1 00:00:00,000 --> 00:00:02,000 entertain your brain. 2 00:00:02,000 --> 00:00:04,500 Hey, don't try what you are about to see at home. 3 00:00:04,500 --> 00:00:06,500 We are what you call experts. 4 00:00:06,500 --> 00:00:08,500 That's right. We do this for a living. 5 00:00:08,500 --> 00:00:12,500 On this special episode of Mythbusters, 6 00:00:12,500 --> 00:00:14,500 the feathers are flying 7 00:00:14,500 --> 00:00:17,500 as we put animal myths under the microscope. 8 00:00:19,500 --> 00:00:20,500 Don't turn away. 9 00:00:20,500 --> 00:00:23,000 It's chickens of mass destruction. 10 00:00:23,000 --> 00:00:26,000 The Mythbusters are firing their chicken gun 11 00:00:26,000 --> 00:00:28,000 to see which does the most damage, 12 00:00:28,000 --> 00:00:30,000 thawed or frozen. 13 00:00:30,000 --> 00:00:32,000 I would say that what you got here 14 00:00:32,000 --> 00:00:34,000 is a potential supersonic chicken. 15 00:00:34,000 --> 00:00:36,000 Are goldfish and a bowl bored 16 00:00:36,000 --> 00:00:38,000 or simply stupid? 17 00:00:38,000 --> 00:00:41,000 Does their memory last more than three seconds? 18 00:00:41,000 --> 00:00:43,000 I've got all the smart ones. 19 00:00:43,000 --> 00:00:44,000 You've got all the stupid ones. 20 00:00:44,000 --> 00:00:45,000 Crack, damn you. 21 00:00:45,000 --> 00:00:48,000 And science or quackery? 22 00:00:48,000 --> 00:00:49,000 I want you to do this, got it? 23 00:00:49,000 --> 00:00:51,000 The burning question. 24 00:00:51,000 --> 00:00:54,000 Does a duck's quack echo? 25 00:00:55,000 --> 00:00:57,000 Who are the Mythbusters? 26 00:00:57,000 --> 00:01:00,000 Is my missing an eyebrow? 27 00:01:00,000 --> 00:01:01,000 Adam Savage. 28 00:01:01,000 --> 00:01:04,000 I always enjoyed seeing Adam in pain. 29 00:01:04,000 --> 00:01:05,000 Oh! 30 00:01:05,000 --> 00:01:07,000 And Jamie Heineman. 31 00:01:07,000 --> 00:01:09,000 Jamie wants a big girl. 32 00:01:09,000 --> 00:01:13,000 Between them, more than 30 years special effects experience. 33 00:01:13,000 --> 00:01:14,000 Still kind of sexy. 34 00:01:14,000 --> 00:01:17,000 They don't just tell the Myths. 35 00:01:17,000 --> 00:01:20,000 They put them to the test. 36 00:01:27,000 --> 00:01:32,000 Well Jamie, I got an angry chicken, 37 00:01:32,000 --> 00:01:34,000 a really big gun and an airplane. 38 00:01:34,000 --> 00:01:36,000 What are we working on? 39 00:01:36,000 --> 00:01:39,000 Well we're here testing the myth of the chicken gun. 40 00:01:39,000 --> 00:01:42,000 Scientists conduct impact tests 41 00:01:42,000 --> 00:01:46,000 by firing bird carcasses from big guns. 42 00:01:46,000 --> 00:01:49,000 With more than 3,000 bird strikes each year, 43 00:01:49,000 --> 00:01:51,000 aviation authorities spend millions 44 00:01:51,000 --> 00:01:54,000 trying to protect the cockpit crews. 45 00:01:55,000 --> 00:01:58,000 We know that the military uses chicken cannons 46 00:01:58,000 --> 00:02:00,000 to test windshields, you know, 47 00:02:00,000 --> 00:02:02,000 how they would do with a bird hit. 48 00:02:02,000 --> 00:02:03,000 What's the myth? 49 00:02:03,000 --> 00:02:05,000 Well the myth says that the British 50 00:02:05,000 --> 00:02:07,000 borrowed this technology from NASA 51 00:02:07,000 --> 00:02:09,000 to test high speed trains. 52 00:02:09,000 --> 00:02:11,000 But they ran into a problem, 53 00:02:11,000 --> 00:02:13,000 and the problem was that the chickens were going 54 00:02:13,000 --> 00:02:15,000 right through the windshields of the trains 55 00:02:15,000 --> 00:02:17,000 and even embedding themselves in the seats 56 00:02:17,000 --> 00:02:19,000 further down inside the train. 57 00:02:19,000 --> 00:02:20,000 That would be bad. 58 00:02:20,000 --> 00:02:21,000 Yeah. 59 00:02:21,000 --> 00:02:23,000 Well the British were horrified at this, of course, 60 00:02:23,000 --> 00:02:26,000 and they sent a tape back to NASA asking for help. 61 00:02:26,000 --> 00:02:29,000 NASA replied saying, gentlemen, 62 00:02:29,000 --> 00:02:31,000 thaw your chickens. 63 00:02:32,000 --> 00:02:34,000 So this is what we're testing here today. 64 00:02:34,000 --> 00:02:36,000 Not that there is a chicken gun in existence, 65 00:02:36,000 --> 00:02:38,000 but whether or not there's a difference 66 00:02:38,000 --> 00:02:40,000 between a frozen and a thawed chicken 67 00:02:40,000 --> 00:02:42,000 at a couple hundred miles an hour 68 00:02:42,000 --> 00:02:43,000 to an airplane windshield. 69 00:02:43,000 --> 00:02:44,000 That's correct. 70 00:02:44,000 --> 00:02:48,000 To fire thawed or frozen chickens at high speed, 71 00:02:48,000 --> 00:02:50,000 the misbusters will need a sealed tank 72 00:02:50,000 --> 00:02:53,000 and compressor to supply air for the massive gun. 73 00:02:53,000 --> 00:02:56,000 An industrial-strength butterfly valve 74 00:02:56,000 --> 00:02:58,000 will provide an explosive release 75 00:02:58,000 --> 00:03:01,000 for firing the carcass down the long barrel. 76 00:03:01,000 --> 00:03:03,000 The target, a used fuselage, 77 00:03:03,000 --> 00:03:06,000 and several spare windshields. 78 00:03:06,000 --> 00:03:09,000 There are loads of stories where one country pokes fun at another, 79 00:03:09,000 --> 00:03:11,000 particularly where America is involved. 80 00:03:13,000 --> 00:03:16,000 Misbusters folklorist Heather Joseph Witham. 81 00:03:16,000 --> 00:03:18,000 There are versions of this narrative 82 00:03:18,000 --> 00:03:21,000 where it's the Royal Canadian Air Force, for example, 83 00:03:21,000 --> 00:03:22,000 that invents the chicken gun, 84 00:03:22,000 --> 00:03:26,000 and it's borrowed by American airplane manufacturers 85 00:03:26,000 --> 00:03:28,000 who don't know how to use the gun right. 86 00:03:31,000 --> 00:03:34,000 First stop for anyone buying light aircraft spare parts 87 00:03:34,000 --> 00:03:38,000 in California is Ken Fates' yard in Sacramento. 88 00:03:38,000 --> 00:03:41,000 Wind shields, I'm thinking about, might be over here, some of them. 89 00:03:41,000 --> 00:03:43,000 Acres of used light aircraft components 90 00:03:43,000 --> 00:03:46,000 make it a prime location for Jamie and Adam 91 00:03:46,000 --> 00:03:49,000 to find a fuselage and extra windshields. 92 00:03:49,000 --> 00:03:51,000 I love places like this. I can spend hours here 93 00:03:51,000 --> 00:03:55,000 looking through the gauges and the headsets and seats 94 00:03:55,000 --> 00:03:57,000 and, you know, hats. 95 00:03:57,000 --> 00:03:59,000 Look, a chicken. 96 00:03:59,000 --> 00:04:01,000 Looks like a bird already went through it. 97 00:04:01,000 --> 00:04:04,000 It did. What about something like this, Jamie? 98 00:04:04,000 --> 00:04:07,000 You know, we get double the bang for our buck. 99 00:04:07,000 --> 00:04:09,000 I certainly like the looks of these better. 100 00:04:09,000 --> 00:04:11,000 Aircraft chosen. 101 00:04:11,000 --> 00:04:14,000 Now, how to get it home. 102 00:04:17,000 --> 00:04:20,000 Jamie and Adam have been all over Kenny's yard, 103 00:04:20,000 --> 00:04:23,000 but there's one question they forgot to ask, 104 00:04:23,000 --> 00:04:27,000 an oversight that will come back to haunt them. 105 00:04:29,000 --> 00:04:31,000 Not bad, sir. Very good. 106 00:04:31,000 --> 00:04:33,000 Never done that before. 