509 00:39:44,000 --> 00:39:53,000 And if we put the scuba tank inside that and we take our gun and mount it also inside that but make it able to fire remotely. 510 00:39:53,000 --> 00:39:57,000 So we'll hook a motor or something up to it and run a wire way far away. 511 00:39:57,000 --> 00:39:59,000 We should be able to operate this safely. 512 00:39:59,000 --> 00:40:03,000 There's no question that a scuba tank carries a lot of energy. 513 00:40:03,000 --> 00:40:06,000 Inside each cylinder is enough air to fill a phone booth. 514 00:40:06,000 --> 00:40:08,000 About 80 cubic feet. 515 00:40:08,000 --> 00:40:09,000 The air is a mix. 516 00:40:09,000 --> 00:40:13,000 78% nitrogen and 21% oxygen. 517 00:40:13,000 --> 00:40:16,000 The air is stored under enormous pressure. 518 00:40:16,000 --> 00:40:21,000 3,000 psi or 204 atmospheres. 519 00:40:21,000 --> 00:40:27,000 It's estimated that a single tank carries 1.3 million pounds of explosive force. 520 00:40:27,000 --> 00:40:31,000 And that's what Adam and Jamie want to unleash. 521 00:40:31,000 --> 00:40:41,000 You know, I've got some prop geek buddies out there and I managed to obtain one of the actual tanks used in the shooting of Jaws. 522 00:40:41,000 --> 00:40:45,000 It's actually been signed by Richard Dreyfus. 523 00:40:45,000 --> 00:40:47,000 Jamie, you want to tell me what kind of tank this is? 524 00:40:48,000 --> 00:40:51,000 Well, this is the most common type of tank that we would use these days. 525 00:40:51,000 --> 00:40:53,000 This is an aluminum 80. 526 00:40:53,000 --> 00:40:59,000 This is actually pretty good because part of this myth is about showing what would happen if you blew up a tank this way. 527 00:40:59,000 --> 00:41:05,000 And I understand these things have about a million or actually it's 1.3 million pounds of explosive force. 528 00:41:05,000 --> 00:41:08,000 I'm not sure what that means but it sounds like a lot. 529 00:41:08,000 --> 00:41:12,000 So this is going to be fun. 530 00:41:12,000 --> 00:41:16,000 Our scuba tank will have to be clenched in the jaws of a great white shark. 531 00:41:16,000 --> 00:41:21,000 As well connected as he is, Adam can't get hold of the one used in the movie. 532 00:41:21,000 --> 00:41:23,000 So he's going to make his very own. 533 00:41:23,000 --> 00:41:30,000 We're working on making a basically a mock-up shark's head to put this tank into when we explode it. 534 00:41:30,000 --> 00:41:40,000 I'm just still framing through the movie jaws to take a look at some of the basic measurements of the shark's mouth to try and duplicate the dimensions correctly. 535 00:41:40,000 --> 00:41:52,000 I'm using a technique called additive foam build-up which involves using a upholstery foam like this which is just a one inch urethane foam and some contact cement 536 00:41:52,000 --> 00:41:58,000 which is exactly how they make muppets in fact to make the shark's head. 537 00:41:58,000 --> 00:42:01,000 I've got a sample over here that I prepared earlier. 538 00:42:01,000 --> 00:42:03,000 It's a pretty good technique for making sharks. 539 00:42:03,000 --> 00:42:07,000 The other question is what are they going to shoot the tank with? 540 00:42:07,000 --> 00:42:16,000 We've chosen the 30-odd 6 because as near as we can tell by looking very carefully at the movie it's the same type of weapon that was used to shoot the scuba tank. 541 00:42:16,000 --> 00:42:18,000 The guys at the gun shop agree. 