1 00:00:00,000 --> 00:00:04,300 On this extra special episode of Mythbusters, 2 00:00:04,300 --> 00:00:08,000 I expect you guys to get to the bottom of this once and for all and then report back to me. 3 00:00:08,000 --> 00:00:08,500 We're on it. 4 00:00:08,500 --> 00:00:15,000 At the President's request, Adam and Jamie breathe new light into the myth of Archimedes' solar ray. 5 00:00:15,000 --> 00:00:18,000 That's it. That's what I'm talking about. That's perfect. 6 00:00:18,000 --> 00:00:21,500 Finding out if supersizing their mirror military... 7 00:00:21,500 --> 00:00:23,500 Do you want to save your own city? 8 00:00:25,500 --> 00:00:29,000 Can catch the sun's rays and set a boat ablaze. 9 00:00:29,000 --> 00:00:33,000 If mirrors are really intense, that's a spirit solution. 10 00:00:35,000 --> 00:00:37,000 Meanwhile, Kari Torian Grant... 11 00:00:37,000 --> 00:00:39,000 Red bean, stop! 12 00:00:39,000 --> 00:00:41,000 Take on a fiendish, filmic flip. 13 00:00:42,000 --> 00:00:45,000 Investigating if a superhuman punch... 14 00:00:45,000 --> 00:00:46,000 Trigger away! 15 00:00:46,000 --> 00:00:50,000 Can make an SUV's somersault head over wheels. 16 00:00:50,000 --> 00:00:52,000 There's so much that can go wrong on this. 17 00:00:55,000 --> 00:00:57,000 Who are the Mythbusters? 18 00:00:58,000 --> 00:00:59,000 Adam Savage... 19 00:00:59,000 --> 00:01:01,000 It's so different! 20 00:01:01,000 --> 00:01:02,000 And Jamie Heineman... 21 00:01:02,000 --> 00:01:04,000 Is that hot enough for ya? 22 00:01:04,000 --> 00:01:08,000 Between them more than 30 years of special effects experience... 23 00:01:08,000 --> 00:01:10,000 Joining them... 24 00:01:10,000 --> 00:01:12,000 Grant Imahara... 25 00:01:12,000 --> 00:01:13,000 He's alive! 26 00:01:13,000 --> 00:01:14,000 Kari Byron... 27 00:01:14,000 --> 00:01:17,000 I was less excited after my first kiss. 28 00:01:17,000 --> 00:01:18,000 And Tori Belichi... 29 00:01:18,000 --> 00:01:20,000 This is real science. 30 00:01:20,000 --> 00:01:22,000 They don't just tell the myth. 31 00:01:22,000 --> 00:01:24,000 They put them to the test. 32 00:01:27,000 --> 00:01:29,000 The Mythbusters 33 00:01:35,000 --> 00:01:38,000 First up, the Mythbusters have a viewer request... 34 00:01:38,000 --> 00:01:40,000 Straight from the top. 35 00:01:40,000 --> 00:01:42,000 You know, some viewers may be watching us and thinking, 36 00:01:42,000 --> 00:01:43,000 Huh? 37 00:01:43,000 --> 00:01:46,000 The boys are standing on a very accurate set of the White House Library. 38 00:01:46,000 --> 00:01:47,000 But they'd be wrong. 39 00:01:47,000 --> 00:01:49,000 Indeed, they would be. 40 00:01:49,000 --> 00:01:51,000 Because this is not a set. 41 00:01:51,000 --> 00:01:52,000 This is the real deal. 42 00:01:52,000 --> 00:01:54,000 Because on today's special episode of Mythbusters, 43 00:01:54,000 --> 00:01:55,000 the myth we're busting... 44 00:01:55,000 --> 00:01:58,000 Comes courtesy of a very special guest. 45 00:01:58,000 --> 00:01:59,000 In fact, here he is. 46 00:01:59,000 --> 00:02:00,000 Hey guys. 47 00:02:00,000 --> 00:02:01,000 How are you? 48 00:02:01,000 --> 00:02:02,000 Very good. 49 00:02:02,000 --> 00:02:03,000 Good to see ya. 50 00:02:03,000 --> 00:02:04,000 Welcome to the White House. 51 00:02:04,000 --> 00:02:05,000 Thank you, Mr. President. 52 00:02:05,000 --> 00:02:07,000 It is a thrill to have you here. 53 00:02:07,000 --> 00:02:08,000 So what can we do for you? 54 00:02:08,000 --> 00:02:11,000 Well, I am a big fan of Mythbusters. 55 00:02:11,000 --> 00:02:12,000 Really? 56 00:02:12,000 --> 00:02:13,000 I am and so are the girls. 57 00:02:13,000 --> 00:02:17,000 Partly because we are just fascinated by science. 58 00:02:17,000 --> 00:02:19,000 You guys make it fun and exciting and interesting. 59 00:02:19,000 --> 00:02:21,000 And occasionally you blow things up. 60 00:02:21,000 --> 00:02:23,000 Which is always cool. 61 00:02:23,000 --> 00:02:26,000 But I have a personal interest in this as president. 62 00:02:26,000 --> 00:02:29,000 Because nothing's more important to our country's future 63 00:02:29,000 --> 00:02:32,000 than getting young people engaged in math and science. 64 00:02:32,000 --> 00:02:34,000 A lot of the challenges that we face as a country 65 00:02:34,000 --> 00:02:37,000 are going to depend on how engaged young people are in science. 66 00:02:37,000 --> 00:02:40,000 And so I'm just thrilled that you guys do such a great job making it fun. 67 00:02:40,000 --> 00:02:41,000 Thank you, sir. 68 00:02:41,000 --> 00:02:42,000 That means a great deal to us. 69 00:02:42,000 --> 00:02:43,000 Well, I appreciate that. 70 00:02:43,000 --> 00:02:46,000 Now, I do know that science requires a lot of trial and error. 71 00:02:46,000 --> 00:02:50,000 Part of what Mythbusters is about is testing out various hypotheses. 72 00:02:50,000 --> 00:02:52,000 And I think that we've got a big one that hasn't been thoroughly tested. 73 00:02:52,000 --> 00:02:53,000 Which one is that? 74 00:02:53,000 --> 00:02:56,000 Well, it is Archimedes solar ray. 75 00:02:56,000 --> 00:02:57,000 Well, that is a classic. 76 00:02:57,000 --> 00:02:58,000 It is a classic. 77 00:02:58,000 --> 00:03:01,000 And so I'm hoping that we can take one more crack at it. 78 00:03:01,000 --> 00:03:02,000 Okay. 79 00:03:04,000 --> 00:03:07,000 The story goes that Archimedes designed a solar weapon 80 00:03:07,000 --> 00:03:10,000 that focused the sun's rays with such ferocity, 81 00:03:10,000 --> 00:03:13,000 it set an invading Roman navy ablaze. 82 00:03:16,000 --> 00:03:19,000 But when the Mythbusters duplicated his ancient design, 83 00:03:19,000 --> 00:03:21,000 It's 280 degrees. 84 00:03:21,000 --> 00:03:23,000 It failed to fuel a fire. 85 00:03:23,000 --> 00:03:25,000 I'm standing right in it. 86 00:03:25,000 --> 00:03:27,000 And I'm not dead yet. 87 00:03:27,000 --> 00:03:33,000 So they reloaded the ray with the help of MIT and 300 mirrors. 88 00:03:33,000 --> 00:03:34,000 Look at that! 89 00:03:35,000 --> 00:03:38,000 But that still didn't set this myth alight. 90 00:03:38,000 --> 00:03:41,000 I see a little smoke, but I've seen worse than that before. 91 00:03:42,000 --> 00:03:45,000 Which leaves Adam with a burning question. 92 00:03:46,000 --> 00:03:47,000 If you don't mind me saying so, sir, 93 00:03:47,000 --> 00:03:49,000 what do you think we actually got wrong on this? 94 00:03:49,000 --> 00:03:51,000 Well, there's one thing you didn't do. 95 00:03:51,000 --> 00:03:54,000 Well, we did use a giant solar mirror ray. 96 00:03:54,000 --> 00:03:59,000 And we did use 300 bronze mirrors on shelving units that were amable. 97 00:03:59,000 --> 00:04:03,000 True, but we didn't use, what, manpower? 98 00:04:03,000 --> 00:04:04,000 Exactly. 99 00:04:04,000 --> 00:04:07,000 Ah, and the Greeks had plenty of access to manpower. 100 00:04:07,000 --> 00:04:09,000 So if we could get a whole bunch of people, like 500 people, 101 00:04:09,000 --> 00:04:12,000 each with their own mirror, we might just be able to test this. 102 00:04:12,000 --> 00:04:14,000 So how do you want us to do that? 103 00:04:14,000 --> 00:04:16,000 Well, I'm going to leave that up to you guys. 104 00:04:16,000 --> 00:04:17,000 You're the experts. 105 00:04:17,000 --> 00:04:18,000 I'm going to stay here in Washington. 106 00:04:18,000 --> 00:04:20,000 I've got a little bit of business to attend to, 107 00:04:20,000 --> 00:04:23,000 but I expect you guys to go back to San Francisco, figure this out, 108 00:04:23,000 --> 00:04:25,000 get to the bottom of this once and for all, 109 00:04:25,000 --> 00:04:27,000 and then report back to me. 110 00:04:27,000 --> 00:04:28,000 We're on it. 111 00:04:29,000 --> 00:04:32,000 The Presidential Challenge has been issued. 