107 00:04:35,000 --> 00:04:38,000 Keep going. Good. 108 00:04:42,000 --> 00:04:45,000 Back at the workshop, the plane is stored 109 00:04:45,000 --> 00:04:49,000 until the chicken gun is built and ready to fire. 110 00:04:49,000 --> 00:04:51,000 Well, we've got our target, so the next step 111 00:04:51,000 --> 00:04:54,000 and the hardest step is going to be to set up the chicken gun. 112 00:04:54,000 --> 00:04:57,000 That means that we have to build a large tank 113 00:04:57,000 --> 00:04:59,000 to hold a whole lot of high pressure air 114 00:04:59,000 --> 00:05:02,000 and rig some kind of a valve to let go all that air all at once 115 00:05:02,000 --> 00:05:06,000 to fire a chicken. It's kind of tricky. It's a lot of work. 116 00:05:06,000 --> 00:05:10,000 And Jamie should know he's solved the compressed air problem 117 00:05:10,000 --> 00:05:12,000 once before. 118 00:05:12,000 --> 00:05:14,000 Good job, baby. 119 00:05:15,000 --> 00:05:18,000 He built this seven-up vending machine with attitudes 120 00:05:18,000 --> 00:05:22,000 for a TV commercial with impressive results. 121 00:05:27,000 --> 00:05:30,000 One of the things that I noticed was that the firing system 122 00:05:30,000 --> 00:05:32,000 that we set up required a large valve 123 00:05:32,000 --> 00:05:34,000 that delivered a whole bunch of air all at once. 124 00:05:34,000 --> 00:05:36,000 And we thought, wow, this is great. 125 00:05:36,000 --> 00:05:38,000 We should use this on the chicken gun 126 00:05:38,000 --> 00:05:41,000 because it requires exactly the same thing. 127 00:05:42,000 --> 00:05:44,000 It's a simple, elegant design. 128 00:05:44,000 --> 00:05:46,000 It's exactly what I like to see come out of the shop. 129 00:05:46,000 --> 00:05:49,000 It's fun, yet deadly. 130 00:05:49,000 --> 00:05:53,000 What else could you possibly want to come out of an effects shop? 131 00:05:55,000 --> 00:06:00,000 So the search for the perfect high pressure tank begins. 132 00:06:01,000 --> 00:06:03,000 Wow. 133 00:06:03,000 --> 00:06:07,000 The machinery and equipment company in Brisbane, California 134 00:06:07,000 --> 00:06:11,000 is a vast supermarket for used tanks. 135 00:06:11,000 --> 00:06:13,000 You can flip this in any direction. 136 00:06:13,000 --> 00:06:15,000 That could be upside down. 137 00:06:15,000 --> 00:06:17,000 You can hang it from something or leave it like that. 138 00:06:17,000 --> 00:06:19,000 What do you want for this thing? 139 00:06:19,000 --> 00:06:21,000 This is $750. 140 00:06:21,000 --> 00:06:23,000 Okay. 141 00:06:23,000 --> 00:06:26,000 Jamie, it still occurs to me that it's way overkill 142 00:06:26,000 --> 00:06:28,000 for what we want to do. 143 00:06:28,000 --> 00:06:30,000 But Adam's not convinced. 144 00:06:30,000 --> 00:06:33,000 He's called around town and found another tank. 145 00:06:33,000 --> 00:06:35,000 What I've got, I found a guy who's got one. 146 00:06:35,000 --> 00:06:37,000 It's about half that size. 147 00:06:37,000 --> 00:06:40,000 I think it's just perfect for us up in Petaluma. 148 00:06:40,000 --> 00:06:43,000 I need some cash and I need the keys to the car, Dad. 149 00:06:43,000 --> 00:06:45,000 Okay. 150 00:06:46,000 --> 00:06:47,000 High five. 151 00:06:47,000 --> 00:06:48,000 Alright. 152 00:06:48,000 --> 00:06:50,000 Drive carefully. 153 00:06:50,000 --> 00:06:52,000 Vegas, baby! 154 00:06:57,000 --> 00:07:01,000 Adam's ideal tank is waiting out back at Masselian Sun. 155 00:07:01,000 --> 00:07:03,000 What's it rated for? 156 00:07:03,000 --> 00:07:05,000 It's 200 PS. 157 00:07:05,000 --> 00:07:07,000 That is good. 158 00:07:08,000 --> 00:07:10,000 I love it. Let's do it. 159 00:07:11,000 --> 00:07:12,000 That's it. 160 00:07:12,000 --> 00:07:16,000 Meanwhile, Jamie has found an oversized butterfly valve 161 00:07:16,000 --> 00:07:18,000 that will release the pressurized air. 162 00:07:18,000 --> 00:07:22,000 He also ordered 20 feet of quarter inch steel pipe 163 00:07:22,000 --> 00:07:24,000 for a 10 inch diameter barrel. 164 00:07:25,000 --> 00:07:26,000 How you savage? 165 00:07:26,000 --> 00:07:27,000 You all righty? 166 00:07:27,000 --> 00:07:29,000 So, here she is. 167 00:07:29,000 --> 00:07:31,000 Even Jamie is impressed with Adam's purchase. 168 00:07:31,000 --> 00:07:34,000 It's an ideal tank for storing enough compressed air 169 00:07:34,000 --> 00:07:36,000 to propel chickens. 170 00:07:43,000 --> 00:07:45,000 Jamie is using a plasma cutter, 171 00:07:45,000 --> 00:07:49,000 a high energy precision tool to cut the pipe to length 172 00:07:49,000 --> 00:07:52,000 and to make a hole in the tank for the barrel. 173 00:07:55,000 --> 00:07:57,000 For the explosive release of air, 174 00:07:57,000 --> 00:08:01,000 the butterfly valve will be fitted between two lengths of pipe. 175 00:08:01,000 --> 00:08:05,000 Adam's job is to fit the short end to the tank. 176 00:08:10,000 --> 00:08:13,000 The big valve is the most critical aspect. 177 00:08:13,000 --> 00:08:17,000 It's the only mechanism standing between a great shot and a weak one. 178 00:08:17,000 --> 00:08:21,000 When we pressure this tank up, this can hold 250 PSI. 179 00:08:21,000 --> 00:08:25,000 We'll get it to about 200 and then yank on this 180 00:08:25,000 --> 00:08:27,000 and chickens will be flying. 181 00:08:28,000 --> 00:08:31,000 The air compressor is connected to the tank. 182 00:08:31,000 --> 00:08:34,000 Time for a chicken free test blast 183 00:08:34,000 --> 00:08:37,000 at 200 pounds per square inch of pressure. 184 00:08:37,000 --> 00:08:38,000 Staying clear. 185 00:08:38,000 --> 00:08:40,000 There goes the neighborhood. 186 00:08:40,000 --> 00:08:41,000 Give us a countdown then. 187 00:08:41,000 --> 00:08:43,000 Two, three, one. 188 00:08:49,000 --> 00:08:51,000 It looks impressive. 189 00:08:51,000 --> 00:08:54,000 Yet the white smoke is simply water vapor forming droplets 190 00:08:54,000 --> 00:08:58,000 when the previously hot compressed air meets the cool. 191 00:08:58,000 --> 00:09:01,000 It feels like a Mack truck just drove by me. 192 00:09:01,000 --> 00:09:04,000 I just wonder what a chicken breaking the speed of sound 193 00:09:04,000 --> 00:09:05,000 sounds like. 194 00:09:17,000 --> 00:09:20,000 If you're going to let your chickens fly free range, 195 00:09:20,000 --> 00:09:24,000 there's no better place to stock up than Tarantino's. 196 00:09:24,000 --> 00:09:27,000 Tony's family has been in poultry for years 197 00:09:27,000 --> 00:09:30,000 and he's heard all the chicken stories. 198 00:09:30,000 --> 00:09:32,000 Tony, do you think there'd be any difference 199 00:09:32,000 --> 00:09:35,000 between whether they used frozen or thawed chickens? 200 00:09:35,000 --> 00:09:38,000 I would imagine frozen would be harder. 201 00:09:38,000 --> 00:09:39,000 It could do more damage. 202 00:09:39,000 --> 00:09:40,000 Do a little bit more damage. 203 00:09:40,000 --> 00:09:43,000 I think the fresh just might kind of splat. 204 00:09:43,000 --> 00:09:45,000 So if you were in a plane, 205 00:09:45,000 --> 00:09:47,000 you'd rather hit a thawed chicken than a frozen one. 206 00:09:47,000 --> 00:09:49,000 Correct, yes. 207 00:09:49,000 --> 00:09:52,000 I don't imagine there's many frozen chickens at 2,000 feet. 208 00:09:52,000 --> 00:09:54,000 No, no maybe it's cold up there. 209 00:09:54,000 --> 00:09:57,000 And freezing down here, 210 00:09:57,000 --> 00:09:59,000 they're chickens of choice, 211 00:09:59,000 --> 00:10:02,000 eight rock hard four pounders. 212 00:10:02,000 --> 00:10:05,000 The key to launching chickens explosively 213 00:10:05,000 --> 00:10:08,000 is to ensure they fit the barrel snugly. 