WEBVTT 00:00:10.600 --> 00:00:14.256 -Well, there is a myth that says that if you're on a ship when it's sinking, 00:00:14.281 --> 00:00:16.081 it will suck you down with it 00:00:16.127 --> 00:00:18.821 -You're telling me that this thing, when it goes down, 00:00:18.835 --> 00:00:21.812 I'm going to go down with it because it's going to suck me down 00:00:21.881 --> 00:00:22.638 -Yeah 00:00:22.638 --> 00:00:26.011 -So, what are the prevealing theories behind the boat sucking me down? 00:00:26.011 --> 00:00:29.785 -Well, apparently there are three and the first one is that air 00:00:29.795 --> 00:00:33.213 that mixes in with the water as it rushes up from the boat 00:00:33.527 --> 00:00:36.621 makes the water less dense so it's like you're going to fall 00:00:36.637 --> 00:00:38.757 through the water quicker that way 00:00:38.907 --> 00:00:43.921 Uh, the second theory is that the cavities in the ship will create an area for 00:00:43.921 --> 00:00:47.686 the water ​to rush in and that'll pull you into the ship and then 00:00:47.686 --> 00:00:52.053 the third one is that the ship moving through the water rapidly towards 00:00:52.053 --> 00:00:56.548 the bottom will create a vortex above it kind of like drafting behind a truck when 00:00:56.548 --> 00:00:58.248 it's on a highway 00:00:58.330 --> 00:01:01.710 -You know, all these theories seem to me simple enough to actually test 00:01:01.710 --> 00:01:05.678 on the shop. I think I could build a small water rig with a bubbler and some weights 00:01:05.678 --> 00:01:10.048 some small boats and we could see all three these theories right by the shop 00:01:10.545 --> 00:01:14.207 -Yeah, but, you know, I still think that we need a real boat. 00:01:14.207 --> 00:01:17.087 People ain't going to get it unless we do it with a real boat 00:01:17.087 --> 00:01:18.217 (music) 00:01:18.402 --> 00:01:23.312 -Until they find a suitable boat, Adam sets out to test the vortex 00:01:23.312 --> 00:01:26.483 and bubble density theories on a small scale 00:01:26.483 --> 00:01:30.263 -Well, what I made is a miniature bubbling rig and we are trying to show whether 00:01:30.263 --> 00:01:34.213 or not the ship produces a lot of bubbles and the bubbles lower the density of water 00:01:34.213 --> 00:01:38.642 people sink whereas normally they'd float or whether it creates a vortex that 00:01:38.642 --> 00:01:40.383 pulls things in after it. 00:01:40.426 --> 00:01:44.856 This would be the Titanic, this is a lead weight, it's pretty darn heavy 00:01:44.955 --> 00:01:48.195 and let's say that is our person right there 00:01:48.195 --> 00:01:50.185 We are ready 00:01:55.275 --> 00:01:57.693 Squat, nothing 00:01:57.825 --> 00:02:04.135 -To make this work, Adam has to rethink his ratios of weight, density and buoyancy 00:02:04.485 --> 00:02:06.215 (music) 00:02:06.435 --> 00:02:10.435 -Adam is building a rig four feet square by ten feet high. 00:02:11.025 --> 00:02:15.975 They'll then attach an electric winch and guided wires to hold a special box 00:02:15.975 --> 00:02:19.315 that will simulate the action of a sinking boat 00:02:22.265 --> 00:02:26.607 -So right now I'm actually just finishing up the PVC matrix that will be 00:02:26.607 --> 00:02:34.238 our bubbler and hopefully it'll provide us with a really attractive stream of bubbles 00:02:34.861 --> 00:02:39.241 Then I'm going to make a panel for the top of this box which has a hole on it 00:02:39.241 --> 00:02:42.912 so that not only can we test what happens when you drop a weight in water but 00:02:42.912 --> 00:02:46.602 when you drop a weight with an air gap in it we can see what happens 00:02:46.641 --> 00:02:49.340 We are going to fill this with 25 pound barbell weights 00:02:49.340 --> 00:02:55.288 -Encinal High School in Alameda agrees to host a Mythbusters midsize experiment 00:02:56.290 --> 00:03:01.223 The school's diving pool at 12 feet deep is ideal for the new rig 00:03:01.223 --> 00:03:03.009 -Oh, it's a beautiful story 00:03:03.009 --> 00:03:08.093 -The plan is to see what specific forces are in play when a ship sinks 00:03:09.613 --> 00:03:12.714 -At this point I really don't know what is gonna happen with this 00:03:12.714 --> 00:03:18.557 You know, my impression is that if you're floating above a boat as it's going down, 00:03:18.557 --> 00:03:20.402 it's not really going to pull you down 00:03:20.402 --> 00:03:24.972 -Jamie's pessimistic about the vortex theory but he's open to the bubbles 00:03:24.972 --> 00:03:28.472 creating lower density. -I don't know if it's going to blow you up 00:03:28.472 --> 00:03:32.472 because of all the bubbles going up or whether the bubbles will make the water 00:03:32.472 --> 00:03:37.362 in that area less dense will make you go down. It'll be interesting to see 00:03:39.058 --> 00:03:40.838 This is lead shot 00:03:40.838 --> 00:03:45.498 -Water densitity is the key so they've made a hydrometer, a simple 00:03:45.498 --> 00:03:50.501 flotation device that measures the specific gravity or density of a liquid 00:03:50.651 --> 00:03:55.588 -We'll see how much the density of the water changes by how far this goes up 00:03:55.588 --> 00:04:00.158 and down when the water's aerated. That's perfect 00:04:00.978 --> 00:04:06.208 -Experiment one: the bubble test -A compressor will supply air 00:04:06.208 --> 00:04:10.788 to Adam's PVC bubble matrix. - Okay, I'm going. 00:04:10.788 --> 00:04:14.988 -Alright, I'm going to watch it Oh, that looks cool from here 00:04:15.914 --> 00:04:18.744 (laughter) 00:04:20.559 --> 00:04:24.559 -It looks like it's going down, yes -Oh, way down 00:04:24.923 --> 00:04:30.443 -Okay, is out of the... looks like someone is gonna have to get their swim trunks on 00:04:30.684 --> 00:04:35.784 -And that's all the encouragement Adam needed on a warm California day 00:04:35.784 --> 00:04:37.980 -Can we blur out the love handles? -No! 00:04:37.980 --> 00:04:41.784 -Be nice to me alright -Happy with the bubble effect, 00:04:41.784 --> 00:04:46.510 their first weight test should determine if volume makes it easier to be dragged 00:04:46.510 --> 00:04:48.191 down 00:04:48.206 --> 00:04:53.014 So to get a closer simulation of a sinking boat the box is positioned on 00:04:53.014 --> 00:04:58.324 the surface and loaded with 200 pounds. They hope the inrush of water 00:04:58.324 --> 00:05:02.044 to the empty box will drive the vortex effect 00:05:04.164 --> 00:05:06.584 -Good, go! 00:05:13.333 --> 00:05:14.913 -Wow 00:05:14.913 --> 00:05:17.894 -I pulled it down -That was intense 00:05:18.223 --> 00:05:21.575 I didn't realize the result would be so marked 00:05:21.575 --> 00:05:25.235 When I'm in the water as the weight releases I can definitely feel it pushing 00:05:25.235 --> 00:05:29.265 this cushion of water out around it as it's plummeting and I'll tell you 00:05:29.265 --> 00:05:32.845 straight up based in what I see here you'll definitely get sucked down 00:05:32.845 --> 00:05:37.105 and I think the bigger the object, the bigger the suck 00:05:37.430 --> 00:05:40.354 -They increased the box weight to 300 pounds. 00:05:40.354 --> 00:05:43.970 -Alright, hydrometer is ready -Okay, going 00:05:43.970 --> 00:05:44.870 -Go 00:05:51.461 --> 00:05:54.301 -Nice sound -Yeah! 00:05:54.910 --> 00:05:57.350 -Where's the hydrometer? (laughter) 00:05:57.350 --> 00:05:59.707 -There it is! (laughter) 00:06:01.679 --> 00:06:05.049 -That pretty much says it -Wow! I mean it went all the way 00:06:05.049 --> 00:06:07.299 to the bottom and hanged up there for a while 00:06:07.299 --> 00:06:11.849 -Once again, the box filled rapidly, drop like a stone and pulled 00:06:11.849 --> 00:06:13.767 the hydrometer down entirely 00:06:13.767 --> 00:06:19.217 -Hold on, hold on -Now it's Adam's turn to ride the vortex 00:06:26.534 --> 00:06:32.675 -Okay, auch first of all, second of all you can feel youself in the vortex 00:06:32.675 --> 00:06:36.675 as you're going down, I mean I didn't separate from the box at all, 00:06:37.264 --> 00:06:41.544 my buoyancy had no bearing on the matter I just sunk right with it until 00:06:41.544 --> 00:06:44.292 I hit the bottom. That was intense! 