542 00:42:18,000 --> 00:42:29,000 This war vintage M1 Garand uses a 30-odd 6 rifle cartridge and it's starting to dawn on Jamie that he's staring down the barrel of one dangerous challenge. 543 00:42:29,000 --> 00:42:37,000 It may be a one in a million chance but the fact is if that weapon goes off when it's in the right position I'm dead. 544 00:42:37,000 --> 00:42:44,000 Later the FBI's on standby as the mythbusters trigger the scuba tank firing squad. 545 00:42:44,000 --> 00:42:48,000 In three, two, one. 546 00:42:48,000 --> 00:42:52,000 And after the break they put shark strength to the test. 547 00:42:59,000 --> 00:43:04,000 I got it! 548 00:43:04,000 --> 00:43:08,000 Whoa, dude you really ate your weedies this morning. 549 00:43:08,000 --> 00:43:11,000 The mythbusters have already sunk one jawsmith. 550 00:43:11,000 --> 00:43:15,000 Now it's time for the second shark strength test. 551 00:43:15,000 --> 00:43:21,000 For this experiment the Orca 5 will be connected to the tank and yanked backwards. 552 00:43:21,000 --> 00:43:28,000 To replicate the scene successfully the boat will have to be pulled back so fast that waves break over the stern. 553 00:43:28,000 --> 00:43:29,000 I can't hold it! 554 00:43:29,000 --> 00:43:32,000 Okay we're about to fire up the engine, stand by. 555 00:43:32,000 --> 00:43:35,000 Okay go ahead, we're going ahead. 556 00:43:35,000 --> 00:43:40,000 The force gauge will be monitored by Carrie. 557 00:43:40,000 --> 00:43:45,000 And the Orca 5 sets sail. 558 00:43:45,000 --> 00:43:48,000 Full steam, eh, behind. 559 00:43:48,000 --> 00:43:51,000 Holy. 560 00:43:51,000 --> 00:43:54,000 One down. 561 00:43:54,000 --> 00:43:56,000 Two down. 562 00:43:56,000 --> 00:44:00,000 You're good, you're good. 563 00:44:00,000 --> 00:44:06,000 The tank hits 25 miles per hour. 564 00:44:06,000 --> 00:44:11,000 The estimated top speed of a great white shark. 565 00:44:11,000 --> 00:44:15,000 The force gauge will be monitored by Carrie. 566 00:44:15,000 --> 00:44:20,000 The force gauge trembles between 4 and 8 thousand pounds. 567 00:44:20,000 --> 00:44:25,000 And Orca 5's maiden voyage comes to a sudden end. 568 00:44:25,000 --> 00:44:35,000 Stop, stop, stop, stop. 569 00:44:35,000 --> 00:44:40,000 It was an action replay of the first shark. 570 00:44:41,000 --> 00:44:44,000 It was an action replay of the movie. 571 00:44:44,000 --> 00:44:47,000 A cleat was wrenched out. 572 00:44:47,000 --> 00:44:53,000 But that's where reality ends and fiction begins. 573 00:44:53,000 --> 00:45:04,000 That actually proves beyond a shadow of a doubt that the jaw shark could not have dragged the Orca backwards until water splashed over the stern. 574 00:45:05,000 --> 00:45:09,000 Because it would require it to exert more than double its own weight. 575 00:45:09,000 --> 00:45:11,000 And we didn't find a single shark that could do that. 576 00:45:11,000 --> 00:45:15,000 So that's Mythbusters 2, Jaw's Zip. 577 00:45:17,000 --> 00:45:25,000 Later, the Shoramers dead on target when the Mythbusters tackle the movie's remaining strength scenes. 578 00:45:26,000 --> 00:45:35,000 Back at base, work on the exploding scuba tank myth continues. 579 00:45:35,000 --> 00:45:40,000 So it's got some structure, but it's going to need some more. 580 00:45:40,000 --> 00:45:45,000 Adam's Muppet Man-Eater is nearing completion. 581 00:45:45,000 --> 00:45:49,000 It's just like the real thing, only cuddly. 582 00:45:56,000 --> 00:46:01,000 Ta-da! Doesn't that look good? 583 00:46:01,000 --> 00:46:02,000 It's awesome. 