112 00:04:32,000 --> 00:04:36,000 And it'll take a crack team of mythbusters to mastermind this one. 113 00:04:37,000 --> 00:04:42,000 Not only will they need 500 stand-in soldiers armed with 500 mirrors, 114 00:04:42,000 --> 00:04:48,000 they'll have to find a way to focus 500 beams into a spot small enough 115 00:04:48,000 --> 00:04:50,000 to fire up this myth. 116 00:04:52,000 --> 00:04:53,000 The pressure's on, man. 117 00:04:53,000 --> 00:04:55,000 It's quite a challenge, isn't it? 118 00:04:55,000 --> 00:04:58,000 Yeah, you know, I'm thinking back to the first time we shot this, 119 00:04:58,000 --> 00:05:03,000 and the trouble we had getting even 12 people to aim their mirrors on a single spot. 120 00:05:03,000 --> 00:05:04,000 Who's that? 121 00:05:04,000 --> 00:05:05,000 Who's that? 122 00:05:05,000 --> 00:05:08,000 I think that the biggest single challenge we're going to face in this story 123 00:05:08,000 --> 00:05:13,000 is getting all 500 of our soldiers' mirrors aimed on the smallest possible target. 124 00:05:13,000 --> 00:05:17,000 Yeah, we need to come up with some sort of a system of aiming device. 125 00:05:17,000 --> 00:05:18,000 Yeah, we do. 126 00:05:18,000 --> 00:05:19,000 Have you got any ideas? 127 00:05:19,000 --> 00:05:20,000 I do, actually. 128 00:05:20,000 --> 00:05:22,000 I've got a couple myself. 129 00:05:22,000 --> 00:05:25,000 Well, why don't we mock it up and scale and see which one works best? 130 00:05:25,000 --> 00:05:27,000 Perfect. Let's do it. 131 00:05:27,000 --> 00:05:31,000 From previous experience, the guys know that the tighter the focal point, 132 00:05:31,000 --> 00:05:34,000 the hotter the temperature and the more chance of flame. 133 00:05:34,000 --> 00:05:39,000 So they divide and conquer to take aim on the aim in small scale. 134 00:05:39,000 --> 00:05:44,000 If you're out in the wild with a signal mirror and you're trying to signal, let's say, a passing aircraft, 135 00:05:44,000 --> 00:05:47,000 the way you do it is you sight the aircraft up in the sky, 136 00:05:47,000 --> 00:05:49,000 and then you put your hand directly underneath it, 137 00:05:49,000 --> 00:05:53,000 and then you use a signal mirror to sweep the sun across your hand 138 00:05:53,000 --> 00:05:56,000 and thus across that passing aircraft. 139 00:05:57,000 --> 00:06:02,000 Adam's idea is to create a hand substitute to wave his beam across. 140 00:06:02,000 --> 00:06:03,000 Yeah. 141 00:06:03,000 --> 00:06:06,000 That's what I'm looking for, isn't it, little Jamie? 142 00:06:09,000 --> 00:06:12,000 Meanwhile, Jamie is gunning for inspiration. 143 00:06:12,000 --> 00:06:18,000 Now, when I think of aiming and targets, of course, I think of guns. 144 00:06:18,000 --> 00:06:21,000 They have gun sights, one here and one here, 145 00:06:21,000 --> 00:06:24,000 and if you line those two things up with your bullseye, 146 00:06:24,000 --> 00:06:26,000 you know your bullet's going to hit it, more or less. 147 00:06:26,000 --> 00:06:29,000 Jamie's no-fuss solution is a pencil and putty, 148 00:06:29,000 --> 00:06:32,000 but unfortunately, there's a problem. 149 00:06:32,000 --> 00:06:35,000 Now let's just see what happens when I move the sun. 150 00:06:37,000 --> 00:06:38,000 That's not working. 151 00:06:39,000 --> 00:06:43,000 This aiming thing is fine, except for one fatal problem, 152 00:06:43,000 --> 00:06:45,000 and that is that the sun moves. 153 00:06:45,000 --> 00:06:51,000 Its relationship with this mirror, this sight, and the target is constantly changing. 154 00:06:51,000 --> 00:06:57,000 So something as simple as a gun sight on a pistol, it's not going to help us out here. 155 00:06:57,000 --> 00:07:03,000 Jamie's system may be shot to pieces, but Adam's reticule has led him to another discovery. 156 00:07:03,000 --> 00:07:11,000 I don't want to build 500 of these, so I'm thinking actually about stringing some material across the aimers. 157 00:07:11,000 --> 00:07:16,000 It's literally a eureka moment, as Adam ditches individual aimers 158 00:07:16,000 --> 00:07:18,000 Wait a minute, netting. 159 00:07:18,000 --> 00:07:21,000 for something altogether more communal. 160 00:07:22,000 --> 00:07:24,000 Ah, yeah. 161 00:07:24,000 --> 00:07:27,000 I think I've found the perfect aiming system for our 500 soldiers, 162 00:07:27,000 --> 00:07:32,000 and it is stretching a net in front of them along the shoreline between them and the boat. 163 00:07:32,000 --> 00:07:36,000 All they have to do is line up and aim their mirror at the spot on the net 164 00:07:36,000 --> 00:07:40,000 that they can see the enemy boat, and they should be hitting that boat. 165 00:07:40,000 --> 00:07:44,000 It's cheap, it's easy, I think it's ready for a medium-scale test. 166 00:07:44,000 --> 00:07:46,000 Don't you, little Jamie? 167 00:07:46,000 --> 00:07:47,000 I do. 168 00:07:47,000 --> 00:07:57,000 Next, Carrie Grant and Tori take on a fiendish flip. 169 00:07:57,000 --> 00:08:02,000 So while Adam and Jamie are doing a myth about an ancient warrior, we're going to do one about a modern one. 170 00:08:02,000 --> 00:08:03,000 How so? 171 00:08:03,000 --> 00:08:06,000 Well, we're doing a myth from Hellboy, which combines two of my favorite things. 172 00:08:06,000 --> 00:08:07,000 Robots in math? 173 00:08:07,000 --> 00:08:08,000 Legos and spice girls? 174 00:08:08,000 --> 00:08:10,000 No, crashes and physics. 175 00:08:10,000 --> 00:08:12,000 Ah, I know the scene you're talking about. 176 00:08:12,000 --> 00:08:16,000 This is when Hellboy is walking across the road, a car is coming straight at him, 177 00:08:16,000 --> 00:08:21,000 and to stop the car, he punches the hood, causing the car to flip over his head. 178 00:08:21,000 --> 00:08:26,000 Exactly. His punch transfers the forward linear momentum of the car into circular motion. 179 00:08:26,000 --> 00:08:30,000 It's all so easy for Hellboy. 180 00:08:30,000 --> 00:08:36,000 One hammer blown to the hood, and the SUV's somersaults head over wheels. 181 00:08:36,000 --> 00:08:41,000 But are the physics of this flip true, or is it just Hollywood hype? 182 00:08:41,000 --> 00:08:44,000 Okay, there's two problems that we need to solve straight up. 183 00:08:44,000 --> 00:08:48,000 First of all, how do we measure the impact of a punch of a mythical creature? 184 00:08:48,000 --> 00:08:52,000 And secondly, how do we punch a car without running over what's punching it? 185 00:08:52,000 --> 00:08:56,000 Well, one way to get around the second problem is we could just drop a weight from a crane. 186 00:08:56,000 --> 00:08:59,000 I mean, I could build some kind of giant steel fist when the car's underneath it, 187 00:08:59,000 --> 00:09:03,000 or release it, and it'll hit the front end, bam. 188 00:09:03,000 --> 00:09:04,000 And the first problem? 189 00:09:04,000 --> 00:09:07,000 Well, essentially what we're doing here is creating a pivot at the front end. 190 00:09:07,000 --> 00:09:10,000 We start off by finding out how much weight it takes to make that touch the ground. 191 00:09:10,000 --> 00:09:12,000 I bet we could calculate the rest. 192 00:09:12,000 --> 00:09:14,000 Sounds like a good place to start. 193 00:09:14,000 --> 00:09:22,000 So to replicate the diabolical powers of this punch, they'll need a crane to lift a giant steel fist of fury. 194 00:09:22,000 --> 00:09:26,000 Then they'll drop it 20 feet onto an oncoming SUV, 195 00:09:26,000 --> 00:09:31,000 grab the nose, and possibly flip it just like Hellboy. 