214 00:10:08,000 --> 00:10:12,000 Adam places them in a mold of expanding rigid foam. 215 00:10:12,000 --> 00:10:15,000 The result is a sleeve called a saboteur. 216 00:10:15,000 --> 00:10:18,000 It enables projectiles to be fired 217 00:10:18,000 --> 00:10:20,000 from weapons of a larger caliber. 218 00:10:20,000 --> 00:10:22,000 So once the foam sets up and gets rigid, 219 00:10:22,000 --> 00:10:25,000 what we end up with is this perfect sort of molded cartridge 220 00:10:25,000 --> 00:10:27,000 for the chicken that equals the size of the barrel 221 00:10:27,000 --> 00:10:29,000 and allows us to propel it out. 222 00:10:29,000 --> 00:10:31,000 I would say that what you got here 223 00:10:31,000 --> 00:10:33,000 is a potential supersonic chicken. 224 00:10:33,000 --> 00:10:38,000 Just a few bolts to tighten 225 00:10:38,000 --> 00:10:41,000 and this very potent chicken gun 226 00:10:41,000 --> 00:10:44,000 is ready for its first outing. 227 00:10:46,000 --> 00:10:49,000 Bringing up the rear is Bruce Bradford, 228 00:10:49,000 --> 00:10:52,000 a man who knows all about gigantic guns. 229 00:10:52,000 --> 00:10:56,000 He's the designer of one called Second Amendment. 230 00:10:56,000 --> 00:10:59,000 At the annual Pumpkin Chunkin in Delaware, 231 00:10:59,000 --> 00:11:03,000 these huge air guns blast pumpkins nearly a mile. 232 00:11:03,000 --> 00:11:08,000 With Bruce, the 2002 and three world champion, 233 00:11:08,000 --> 00:11:14,000 who better to consult on the business of big barrels? 234 00:11:14,000 --> 00:11:16,000 I think it's a great looking gun. 235 00:11:16,000 --> 00:11:17,000 It's got all the basics. 236 00:11:17,000 --> 00:11:18,000 It's got a tank. 237 00:11:18,000 --> 00:11:20,000 It's got a valve and it's got a barrel. 238 00:11:20,000 --> 00:11:23,000 Excellent job of welding by Adam, that's for sure. 239 00:11:23,000 --> 00:11:27,000 And it's going to shoot a chicken at high velocity. 240 00:11:27,000 --> 00:11:32,000 The countdown to chicken blast off has begun. 241 00:11:32,000 --> 00:11:36,000 Unsure of the chicken gun's firepower, 242 00:11:36,000 --> 00:11:41,000 for safety reasons, they sit the plane inside their blast chamber. 243 00:11:41,000 --> 00:11:42,000 I'll lean it right there. 244 00:11:42,000 --> 00:11:46,000 To check their aim, they need a test shot. 245 00:11:46,000 --> 00:11:49,000 Yeah, you're going to try it here first. 246 00:11:49,000 --> 00:11:54,000 So our first test is a frozen chicken. 247 00:11:54,000 --> 00:11:55,000 Let's see here. 248 00:11:55,000 --> 00:12:01,000 The tank is primed to 120 pounds per square inch of air pressure. 249 00:12:01,000 --> 00:12:03,000 Here we go. 250 00:12:03,000 --> 00:12:06,000 That is one loaded chicken gun. 251 00:12:06,000 --> 00:12:07,000 I'm good. 252 00:12:07,000 --> 00:12:08,000 All right. 253 00:12:08,000 --> 00:12:11,000 We are arming the chicken cannon. 254 00:12:11,000 --> 00:12:13,000 I'm going to stand back here. 255 00:12:13,000 --> 00:12:14,000 All right. 256 00:12:14,000 --> 00:12:18,000 Three, two, one. 257 00:12:18,000 --> 00:12:20,000 All right. 258 00:12:20,000 --> 00:12:22,000 I'm talking about. 259 00:12:22,000 --> 00:12:24,000 I know you're right there. 260 00:12:24,000 --> 00:12:25,000 I'm good man. 261 00:12:25,000 --> 00:12:28,000 Out of the barrel and free of the sabote, 262 00:12:28,000 --> 00:12:32,000 the frozen chicken clocked 121 miles an hour. 263 00:12:32,000 --> 00:12:33,000 Wow. 264 00:12:33,000 --> 00:12:36,000 So much for the blast shield. 265 00:12:36,000 --> 00:12:40,000 So even if you're flying with a rated plexiglass shield 266 00:12:40,000 --> 00:12:44,000 in front of your plane, you're in some serious danger. 267 00:12:44,000 --> 00:12:46,000 Where's the chicken? 268 00:12:46,000 --> 00:12:48,000 What the chicken? 269 00:12:48,000 --> 00:12:52,000 Oh my God. 270 00:12:52,000 --> 00:12:57,000 You know, who knows what the damage to the neighbors would have been 271 00:12:57,000 --> 00:12:59,000 if this had gotten out? 272 00:12:59,000 --> 00:13:02,000 You know, that's about one of the more destructive things 273 00:13:02,000 --> 00:13:05,000 that I've ever done. 274 00:13:05,000 --> 00:13:07,000 That was cool. 275 00:13:07,000 --> 00:13:09,000 Yeah, that was exceedingly cool. 276 00:13:09,000 --> 00:13:12,000 Let's do a thought. 277 00:13:12,000 --> 00:13:15,000 A replacement windshield is fitted for another shot. 278 00:13:15,000 --> 00:13:18,000 This time, a thawed chicken. 279 00:13:18,000 --> 00:13:23,000 The big question, will it cause as much damage as a frozen one? 280 00:13:23,000 --> 00:13:28,000 Three, two, one. 281 00:13:28,000 --> 00:13:30,000 Whoa. 282 00:13:30,000 --> 00:13:36,000 Under the same pressure, the thawed chicken was marginally slower 283 00:13:36,000 --> 00:13:45,000 than the frozen one, but still reached a destructive 99.5 miles an hour. 284 00:13:45,000 --> 00:13:49,000 For the next shot, the tank pressure will be reduced by more than half 285 00:13:49,000 --> 00:13:51,000 down to 50 psi. 286 00:13:51,000 --> 00:13:55,000 They're hoping to see a difference between frozen and thawed 287 00:13:55,000 --> 00:13:57,000 at a slower speed. 288 00:13:57,000 --> 00:14:02,000 And three, two, one. 289 00:14:02,000 --> 00:14:05,000 Another frozen bird is blasted. 290 00:14:05,000 --> 00:14:09,000 This one at 128 miles an hour. 291 00:14:09,000 --> 00:14:10,000 Jamie. 292 00:14:10,000 --> 00:14:11,000 Yeah? 293 00:14:11,000 --> 00:14:15,000 There was no difference in speed between 120 psi and 50 psi. 294 00:14:15,000 --> 00:14:17,000 It may just be that initial blast. 295 00:14:17,000 --> 00:14:21,000 Like, it's probably within the first, like, eighth of the valve opening. 296 00:14:21,000 --> 00:14:23,000 It's gone or something, you know? 297 00:14:23,000 --> 00:14:28,000 Once more into the breach for the thawed bird at the 50 psi mark. 298 00:14:28,000 --> 00:14:31,000 Three, two, one. 299 00:14:31,000 --> 00:14:36,000 It's clock speed, a shattering 132 miles an hour. 300 00:14:36,000 --> 00:14:42,000 You know, if anything, the thawed chicken leaves a bigger hole. 301 00:14:42,000 --> 00:14:44,000 Which would kind of make sense. 302 00:14:44,000 --> 00:14:45,000 It would. 303 00:14:45,000 --> 00:14:48,000 Its impact spreads out as it hits, but it's still the same amount of mass 304 00:14:48,000 --> 00:14:50,000 going through the same amount of space. 305 00:14:50,000 --> 00:14:57,000 They cut the pressure again to just 25 psi for the frozen valve. 306 00:14:57,000 --> 00:15:00,000 And then thawed. 307 00:15:00,000 --> 00:15:03,000 The Mythbusters are some outcome. 308 00:15:03,000 --> 00:15:06,000 All their flying poultry, highly destructive. 309 00:15:06,000 --> 00:15:08,000 I'm totally shocked. 310 00:15:08,000 --> 00:15:10,000 Does that mean that the myth is busted? 311 00:15:10,000 --> 00:15:13,000 I think that would mean that the myth is definitely busted. 312 00:15:13,000 --> 00:15:16,000 But wait, there's a hitch. 313 00:15:16,000 --> 00:15:24,000 Those light aircraft windshields they bought are not rated for bird strikes. 314 00:15:24,000 --> 00:15:26,000 Well, Jamie, that's the biggest screw up we've ever done. 315 00:15:26,000 --> 00:15:29,000 I mean, we're supposed to test the difference between frozen and thawed chickens 316 00:15:29,000 --> 00:15:31,000 and the Piper Cherokee. 317 00:15:31,000 --> 00:15:34,000 Its windscreen is not even rated to be smacked into by anything. 