584 00:46:04,000 --> 00:46:06,000 There you go. 585 00:46:07,000 --> 00:46:14,000 Everything is set, so they de-camp to a disused Air Force Base miles from any innocent bystanders. 586 00:46:16,000 --> 00:46:20,000 Here's what they're going to do. Fred the Foam Sharks at 1M. 587 00:46:20,000 --> 00:46:21,000 That looks awesome. 588 00:46:21,000 --> 00:46:28,000 Jamie's remote firing gun rig is set up with the rifle position to fire at point blank range. 589 00:46:31,000 --> 00:46:34,000 Yeah, so they tell up here. There you go, that's it. 590 00:46:34,000 --> 00:46:39,000 First at test, they give Fred an empty scuba tank to chew on. 591 00:46:39,000 --> 00:46:42,000 Just to see if a bullet can pierce the thick aluminum bottom. 592 00:46:43,000 --> 00:46:44,000 Adam's tip? 593 00:46:44,000 --> 00:46:49,000 We were able to put one of those bullets through two layers of bulletproof Lexan. 594 00:46:50,000 --> 00:46:54,000 But it's two inches of aluminum. I mean, it's a lot stronger stuff. 595 00:46:54,000 --> 00:46:56,000 I don't think it's going to make it through the bottom. 596 00:46:56,000 --> 00:47:00,000 I think we're going to end up firing it, seeing that it doesn't work and going straight to the side. 597 00:47:00,000 --> 00:47:03,000 If he's right, that'll be myth-busted right there. 598 00:47:03,000 --> 00:47:06,000 Jamie loads around into the rifle. 599 00:47:07,000 --> 00:47:08,000 Guns loaded. 600 00:47:09,000 --> 00:47:10,000 Say when. 601 00:47:10,000 --> 00:47:11,000 Go for it. 602 00:47:11,000 --> 00:47:15,000 And three, two, one. 603 00:47:20,000 --> 00:47:21,000 I think it went off. 604 00:47:22,000 --> 00:47:23,000 That's fun. 605 00:47:26,000 --> 00:47:29,000 Lucky Adam didn't have any money riding on that result. 606 00:47:31,000 --> 00:47:32,000 Gonna pull it out. 607 00:47:32,000 --> 00:47:33,000 That went right through. 608 00:47:35,000 --> 00:47:36,000 Oh, look at that. 609 00:47:37,000 --> 00:47:38,000 Wow. 610 00:47:40,000 --> 00:47:44,000 So amazingly, that part of the myth is totally plausible. 611 00:47:45,000 --> 00:47:48,000 Yes, indeed. Now we get to see what will happen with it under pressure. 612 00:47:48,000 --> 00:47:54,000 On the other side of the break, put up your ducs, Jamie. It's time to fight off some fish. 613 00:47:54,000 --> 00:47:57,000 If I was in charge, I wouldn't put them down there. 614 00:48:06,000 --> 00:48:11,000 Jamie's agreed to take the plunge and put the shark punching myth to the ultimate test. 615 00:48:12,000 --> 00:48:16,000 We're out here in a new location. It's much farther out and these sharks are wild. 616 00:48:16,000 --> 00:48:21,000 They're much more aggressive. They're swirling around the boat right away when we landed 617 00:48:21,000 --> 00:48:27,000 or when we dropped anchor here. And it's got me a little concerned. 618 00:48:27,000 --> 00:48:32,000 Buster was punching some pretty well-fed, well-trained sharks out there at the two mile mark. 619 00:48:32,000 --> 00:48:36,000 We're way farther out here and these sharks are, from what we've seen this morning, 620 00:48:36,000 --> 00:48:41,000 a lot more aggressive, a lot quicker to go right for the food that they're interested in. 621 00:48:42,000 --> 00:48:48,000 And there could be some confusion and some danger involved. I don't know how I feel about it. 622 00:48:48,000 --> 00:48:51,000 I mean, I would completely support Jamie if he said no way. 623 00:48:52,000 --> 00:48:55,000 I'm a little worried. I don't really want Jamie to go down there and do that. 624 00:48:55,000 --> 00:49:00,000 I'm watching those sharks. They're way more aggressive and I'm actually really nervous. 