00:06:44.761 --> 00:06:49.022 -The pool testing is done and Adam's up for the real thing 00:06:49.312 --> 00:06:51.342 (music) 00:06:52.128 --> 00:06:56.449 Meanwhile the search for the ideal sinkable boat begins among 00:06:56.449 --> 00:07:00.449 the Marina's of embarcadero cove in Oakland, California 00:07:00.887 --> 00:07:05.817 This hunt won't be easy, the boat they need must sink effortlessly 00:07:06.276 --> 00:07:09.166 Any vessel too buoyant will be a problem 00:07:09.713 --> 00:07:14.613 -Boat was a piece of junk which doesn't make me feel too bad about sinking it 00:07:14.978 --> 00:07:18.773 For a boat this size it's actually got a fair amount of volume 00:07:18.773 --> 00:07:22.546 which it's what we need. It'd be a perfect boat for us except for the fact 00:07:22.546 --> 00:07:25.384 it's wood and I don't think is going to go down too quick 00:07:25.384 --> 00:07:30.094 because wood tipically floats. We are looking for the largest boat 00:07:30.094 --> 00:07:35.244 that we can afford to sink quickly and that by my mind would have to be 00:07:35.244 --> 00:07:36.716 a steel boat 00:07:36.818 --> 00:07:42.668 -A heavy steel tugboat catches their eye but it quickly becomes obvious that this 00:07:42.668 --> 00:07:47.138 old hulk is way beyond their needs. -I think this boat is so perfect for our 00:07:47.138 --> 00:07:50.178 Titanic rig that it'd make me cry if we were able to get it 00:07:50.432 --> 00:07:54.132 It does however look like quite a deal to make it go 00:07:55.102 --> 00:08:00.032 -Two boats have already been rejected as unsuitable but after some 00:08:00.032 --> 00:08:04.032 good detective work they find a very likely candidate. 00:08:04.032 --> 00:08:08.710 Another old tug but at nine tons this one is more suitable 00:08:08.948 --> 00:08:14.924 Adam won't be using a scuba so in case of emergency he has to learn to breath 00:08:14.924 --> 00:08:18.564 from another diver's regulator. -I've been waiting half my life to see 00:08:18.564 --> 00:08:22.564 what it feels like to breath underwater and that's like really cool so 00:08:22.564 --> 00:08:26.244 I'm dying to be on that boat when it goes down like I'm psyched to done that 00:08:26.244 --> 00:08:28.174 like I can't wait. 00:08:29.739 --> 00:08:34.639 -It's test day and Adam is excited enough to be up before dawn. 00:08:35.650 --> 00:08:38.670 -Good morning, good morning (laughts) 00:08:38.670 --> 00:08:42.220 Well everyone else crapped out I think we're the only one who's taking 00:08:42.220 --> 00:08:47.500 the journey across the bay to deliver our little tugboat right here. 00:08:48.817 --> 00:08:53.014 It's really nice to be on the bay at dawn as the sun comes up, it's quite beautiful 00:08:53.416 --> 00:08:58.096 uh, and our little tug, Mythtanic, it's handling the trip just fine 00:08:58.366 --> 00:09:00.217 should be ready to sink 00:09:01.153 --> 00:09:05.693 -Across the bay, the San Francisco drydock workers are preparing for this 00:09:05.693 --> 00:09:07.566 unusual event. 00:09:07.566 --> 00:09:11.306 Their skill will help sink the boat and recover it. 00:09:11.566 --> 00:09:13.527 - All my life my dad used to tell me that 00:09:13.527 --> 00:09:16.094 if a boat sinks you have to swim away as quick you can 00:09:16.094 --> 00:09:17.867 because you'll be sucked down with it 00:09:17.867 --> 00:09:23.027 -The tugboat captain, Greg Urban, knows this chilly mirky waters and the dangers 00:09:23.027 --> 00:09:23.742 they hold 00:09:23.742 --> 00:09:25.719 -I'm very interested in seen what happens 00:09:25.719 --> 00:09:27.717 I'm glad it's you that's gonna be standing 00:09:27.717 --> 00:09:28.717 on deck and not me so NOTE Paragraph 00:09:28.717 --> 00:09:30.803 I think you're gonna get suck down with it 00:09:30.803 --> 00:09:34.773 -Despite the predictions, Jamie's still looking on the bright side. 00:09:34.989 --> 00:09:39.399 -Well, you know it's a little brisk this morning but at least is warmer 00:09:39.399 --> 00:09:42.070 in the water perhaps. (laughter) 00:09:42.070 --> 00:09:44.178 -Somehow I don't think so 00:09:44.178 --> 00:09:48.676 -With all his underwater expertise, Jamie knows this is risky. 