318 00:15:34,000 --> 00:15:38,000 Yeah, it was like trying to check the difference between a 22 and a 357 319 00:15:38,000 --> 00:15:40,000 by shooting at a cardboard box. 320 00:15:40,000 --> 00:15:42,000 I mean, it looked really destructive. 321 00:15:42,000 --> 00:15:45,000 It looked great, but it didn't really tell us anything. 322 00:15:45,000 --> 00:15:46,000 Yeah. 323 00:15:46,000 --> 00:15:49,000 For the moment, the Mythbusters are stymied. 324 00:15:49,000 --> 00:15:54,000 But already they're formulating a new plan to measure the chicken's force of impact. 325 00:15:54,000 --> 00:15:57,000 We'll tell you about it a little later in the show. 326 00:15:57,000 --> 00:16:00,000 It automatically deboned the chicken, didn't it? 327 00:16:00,000 --> 00:16:05,000 Up next, the Goldfish Memory Face Off. 328 00:16:05,000 --> 00:16:08,000 I also, in fact, trained a fish to ring a bell. 329 00:16:08,000 --> 00:16:13,000 I don't have anything like that kind of pedigree with Goldfish training regiments. 330 00:16:14,000 --> 00:16:26,000 Does a Goldfish's Memory last more than three seconds? 331 00:16:26,000 --> 00:16:29,000 He's looking at it. He's trying to eat it. 332 00:16:29,000 --> 00:16:32,000 Jamie and Adam are locked in combat. 333 00:16:32,000 --> 00:16:34,000 We have to identify the smart ones. 334 00:16:34,000 --> 00:16:37,000 Who's the superior fish wrangler? 335 00:16:37,000 --> 00:16:40,000 Back in the Amazon when I used to train piranhas. 336 00:16:40,000 --> 00:16:45,000 Oh, and does a Goldfish's Memory last more than three seconds? 337 00:16:49,000 --> 00:16:52,000 This Myth's a pretty laid-back one, huh, Jamie? 338 00:16:52,000 --> 00:16:58,000 Yeah. The Myth says that you can put a Goldfish in a small bowl, and they're okay with it, 339 00:16:58,000 --> 00:17:02,000 because they're so stupid that by the time they make it around the bowl, 340 00:17:02,000 --> 00:17:06,000 in about three seconds, they've just forgotten where they were. 341 00:17:06,000 --> 00:17:12,000 I think that we tell this story in order to placate ourselves and allow us to keep animals in a small tank, 342 00:17:12,000 --> 00:17:15,000 which usually we would perceive as being kind of cruel. 343 00:17:15,000 --> 00:17:22,000 And you could certainly keep it in a small bowl, because every time it goes around that bowl, it's a new experience. 344 00:17:22,000 --> 00:17:27,000 So what we really want to test here is what is the memory span of the average Goldfish? 345 00:17:27,000 --> 00:17:33,000 Well, what I thought we'd do is build a maze, and the Goldfish will have to be taught how to make it through the maze. 346 00:17:33,000 --> 00:17:37,000 And if they can remember that, we'll know a little bit more how smart they are. 347 00:17:37,000 --> 00:17:43,000 So what you're talking about is not just a Goldfish intelligence test, but a Mythbusters intelligence test as well. 348 00:17:43,000 --> 00:17:45,000 You can look at it that way. 349 00:17:45,000 --> 00:17:48,000 One that I think I will win. 350 00:17:48,000 --> 00:17:52,000 So the guys want to train Goldfish to swim through a maze. 351 00:17:52,000 --> 00:17:58,000 If they do it, they'll prove they're smarter than we think. The Goldfish will look clever too. 352 00:17:58,000 --> 00:18:01,000 Have you heard of the myth that Goldfish only have three seconds of memory? 353 00:18:01,000 --> 00:18:10,000 Yes, I have. Their brains are pretty small, and it's about 2% of their body weight, so you can figure that they're not going to have too much of a memory. 354 00:18:10,000 --> 00:18:16,000 Steve, the pet shop guy, has all the fish and all the accessories the Mythbusters need. 355 00:18:16,000 --> 00:18:20,000 I think this is definitely the one for me, Jamie. It's a deep sea diver with a shark. 356 00:18:20,000 --> 00:18:23,000 But the Goldfish have needs too. 357 00:18:23,000 --> 00:18:29,000 This is a 38 gallon. I have the best food for Goldfish. You make sure that you have a good water conditioner. 358 00:18:29,000 --> 00:18:32,000 Those are perfect. What do we need? 10 of those? 359 00:18:32,000 --> 00:18:33,000 Yeah, 5. 360 00:18:33,000 --> 00:18:34,000 5 in each tank? 361 00:18:34,000 --> 00:18:35,000 Yeah. 362 00:18:35,000 --> 00:18:38,000 It's the easiest sale Steve's ever made. 363 00:18:38,000 --> 00:18:45,000 Two tanks, 10 fish, and enough supplies to feed a whale. 364 00:18:45,000 --> 00:18:52,000 Jamie and Adam have given themselves 45 days to train the fish and bust the myth. 365 00:18:52,000 --> 00:18:57,000 They've each got a tank, and each will devise their own training method. 366 00:18:57,000 --> 00:18:59,000 The competition is heating up. 367 00:18:59,000 --> 00:19:04,000 I think that I shall be the best trainer. 368 00:19:04,000 --> 00:19:11,000 Purely because of the fact that training animals requires above all consistency. 369 00:19:11,000 --> 00:19:16,000 Adam is not a very consistent person. 370 00:19:16,000 --> 00:19:23,000 Turns out Jamie has another advantage. He used to own a pet shop, and he knows his fish. 371 00:19:23,000 --> 00:19:28,000 In addition to his time in the Special Forces and being the International WISTS Champion and even being a lion owner, 372 00:19:28,000 --> 00:19:33,000 Jamie is probably one of only a handful of people in the world who has actually trained a Goldfish to ring a bell. 373 00:19:33,000 --> 00:19:38,000 I don't have anything like that kind of pedigree with Goldfish training regiments. 374 00:19:38,000 --> 00:19:40,000 Oh, look at that. 375 00:19:40,000 --> 00:19:48,000 Undaunted, Adam is determined to rise to the ultimate challenge of teaching fish to swim through a maze. 376 00:19:48,000 --> 00:19:53,000 I think I'm in fact just going to leave mine totally uncovered. 377 00:19:53,000 --> 00:20:00,000 I'm going to kick your Goldfish ass. 378 00:20:00,000 --> 00:20:06,000 It's day one of the Great Goldfish Challenge. 379 00:20:06,000 --> 00:20:14,000 Jamie and Adam are trying to bust the myth that Goldfish only have a three-second memory 380 00:20:14,000 --> 00:20:17,000 by training them to swim through a simple maze. 381 00:20:17,000 --> 00:20:23,000 But this challenge has already transcended the myth. It's a battle for bragging rights. 382 00:20:23,000 --> 00:20:27,000 I better not go get a tube and feed them with a tube because I'll kick his butt. That was my idea. 383 00:20:27,000 --> 00:20:32,000 In fact, Jamie has something entirely different in mind. 384 00:20:32,000 --> 00:20:37,000 He's making bright plastic holes, which he hopes will be to the fish's liking. 385 00:20:37,000 --> 00:20:44,000 I'm going to get them used to taking their food out of the middle of the hole by making this colorful hole 386 00:20:44,000 --> 00:20:51,000 that they'll easily recognize that has some mesh suspended in the middle of it that will put the food in. 387 00:20:51,000 --> 00:21:04,000 Jamie's holes are already attracting interest. 388 00:21:04,000 --> 00:21:08,000 But will the fish be as attracted to the holes as Adam is? 389 00:21:08,000 --> 00:21:15,000 If someone comes down out of the hole, maybe they'll start to look around and eventually find it. 390 00:21:15,000 --> 00:21:21,000 There we go. You're looking at it. He's looking at it. He's trying to eat it. 391 00:21:21,000 --> 00:21:27,000 Oh my God, he's taking the bait almost. We have to identify the smart ones. 392 00:21:27,000 --> 00:21:37,000 School is in for Adam too. He's trying to be the goldfish to understand their needs. He has an idea. 393 00:21:37,000 --> 00:21:44,000 Instead of using the store-bought tank dividers, Adam is making his own out of plastic. 