196 00:09:31,000 --> 00:09:33,000 But that's one heck of a punch. 197 00:09:33,000 --> 00:09:38,000 So first they need to know just how hefty the fist they drop needs to be. 198 00:09:38,000 --> 00:09:39,000 Looks like the place. 199 00:09:39,000 --> 00:09:42,000 Yeah, man. Cranes, cranes, cranes. 200 00:09:42,000 --> 00:09:45,000 So in order to flip a vehicle, you need to do two things. 201 00:09:45,000 --> 00:09:49,000 One, stop the forward movement, and two, drive the front end into the ground, 202 00:09:49,000 --> 00:09:51,000 forming a pivot point to flip over. 203 00:09:51,000 --> 00:09:54,000 So that's why we're here at Doc Bailey's Crane Yard. 204 00:09:54,000 --> 00:09:58,000 We're going to find out how much mass it takes to ground the front end of this vehicle. 205 00:09:58,000 --> 00:10:03,000 So the way that we're going to do that is drop heavier and heavier weights on the front end of our vehicle 206 00:10:03,000 --> 00:10:05,000 until the nose is actually touching the ground. 207 00:10:05,000 --> 00:10:10,000 Once we have that, we'll know exactly how much force our fist needs to punch with. 208 00:10:10,000 --> 00:10:13,000 And they're starting with 1,200 pounds. 209 00:10:13,000 --> 00:10:18,000 Okay, so the whole goal here is to get this edge down into the ground. 210 00:10:18,000 --> 00:10:21,000 Now, the standard ground clearance in this vehicle is 18 inches. 211 00:10:21,000 --> 00:10:24,000 We have gotten it to about 12. 212 00:10:24,000 --> 00:10:27,000 So we need to move on to something larger. 213 00:10:27,000 --> 00:10:33,000 To get the nose to the ground, they ramp up the weight to a mighty 5,000 pounds. 214 00:10:33,000 --> 00:10:36,000 This is definitely going to scratch the paint. 215 00:10:36,000 --> 00:10:37,000 Run! 216 00:10:37,000 --> 00:10:45,000 At more than the weight of the car, unsurprisingly, 5,000 pounds does more than just scratch the paint. 217 00:10:45,000 --> 00:10:49,000 Look at that. That is all 5,000 pounds on the front end of our vehicle, 218 00:10:49,000 --> 00:10:53,000 and the front end is not going any lower than that. 219 00:10:53,000 --> 00:10:55,000 So we've got our weight of 5,000 pounds. 220 00:10:55,000 --> 00:11:00,000 That's what it's going to take to drive the front end of this vehicle down 18 inches into the ground. 221 00:11:00,000 --> 00:11:03,000 That gives us 7,500 foot-pounds of work. 222 00:11:03,000 --> 00:11:06,000 Now we take that, plug it into our big hairy equation, 223 00:11:06,000 --> 00:11:11,000 choose a height of about 20 feet to drop the fist from, something manageable. 224 00:11:11,000 --> 00:11:18,000 That gives us an approximate weight of the fist of 1,500 pounds to produce this effect. Hope. 225 00:11:19,000 --> 00:11:22,000 That's the mass of our infernal impact. 226 00:11:22,000 --> 00:11:26,000 So now it's over to Tori to create this fist of fury. 227 00:11:27,000 --> 00:11:32,000 What I have here is a 5-foot-tall, 10-inch diameter steel rod. 228 00:11:32,000 --> 00:11:39,000 Now this is what we're going to raise up 20 feet and drop it on the front end of the vehicle to see if we get that car to flip. 229 00:11:40,000 --> 00:11:47,000 Yep, it's taken a lot of welding, angle grinding, and polishing to make a fist of 1,500 pounds of steel. 230 00:11:47,000 --> 00:11:51,000 But finally, the fist of doom is ready. 231 00:11:51,000 --> 00:11:53,000 Ha! Ha! Ha! 232 00:11:54,000 --> 00:11:58,000 After the break, the mythbusters go full tilt for a flip. 233 00:11:58,000 --> 00:11:59,000 And later... 234 00:11:59,000 --> 00:12:01,000 Do you want to save your own city? 235 00:12:12,000 --> 00:12:13,000 At the president's request... 236 00:12:13,000 --> 00:12:16,000 I think that we've got a big one that hasn't been thoroughly tested. 237 00:12:16,000 --> 00:12:17,000 Which one is that? 238 00:12:17,000 --> 00:12:19,000 It is Archimedes solar ray. 239 00:12:20,000 --> 00:12:23,000 The mythbusters are going back to the looking glass. 240 00:12:23,000 --> 00:12:24,000 I think it's ready for prime time. 241 00:12:24,000 --> 00:12:25,000 Don't you, little Jamie? 242 00:12:25,000 --> 00:12:26,000 I do. 243 00:12:27,000 --> 00:12:32,000 But before they're 500 fighters armed with 500 mirrors, take aim. 244 00:12:32,000 --> 00:12:35,000 First, there's pause for reflection. 245 00:12:35,000 --> 00:12:40,000 Now before we go and implement this aiming system times 500 soldiers, we want to make sure that it works. 246 00:12:40,000 --> 00:12:43,000 So we're going to test it in small scale up here on Jamie's roof. 247 00:12:43,000 --> 00:12:46,000 And that's where this scrappy band of Greek soldiers comes in. 248 00:12:46,000 --> 00:12:49,000 They're going to use their mirrors to try and see just how good this system is. 249 00:12:49,000 --> 00:12:50,000 You guys ready? 250 00:12:50,000 --> 00:12:52,000 Ha! Ha! Ha! Ha! 251 00:12:52,000 --> 00:12:53,000 I think they're ready. 252 00:12:53,000 --> 00:12:57,000 I'll be standing right here with my fire extinguisher just in case. 253 00:12:57,000 --> 00:13:03,000 And when I give the go-ahead, our 12 mirror holders will have 60 seconds by my stopwatch 254 00:13:03,000 --> 00:13:09,000 to redirect the energy of the sun through their mirrors towards the red dot in the middle of the target. 255 00:13:09,000 --> 00:13:11,000 At that point, we'll take two readings. 256 00:13:11,000 --> 00:13:19,000 This is our stills camera. We'll be photographing both tests with this to find and compare the smallest possible surface area of the beams on the target. 257 00:13:19,000 --> 00:13:21,000 This is our thermal imaging camera. 258 00:13:21,000 --> 00:13:23,000 It's going to be reading the temperature of both tests. 259 00:13:23,000 --> 00:13:27,000 And we're going to look for the test to give us the hottest and smallest beam. 260 00:13:27,000 --> 00:13:34,000 Okay, no aiming device starting in three, two, one, go! 261 00:13:34,000 --> 00:13:39,000 The volunteers swing into action, attempting to focus on the target 100 feet away. 262 00:13:39,000 --> 00:13:43,000 And for this control, they'll be aiming without a net. 263 00:13:43,000 --> 00:13:44,000 Try and shake your beam. 264 00:13:44,000 --> 00:13:46,000 That's often a really good way to figure out where it is. 265 00:13:46,000 --> 00:13:47,000 30 seconds. 266 00:13:47,000 --> 00:13:49,000 Come on, what are you guys doing? 267 00:13:49,000 --> 00:13:51,000 Light my fire. Come on. 268 00:13:51,000 --> 00:13:57,000 But with 12 beams all vying for the same target, it's hard to tell who's hitting a spot. 269 00:13:57,000 --> 00:13:58,000 You guys are still moving around. 270 00:13:58,000 --> 00:13:59,000 Come on, zone it in. 271 00:13:59,000 --> 00:14:00,000 Dial it in. 272 00:14:00,000 --> 00:14:02,000 And after 60 seconds... 273 00:14:02,000 --> 00:14:05,000 And mirrors down. 274 00:14:05,000 --> 00:14:07,000 That wasn't very good at all. 275 00:14:07,000 --> 00:14:09,000 The two cameras get the shot. 276 00:14:09,000 --> 00:14:14,000 Here's what I see when I look at both the stills and the thermal imaging camera on test one. 277 00:14:14,000 --> 00:14:18,000 I see in the stills camera a beam that's really diffused covering this whole area. 278 00:14:18,000 --> 00:14:21,000 On the thermal camera, I see the whole thing being warm. 279 00:14:21,000 --> 00:14:24,000 I want to see only this spot warm, not all of this. 280 00:14:24,000 --> 00:14:27,000 That's going to give me the chance of fire. 281 00:14:27,000 --> 00:14:31,000 So will the addition of the netting help our reflective regiment? 