00:09:48.765 --> 00:09:54.765 He's enlisted a dive buddy, Shawn Willis, a professional with 13 years experience 00:09:54.775 --> 00:09:59.115 -Tough to estimate what the visibility will be like, sometimes currents make it 00:09:59.115 --> 00:10:03.245 better with the silty bottom often currents can stir up a little bit worse 00:10:03.245 --> 00:10:06.275 so it makes things a little harder, a little bit more dangerous, 00:10:06.275 --> 00:10:09.715 a little bit more complicated. (music) 00:10:10.435 --> 00:10:14.435 -The tug toes the Mythtanic out to the end of the drydock. 00:10:14.470 --> 00:10:18.950 To make salvage as easy as possible, it'll be sunk right under the shadow 00:10:18.950 --> 00:10:20.720 of the big crane. 00:10:21.699 --> 00:10:23.779 -Swing it out, swing it out. 00:10:24.656 --> 00:10:26.476 Swing it out some more. 00:10:27.778 --> 00:10:30.658 -The boat is going to sink, we are going to find it. 00:10:30.658 --> 00:10:34.188 We are going to hook the cables up to it. We are going to bring it back up. 00:10:34.188 --> 00:10:37.818 And we are going to do it again until we get too cold or too tired to do it. 00:10:38.205 --> 00:10:41.785 -Hey Adam, just letting you know, we've got fivety feet underneath your boat 00:10:41.785 --> 00:10:45.305 right now, fivety feet of water. Very cold water. 00:10:48.062 --> 00:10:51.032 -The biggest fear that I've got is Adam's safety, you know? 00:10:51.032 --> 00:10:53.862 We don't really know what is going to happen with this boat. 00:10:54.476 --> 00:10:59.616 Water is murky, it's cold, it's deep. This is a dangerous stunt that we're doing 00:11:00.170 --> 00:11:03.690 And I guess Adam's life is in my hands. 00:11:07.506 --> 00:11:11.506 -Adam doesn't wait around as the sea instantly gushes in. 00:11:11.591 --> 00:11:14.061 -You're only opening one valve, one valve. 00:11:14.735 --> 00:11:18.085 -We've got fivety of water in here right now. 00:11:20.481 --> 00:11:24.591 -The main job now is keeping the sinking ship in reach of the crane. 00:11:24.591 --> 00:11:27.255 -We are now above of you guys so hold on. 00:11:29.451 --> 00:11:33.451 -The tug gives the Mythtanic a gentle nudge into position. 00:11:33.968 --> 00:11:37.968 -Two feet, two feet away. Alright you bump it. 00:11:40.503 --> 00:11:44.323 Alright it's... it's going down bro, it's going down. 00:11:45.642 --> 00:11:51.632 -Surprised by the sea's rapid inflow, Adam bails out early and misses his chance 00:11:53.484 --> 00:11:56.796 Time to reflect and rethink the strategy. 00:11:56.886 --> 00:11:57.694 (Music) 00:11:57.794 --> 00:11:59.647 -Well, we pretty much know where it is. 00:11:59.647 --> 00:12:01.595 (Laughter) 00:12:02.274 --> 00:12:04.876 -The speed of the sunk was just like "woosh" 00:12:04.876 --> 00:12:09.024 I mean, my job, I know, was to stay with the boat and feel the suction. 00:12:09.024 --> 00:12:12.802 But I swear to God, standing on there, my body just goes "Move that way!". 00:12:12.802 --> 00:12:13.764 (Laughs) 00:12:13.764 --> 00:12:15.218 Not that way! 00:12:15.218 --> 00:12:18.418 Survival kicked in a critical moment. 00:12:21.030 --> 00:12:26.730 -Jamie and Shawn work fourty feet down, in the dark for thirty minutes to reattach 00:12:26.730 --> 00:12:28.528 the salvage lines. 00:12:28.528 --> 00:12:32.180 Question is: Are they gain for take two? 00:12:32.180 --> 00:12:35.830 -Are you insinuating that I might not have the "cojones" to follow through... 00:12:35.830 --> 00:12:39.680 -I know you got the "cojones" to do it. I'm only saying... 