394 00:21:44,000 --> 00:21:49,000 He'll custom make the course based on his deep grasp of fish behavior. 395 00:21:49,000 --> 00:21:56,000 If I get them comfortable with the fact that they can go through, perhaps they'll understand that there is a way to get there 396 00:21:56,000 --> 00:22:02,000 but all they see is just this black ring that's exposed. They don't know that they can actually go and swim around over there. 397 00:22:02,000 --> 00:22:07,000 So they have their strategies and the battle of the fish tags is on. 398 00:22:07,000 --> 00:22:12,000 Adam's clear dividers versus Jamie's gaudy plastic. 399 00:22:12,000 --> 00:22:15,000 May the best fish man win. 400 00:22:15,000 --> 00:22:24,000 Eight days since the Goldfish Memory Challenge began and Adam's got a problem or rather his fish do. 401 00:22:24,000 --> 00:22:35,000 Smells. Oh no. Oh no. I've got a dead fish. 402 00:22:35,000 --> 00:22:42,000 Okay, something's going on. I don't like this whole thing. I'm going to call the pet store. I'm going to replace the water completely. 403 00:22:42,000 --> 00:22:46,000 Jamie's water is clearer. Mine's really, really foggy. 404 00:22:46,000 --> 00:22:55,000 The thing is, is the tank is really foggy and then last night one of the Goldfish died. 405 00:22:55,000 --> 00:23:01,000 Turns out the filter hasn't removed the ammonia in the water created by the fish waste. 406 00:23:01,000 --> 00:23:07,000 A tank that's working correctly has a certain amount of bacteria that's grown in the filter that processes the ammonia. 407 00:23:07,000 --> 00:23:12,000 It actually takes like four to eight weeks for it to fully take effect. 408 00:23:12,000 --> 00:23:21,000 Given everything is going so swimmingly in Jamie's tank, perhaps Adam's solid plastic dividers are messing with the filter. 409 00:23:21,000 --> 00:23:26,000 Whatever the cause, eight weeks is time Adam just doesn't have. 410 00:23:26,000 --> 00:23:30,000 I'm trying to train them but it turns out I'm just trying to keep them alive. 411 00:23:30,000 --> 00:23:38,000 Jamie's fish aren't just alive. They're happy, healthy and apparently pretty smart. 412 00:23:38,000 --> 00:23:48,000 They seem to know automatically where the food is. I would say that even now, even though we haven't got them to go really through anything in terms of a maze as such, 413 00:23:48,000 --> 00:23:56,000 that the myth is busted because they clearly recognize either me or the location where the food is being delivered. 414 00:23:56,000 --> 00:24:00,000 They are clearly capable of some sort of minimal memory. 415 00:24:00,000 --> 00:24:05,000 I think the myth that Goldfish are easy to maintain and hardy fish has also been busted. 416 00:24:06,000 --> 00:24:12,000 There are three weeks left in this challenge. Adam has a lot of ground to make up. 417 00:24:12,000 --> 00:24:18,000 Look, they're even growing little Jamie mustaches now. They're like, oh, thanks for the food every morning. 418 00:24:18,000 --> 00:24:27,000 Coming up, Adam and Jamie have bigger fish to fry as they attempt to prove who is the superior fish wrangler. 419 00:24:27,000 --> 00:24:29,000 It's a record. 420 00:24:30,000 --> 00:24:35,000 Remember, don't try this at home. 421 00:24:35,000 --> 00:24:38,000 We've got years of experience that keeps us safe. 422 00:24:38,000 --> 00:24:47,000 It's been nearly six weeks since the Goldfish Challenge began. Today, all their hard work will be put to the test. 423 00:24:47,000 --> 00:24:56,000 Remember, they're testing the myth Goldfish only have a three second memory by trying to train them to swim through a simple maze. 424 00:24:57,000 --> 00:25:03,000 The Heinemann technique is to associate orange plastic with food. It's working. 425 00:25:03,000 --> 00:25:06,000 Oh, look, they see the orange thing. They want to go for it. 426 00:25:06,000 --> 00:25:15,000 Jamie appears to have science on his side. Studies have shown that Goldfish repeatedly respond to color for food rewards. 427 00:25:15,000 --> 00:25:20,000 In other words, they seem to have memory longer than three seconds. 428 00:25:20,000 --> 00:25:28,000 Camp Savage has struck troubled waters with an ammonia problem. There are only two contenders left. 429 00:25:28,000 --> 00:25:31,000 They just like, you know, bang their heads in the corner over here. 430 00:25:31,000 --> 00:25:37,000 The first to get fish through their maze wins and busts the myth. 431 00:25:37,000 --> 00:25:40,000 Time this starting now. 432 00:25:40,000 --> 00:25:42,000 They're off and racing. 433 00:25:42,000 --> 00:25:45,000 Hey guys, here's your food. 434 00:25:45,000 --> 00:25:49,000 Corn boys, there you go. 435 00:25:49,000 --> 00:25:54,000 Jamie's school has learned its lessons well. 436 00:25:54,000 --> 00:25:57,000 But Adam's guys must have been playing hooky. 437 00:25:57,000 --> 00:26:01,000 I think it's quite obvious what's happening or not happening. 438 00:26:01,000 --> 00:26:07,000 They seem to be fascinated with their reflection on the other end of the day. 439 00:26:07,000 --> 00:26:11,000 Jamie's crew is halfway through and going swimmingly. 440 00:26:11,000 --> 00:26:17,000 You know, you want it. Look at them. They're frantic to get through there. 441 00:26:17,000 --> 00:26:22,000 Maybe I should give them a compass. 442 00:26:22,000 --> 00:26:25,000 Who's to say luck doesn't play a part in these things? 443 00:26:25,000 --> 00:26:29,000 They're through the first barrier but not for long. 444 00:26:29,000 --> 00:26:31,000 No, no, no, no bag. 445 00:26:31,000 --> 00:26:36,000 There's no backtracking in Jamie's tank. The first fish is through. 446 00:26:36,000 --> 00:26:38,000 One minute. 447 00:26:38,000 --> 00:26:43,000 The rest of the gang isn't far behind except one. 448 00:26:43,000 --> 00:26:47,000 Interesting to note there's one fish that is the stupidest one. 449 00:26:47,000 --> 00:26:53,000 There's a little redhead in the back and he's the skinniest. 450 00:26:53,000 --> 00:26:57,000 Adam apparently has two skinny fish. 451 00:26:57,000 --> 00:27:01,000 I don't understand the total ignorance of this panel. 452 00:27:01,000 --> 00:27:03,000 It's like this wall doesn't even exist for him. 453 00:27:03,000 --> 00:27:11,000 I would say that without a doubt one minute to make it through the maze is a lot quicker than random. 454 00:27:11,000 --> 00:27:13,000 And for Adam's fish? 455 00:27:13,000 --> 00:27:15,000 Nine minutes. 456 00:27:15,000 --> 00:27:21,000 Day 43 of the Goldfish Memory Test and Adam is still behind. 457 00:27:21,000 --> 00:27:26,000 Listen, I don't have any work to do on this experiment. These fish have a lot of work to do. 458 00:27:26,000 --> 00:27:31,000 I'm just giving them the framework with which to pre-themselves. 459 00:27:31,000 --> 00:27:33,000 For all Goldfish kind. 460 00:27:33,000 --> 00:27:36,000 Adam just got stupid fish. What are you going to do? 461 00:27:36,000 --> 00:27:39,000 Alright boys, you ready? 462 00:27:39,000 --> 00:27:41,000 Whistle 463 00:27:44,000 --> 00:27:49,000 Meanwhile, Jamie's A students are lining up at the gate. 464 00:27:49,000 --> 00:27:52,000 They're looking perky this morning. 465 00:27:52,000 --> 00:27:54,000 Just going for it. 466 00:27:54,000 --> 00:28:00,000 The starting gun has sounded. Jamie's looking to go under 60 seconds. 