625 00:49:00,000 --> 00:49:03,000 If I was in charge, I wouldn't put them down there. 626 00:49:03,000 --> 00:49:05,000 But, Carrie, wasn't it your idea? 627 00:49:05,000 --> 00:49:08,000 Have one of us, not me. 628 00:49:08,000 --> 00:49:09,000 Not me. 629 00:49:09,000 --> 00:49:13,000 Clearly Jamie. Come on. Would you want to hurt that guy? Look at him. 630 00:49:14,000 --> 00:49:20,000 The worst-case scenario with this would be, say, if one of the animals got a hold of my arm 631 00:49:20,000 --> 00:49:23,000 and started to thrash, I could potentially break it. 632 00:49:23,000 --> 00:49:26,000 If I see a shark coming up with a beret, I'm going to be mad at you. 633 00:49:27,000 --> 00:49:32,000 Here's the plan. Jamie and Stuart will dive to the seabed with a full bait box. 634 00:49:32,000 --> 00:49:38,000 Jamie, wearing chain mail, will then try and guard the bait against an army of hungry sharks 635 00:49:38,000 --> 00:49:40,000 using only his fists. 636 00:49:40,000 --> 00:49:42,000 Hurt me. Go ahead. 637 00:49:42,000 --> 00:49:45,000 Now Adam can't dive because of an ear problem. 638 00:49:45,000 --> 00:49:50,000 Lucky then that the crew have brought along a bubble sub, a personal submersible 639 00:49:50,000 --> 00:49:54,000 that can be potted by someone who doesn't have a dive ticket. 640 00:49:56,000 --> 00:49:59,000 Air from a regular tank is pumped into the bubble. 641 00:50:08,000 --> 00:50:22,000 Jamie and Stuart take the bait to the bottom. 642 00:50:27,000 --> 00:50:29,000 Microphone text. 643 00:50:29,000 --> 00:50:32,000 Respond back to me if you can hear me. Over. 644 00:50:34,000 --> 00:50:36,000 You can hear me calling. This is Jamie. Over. 645 00:50:37,000 --> 00:50:39,000 Roger that. Over. 646 00:50:48,000 --> 00:50:50,000 Are the sharks coming at you? 647 00:50:50,000 --> 00:50:52,000 All around us. 648 00:50:52,000 --> 00:50:54,000 Right. Let the battle commence. 649 00:50:54,000 --> 00:50:56,000 The sharks are all around them. 650 00:50:57,000 --> 00:51:08,000 Where busters strikes were random, Jamie's are precise, sticking to the areas specified in the myth. 651 00:51:08,000 --> 00:51:11,000 He's also using very little force. 652 00:51:16,000 --> 00:51:21,000 It's soon obvious that Jamie's punches aren't making the sharks more aggressive. 653 00:51:26,000 --> 00:51:30,000 Adam has a ringside seat just out of the danger zone. 654 00:51:33,000 --> 00:51:37,000 Jamie have you done enough punching to come up with a result? Over. 655 00:51:37,000 --> 00:51:41,000 Let me think about it a little bit. I'm a little busy right now. 656 00:51:41,000 --> 00:51:44,000 Just hitting the mess like hitting the road. 657 00:51:44,000 --> 00:51:53,000 And there's more aggressive on the ground. More than a little bit. Over. 658 00:51:56,000 --> 00:51:58,000 I'm going to go get the water. 659 00:52:07,000 --> 00:52:10,000 Could you call a plausible at this point? Over. 660 00:52:12,000 --> 00:52:18,000 I definitely don't see that punching them is making them angry. 661 00:52:19,000 --> 00:52:26,000 I mean, I'm defending this and they seem to be responding. 662 00:52:26,000 --> 00:52:30,000 They know I'm guarding the bait box and they're not coming in as tight as they were. 663 00:52:30,000 --> 00:52:48,000 They're just swimming around. It's obvious they don't like even being poked. 664 00:52:48,000 --> 00:52:51,000 You could really pretty much do this and get the same result. 