00:12:39.680 --> 00:12:41.476 -Then what was the question? -Alright! 00:12:41.476 --> 00:12:44.021 - I don't... I don't really want to, uh... 00:12:44.021 --> 00:12:47.648 I don't think that we are going to see anything different that we already saw 00:12:47.648 --> 00:12:51.308 with that boat. You know? For us to get in that sweet spot might take us 00:12:51.308 --> 00:12:55.318 a half of a dozen tries and all that represents to me as a lot of work. 00:12:55.318 --> 00:13:01.358 But if you want to do it again I just, you know, it was hard. 00:13:01.358 --> 00:13:02.430 -Yeah. 00:13:02.558 --> 00:13:05.781 -It's a difficult decision to scuttle the boat again. 00:13:05.781 --> 00:13:09.851 But they need a result. They resolved to do it with the cables 00:13:09.851 --> 00:13:11.772 in place, but slackened. 00:13:11.772 --> 00:13:15.592 -We've seen what the boat does, it's nothing that scary, um... 00:13:15.592 --> 00:13:19.442 I feel pretty good about lowering it on with the cables still attached this time, 00:13:19.442 --> 00:13:22.322 because they're so heavy they're just go down into the water. 00:13:22.950 --> 00:13:25.108 -Ok, hold on to that back there. 00:13:25.108 --> 00:13:29.944 -This will be their last attempt to tackle the old Titanic myth. 00:13:31.049 --> 00:13:34.459 Would someone in the water be pull down with the ship? 00:13:34.459 --> 00:13:38.078 -You guys watch out for the cables. Don't get tangled up on the cable. 00:13:38.470 --> 00:13:40.010 Be careful! 00:13:44.417 --> 00:13:48.417 Stay with it, stay there, stay with it. There you go. 00:13:50.738 --> 00:13:51.528 -Nope 00:13:51.528 --> 00:13:54.458 -Did it suck you down in? (Laughter) 00:13:55.738 --> 00:13:58.413 -I didn't see nobody get sucked in. (Laughs) 00:14:01.371 --> 00:14:04.121 -No suction. -No suction at all, I mean. 00:14:04.648 --> 00:14:08.648 I could not have been more central to the boat when it went down. 00:14:08.671 --> 00:14:13.501 I sat on it, the entire boat just dropped underneath me and... 00:14:13.578 --> 00:14:16.688 I hit the water, my neck hit the water and I never went any lower. 00:14:16.688 --> 00:14:19.126 -And what did I say? -Heck, once again, Hyneman, 00:14:19.126 --> 00:14:22.986 you were absolutely right about how the boat sank, so uh... 00:14:22.986 --> 00:14:26.489 I say let's get this puppy back up and call it a day, I need a drink. 00:14:26.489 --> 00:14:27.599 (Laughter) 00:14:29.120 --> 00:14:34.175 -So, no vortex with the Mythtanic but how do they explain the drammatic test 00:14:34.175 --> 00:14:35.995 in the swimming pool? 00:14:36.203 --> 00:14:42.463 -In our test we used, like, three hundred pounds and it went down really quickly. 00:14:42.923 --> 00:14:46.223 A boat is not build like that. It's a lot larger surface area. 00:14:46.223 --> 00:14:47.693 It didn't go down that fast. 00:14:47.693 --> 00:14:50.697 -We know Jamie, I'm going to go out on the limb here and say.... 00:14:50.697 --> 00:14:53.401 There is no effect, that myth is busted. 00:14:53.401 --> 00:14:56.707 -Yeah, I agree, you know. I was right there too, I didn't feel it, 00:14:56.707 --> 00:15:00.812 I didn't see it, uh, didn't happen. -You know and with all the rigging 00:15:00.812 --> 00:15:04.243 and stuff that are on a normal ship, there are some very good reasons 00:15:04.243 --> 00:15:06.391 to swim away from a boat that it's going down. 00:15:06.391 --> 00:15:09.005 It could pull you down, you get caught in the rigging... 00:15:09.005 --> 00:15:12.456 But none of them involve suction and I know our boat wasn't as big as one 00:15:12.456 --> 00:15:16.167 of these but with a nine ton boat I think you would have felt something. 00:15:16.167 --> 00:15:17.006 - I agree. 00:15:18.513 --> 00:15:19.866 Busted 00:15:23.020 --> 00:15:25.080 Goldfish memory 00:15:25.150 --> 00:15:27.870 -This myth is a pretty laid back one, huh, Jamie? 