467 00:28:01,000 --> 00:28:04,000 Oh, oh, oh. 468 00:28:04,000 --> 00:28:10,000 Yay, that was, let's see, 25 seconds. It's a record. 469 00:28:10,000 --> 00:28:15,000 They were like definitely, way to go guys. 470 00:28:15,000 --> 00:28:19,000 Mine are eating your own poo. 471 00:28:19,000 --> 00:28:21,000 Well they seem healthy for all that. 472 00:28:21,000 --> 00:28:26,000 I know that everyone's going to take me to task for wasting these fishes time. 473 00:28:26,000 --> 00:28:28,000 Hey, they're both in the second chamber though. 474 00:28:28,000 --> 00:28:31,000 Oh, they go back. 475 00:28:35,000 --> 00:28:38,000 Okay guys. 476 00:28:38,000 --> 00:28:41,000 I'm going to awake this morning. 477 00:28:41,000 --> 00:28:46,000 Jamie is confident his fish are drawing on all their memory cells. 478 00:28:46,000 --> 00:28:52,000 It's the final day, day 45. Will they find their food faster? 479 00:28:52,000 --> 00:28:53,000 Okay, that's a go. 480 00:28:53,000 --> 00:28:56,000 Alright, timer's starting. 481 00:28:56,000 --> 00:28:59,000 There we go, we're going through one. 482 00:28:59,000 --> 00:29:02,000 Go back through. 483 00:29:05,000 --> 00:29:08,000 Oh, they're looking like they're going to do it. 484 00:29:08,000 --> 00:29:09,000 20 seconds. 485 00:29:09,000 --> 00:29:12,000 Oh, they've lost the record. 486 00:29:12,000 --> 00:29:15,000 25 seconds. 487 00:29:15,000 --> 00:29:17,000 There we go. Almost. 488 00:29:17,000 --> 00:29:19,000 35 seconds. 489 00:29:19,000 --> 00:29:21,000 Come on, handsome. 490 00:29:21,000 --> 00:29:23,000 There it goes. 491 00:29:23,000 --> 00:29:25,000 There we go. 492 00:29:25,000 --> 00:29:27,000 Not bad at all. 40 seconds. 493 00:29:27,000 --> 00:29:32,000 40 seconds. I think that judging by what I'm seeing that that's probably the threshold, 494 00:29:32,000 --> 00:29:35,000 plus or minus 30 seconds to get through. 495 00:29:35,000 --> 00:29:38,000 And 30 seconds I think is pretty good to make it through four holes. 496 00:29:38,000 --> 00:29:45,000 It's clear that they've learned and it's clear that they do in fact have a memory longer than 3 seconds. 497 00:29:45,000 --> 00:29:48,000 Absolutely. I mean, I'm impressed how fast that is. 498 00:29:48,000 --> 00:29:55,000 My fish on average sort of randomly take between like three and 20 minutes to get to their food. 499 00:29:55,000 --> 00:29:58,000 I mean, you guys definitely know what's going on. 500 00:29:58,000 --> 00:30:01,000 Mitch Busted. 501 00:30:01,000 --> 00:30:03,000 Thanks, Adam. 502 00:30:03,000 --> 00:30:06,000 Alright, goodnight fish. 503 00:30:08,000 --> 00:30:11,000 See, it's that kind of behavior that screwed him up. 504 00:30:11,000 --> 00:30:14,000 It's like, goodnight fish. Yeah, that helps. 505 00:30:14,000 --> 00:30:17,000 Bang, bang, bang. 506 00:30:17,000 --> 00:30:20,000 They don't need to be trained anymore. 507 00:30:20,000 --> 00:30:26,000 Next, does a duck's quack, echo, and still to come? 508 00:30:26,000 --> 00:30:29,000 We are arming the chicken cannon. 509 00:30:29,000 --> 00:30:31,000 Which chicken is more destructive? 510 00:30:31,000 --> 00:30:33,000 Frozen or thawed. 511 00:30:33,000 --> 00:30:35,000 I think this one's thawed. 512 00:30:36,000 --> 00:30:39,000 Another bird-brained myth to bust. 513 00:30:39,000 --> 00:30:41,000 Could it be true? 514 00:30:41,000 --> 00:30:46,000 Or have Adam and Jamie gone quackers? 515 00:30:46,000 --> 00:30:49,000 Anything to say to the ducks back home? 516 00:30:49,000 --> 00:30:52,000 So Jamie, what are we working on? 517 00:30:52,000 --> 00:30:55,000 Why are there ducks pooping all over your desk? 518 00:30:55,000 --> 00:30:57,000 I don't know. 519 00:30:57,000 --> 00:30:59,000 I don't know. 520 00:30:59,000 --> 00:31:01,000 I don't know. 521 00:31:01,000 --> 00:31:03,000 So Jamie, what are we working on? 522 00:31:03,000 --> 00:31:05,000 Why are there ducks pooping all over your desk? 523 00:31:05,000 --> 00:31:08,000 Well, the myth is that a duck's quack does not echo. 524 00:31:08,000 --> 00:31:11,000 That sounds kind of simple. 525 00:31:11,000 --> 00:31:16,000 Well, I guess we'll figure out a way of making it complicated, won't we? 526 00:31:16,000 --> 00:31:18,000 This really is an internet story. 527 00:31:18,000 --> 00:31:21,000 Not even a story, just a little factoid. 528 00:31:21,000 --> 00:31:27,000 And it generally comes out on these internet lists of facts that are very odd. 529 00:31:27,000 --> 00:31:32,000 In the past, they would have circulated as Xerox lore or Facts lore. 530 00:31:32,000 --> 00:31:37,000 The boys will take the lore into their own hands down on the farm. 531 00:31:39,000 --> 00:31:41,000 Adam, don't let their looks deceive you. 532 00:31:41,000 --> 00:31:43,000 These are actually quite deadly. 533 00:31:45,000 --> 00:31:49,000 If anyone can answer this myth, it should be Jim Reichard, 534 00:31:49,000 --> 00:31:53,000 part of America's oldest duck farming family. 535 00:31:53,000 --> 00:31:57,000 The Reichards have been listening to ducks quack for more than a century, 536 00:31:57,000 --> 00:32:00,000 but there's one thing they haven't heard. 537 00:32:00,000 --> 00:32:03,000 Jim, have you heard of the myth that a duck's quack will not echo? 538 00:32:03,000 --> 00:32:05,000 I've never heard that. 539 00:32:05,000 --> 00:32:08,000 I've grown up on the ranch, you know. 540 00:32:08,000 --> 00:32:10,000 I've never had anybody ask me. 541 00:32:11,000 --> 00:32:14,000 It's pretty hard to ruffle Jim's feathers. 542 00:32:14,000 --> 00:32:18,000 He's agreed to help the mythbusters with some test subjects. 543 00:32:19,000 --> 00:32:24,000 I asked for volunteers this morning and I came up with a couple, you know. 544 00:32:24,000 --> 00:32:28,000 Meet Bob on the left and Roy. 545 00:32:28,000 --> 00:32:32,000 You go down that side, I'll walk him down this way. 546 00:32:40,000 --> 00:32:42,000 That wasn't so bad, was it? 547 00:32:42,000 --> 00:32:44,000 That wasn't so bad. 548 00:32:45,000 --> 00:32:48,000 So, they've got their ducks in a row. 549 00:32:50,000 --> 00:32:53,000 Now they need a man who can catch an echo. 550 00:32:54,000 --> 00:32:56,000 That would be him now. 551 00:32:59,000 --> 00:33:02,000 Roger Schwenke is an acoustician, 552 00:33:02,000 --> 00:33:05,000 which means he knows a thing or two about noise. 553 00:33:05,000 --> 00:33:08,000 Rogers agreed to help catch a duck's echo. 554 00:33:08,000 --> 00:33:11,000 The science is simple enough. 555 00:33:11,000 --> 00:33:14,000 Sounds are just vibrations in the air. 556 00:33:14,000 --> 00:33:18,000 An echo happens when those vibrations hit something and bounce back. 557 00:33:18,000 --> 00:33:23,000 So one of the challenges I have for you is we're going to use a tyclip mic 558 00:33:23,000 --> 00:33:25,000 as the trigger mic to start the recording. 559 00:33:25,000 --> 00:33:28,000 And we need to attach that to the duck. 560 00:33:28,000 --> 00:33:30,000 Duck tape. 561 00:33:35,000 --> 00:33:38,000 That microphone acts as a trigger. 562 00:33:38,000 --> 00:33:43,000 It'll hear Bob crack and switch on the main mic a few yards away. 563 00:33:46,000 --> 00:33:51,000 That will record the initial crack, then listen for echoes bouncing back. 564 00:33:51,000 --> 00:33:54,000 The whole shooting match plotted by a computer. 