282 00:14:31,000 --> 00:14:33,000 Cue test two. 283 00:14:33,000 --> 00:14:38,000 In three, two, one, go. 284 00:14:38,000 --> 00:14:41,000 Now remember, the smaller the focus... 285 00:14:41,000 --> 00:14:43,000 That's it. That's what I'm talking about. 286 00:14:43,000 --> 00:14:45,000 Focus in like that. That's perfect. 287 00:14:45,000 --> 00:14:49,000 ...the more concentrated the beam and the more heat. 288 00:14:49,000 --> 00:14:54,000 I can feel that. The black is way too hot to touch. 289 00:14:54,000 --> 00:14:58,000 Once again at the 60 second mark, the data is recorded. 290 00:14:58,000 --> 00:14:59,000 And you're done. 291 00:14:59,000 --> 00:15:01,000 Mirrors down. 292 00:15:01,000 --> 00:15:05,000 We've got two tests under our belt and here's the comparison that I want you to see. 293 00:15:05,000 --> 00:15:08,000 First, stills camera, test one and test two. 294 00:15:08,000 --> 00:15:09,000 Check that out. 295 00:15:09,000 --> 00:15:14,000 Test two, a lot more focus, but that is not the one I want to show you. 296 00:15:14,000 --> 00:15:16,000 Out for the real fire. 297 00:15:16,000 --> 00:15:20,000 Check out the thermal imaging camera, test one and test two. 298 00:15:20,000 --> 00:15:24,000 Look at that. Look how tight that spot is in test two. 299 00:15:24,000 --> 00:15:26,000 That's the kind of fire I'm talking about. 300 00:15:26,000 --> 00:15:29,000 That's telling me that this system works. 301 00:15:32,000 --> 00:15:36,000 All right, let's see if we can flip a car with a punch. 302 00:15:36,000 --> 00:15:41,000 We're out at the Alameda runway to test whether a superhero punch can flip a car. 303 00:15:41,000 --> 00:15:47,000 No, we decided to just go for it because it's really hard to scale things like gravity. 304 00:15:47,000 --> 00:15:50,000 So we're taking our 1,500 pound steel fist. 305 00:15:50,000 --> 00:15:52,000 I can't wait to see that thing come down. 306 00:15:52,000 --> 00:15:55,000 Dropping it on a car and seeing where we need to go from there. 307 00:15:55,000 --> 00:15:58,000 And here's how it's going to go down. 308 00:15:58,000 --> 00:16:01,000 This car is going to be towed 30 miles an hour too. 309 00:16:01,000 --> 00:16:04,000 Here, where there's a pressure sensor on the ground. 310 00:16:04,000 --> 00:16:06,000 The car will hit the pressure sensor. 311 00:16:06,000 --> 00:16:10,000 That will trigger the quick release and drop the fist at the perfect time. 312 00:16:10,000 --> 00:16:14,000 And when that fist comes crashing down, it will strike the perfect spot, 313 00:16:14,000 --> 00:16:17,000 the front end of the vehicle with a huge amount of force. 314 00:16:17,000 --> 00:16:22,000 And if this myth is true, we should see that vehicle flip and over in. 315 00:16:22,000 --> 00:16:25,000 This experiment all comes down to levers. 316 00:16:25,000 --> 00:16:31,000 The impact on the edge of the hood should cause the car to pivot over the fulcrum of the front wheels. 317 00:16:31,000 --> 00:16:36,000 And then the forward momentum of the car should propel the rear end up and over. 318 00:16:36,000 --> 00:16:39,000 Well, that's the theory. 319 00:16:39,000 --> 00:16:42,000 All right, this is car flip. Get it up to 30 miles an hour. 320 00:16:42,000 --> 00:16:46,000 Here we go in 3, 2, 1, go. 321 00:16:46,000 --> 00:16:47,000 We're moving. 322 00:16:47,000 --> 00:16:48,000 Here we go. 323 00:16:48,000 --> 00:16:50,000 Here it comes. 324 00:16:50,000 --> 00:16:52,000 It looks good. Looks good. 325 00:16:52,000 --> 00:16:54,000 Trigger away. 326 00:16:54,000 --> 00:16:59,000 It just wouldn't be MythBusters if it worked perfectly the first time. 327 00:16:59,000 --> 00:17:01,000 That didn't go well. 328 00:17:01,000 --> 00:17:06,000 But it is MythBusters when the car plows through the barriers. 329 00:17:06,000 --> 00:17:08,000 Oh, not another fence. Go Grant. 330 00:17:08,000 --> 00:17:09,000 Yeah, you'll get it. 331 00:17:09,000 --> 00:17:11,000 And into the fence. 332 00:17:11,000 --> 00:17:14,000 But this is the end of the video. 333 00:17:14,000 --> 00:17:15,000 Yeah, you'll get it. 334 00:17:15,000 --> 00:17:17,000 And into the fence. 335 00:17:17,000 --> 00:17:19,000 Ah! 336 00:17:19,000 --> 00:17:25,000 But if at first you don't succeed, replace the car, check the alignment, and try again. 337 00:17:25,000 --> 00:17:27,000 The vehicle is rolling. 338 00:17:27,000 --> 00:17:29,000 It looks really good. 339 00:17:29,000 --> 00:17:30,000 Yeah, it's looking nice and straight. 340 00:17:30,000 --> 00:17:32,000 Here we go. 341 00:17:32,000 --> 00:17:34,000 Trigger. 342 00:17:34,000 --> 00:17:36,000 Oh! 343 00:17:36,000 --> 00:17:38,000 Oh! 344 00:17:38,000 --> 00:17:40,000 Oh! 345 00:17:40,000 --> 00:17:43,000 Oh, that's a good dash. 346 00:17:43,000 --> 00:17:48,000 This time the car stayed on course, but the fence triggered too late. 347 00:17:48,000 --> 00:17:50,000 No! No! 348 00:17:50,000 --> 00:17:52,000 Oh! 349 00:17:52,000 --> 00:17:55,000 All right, put that fence in our tab. 350 00:17:55,000 --> 00:18:02,000 We hit it way in the back, which means we have to fix our timing, and hopefully hit the front end of the vehicle. 351 00:18:02,000 --> 00:18:08,000 MythBusters history has shown just how complex it is to hit a target from a height. 352 00:18:09,000 --> 00:18:12,000 And as take three reveals... 353 00:18:12,000 --> 00:18:13,000 Trigger. 354 00:18:13,000 --> 00:18:17,000 That's true for a distance of only 20 feet. 355 00:18:17,000 --> 00:18:18,000 Oh! 356 00:18:18,000 --> 00:18:21,000 So close! Just one foot away. 357 00:18:21,000 --> 00:18:28,000 The challenge that we have here is that timing and position are both critical. 358 00:18:28,000 --> 00:18:37,000 You have to hit X, Y, and Z, all three dimensions perfectly within milliseconds of each other, or else it all goes wrong. 359 00:18:37,000 --> 00:18:46,000 Getting the fist to drop it precisely the right moment is like scoring a bullseye with the dartboard moving at 30 miles per hour. 360 00:18:46,000 --> 00:18:49,000 But the MythBusters will find a way. 361 00:18:49,000 --> 00:18:50,000 Next up... 362 00:18:50,000 --> 00:18:52,000 I'm good to go. 363 00:18:52,000 --> 00:18:54,000 Eve on that black sun! 364 00:18:54,000 --> 00:18:58,000 And can the MythBusters finally get a flip head over wheels? 365 00:19:04,000 --> 00:19:06,000 Red paint, stop! 366 00:19:06,000 --> 00:19:07,000 Is it a bird? 367 00:19:07,000 --> 00:19:08,000 Is it a plane? 368 00:19:08,000 --> 00:19:11,000 No, it's a car that's been punched by a hellboy. 369 00:19:11,000 --> 00:19:15,000 But could an infernal impact really flip a car? 370 00:19:15,000 --> 00:19:17,000 Triggered away! 371 00:19:17,000 --> 00:19:21,000 So far their methodology has failed to flip. 372 00:19:21,000 --> 00:19:24,000 So they've got a plan B. 373 00:19:24,000 --> 00:19:27,000 We have two trench plates on either side of the runway. 374 00:19:27,000 --> 00:19:29,000 In between it is a cable. 375 00:19:29,000 --> 00:19:30,000 That is going to be our guide light. 376 00:19:30,000 --> 00:19:33,000 It's under tension, and that will hook in to the towing system. 377 00:19:33,000 --> 00:19:37,000 That's going to guide our vehicle into the crash snow where the fist is. 378 00:19:37,000 --> 00:19:41,000 Three, two, one, hit it. 379 00:19:43,000 --> 00:19:45,000 Here that we are in the channel. 380 00:19:45,000 --> 00:19:47,000 The car gets up to 30 miles per hour. 381 00:19:47,000 --> 00:19:49,000 So it's going straight. 