665 00:53:01,000 --> 00:53:08,000 The front of the shark, the nose is like bone. I'm sure it's cartilage instead. 666 00:53:08,000 --> 00:53:11,000 It's just, you know, knock knock. They don't respond to it too much either. 667 00:53:11,000 --> 00:53:17,000 Punching in the soft sides along the gills or whatever, you can do it. 668 00:53:17,000 --> 00:53:19,000 And they seem to actually respond to it. 669 00:53:19,000 --> 00:53:24,000 I felt like I was actually defending the bait box by punching at them. 670 00:53:24,000 --> 00:53:28,000 I did not feel them like getting angry at me or... 671 00:53:28,000 --> 00:53:32,000 So, shark punching, busted, plausible or confirmed? 672 00:53:32,000 --> 00:53:40,000 I would have to say plausible. I don't think it's a 100% way to defend yourself depending on the circumstances. 673 00:53:40,000 --> 00:53:46,000 But I tell you what, if you get bit by a shark and they're going for it, I'd be punching at them. 674 00:53:46,000 --> 00:53:49,000 I think I'd be punching at anything that was biting me. 675 00:53:49,000 --> 00:53:51,000 Ha ha ha. 676 00:53:55,000 --> 00:53:58,000 Up next, a shark ram showdown. 677 00:53:58,000 --> 00:54:03,000 And later, they've got a loaded scuba tank and a loaded gun. 678 00:54:03,000 --> 00:54:06,000 Will the result look like this? 679 00:54:07,000 --> 00:54:11,000 The Shark Force 680 00:54:15,000 --> 00:54:20,000 There's no record of a great white ever attacking and smashing a shark cage. 681 00:54:20,000 --> 00:54:25,000 But when you look at the size of some of them, it's easy to imagine. 682 00:54:25,000 --> 00:54:30,000 Down at the dock, it's time to move on to the Shark Force tests. 683 00:54:30,000 --> 00:54:33,000 I'd say that's as pretty as you please. 684 00:54:33,000 --> 00:54:36,000 The Charamers going into action. 685 00:54:41,000 --> 00:54:44,000 The Charammer will be hooked up to the personnel carrier, 686 00:54:44,000 --> 00:54:49,000 which will then deliver its payload head on at a speed of 25 miles per hour. 687 00:54:49,000 --> 00:54:53,000 The result should look something like this. 688 00:54:57,000 --> 00:55:02,000 Even with a steel dorsal fin, the Charammer doesn't look as scary as Bruce, 689 00:55:02,000 --> 00:55:04,000 the fake shark in Jaws. 690 00:55:04,000 --> 00:55:09,000 But it is more like a real shark when it comes to weight and buoyancy. 691 00:55:12,000 --> 00:55:18,000 I measure the shark to be about 513 feet away from the target. 692 00:55:18,000 --> 00:55:20,000 Alright, here we go. 693 00:55:24,000 --> 00:55:27,000 We're standing by to start the track vehicle ever. 694 00:55:27,000 --> 00:55:31,000 The Ram is the same length and weight as a mature great white. 695 00:55:31,000 --> 00:55:35,000 It's about to become a Jau Pido. 696 00:55:37,000 --> 00:55:40,000 I mean we're waiting on your signal to cow. 697 00:55:40,000 --> 00:55:42,000 Okay, we're go. 698 00:55:42,000 --> 00:55:49,000 The MTVL will stop at a preset distance, so the rope goes slack before the collision. 699 00:55:49,000 --> 00:55:55,000 That means the Charammer is not being towed, but traveling under its own momentum 700 00:55:55,000 --> 00:55:58,000 when it strikes the cage at 25 miles per hour. 701 00:55:58,000 --> 00:56:01,000 An estimated top speed of a great white shark. 702 00:56:10,000 --> 00:56:12,000 Yeah! 703 00:56:16,000 --> 00:56:19,000 Man, was that close to going in the drink. 704 00:56:19,000 --> 00:56:21,000 Well, that was cool. 705 00:56:21,000 --> 00:56:25,000 It flipped around a little bit, but it did what it would do. 706 00:56:25,000 --> 00:56:27,000 I mean, we had an impact. 