00:15:27.870 --> 00:15:32.300 -Yeah, the myth says that you can put a goldfish in a small bowl and 00:15:32.300 --> 00:15:36.300 they are okay with it because they are so stupid that by the time 00:15:36.300 --> 00:15:39.797 they make it around the bowl, in like about three seconds, 00:15:39.797 --> 00:15:41.448 they just forgot where they were. 00:15:41.448 --> 00:15:44.685 -So what we want to really test here is what is the memory span 00:15:44.685 --> 00:15:45.911 of the averag​e goldfish. 00:15:45.911 --> 00:15:51.259 -What I though we'd do is build a maze and the goldfish will have to be taugh 00:15:51.259 --> 00:15:54.329 how to make it through the maze, and if they can remember that... 00:15:54.477 --> 00:15:56.967 We'll know a little bit more of how smart they are. 00:15:56.967 --> 00:16:00.109 -So what you are talking about is not a goldfish intelligence test 00:16:00.109 --> 00:16:03.126 but a Mythbusters intelligence test as well. 00:16:03.126 --> 00:16:05.086 -You can look at it that way. 00:16:05.211 --> 00:16:07.533 -One that I think I will win. 00:16:07.533 --> 00:16:11.583 -So, the guys want to train goldfish to swim through a maze. 00:16:11.603 --> 00:16:15.175 -Have you heard of the myth that goldfish only have three seconds of memory? 00:16:15.175 --> 00:16:20.175 -Yes, I have. Their brains are pretty small and it's about two percent 00:16:20.175 --> 00:16:22.331 of their body weight so you can figure that... 00:16:22.331 --> 00:16:24.338 they're not going to have much of a memory. 00:16:24.338 --> 00:16:28.411 -Steve, the pet shop guy, has all the fish and all the accesories 00:16:28.411 --> 00:16:31.519 that Mythbus​ters need. -I think this is definitely the one for me 00:16:31.519 --> 00:16:33.673 Jamie, it's the deepsea diver with the shark. 00:16:33.905 --> 00:16:35.425 -This is a thirty eight gallon. 00:16:35.425 --> 00:16:38.231 I have the best food for godlfish. 00:16:38.231 --> 00:16:40.637 You make sure you have a good water conditioner. 00:16:40.705 --> 00:16:43.269 -Those are perfect. What do we need? Ten of those? 00:16:43.269 --> 00:16:45.228 -Yeah, five. -Five in each tank? 00:16:45.228 --> 00:16:46.068 -Yeah -Okay. 00:16:46.068 --> 00:16:53.160 -It's the easiest sale Steve's ever made. Two tanks, ten fish and enough supplies 00:16:53.160 --> 00:16:54.866 to feed a whale. 00:16:55.576 --> 00:16:57.016 (Music) 00:16:57.159 --> 00:17:02.299 Jamie and Adam have given themselves forty five days to train their fish and 00:17:02.299 --> 00:17:05.661 bust the myth. They've each got a tank and each 00:17:05.661 --> 00:17:10.300 will devise their own training method. The competition is heating up. 00:17:10.569 --> 00:17:17.569 -I think that I shall be the best trainer. Purely because of the fact that uh... 00:17:18.068 --> 00:17:21.648 training animals requires above all consistency. 00:17:22.655 --> 00:17:25.016 Adam is not a very consistent person. 00:17:25.212 --> 00:17:26.743 (Laughs) 00:17:27.604 --> 00:17:33.464 -Turns out Jamie has another advange. He used to own a pet shop and he knows 00:17:33.464 --> 00:17:34.224 his fish. 00:17:34.224 --> 00:17:38.039 -In addition to his time in the special forces and being the international whisks 00:17:38.039 --> 00:17:41.573 champion and even being a lion owner, Jamie's probably one of only handful 00:17:41.573 --> 00:17:44.809 people in the world who's actually trained a goldfish to ring a bell. 00:17:44.809 --> 00:17:49.334 I don't have anything like that kind of pedigree with goldfish training regiments. 00:17:50.087 --> 00:17:51.581 Oh, look at that! 00:17:51.581 --> 00:17:54.891 -I think I'm in fact just going to leave mine totally uncovered. 00:17:57.022 --> 00:17:58.739 -Our win. 00:17:59.672 --> 00:18:01.802 -I'm going to kick your goldfish ass. 00:18:01.832 --> 00:18:02.882 (Laughs) 00:18:03.355 --> 00:18:06.669 -Nearly six weeks since the goldfish challenge began. 