382 00:19:49,000 --> 00:19:50,000 And... 383 00:19:51,000 --> 00:19:53,000 Oh! 384 00:19:54,000 --> 00:19:57,000 Look at that fist into that car. 385 00:19:57,000 --> 00:19:59,000 Rather than flippin' the lid of the SUV... 386 00:20:01,000 --> 00:20:02,000 That is crazy! 387 00:20:02,000 --> 00:20:04,000 They crushed it. 388 00:20:05,000 --> 00:20:08,000 But the guys are actually encouraged by this result. 389 00:20:10,000 --> 00:20:13,000 So I'm standing at the impact point where the fist hit the truck. 390 00:20:13,000 --> 00:20:16,000 And as you can see, it triggered a little bit late. 391 00:20:16,000 --> 00:20:21,000 So we're going to go back, adjust our trigger time, and then give them another shot. 392 00:20:21,000 --> 00:20:27,000 And with the trigger reset by just one tenth of a second, it really is now or never. 393 00:20:27,000 --> 00:20:30,000 Talk about recycling here on the show, huh? 394 00:20:31,000 --> 00:20:36,000 Down to their last SUV, this is the final shot at a full-scale flip. 395 00:20:37,000 --> 00:20:39,000 The bar's in the slot. 396 00:20:39,000 --> 00:20:41,000 It's going straight. 397 00:20:41,000 --> 00:20:44,000 Here comes the car into the fist. 398 00:20:45,000 --> 00:20:46,000 Trigger! 399 00:20:51,000 --> 00:20:52,000 Bullseye! 400 00:20:52,000 --> 00:20:53,000 That was nice! 401 00:20:53,000 --> 00:20:55,000 How satisfying was that? 402 00:20:55,000 --> 00:20:56,000 Bullseye. 403 00:20:57,000 --> 00:21:00,000 The fist of fury finally hammers the hood. 404 00:21:01,000 --> 00:21:06,000 But despite hitting the sweet spot right above the bumper in front of the fulcrum, 405 00:21:06,000 --> 00:21:11,000 the car didn't even get rear-wheel elevation, let alone a somersault. 406 00:21:15,000 --> 00:21:19,000 Soon enough, the mythbusters will be making rays while the sun shines. 407 00:21:19,000 --> 00:21:21,000 They've worked out their aiming system. 408 00:21:21,000 --> 00:21:27,000 Now all they need is 500 mirrors, a boat, and a small army of scientists. 409 00:21:28,000 --> 00:21:31,000 And at the shop, those 500 mirrors have arrived. 410 00:21:33,000 --> 00:21:36,000 Along with 500 bronze Mylar sheets. 411 00:21:39,000 --> 00:21:40,000 Ah, that's great. 412 00:21:40,000 --> 00:21:42,000 Look at me, I'm all hammered metal. 413 00:21:42,000 --> 00:21:47,000 Not only are the mirrors three times the size of their previous attempts, they're also double-sided. 414 00:21:47,000 --> 00:21:54,000 So that if the Archimedes era bronze can't create a flame, hopefully the modern mirrors will. 415 00:21:54,000 --> 00:22:00,000 With a mirror production line in full swing, Adam and Jamie can turn their attention to the maritime. 416 00:22:01,000 --> 00:22:05,000 And at Nelson's Marine, they found the perfect target. 417 00:22:05,000 --> 00:22:08,000 This thing is a lifeboat that was salvaged off of a ship. 418 00:22:08,000 --> 00:22:13,000 And when I'm done with it, it's going to be a classic Roman tri-reen. 419 00:22:14,000 --> 00:22:19,000 It's going to take a lot of camouflage to turn this lifeboat into an ancient mariner. 420 00:22:19,000 --> 00:22:22,000 Step one is to give it a more aged look. 421 00:22:23,000 --> 00:22:25,000 And that ought to do it. 422 00:22:29,000 --> 00:22:32,000 The next step is to add a little Roman flavor. 423 00:22:34,000 --> 00:22:36,000 Look into my eye. 424 00:22:36,000 --> 00:22:40,000 Before finally hoisting the target for our mirror militia. 425 00:22:40,000 --> 00:22:42,000 Oh, she rises. 426 00:22:42,000 --> 00:22:46,000 Blood red stripes tied ill upon her enemies. 427 00:22:48,000 --> 00:22:50,000 Well, you know, I think our work is done here. 428 00:22:50,000 --> 00:22:51,000 Nicely done. 429 00:22:55,000 --> 00:23:00,000 With the boat seaworthy, it's time to first find a battle-worthy location. 430 00:23:00,000 --> 00:23:04,000 Before trying to rustle up a 500 strong band of brothers. 431 00:23:04,000 --> 00:23:05,000 This is perfect. 432 00:23:05,000 --> 00:23:07,000 Our soldiers along the shore here. 433 00:23:07,000 --> 00:23:10,000 Our enemy hordes coming out there on the boat. 434 00:23:10,000 --> 00:23:12,000 We got a location. 435 00:23:12,000 --> 00:23:16,000 The first port of call is to get a leg up on the aiming system. 436 00:23:16,000 --> 00:23:20,000 In order to help our soldiers aim their beams of sunlight right at that boat, 437 00:23:20,000 --> 00:23:26,000 we're going to put up a fence using these rebar posts and this mesh all the way down the line of soldiers. 438 00:23:26,000 --> 00:23:29,000 You can see clearly where it is and is not. 439 00:23:29,000 --> 00:23:31,000 You know, that totally works. 440 00:23:31,000 --> 00:23:35,000 Hopefully that's all that's required to set that puppy on fire. 441 00:23:35,000 --> 00:23:37,000 With the aiming network in place, 442 00:23:37,000 --> 00:23:41,000 700 feet of fence, all I can think is one thing. 443 00:23:41,000 --> 00:23:43,000 I hope this works. 444 00:23:43,000 --> 00:23:48,000 The mirrors arrive with 700 feet of trestle tables to support them. 445 00:23:48,000 --> 00:23:52,000 Now all that remains is for Jamie to get a little bit of light. 446 00:23:52,000 --> 00:23:56,000 And a little bit of light to get the trestle tables to support them. 447 00:23:56,000 --> 00:24:01,000 Now all that remains is for Jamie to don his period correct safety gear. 448 00:24:01,000 --> 00:24:04,000 Add them to get into character. 449 00:24:04,000 --> 00:24:06,000 That's it. 450 00:24:06,000 --> 00:24:08,000 Here we go. 451 00:24:08,000 --> 00:24:13,000 And to rustle up that 500 strong science hungry horde. 452 00:24:13,000 --> 00:24:14,000 Coming up later. 453 00:24:14,000 --> 00:24:18,000 Will this be enough to flip a vehicle? 454 00:24:19,000 --> 00:24:23,000 The Mythbusters finally hit the nail on the head 455 00:24:23,000 --> 00:24:27,000 and nailed the hood of the SUV with their fist of fury. 456 00:24:27,000 --> 00:24:29,000 But with nothing close to a flip, 457 00:24:29,000 --> 00:24:33,000 that could be the nail in the coffin for this myth. 458 00:24:33,000 --> 00:24:37,000 In our first test, we were not able to get a car to flip. 459 00:24:37,000 --> 00:24:41,000 So we've decided to take this myth and test it in small scale. 460 00:24:41,000 --> 00:24:43,000 Then we're going to be running the same test. 461 00:24:43,000 --> 00:24:45,000 However, we're going to be changing a few variables. 462 00:24:45,000 --> 00:24:47,000 We're going to change the mass of the fist, 463 00:24:47,000 --> 00:24:49,000 the speed of the vehicle, 464 00:24:49,000 --> 00:24:53,000 and change the center of gravity on the vehicle. 465 00:24:53,000 --> 00:24:57,000 By toying with every combination of these vital variables, 466 00:24:57,000 --> 00:25:02,000 they're hoping to find the optimal conditions to result in a small scale flip. 467 00:25:02,000 --> 00:25:06,000 And first they feel the need to test speed. 468 00:25:06,000 --> 00:25:09,000 With a fist that weighs half the weight of the car ready to fall, 469 00:25:09,000 --> 00:25:12,000 they're starting with the car at its lowest velocity. 470 00:25:12,000 --> 00:25:14,000 Alright, here we go. 471 00:25:15,000 --> 00:25:17,000 It's blind. 472 00:25:19,000 --> 00:25:22,000 I'm going to have to say that didn't flip. 473 00:25:22,000 --> 00:25:25,000 The slow speed failed to even get the back wheels off the ground. 474 00:25:25,000 --> 00:25:28,000 So it's time to up the acceleration. 475 00:25:28,000 --> 00:25:31,000 More velocity equals more energy. 