565 00:33:54,000 --> 00:33:57,000 You know what happens to ducks that don't cooperate, huh? 566 00:33:57,000 --> 00:33:59,000 Yeah. 567 00:34:01,000 --> 00:34:02,000 Got it. 568 00:34:02,000 --> 00:34:04,000 That was a test. 569 00:34:04,000 --> 00:34:08,000 You can see the initial shot from the starter's pistol is the peak on the left. 570 00:34:08,000 --> 00:34:12,000 And the smaller bumps after it are the echoes coming back. 571 00:34:12,000 --> 00:34:16,000 The system works now for the ducks. 572 00:34:16,000 --> 00:34:21,000 I'll tell you guys to be quiet because any sound will start the computer recording. 573 00:34:21,000 --> 00:34:25,000 And then you need to silently induce the duck to quack. 574 00:34:25,000 --> 00:34:27,000 You need to quack. 575 00:34:27,000 --> 00:34:30,000 Silently induce a duck to quack. 576 00:34:30,000 --> 00:34:32,000 Look me in the eye and quack. 577 00:34:32,000 --> 00:34:34,000 Quack. 578 00:34:34,000 --> 00:34:35,000 Come on, boy. 579 00:34:35,000 --> 00:34:36,000 Quack. 580 00:34:36,000 --> 00:34:37,000 Quack. 581 00:34:37,000 --> 00:34:38,000 All right, see if they're ready. 582 00:34:38,000 --> 00:34:40,000 Are you guys ready? 583 00:34:40,000 --> 00:34:42,000 Don't mess with me, duck. 584 00:34:42,000 --> 00:34:44,000 When I say quack, you're going to quack, right? 585 00:34:44,000 --> 00:34:46,000 I'm the boss here. 586 00:34:46,000 --> 00:34:48,000 Don't give me any beak. 587 00:34:48,000 --> 00:34:50,000 Quiet! 588 00:34:50,000 --> 00:34:52,000 Give him a thumbs up. 589 00:34:52,000 --> 00:35:04,000 It's like he's trying to collect a loan from the duck. 590 00:35:04,000 --> 00:35:06,000 Duck loan collection agency. 591 00:35:06,000 --> 00:35:10,000 We want to talk to you about some outstanding feed. 592 00:35:10,000 --> 00:35:13,000 Who'd have thought ducks get cold feet? 593 00:35:13,000 --> 00:35:15,000 Oh, boy. 594 00:35:15,000 --> 00:35:18,000 There's nothing but wind noise. 595 00:35:18,000 --> 00:35:21,000 Clearly, Bob's got stage fright. 596 00:35:21,000 --> 00:35:23,000 I want you to do this. Got it? 597 00:35:23,000 --> 00:35:25,000 Quack. 598 00:35:25,000 --> 00:35:27,000 Quack, damn you. 599 00:35:27,000 --> 00:35:29,000 Done. 600 00:35:29,000 --> 00:35:31,000 I'm going to swap them out with the other one. 601 00:35:31,000 --> 00:35:33,000 All right, I'll bring them over to you. 602 00:35:33,000 --> 00:35:36,000 Bob's out. Roy's in. 603 00:35:36,000 --> 00:35:39,000 But a funny thing happens in the changeover. 604 00:35:39,000 --> 00:35:42,000 Oh, maybe they're taking him together. 605 00:35:42,000 --> 00:35:45,000 They just needed someone to talk to. 606 00:35:45,000 --> 00:35:47,000 Seems obvious now. 607 00:35:47,000 --> 00:35:50,000 The mythbusters are back in the hunt. 608 00:35:50,000 --> 00:36:00,000 That looks like a quack. 609 00:36:00,000 --> 00:36:04,000 It's astonishing how well that works. 610 00:36:04,000 --> 00:36:06,000 There's something else astonishing. 611 00:36:06,000 --> 00:36:09,000 They've got the quack, but they don't have an echo. 612 00:36:09,000 --> 00:36:11,000 Not a one. 613 00:36:11,000 --> 00:36:16,000 But then there's not much here for the sound to bounce off. 614 00:36:16,000 --> 00:36:20,000 In terms of trees and plants and so on, 615 00:36:20,000 --> 00:36:23,000 you don't get very much of an echo. 616 00:36:23,000 --> 00:36:26,000 Certainly not off of leaves. 617 00:36:26,000 --> 00:36:29,000 Roger thinks if there were any echoes, 618 00:36:29,000 --> 00:36:32,000 the background noise drowned them out. 619 00:36:32,000 --> 00:36:34,000 A sweetheart duck. 620 00:36:34,000 --> 00:36:37,000 To prove that and bust this silly myth once and for all, 621 00:36:37,000 --> 00:36:40,000 Bob and Roy will have to go high-fiving. 622 00:36:40,000 --> 00:36:45,000 Okay, that's really cool. 623 00:36:45,000 --> 00:36:49,000 Meyer Sound makes top-of-the-range concert speakers. 624 00:36:49,000 --> 00:36:52,000 Roger's their staff scientist. 625 00:36:52,000 --> 00:36:54,000 Hi, guys. 626 00:36:54,000 --> 00:36:57,000 They plan two experiments at the lab. 627 00:36:57,000 --> 00:37:01,000 First, to capture a crystal-clear quack with no echo. 628 00:37:01,000 --> 00:37:05,000 Then they'll record Bob and Roy in a room that does echo. 629 00:37:05,000 --> 00:37:08,000 The computer should show if there's a difference. 630 00:37:08,000 --> 00:37:12,000 To get the clear quack, they'll use an anechoic chamber. 631 00:37:12,000 --> 00:37:15,000 It absorbs echoes by trapping sound vibrations 632 00:37:15,000 --> 00:37:18,000 in baffles on the walls and ceiling. 633 00:37:18,000 --> 00:37:22,000 Let's take them in the chamber. 634 00:37:22,000 --> 00:37:23,000 There we go. 635 00:37:23,000 --> 00:37:26,000 Bob and Roy are game. 636 00:37:26,000 --> 00:37:28,000 I noticed there's a hole in the screen. 637 00:37:28,000 --> 00:37:31,000 Maybe I can goose the duck. 638 00:37:31,000 --> 00:37:42,000 Nothing. 639 00:37:42,000 --> 00:37:45,000 Bob and Roy have wised up. 640 00:37:45,000 --> 00:37:50,000 It's all starting to look like a high-tech waste of time. 641 00:37:50,000 --> 00:37:55,000 When, for no apparent reason, Bob and Roy get chatty. 642 00:37:55,000 --> 00:37:56,000 Got something. 643 00:37:56,000 --> 00:37:59,000 It's a pristine quack. 644 00:37:59,000 --> 00:38:03,000 It turns out there is something different about it after all. 645 00:38:03,000 --> 00:38:06,000 Well, I never, he said. 646 00:38:06,000 --> 00:38:10,000 It's a series of exponentially decaying impulses, 647 00:38:10,000 --> 00:38:15,000 which looks almost exactly like room reverberation. 648 00:38:15,000 --> 00:38:20,000 This is the exact moment Jamie is blinded by science. 649 00:38:20,000 --> 00:38:22,000 Have you been paying attention? 650 00:38:22,000 --> 00:38:25,000 What they've found is that when you plot it on the computer, 651 00:38:25,000 --> 00:38:28,000 the quack looks exactly like an echo. 652 00:38:28,000 --> 00:38:31,000 And that could explain the origins of the myth. 653 00:38:31,000 --> 00:38:33,000 Its echo might actually sound just like it's quack. 654 00:38:33,000 --> 00:38:36,000 It might blend together for you. 655 00:38:36,000 --> 00:38:38,000 So you might be hearing an echo, 656 00:38:38,000 --> 00:38:42,000 but think you're still hearing the quack. 657 00:38:42,000 --> 00:38:46,000 Time to crank up the second experiment in the echo-y room. 658 00:38:46,000 --> 00:38:49,000 Hopefully the computer can tell the difference. 659 00:38:49,000 --> 00:38:53,000 You ready to quack for science? 660 00:38:53,000 --> 00:38:56,000 Okay, quiet please. 661 00:38:56,000 --> 00:38:58,000 Go. 662 00:39:02,000 --> 00:39:03,000 Got it. 663 00:39:03,000 --> 00:39:05,000 You did really, really good. 664 00:39:05,000 --> 00:39:06,000 Good job. 665 00:39:06,000 --> 00:39:07,000 You did excellently. 666 00:39:07,000 --> 00:39:10,000 Finally, Bob and Roy have produced on cue. 667 00:39:10,000 --> 00:39:14,000 This cavern of a warehouse is perfect for echoes. 668 00:39:14,000 --> 00:39:18,000 If there are any, the moment of truth has arrived. 669 00:39:18,000 --> 00:39:20,000 Okay, so you want to see our quacks? 670 00:39:20,000 --> 00:39:23,000 So here's the duck quack that we recorded. 671 00:39:23,000 --> 00:39:25,000 This initial part here is the quack. 672 00:39:25,000 --> 00:39:27,000 Does that mean it echoes? 673 00:39:27,000 --> 00:39:28,000 You know what? 674 00:39:28,000 --> 00:39:30,000 It's just hard to tell. 675 00:39:30,000 --> 00:39:31,000 Really? 676 00:39:31,000 --> 00:39:33,000 The reverberation looks just like the quack. 