00:18:07.206 --> 00:18:10.948 Today all their hard work will be put to the test. 00:18:11.008 --> 00:18:11.792 -Alright. 00:18:11.792 --> 00:18:14.668 -Oh look, they see the orange thing. They want to go for it. 00:18:15.396 --> 00:18:18.436 -Jamie appears to have science on his side. 00:18:18.531 --> 00:18:22.531 Studies have shown that goldfish repeatedly respond to colour 00:18:22.589 --> 00:18:23.989 for food rewards. 00:18:24.727 --> 00:18:29.349 -Time is starting now. -They're off and racing. 00:18:29.502 --> 00:18:32.672 -Hey guys! Here's your food. 00:18:33.082 --> 00:18:35.553 -Come on boys, there you go. 00:18:35.678 --> 00:18:36.638 (Music) 00:18:36.864 --> 00:18:39.711 - Jamie's school has learned its lessons well. 00:18:39.804 --> 00:18:40.764 (Music) 00:18:41.435 --> 00:18:44.675 But Adam's guys... must have been playing hockey. 00:18:44.675 --> 00:18:46.935 -I think it's quite obvious what's happening... 00:18:47.272 --> 00:18:48.782 Or not happening. 00:18:49.096 --> 00:18:52.836 They seem to be fascinated with their reflection on the other end of the tank. 00:18:53.133 --> 00:18:54.283 (Laughs) 00:18:54.687 --> 00:18:58.897 - Jamie's crew is halfway through and going swimmingly. 00:18:59.131 --> 00:19:00.695 - You know you want it. 00:19:01.160 --> 00:19:04.527 Look at them. They are frantic to go through there. 00:19:04.858 --> 00:19:07.308 -Maybe I should give them a compass. 00:19:07.522 --> 00:19:08.552 (Music) 00:19:08.764 --> 00:19:11.248 -Oh -Who's to say that luck doesn't play 00:19:11.248 --> 00:19:16.428 a part in these things. They're through the first barrier, but not for long. 00:19:16.428 --> 00:19:18.308 -Oh, no no not back. 00:19:19.160 --> 00:19:24.220 -There is no backtracking in Jamie's tank. The first fish is through. 00:19:24.331 --> 00:19:25.216 -One minute. 00:19:25.710 --> 00:19:30.021 -The rest of the gang isn't far behind, except one. 00:19:30.021 --> 00:19:34.021 -Interesting to note there is one fish that is the stupidest one. 00:19:34.174 --> 00:19:38.700 There is a little red head in back and, uh he is the skinniest. 00:19:38.730 --> 00:19:39.585 (Laughs) 00:19:40.381 --> 00:19:43.301 -Adam apparently has two skinny fish. 00:19:44.152 --> 00:19:48.032 -I don't understand the total ignorance of this panel. 00:19:48.032 --> 00:19:50.481 It's like this wall doesn't even exist for him. 00:19:50.481 --> 00:19:54.649 -I would say that without a doubt, one minute to make it through the maze 00:19:54.649 --> 00:19:56.508 is a lot quicker than random. 00:19:56.648 --> 00:19:57.937 (Music) 00:19:58.206 --> 00:20:00.223 -And for Adam's fish? 00:20:00.719 --> 00:20:01.979 -Nine minutes. 00:20:02.687 --> 00:20:08.437 -Day fourty three of the goldfish memory test and Adam's still behind. 00:20:08.524 --> 00:20:11.297 -Listen, I don't have any work to do on this experiment. 00:20:11.297 --> 00:20:14.259 These fish have a lot of work to do. (Laughs) 00:20:14.259 --> 00:20:18.259 I'm just giving them the framework with which to prove themselves. 00:20:18.505 --> 00:20:20.455 For all goldfish kind. 00:20:20.536 --> 00:20:23.596 -Adam just got stupid fish. What are you going to do? 00:20:24.082 --> 00:20:25.723 -Alright boys, are you ready? 00:20:25.780 --> 00:20:26.780 (Adam whistles) 00:20:28.878 --> 00:20:30.188 (Music) 00:20:31.713 --> 00:20:35.713 -Meanwhile, Jamie's A students are lining up at the gate. 00:20:36.496 --> 00:20:38.816 -They're looking perky this morning. 00:20:39.068 --> 00:20:40.657 He's going for it. 00:20:41.342 --> 00:20:43.172 -The starting gun has sounded. 00:20:43.172 --> 00:20:46.390 Jamie's looking to go under sixty seconds. 00:20:48.621 --> 00:20:55.501 -Oh, oh, oh yay. That was, let's see... twenty five seconds. It's a record! 00:20:57.472 --> 00:21:01.613 They were like definitely "Boof". Way to go guys. 00:21:02.438 --> 00:21:05.220 -Mine are eating their own poo. (Jamie laughs) 00:21:06.794 --> 00:21:08.693 -Well, they seem healthy for all that. 00:21:08.693 --> 00:21:12.952 -I know everybody's going to take me to tasks for wasting these fish's time. 00:21:12.952 --> 00:21:15.432 Hey! They're both on the second chamber. 