476 00:25:31,000 --> 00:25:33,000 But will that mean more tilt? 477 00:25:33,000 --> 00:25:37,000 Hopefully that extra momentum will cause the car to flip. 478 00:25:37,000 --> 00:25:42,000 Tori puts his finger to the trigger and they try maximum velocity. 479 00:25:44,000 --> 00:25:46,000 That was a direct hit. 480 00:25:46,000 --> 00:25:48,000 We're still not getting the flip. 481 00:25:48,000 --> 00:25:51,000 I think we need to get some more energy punching down on the car. 482 00:25:51,000 --> 00:25:54,000 This time the back wheels did at least get off the ground, 483 00:25:54,000 --> 00:25:56,000 but only by two degrees. 484 00:25:56,000 --> 00:25:58,000 And they'll need 90 for a flip. 485 00:25:58,000 --> 00:26:01,000 So there's a long way to go yet. 486 00:26:01,000 --> 00:26:06,000 But will upping the ante on the impact make a difference? 487 00:26:06,000 --> 00:26:11,000 Going for full tilt, they're dropping three times the weight of the car. 488 00:26:12,000 --> 00:26:17,000 But instead of a tilt, the weight grinds the car to a halt. 489 00:26:17,000 --> 00:26:20,000 So for the next test, they try 200%. 490 00:26:20,000 --> 00:26:23,000 Okay, this might be the magic punch. 491 00:26:24,000 --> 00:26:25,000 Good shot. 492 00:26:25,000 --> 00:26:27,000 No flip. 493 00:26:27,000 --> 00:26:32,000 That net them the highest rear wheel elevation so far of 15 degrees. 494 00:26:32,000 --> 00:26:36,000 But they're two parameters down and still miles off a flip. 495 00:26:36,000 --> 00:26:40,000 Will tweaking the final variable cause a tumble? 496 00:26:40,000 --> 00:26:46,000 If the mass is down low and far away from the pivot point, it's harder to flip. 497 00:26:46,000 --> 00:26:49,000 If you move the mass up away from the pivot point, 498 00:26:49,000 --> 00:26:52,000 suddenly it becomes easier to flip the car over. 499 00:26:52,000 --> 00:26:56,000 So we're going to put some luggage on the top here and see if that helps us out. 500 00:26:56,000 --> 00:27:02,000 It's a tiny SUV capping holiday with 25% of the car's weight in luggage. 501 00:27:02,000 --> 00:27:05,000 Alright, so this is it, the final parameters for our final test. 502 00:27:05,000 --> 00:27:07,000 And everything is in our favor. 503 00:27:07,000 --> 00:27:11,000 But I mean, so far after all these tests that we have done, I think this is asking a lot. 504 00:27:11,000 --> 00:27:14,000 In other words, it's now or never. 505 00:27:16,000 --> 00:27:17,000 And it's never. 506 00:27:18,000 --> 00:27:22,000 Raising the center of gravity did increase the tilt to 25 degrees, 507 00:27:22,000 --> 00:27:24,000 but that's nowhere near enough. 508 00:27:24,000 --> 00:27:30,000 Even with the combination of the optimal variables, they're no closer to a flip, 509 00:27:30,000 --> 00:27:33,000 which means this is busted. 510 00:27:33,000 --> 00:27:38,000 I'm pretty sure cars weren't meant to flip end over end over end. 511 00:27:38,000 --> 00:27:44,000 So even a big giant punch from a superhuman from hell, I don't think it's going to do it. 512 00:27:44,000 --> 00:27:49,000 So why is it that no combination of these variables seems to be making any difference with our results? 513 00:27:49,000 --> 00:27:51,000 Well, it all comes down to physics. 514 00:27:51,000 --> 00:27:54,000 See, we are applying our force too close to the full film. 515 00:27:54,000 --> 00:27:57,000 Imagine that it's like a seesaw with a large weight on one side 516 00:27:57,000 --> 00:28:02,000 and you apply weight on the other side, but here's the kicker, almost on top of the full chrome. 517 00:28:02,000 --> 00:28:07,000 Now, the force that you need to apply to get the weight to lift from here is almost astronomical. 518 00:28:07,000 --> 00:28:12,000 But the problem is, if you apply too much force, the lever will break. 519 00:28:12,000 --> 00:28:18,000 The flip in physics are busting the myth, but that's never stopped the myth busters before. 520 00:28:18,000 --> 00:28:23,000 Next, the Archimedes raid apocalypse begins. 521 00:28:23,000 --> 00:28:26,000 That's the spirit soldier! 522 00:28:28,000 --> 00:28:34,000 The myth busters are testing the presidential theory that more manpower and more mirrors 523 00:28:34,000 --> 00:28:37,000 That's it, that's what I'm talking about, that's perfect! 524 00:28:37,000 --> 00:28:40,000 could create a solar death ray. 525 00:28:40,000 --> 00:28:45,000 I expect you guys to figure this out, get to the bottom of this once and for all and then report back to me. 526 00:28:45,000 --> 00:28:48,000 Well, as long as they can find the manpower. 527 00:28:50,000 --> 00:28:55,000 Now, you may be wondering, where are we going to find 500 Greek soldiers? 528 00:28:55,000 --> 00:29:02,000 Here's where. 500 middle and high school students have graciously agreed to be our Greek soldiers for science! 529 00:29:05,000 --> 00:29:06,000 It's on. 530 00:29:07,000 --> 00:29:12,000 It certainly is. So first up, the briefing on taking down the enemy. 531 00:29:12,000 --> 00:29:20,000 You guys are going to play Greek soldiers defending their home city of Syracuse from the marauding Roman army 532 00:29:20,000 --> 00:29:23,000 under General Marcellus, played by James Franklin Heineman right here. 533 00:29:26,000 --> 00:29:34,000 Now, your countrymen, the great Greek mathematician Archimedes has given you a very novel weapon to defend yourselves. 534 00:29:34,000 --> 00:29:36,000 The power of the sun. 535 00:29:36,000 --> 00:29:40,000 You are going to be lined up on the water's edge in ranks. 536 00:29:40,000 --> 00:29:47,000 Evil Jamie, General Marcellus, will be coming towards you in a boat with the black sun painted on its sail. 537 00:29:47,000 --> 00:29:52,000 If you all were able to aim your sunbeams all at the single spot of the black sun on this sail, 538 00:29:52,000 --> 00:29:54,000 you're going to set his boat on fire and set it on fire. 539 00:29:54,000 --> 00:29:56,000 General Marcellus, Roman's home. Are you guys with me? 540 00:29:57,000 --> 00:29:59,000 I didn't hear you. Are you with me? 541 00:30:01,000 --> 00:30:03,000 I think they're ready. 542 00:30:04,000 --> 00:30:09,000 They're certainly spoiling for a little ship broiling, so it's time to deploy the troops. 543 00:30:11,000 --> 00:30:13,000 This is crazy. 544 00:30:13,000 --> 00:30:19,000 For the best chance of success, their target will be anchored, and they'll aim at the black sun for two reasons. 545 00:30:19,000 --> 00:30:26,000 Firstly, because just like the small scale test, we want the beams to meet at a focal point to concentrate the heat. 546 00:30:26,000 --> 00:30:35,000 And secondly, because with an ignition point of 410 degrees Fahrenheit, the sail is the most flammable part of the ship. 547 00:30:38,000 --> 00:30:41,000 With the trireme 400 feet from the shore. 548 00:30:41,000 --> 00:30:44,000 All right soldiers, are you feeling me? Give me a hua! 549 00:30:45,000 --> 00:30:51,000 It's time for 500 bronze mirrors to beam down a Raypocalypse. 550 00:30:51,000 --> 00:30:59,000 In the distance, the enemy ship approaches to my left and to my right, an army of 500 young men and women strong. 551 00:30:59,000 --> 00:31:04,000 With any luck, we will avert this enemy and send them back to their home country. 552 00:31:05,000 --> 00:31:07,000 The suspense is totally killing me. 553 00:31:09,000 --> 00:31:11,000 Okay, Greek soldiers! 554 00:31:12,000 --> 00:31:16,000 Do you want Marcellus to take your city of Syracuse? 555 00:31:17,000 --> 00:31:20,000 Do you want him to own the island of Sicily? 556 00:31:20,000 --> 00:31:23,000 No, it's the gateway to the Mediterranean! 