677 00:39:33,000 --> 00:39:36,000 You'd think the combined brains of man and machine 678 00:39:36,000 --> 00:39:39,000 would be more than a match for Bob and Roy. 679 00:39:39,000 --> 00:39:43,000 But somehow, once again, they've frustrated science. 680 00:39:43,000 --> 00:39:44,000 Quiet. 681 00:39:44,000 --> 00:39:48,000 And for one final time, they'll have to sing for their supper. 682 00:39:48,000 --> 00:39:52,000 Roger knows the echo is there somewhere. 683 00:39:52,000 --> 00:39:55,000 And sure enough, amid the techno babble, 684 00:39:55,000 --> 00:39:58,000 at last he finds what he's looking for. 685 00:39:58,000 --> 00:40:04,000 This series of decaying impulses is the reverberation. 686 00:40:04,000 --> 00:40:05,000 Definitely the echo. 687 00:40:05,000 --> 00:40:07,000 Definitely the echo. 688 00:40:07,000 --> 00:40:08,000 With busted. 689 00:40:08,000 --> 00:40:10,000 Don't be so hasty. 690 00:40:10,000 --> 00:40:13,000 With busted, let's go home. See ya. 691 00:40:13,000 --> 00:40:16,000 They've conclusively shown that although a quack's echo 692 00:40:16,000 --> 00:40:21,000 might be quiet and tricky to hear, it does exist. 693 00:40:21,000 --> 00:40:25,000 So how does it feel to be riding the absolute crest 694 00:40:25,000 --> 00:40:28,000 of urban myth busting? 695 00:40:28,000 --> 00:40:29,000 Busterific. 696 00:40:29,000 --> 00:40:35,000 And for their contribution to modern science, 697 00:40:35,000 --> 00:40:38,000 Bob and Roy have earned a rent-free, 698 00:40:38,000 --> 00:40:40,000 Bayside home for life. 699 00:40:40,000 --> 00:40:42,000 Well, what do you think? 700 00:40:42,000 --> 00:40:43,000 Looks good? 701 00:40:43,000 --> 00:40:44,000 All right. 702 00:40:44,000 --> 00:40:48,000 Where were all those quacks when we needed them? 703 00:40:48,000 --> 00:40:50,000 Still to come. 704 00:40:50,000 --> 00:40:53,000 One last blast for the chicken guy. 705 00:40:53,000 --> 00:40:56,000 It's maker break time on Myth Busters. 706 00:40:56,000 --> 00:41:04,000 Three, two. 707 00:41:04,000 --> 00:41:07,000 You'll recall that while testing which chicken hits hardest, 708 00:41:07,000 --> 00:41:10,000 frozen or thawed, the guys discovered that their 709 00:41:10,000 --> 00:41:14,000 light airplane windshields were not rated for bird strikes. 710 00:41:14,000 --> 00:41:19,000 As a result, all their flying chickens smashed every windshield. 711 00:41:19,000 --> 00:41:22,000 This chicken went through it like butter. 712 00:41:22,000 --> 00:41:23,000 Whoa. 713 00:41:23,000 --> 00:41:27,000 So this is the experiment take two. 714 00:41:27,000 --> 00:41:30,000 To finally lay this myth to rest, they have 715 00:41:30,000 --> 00:41:32,000 rethought their methodology. 716 00:41:32,000 --> 00:41:34,000 No more windshields. 717 00:41:34,000 --> 00:41:37,000 This is purely a moment of impact test. 718 00:41:37,000 --> 00:41:41,000 The chickens will be fired at a solid steel plate. 719 00:41:41,000 --> 00:41:44,000 By using the high-speed camera to measure the time 720 00:41:44,000 --> 00:41:48,000 between the start and finish of impact, they hope to see 721 00:41:48,000 --> 00:41:56,000 a difference between frozen and thawed chickens. 722 00:41:56,000 --> 00:42:01,000 The three frozen chickens clock more than 140 miles an hour. 723 00:42:01,000 --> 00:42:05,000 The impact time, 7 1-thousandths of a second. 724 00:42:05,000 --> 00:42:08,000 It automatically deboned the chicken, didn't it? 725 00:42:08,000 --> 00:42:16,000 Three, two, one. 726 00:42:16,000 --> 00:42:19,000 Impact times for the three thawed chickens showed a perfect 727 00:42:19,000 --> 00:42:21,000 match with the frozen poultry. 728 00:42:21,000 --> 00:42:24,000 Seven one-thousandths of a second. 729 00:42:24,000 --> 00:42:26,000 Here we go. 730 00:42:26,000 --> 00:42:28,000 One point of impact. 731 00:42:28,000 --> 00:42:34,000 Two, three, four, five, six, seven. 732 00:42:34,000 --> 00:42:36,000 And then now it's starting to move back again. 733 00:42:36,000 --> 00:42:39,000 It's given all of its impact in that amount of time. 734 00:42:39,000 --> 00:42:42,000 The results from the high-speed camera seem to be 735 00:42:42,000 --> 00:42:44,000 fairly convincing. 736 00:42:44,000 --> 00:42:46,000 You know that adage that it's not the falling that kills you? 737 00:42:46,000 --> 00:42:48,000 It's the stopping. 738 00:42:48,000 --> 00:42:51,000 The stopping is where the force gets imparted. 739 00:42:51,000 --> 00:42:55,000 So both the frozen and the thawed chicken have the same mass. 740 00:42:55,000 --> 00:42:57,000 They have effectively the same speed. 741 00:42:57,000 --> 00:43:00,000 So the only difference between the two is going to be how much 742 00:43:00,000 --> 00:43:04,000 time they take to impart their energy to the plate. 743 00:43:04,000 --> 00:43:07,000 And on the high-speed camera we showed that each of them 744 00:43:07,000 --> 00:43:10,000 exerted all their energy in seven milliseconds. 745 00:43:10,000 --> 00:43:11,000 Almost exactly. 746 00:43:11,000 --> 00:43:13,000 Basically, there was no difference. 747 00:43:13,000 --> 00:43:15,000 So does that mean the myth is busted? 748 00:43:15,000 --> 00:43:18,000 At these speeds, frozen or thawed chicken myth busted 749 00:43:18,000 --> 00:43:20,000 no difference at all. 750 00:43:24,000 --> 00:43:28,000 Now that we're done testing, we get to have some fun. 751 00:43:28,000 --> 00:43:31,000 That'd be pumpkin chunking kind of fun. 752 00:43:31,000 --> 00:43:33,000 Dude, look at this. 753 00:43:33,000 --> 00:43:35,000 It's what you get when the pumpkin chunking champion buys 754 00:43:35,000 --> 00:43:37,000 your pumpkin for you. 755 00:43:37,000 --> 00:43:39,000 It's perfect. 756 00:43:40,000 --> 00:43:44,000 With the day almost done, what better way to finish 757 00:43:44,000 --> 00:43:48,000 than with a few pumpkin chunking rounds of their own? 758 00:43:51,000 --> 00:43:53,000 Was there anything in its way? 759 00:43:53,000 --> 00:43:56,000 I suspect that the pumpkin went through here. 760 00:43:59,000 --> 00:44:01,000 Oh, here we go. 761 00:44:02,000 --> 00:44:04,000 Jamie, can I ride it? 762 00:44:05,000 --> 00:44:08,000 Three, two, one. 763 00:44:09,000 --> 00:44:11,000 That was so cool. 764 00:44:11,000 --> 00:44:13,000 You feel a little tingle between your legs when that 765 00:44:13,000 --> 00:44:15,000 sucker went out. 766 00:44:15,000 --> 00:44:17,000 I do. 767 00:44:17,000 --> 00:44:19,000 It's going to be hard to top that. 768 00:44:19,000 --> 00:44:22,000 Ever wonder what would happen if the shark and the crocodile, 769 00:44:22,000 --> 00:44:25,000 two of the world's top predators, met? 770 00:44:25,000 --> 00:44:28,000 Witness a virtual battle between these two animals, 771 00:44:28,000 --> 00:44:30,000 used to being at the top of a food chain, 772 00:44:30,000 --> 00:44:32,000 on the world's third largest animal. 773 00:44:32,000 --> 00:44:34,000 The world's second largest animal, 774 00:44:34,000 --> 00:44:36,000 the crocodile. 775 00:44:36,000 --> 00:44:38,000 And that's what we're going to do. 776 00:44:38,000 --> 00:44:40,000 We're going to do a little test. 777 00:44:40,000 --> 00:44:42,000 We're going to do a little test. 778 00:44:42,000 --> 00:44:44,000 We're going to do a little test. 779 00:44:44,000 --> 00:44:46,000 We're going to do a little test. 780 00:44:46,000 --> 00:44:48,000 We're going to do a little test. 781 00:44:48,000 --> 00:44:51,000 On the world premiere of Animal Baseball.