00:21:15.911 --> 00:21:17.261 Oh! They go back! 00:21:17.261 --> 00:21:18.893 (Laughter) 00:21:19.494 --> 00:21:25.074 -Can they remember for three seconds? I'd bager you bet and a lot more. 00:21:26.401 --> 00:21:29.691 -George Barlow, from the University of California Berkeley, 00:21:29.691 --> 00:21:34.849 is a professor of integrated biology and a big fan of goldfish.. 00:21:34.849 --> 00:21:38.699 -I guess there's some debate about this. Does condition behavior actually quallify 00:21:38.699 --> 00:21:43.049 as memory? -Sure. Any task that you can, in quotes, 00:21:43.049 --> 00:21:49.097 teach to an animal and then retest later. You have a very objective way of 00:21:49.097 --> 00:21:51.489 evaluating whether it remembered it. 00:21:51.489 --> 00:21:56.209 From what you've told me I would say, yeah you have blown away the myth that 00:21:56.209 --> 00:21:58.944 they can only remember for three seconds. 00:21:58.944 --> 00:22:02.301 -And one of the purported reasons behind the myth is so that people 00:22:02.301 --> 00:22:06.001 who keep godlfish in small bowls don't feel so bad, 00:22:06.001 --> 00:22:09.603 Do you think that it's actually cruel to keep goldfish in a bowl like that? 00:22:10.392 --> 00:22:12.331 -Well, we'll never know. 00:22:12.331 --> 00:22:15.816 Adolf Hitler thought it was cruel to keep goldfish in a bowl because 00:22:15.816 --> 00:22:20.696 there was no corner for them in which to hide and had a law made prohibiting 00:22:21.196 --> 00:22:24.226 the use of bowls for goldfish. 00:22:24.623 --> 00:22:30.853 But I think in general just an awful lot of fish kept in aquaria are bored. 00:22:31.198 --> 00:22:32.518 (Music) 00:22:32.858 --> 00:22:34.269 -Okay guys... 00:22:36.209 --> 00:22:38.569 I got awake this morning. 00:22:38.984 --> 00:22:43.074 -Jamie is confident his fish are drawing on all their memory cells. 00:22:43.345 --> 00:22:46.585 It's the final day. Day fourty five. 00:22:46.742 --> 00:22:49.232 Will they find their food faster? 00:22:49.336 --> 00:22:51.744 -Okay, let's go. -Alright, timer's starting. 00:22:53.544 --> 00:22:56.334 -There we go. We're going through one. 00:22:57.674 --> 00:22:59.084 Now go back through. 00:22:59.621 --> 00:23:01.061 (Music) 00:23:02.289 --> 00:23:05.049 Oh, they're looking like they're going to do it... 00:23:05.049 --> 00:23:08.284 -Twenty seconds. -Oh they've lost the record. 00:23:09.905 --> 00:23:11.415 -Twenty five seconds. 00:23:12.082 --> 00:23:14.705 -There we go. Almost. 00:23:14.748 --> 00:23:17.848 -Thirty five seconds. Come on handsome. 00:23:18.355 --> 00:23:19.715 There it comes. 00:23:20.739 --> 00:23:21.917 -There we go. 00:23:22.244 --> 00:23:24.654 -Not bad at all. Fourty seconds. -Fourty seconds. 00:23:25.154 --> 00:23:29.374 I think that judging by what I'm seeing that that's probably the threshold, 00:23:29.653 --> 00:23:32.003 plus or minus thirty seconds to get through. 00:23:32.003 --> 00:23:35.623 And and thirty seconds is pretty good to make it through four holes. 00:23:35.623 --> 00:23:40.143 It's clear that they have learned and it's clear that they do in fact have a memory 00:23:40.143 --> 00:23:42.110 longer than three seconds. 00:23:42.123 --> 00:23:45.958 -Absolutely. I...I mean, I'm impressed how fast that is you know my fish 00:23:45.958 --> 00:23:50.602 on average sort of randomly take between like three and twenty minutes... 00:23:51.219 --> 00:23:53.896 To get to their food. I mean, you guys definitely know 00:23:53.896 --> 00:23:55.216 what's going on. 00:23:55.573 --> 00:23:57.221 Myth busted. 00:23:57.586 --> 00:23:58.713 (Laughter) 00:23:59.014 --> 00:24:00.804 -Thanks Adam. (Adam laughs) 00:24:01.037 --> 00:24:03.297 -Alright. Good night fish. 00:24:05.434 --> 00:24:08.043 -See, is that kind of behavior that screwed him up.