557 00:31:23,000 --> 00:31:26,000 You've got to aim your sunbeam at that boat now. 558 00:31:26,000 --> 00:31:29,000 Get that beam on the center of the sail. 559 00:31:29,000 --> 00:31:37,000 Adam issues the order, and 500 bronze mirrors turn simultaneously to focus their beams on the black sun. 560 00:31:37,000 --> 00:31:39,000 Do you see it on the center of the sail? 561 00:31:40,000 --> 00:31:44,000 Excellent! How do the beams look to you, Captain Marcellus? 562 00:31:44,000 --> 00:31:56,000 Well, I don't see any flames on my boat yet, but these mirrors are really intense, like a row of flash bulbs going off constantly. 563 00:31:57,000 --> 00:32:04,000 But with the bronze 20% less reflective than the modern mirrors, the results aren't lighting any fires. 564 00:32:04,000 --> 00:32:06,000 No fire. 565 00:32:06,000 --> 00:32:16,000 And after 15 minutes of concentrated bronze beams, the thermal image shows that the temperature on the sail has only risen by 45 degrees. 566 00:32:17,000 --> 00:32:20,000 So it's time to up the intensity. 567 00:32:20,000 --> 00:32:28,000 Greek soldiers, I need every single one of you to spin your mirrors around 180 degrees and let's get some glass going at this boat. 568 00:32:28,000 --> 00:32:33,000 That's it! Now you start to see how easy it is to see your beam, right? 569 00:32:34,000 --> 00:32:37,000 Are you feeling me? Give me a hua! 570 00:32:38,000 --> 00:32:46,000 Quick as a flash, Adam's 500 have their modern mirrors focused on the black sun, but will they prove more powerful? 571 00:32:46,000 --> 00:32:51,000 Now that's some brightness. You guys have to hold your beam super steady. 572 00:32:51,000 --> 00:32:55,000 It's the only thing that will save your home city. Do you want to save your home city? 573 00:32:56,000 --> 00:33:01,000 That's the kind of energy it'll take, except sun's energy. Point at that boat. 574 00:33:02,000 --> 00:33:04,000 That's the spirit, soldiers! 575 00:33:05,000 --> 00:33:08,000 I'm Greek, not Scottish. I don't know why I'm talking like that. 576 00:33:09,000 --> 00:33:15,000 500 silvered mirror beams on the sail have already resulted in a huge rise in temperature. 577 00:33:15,000 --> 00:33:21,000 They're getting 200 degrees of concentrated heat, but that's not yet enough to ignite the sail. 578 00:33:22,000 --> 00:33:30,000 The intensity I'm seeing from some of these mirrors is just incredible, and yet no sign of fire. 579 00:33:30,000 --> 00:33:34,000 Alright, I think you've got to start pulling this boat closer to us, okay? 580 00:33:36,000 --> 00:33:43,000 Keep those mirrors focused. The closer he gets, the hotter he's going to get, and we may just get some fire. That's it. Good. 581 00:33:43,000 --> 00:33:47,000 So, Commander Savage takes one last chance to organize the troops. 582 00:33:47,000 --> 00:33:49,000 Flash, flash, flash! I want fire! 583 00:33:49,000 --> 00:33:52,000 And prevent a full-scale Heinemann invasion. 584 00:33:53,000 --> 00:33:55,000 These guys are doing great, and we're not getting fired. 585 00:33:56,000 --> 00:33:57,000 East! 586 00:33:58,000 --> 00:34:01,000 Stay tuned for the fantastic flippin' finale. 587 00:34:01,000 --> 00:34:03,000 There's so much that can go wrong on this. 588 00:34:03,000 --> 00:34:06,000 And can all the President's men take down the trireme? 589 00:34:07,000 --> 00:34:10,000 This is the last chance we have to catch this thing on fire. 590 00:34:16,000 --> 00:34:21,000 Okay, so sad to say, but I think that we've busted the myth as it appears in the movie in Small Scale. 591 00:34:21,000 --> 00:34:24,000 Well, you guys know what that means. It's time to replicate the results. 592 00:34:24,000 --> 00:34:27,000 Now, normally at this point in the myth, we would replicate it like they did it in the movie, 593 00:34:27,000 --> 00:34:30,000 probably with like a nitrogen cannon and a piston to flip the car. 594 00:34:30,000 --> 00:34:36,000 But what if we just used the same physics but changed the design of the car to see if we could get it to flip? 595 00:34:36,000 --> 00:34:39,000 That could be fun, but maybe we can do this in the Small Scale first, 596 00:34:39,000 --> 00:34:42,000 because you saw how many cars we destroyed just replicating the myth. 597 00:34:42,000 --> 00:34:43,000 Are you tired of crashing cars? 598 00:34:43,000 --> 00:34:45,000 Never, but we're running out of them. 599 00:34:47,000 --> 00:34:53,000 Now, we know that this myth is down to levels, but replicating the movie and dropping the weight on the hood just isn't causing the car to flip. 600 00:34:53,000 --> 00:34:56,000 The force is applied too close to the fulcrum. 601 00:34:56,000 --> 00:34:57,000 But what if we create a lever? 602 00:34:57,000 --> 00:35:00,000 We increase the distance of the weight to the fulcrum. 603 00:35:00,000 --> 00:35:03,000 That way, when we drop the weight, the vehicle should flip and over in. 604 00:35:03,000 --> 00:35:05,000 I mean, it should work like a charm. 605 00:35:05,000 --> 00:35:06,000 That's right, science fans. 606 00:35:06,000 --> 00:35:13,000 Instead of Hollywood fakery, Torey's devilish idea is to flip this car using physics. 607 00:35:13,000 --> 00:35:15,000 In three, two, one. 608 00:35:16,000 --> 00:35:19,000 Oh! 609 00:35:19,000 --> 00:35:24,000 Grant, that looked like a flip to me. 610 00:35:24,000 --> 00:35:28,000 I mean, it didn't do it exactly like the movie, but... 611 00:35:28,000 --> 00:35:30,000 Dude, I think we can move on from there. 612 00:35:30,000 --> 00:35:31,000 This might work. 613 00:35:31,000 --> 00:35:32,000 It was going. 614 00:35:32,000 --> 00:35:36,000 The lever scored a tilt on the car of over 90 degrees, 615 00:35:36,000 --> 00:35:39,000 and it's clear that the physics are working. 616 00:35:39,000 --> 00:35:42,000 So after a small scale proof, 617 00:35:42,000 --> 00:35:47,000 it's time to ramp this up and put a massive lever on the SUV's roof. 618 00:35:47,000 --> 00:35:48,000 Oh, yeah! 619 00:35:48,000 --> 00:35:50,000 It should be good. 620 00:35:50,000 --> 00:35:52,000 Now this thing is beefy. 621 00:35:52,000 --> 00:35:57,000 It's got to be strong because we're going to be dropping 5,000 pounds on the front end of it. 622 00:35:57,000 --> 00:35:59,000 If anything is going to make it flip, it's this design. 623 00:35:59,000 --> 00:36:04,000 But it's one thing to do it in small scale and another to do it in large scale. 624 00:36:04,000 --> 00:36:07,000 It's quite the engineering challenge, 625 00:36:07,000 --> 00:36:11,000 but with 1,100 pounds of steel welded into a giant lever, 626 00:36:11,000 --> 00:36:13,000 they're ready to put it to the test. 627 00:36:13,000 --> 00:36:18,000 The best case scenario here is that we hit the lever perfectly with our 5,000 pound weight. 628 00:36:18,000 --> 00:36:21,000 The car tips right at the tipping point. 629 00:36:21,000 --> 00:36:22,000 Boom! 630 00:36:22,000 --> 00:36:23,000 It crashes upside down. 631 00:36:23,000 --> 00:36:27,000 And the worst case scenario here, none of us really want to imagine. 632 00:36:27,000 --> 00:36:31,000 For timings off, we might hit the weight, smash the car and have to revisit. 633 00:36:31,000 --> 00:36:36,000 There's a lot riding on this car, and it's not just the weight of the lever. 634 00:36:36,000 --> 00:36:40,000 There's only one car, and they've only got one shot at the car. 635 00:36:40,000 --> 00:36:42,000 They've only got one shot to get this ride. 636 00:36:42,000 --> 00:36:46,000 For once, failure is not an option. 637 00:36:46,000 --> 00:36:50,000 And we have done everything to engineer it in our favor. 