707 00:56:27,000 --> 00:56:29,000 I saw the cage on the Charammer. I didn't see it before. 708 00:56:29,000 --> 00:56:31,000 The shark took part of the cage out. 709 00:56:31,000 --> 00:56:33,000 Look at that. 710 00:56:33,000 --> 00:56:35,000 So, look what's on the shark. 711 00:56:35,000 --> 00:56:37,000 Is that a piece of the cage? 712 00:56:37,000 --> 00:56:39,000 It's like it went right through it. 713 00:56:39,000 --> 00:56:41,000 Bullseye! 714 00:56:41,000 --> 00:56:43,000 The Ram is undamaged. 715 00:56:43,000 --> 00:56:45,000 Adam's cage, on the other hand... 716 00:56:45,000 --> 00:56:49,000 I mean, obviously it's such a massive amount of force, but really we've not seen any evidence. 717 00:56:49,000 --> 00:56:52,000 It's all based on estimation, the 25 mile an hour mark. 718 00:56:52,000 --> 00:56:55,000 There's no data that shows the shark swimming that fast. 719 00:56:55,000 --> 00:57:00,000 Nor is there any information that shows that a shark actually made it into a cage. 720 00:57:00,000 --> 00:57:03,000 Like, you know, that they actually penetrated a cage. 721 00:57:03,000 --> 00:57:07,000 Nonetheless, that's Mythbusters 2, Jaws 1. 722 00:57:17,000 --> 00:57:19,000 Time for the final test. 723 00:57:20,000 --> 00:57:24,000 In Jaws, the ferocious fish springs a surprise, 724 00:57:24,000 --> 00:57:28,000 not to mention several leaks, when it rams the orca. 725 00:57:28,000 --> 00:57:33,000 Outside of Hollywood, there's no record of a shark ever attacking a boat this big. 726 00:57:33,000 --> 00:57:38,000 Nevertheless, this grand old lady's going to get a grand old pummeling. 727 00:57:38,000 --> 00:57:44,000 To maximize the damage, the Orca 5 is positioned so that the Charammer will hit the flattest part of the hull. 728 00:57:44,000 --> 00:57:46,000 Okay, go! 729 00:57:46,000 --> 00:57:50,000 The military hardware launches a final assault. 730 00:58:08,000 --> 00:58:12,000 3,000 pounds connects at 25 miles per hour. 731 00:58:12,000 --> 00:58:15,000 Oh, Cameron the water! 732 00:58:15,000 --> 00:58:18,000 That's the perfect hit. 733 00:58:18,000 --> 00:58:23,000 Now, I mean, I'm a little disappointed that we didn't, like, go all the way through it, but... 734 00:58:23,000 --> 00:58:27,000 My shark went belly up, but it definitely pierced the side. 735 00:58:27,000 --> 00:58:29,000 It's a Mythbusters first. 736 00:58:29,000 --> 00:58:34,000 The experiment is to see if it's a good idea to get a fish out of the water. 737 00:58:34,000 --> 00:58:38,000 I'm not sure if it's a good idea to get a fish out of the water. 738 00:58:39,000 --> 00:58:41,000 It's a Mythbusters first. 739 00:58:41,000 --> 00:58:45,000 The experiment's finished and the boat still floats. 740 00:58:58,000 --> 00:59:04,000 This, I think, is definitively plausible that 3,000 pounds of shark could make some damage to your boat, 741 00:59:04,000 --> 00:59:08,000 even though no Great White has ever been caught sinking a boat of this size. 742 00:59:08,000 --> 00:59:11,000 Yeah, you get a big fish going real fast. 743 00:59:11,000 --> 00:59:13,000 What do you expect? 744 00:59:24,000 --> 00:59:28,000 After all this shark-strength testing, what are our final results? 745 00:59:28,000 --> 00:59:32,000 Well, clearly an average-sized Great White could not pull a boat backwards. 746 00:59:32,000 --> 00:59:36,000 And, I mean, even though a Great White could probably pull those barrels down, 747 00:59:36,000 --> 00:59:38,000 it couldn't keep them down there as it was in the movie. 