638 00:36:50,000 --> 00:36:56,000 I think if that weight hits the front end of this vehicle, we're going to see this thing flip. 639 00:36:56,000 --> 00:36:58,000 I'm a little excited. 640 00:36:58,000 --> 00:36:59,000 I'm a little nervous. 641 00:36:59,000 --> 00:37:01,000 There's so much that can go wrong on this. 642 00:37:01,000 --> 00:37:02,000 I'm anxious. 643 00:37:02,000 --> 00:37:03,000 Let's do it. 644 00:37:03,000 --> 00:37:07,000 Okay, this is car somersaults, lever car. 645 00:37:07,000 --> 00:37:14,000 Alright, final experiment in three, two, one, go. 646 00:37:14,000 --> 00:37:19,000 It's now or never as the lever car is towed towards its destiny. 647 00:37:19,000 --> 00:37:25,000 Either to be crushed by 5,000 pounds, or to be finally flipped by physics. 648 00:37:25,000 --> 00:37:27,000 Still on the channel, looks like it's going straight. 649 00:37:27,000 --> 00:37:29,000 It looks like it's going straight. 650 00:37:29,000 --> 00:37:30,000 Looks like it's going straight. 651 00:37:30,000 --> 00:37:32,000 Alright, alright, this is it, this is it. 652 00:37:32,000 --> 00:37:33,000 Alright. 653 00:37:33,000 --> 00:37:38,000 Oh, yes! 654 00:37:38,000 --> 00:37:40,000 Bingo. 655 00:37:40,000 --> 00:37:42,000 Everything went exactly the plan. 656 00:37:42,000 --> 00:37:45,000 The weight triggering at the right moment, 657 00:37:45,000 --> 00:37:51,000 dropping onto the very front of the lever and tilting the car. 658 00:37:51,000 --> 00:37:55,000 But it was still only a 45 degree dangle. 659 00:37:55,000 --> 00:37:58,000 And of course, there was no flip. 660 00:37:58,000 --> 00:38:01,000 Can you believe that? 661 00:38:01,000 --> 00:38:03,000 Oh my gosh, the stars had to align. 662 00:38:03,000 --> 00:38:05,000 True, look it dug into the ground here. 663 00:38:05,000 --> 00:38:07,000 Did you see how high the back end got? 664 00:38:07,000 --> 00:38:09,000 I mean, it almost went over. 665 00:38:09,000 --> 00:38:13,000 But the important thing here is that it didn't. 666 00:38:13,000 --> 00:38:16,000 So we tested this myth just like in the movie, 667 00:38:16,000 --> 00:38:18,000 yet we couldn't get the car to flip. 668 00:38:18,000 --> 00:38:20,000 Then we moved on to the ridiculous. 669 00:38:20,000 --> 00:38:24,000 We changed the design of the car, we increased the force of the punch. 670 00:38:24,000 --> 00:38:27,000 However, we still were not able to get the car to flip. 671 00:38:27,000 --> 00:38:30,000 I really wish it had, but it didn't. 672 00:38:30,000 --> 00:38:32,000 So this myth is busted. 673 00:39:00,000 --> 00:39:03,000 Enemy ship captain by Jamie, a.k.a. General Marcellus. 674 00:39:03,000 --> 00:39:08,000 If there ever was a test to determine that Paula's shields could be an effective weapon of war, 675 00:39:08,000 --> 00:39:11,000 this is that test. 676 00:39:11,000 --> 00:39:13,000 This is that test. 677 00:39:13,000 --> 00:39:16,000 And with the enemy now only 100 feet away, 678 00:39:16,000 --> 00:39:21,000 it's the last chance for Adam and his army to get their solar ray to work. 679 00:39:21,000 --> 00:39:24,000 Alright soldiers, you're doing a fantastic job. 680 00:39:24,000 --> 00:39:27,000 I'd like everyone to take their mirrors off the target briefly 681 00:39:27,000 --> 00:39:29,000 and take a deep breath with me. 682 00:39:29,000 --> 00:39:31,000 Inhale. 683 00:39:31,000 --> 00:39:33,000 Exhale. 684 00:39:33,000 --> 00:39:38,000 On the count of three, I want you all to aim your beams at that black sun 685 00:39:38,000 --> 00:39:40,000 and keep them as steady as possible. 686 00:39:40,000 --> 00:39:42,000 Are you ready? 687 00:39:42,000 --> 00:39:44,000 We're doing this for Syracuse. 688 00:39:44,000 --> 00:39:50,000 In three, two, one, aim on that black sun. 689 00:39:50,000 --> 00:39:52,000 Hold it steady. 690 00:39:52,000 --> 00:39:55,000 Find your beam, keep it centered on that sail. 691 00:39:55,000 --> 00:39:58,000 That's it. That's twice as bright as before. 692 00:39:58,000 --> 00:40:04,000 Right, but to ignite the sail, the focal point will have to reach 410 degrees Fahrenheit. 693 00:40:04,000 --> 00:40:09,000 And with the black sun at 230 degrees, that's a long way off. 694 00:40:09,000 --> 00:40:12,000 Look, he's taunting you. 695 00:40:12,000 --> 00:40:15,000 You're giving this every possible effort. 696 00:40:15,000 --> 00:40:19,000 This is the last chance we have to catch this thing on fire. 697 00:40:19,000 --> 00:40:24,000 Oh, no, he's lobbing, flinging, tennis balls at us. 698 00:40:24,000 --> 00:40:26,000 Keep those mirrors on the sail. 699 00:40:26,000 --> 00:40:29,000 Oh, he just took out one of your great cameraman. 700 00:40:29,000 --> 00:40:31,000 Are you going to stand for that? 701 00:40:31,000 --> 00:40:35,000 Keep those mirrors focused on the sail. 702 00:40:35,000 --> 00:40:40,000 The tennis balls are flying and the beams are focused on the sail. 703 00:40:40,000 --> 00:40:47,000 But while 280 degrees is impressive, it's still 130 off a sail ignition. 704 00:40:47,000 --> 00:40:54,000 Okay, Adam, I figure that if this was a real war, you just lost 705 00:40:54,000 --> 00:40:58,000 because I got a whole bunch of you guys and you didn't get one of me. 706 00:40:58,000 --> 00:41:01,000 I think you're right. Why don't you gear down and come on in? 707 00:41:01,000 --> 00:41:03,000 I think we've got to call this one. 708 00:41:03,000 --> 00:41:04,000 Yeah. 709 00:41:06,000 --> 00:41:10,000 Yep, after over an hour of beaming the sun's rays onto the boat, 710 00:41:10,000 --> 00:41:15,000 our 500 soldiers have earned themselves an honorable discharge. 711 00:41:15,000 --> 00:41:17,000 One, two, three. 712 00:41:17,000 --> 00:41:19,000 Yes, Boston! 713 00:41:21,000 --> 00:41:22,000 You hear that? 714 00:41:22,000 --> 00:41:25,000 I was actually kind of disappointed we didn't set the boat on fire. 715 00:41:25,000 --> 00:41:29,000 We've got plenty of sun. We've got plenty of mirrors to do the trick. 716 00:41:29,000 --> 00:41:31,000 But here's the thing. 717 00:41:31,000 --> 00:41:35,000 Mythbusters is about experimentation. It's not about demonstration. 718 00:41:35,000 --> 00:41:38,000 And when I was in the middle of this experiment out on that boat 719 00:41:38,000 --> 00:41:42,000 with all those mirrors shining in my face, I realized something really important. 720 00:41:42,000 --> 00:41:48,000 And that is that they were actually quite distracting and blinding, even painful. 721 00:41:48,000 --> 00:41:52,000 And that right there may be the grain of truth at the heart of this myth. 722 00:41:52,000 --> 00:41:57,000 Good old Archimedes may not have come up with this trick in order to set a ship on fire, 723 00:41:57,000 --> 00:42:01,000 but rather to distract and disorient invading armies. 724 00:42:01,000 --> 00:42:05,000 And that says something really important about the nature of experimentation. 725 00:42:05,000 --> 00:42:12,000 When we experiment, when we try things and we fail, we start to ask why. 726 00:42:12,000 --> 00:42:13,000 And that's when we learn. 727 00:42:13,000 --> 00:42:15,000 Let's go tell POTUS. 728 00:42:15,000 --> 00:42:16,000 Okay. 729 00:42:19,000 --> 00:42:21,000 So how'd it go, guys? 730 00:42:21,000 --> 00:42:25,000 Well, it was an awful lot of work, but in the end the myth was busted. 731 00:42:25,000 --> 00:42:26,000 Nice work. 732 00:42:26,000 --> 00:42:27,000 Thank you. 733 00:42:27,000 --> 00:42:28,000 Thank you. 734 00:42:28,000 --> 00:42:29,000 Well, thank you guys for everything you do. 735 00:42:29,000 --> 00:42:30,000 Thanks. 736 00:42:30,000 --> 00:42:31,000 Really enjoyed.