748 00:59:38,000 --> 00:59:39,000 Not continuously? 749 00:59:39,000 --> 00:59:40,000 Not continuously, no. 750 00:59:40,000 --> 00:59:41,000 So those two are busted? 751 00:59:41,000 --> 00:59:43,000 Those two are definitely busted. 752 00:59:43,000 --> 00:59:47,000 But on the other hand, we showed that a Great White could work its way through a shark cage, 753 00:59:47,000 --> 00:59:51,000 probably depending on how it was built, but it went right through ours. 754 00:59:51,000 --> 00:59:56,000 And it would also be conceivable that a shark could, given the right circumstances, 755 00:59:56,000 --> 01:00:00,000 plow through a wooden boat hull. 756 01:00:00,000 --> 01:00:05,000 Well, then I would call that Myth Busters 2, Jaws Shark Myths 2. 757 01:00:05,000 --> 01:00:07,000 That's two all, yeah? 758 01:00:07,000 --> 01:00:08,000 Yeah. 759 01:00:08,000 --> 01:00:13,000 After the break, the explosive climax to our shark-weak Jaws Tackler. 760 01:00:24,000 --> 01:00:28,000 Time to put the exploding Scuba Tank Myth under the gun. 761 01:00:28,000 --> 01:00:32,000 We know a bullet can penetrate a tank's thick aluminum base. 762 01:00:34,000 --> 01:00:37,000 But that tank was empty. 763 01:00:37,000 --> 01:00:40,000 Next, we got one charged tank. 764 01:00:40,000 --> 01:00:43,000 This one should be somewhat exciting. 765 01:00:43,000 --> 01:00:50,000 This tank contains 80 cubic feet of compressed air stored at 3,000 psi. 766 01:00:50,000 --> 01:00:57,000 Now, there's a slim chance the bullet might damage the tank, but not actually rupture it. 767 01:00:57,000 --> 01:01:01,000 If that happens, the FBI will have to blow it up. 768 01:01:01,000 --> 01:01:04,000 A strip of C4 is taped to the tank. 769 01:01:04,000 --> 01:01:08,000 C4 explosive is a nerd, and so won't be set off by the bullet. 770 01:01:08,000 --> 01:01:11,000 Right, we're locked and loaded. 771 01:01:11,000 --> 01:01:12,000 I'm ready. 772 01:01:12,000 --> 01:01:15,000 Any more bold predictions before we pull the trigger? 773 01:01:15,000 --> 01:01:17,000 I'm ready! 774 01:01:17,000 --> 01:01:19,000 I think we're going to poke a hole in it. 775 01:01:19,000 --> 01:01:23,000 I think there'll be a really loud noise or maybe even a little bit of a rupture, 776 01:01:23,000 --> 01:01:26,000 but I don't believe this is going to be like a bomb going off. 777 01:01:26,000 --> 01:01:30,000 What I'm hoping for is to come around the corner and find the container 778 01:01:30,000 --> 01:01:35,000 bowed out in every possible way from the force of the blast. 779 01:01:35,000 --> 01:01:39,000 Now, if everyone could just cower behind the nearest masonry. 780 01:01:39,000 --> 01:01:41,000 Starting the trigger now. 781 01:01:50,000 --> 01:01:53,000 The tank took off like the proverbial rocket. 782 01:01:54,000 --> 01:01:58,000 Propelled around the container by a jet of compressed air. 783 01:02:01,000 --> 01:02:05,000 It looks like it collected a little paint from the red primer. 784 01:02:05,000 --> 01:02:08,000 Hey, Sharky's still alive! 785 01:02:08,000 --> 01:02:11,000 We got a beautiful shot right dead center of the bottom of the tank. 786 01:02:11,000 --> 01:02:14,000 The tank did not actually split all the way open. 787 01:02:14,000 --> 01:02:17,000 In fact, it shot like a rocket and bounced around in here 788 01:02:17,000 --> 01:02:22,000 and tore up some of the back of our Sharky, but didn't explode. 789 01:02:23,000 --> 01:02:27,000 So is this myth, like the Shark and Jaws, dead in the water? 790 01:02:27,000 --> 01:02:28,000 Not quite. 791 01:02:28,000 --> 01:02:33,000 Given the vagaries of movie editing, one could posit that the bullet 792 01:02:33,000 --> 01:02:37,000 entered the side of the tank at the end of Jaws, and I'm sure if we didn't do it, 793 01:02:37,000 --> 01:02:40,000 our fans would take us to task for not trying that. 794 01:02:40,000 --> 01:02:44,000 So we're going to do that before we call this myth totally busted. 795 01:02:44,000 --> 01:02:49,000 Will a bullet blasting right through the sides of a tank cause a more explosive reaction? 796 01:02:49,000 --> 01:02:51,000 And then you aim right for there. 797 01:02:51,000 --> 01:02:54,000 And our old Fred is force fed a fresh tank. 798 01:02:54,000 --> 01:02:58,000 In three, two, one! 799 01:03:05,000 --> 01:03:07,000 I don't know, it sounds like it might have been the same thing. 800 01:03:07,000 --> 01:03:10,000 That's not an explosion, that's a hole. 801 01:03:10,000 --> 01:03:13,000 I don't know that we've ever completed one so fast before. 802 01:03:13,000 --> 01:03:15,000 I don't know what to do with the rest of the day. 803 01:03:15,000 --> 01:03:21,000 It's the same result as before. 804 01:03:21,000 --> 01:03:23,000 The tank ricocheted around. 805 01:03:23,000 --> 01:03:25,000 The bullet didn't make it all the way through. 806 01:03:25,000 --> 01:03:31,000 There's the first hole, and there's the dent for the other hole. 807 01:03:31,000 --> 01:03:33,000 The hole is just too small. 808 01:03:33,000 --> 01:03:39,000 The metal in this case is strong enough to hold itself together to withstand an impact, 809 01:03:39,000 --> 01:03:42,000 even with all that pressure behind it, without rupturing the tank. 810 01:03:42,000 --> 01:03:45,000 This is myth buster, so next we have to make an explosion. 811 01:03:45,000 --> 01:03:47,000 We're just going to blow up the tank. 812 01:03:47,000 --> 01:03:50,000 It's the FBI's moment of glory. 813 01:03:50,000 --> 01:03:52,000 Another full tank is placed in position. 814 01:03:52,000 --> 01:03:56,000 This time the C4 will be remote detonated. 815 01:03:59,000 --> 01:04:01,000 Fire in the hole! 816 01:04:03,000 --> 01:04:05,000 I didn't know they really said that. 817 01:04:13,000 --> 01:04:15,000 Now that's more like it. 818 01:04:15,000 --> 01:04:20,000 The shockwave knocked over light stands, and there's a nice dent in the container. 819 01:04:20,000 --> 01:04:22,000 Whoa! 820 01:04:26,000 --> 01:04:28,000 That's amazing. 821 01:04:28,000 --> 01:04:30,000 And as for Fred... 822 01:04:30,000 --> 01:04:32,000 Anybody up for sushi? 823 01:04:32,000 --> 01:04:36,000 So do you guys think that any circumstances a bullet would do this? 824 01:04:36,000 --> 01:04:38,000 No. 825 01:04:38,000 --> 01:04:43,000 It ain't happening with a gun, and worsty would have gotten that shock, 826 01:04:43,000 --> 01:04:46,000 would have slammed backwards pretty quick for a few seconds. 827 01:04:46,000 --> 01:04:49,000 This is actually a lot like our explosive decompression story, 828 01:04:49,000 --> 01:04:54,000 in that a small hole does not a catastrophic failure of the structure make. 829 01:04:54,000 --> 01:04:58,000 Just like on an airplane that can manage the pressure, even with a bullet hole in it, 830 01:04:58,000 --> 01:05:02,000 these tanks don't turn into bombs when you fire bullets into them. 831 01:05:02,000 --> 01:05:04,000 They turn into rockets. 832 01:05:04,000 --> 01:05:08,000 The final sequence of jars, I'm sorry to say, is totally busted.