1 00:00:00,000 --> 00:00:03,280 It may not look like it, but we're professionals. 2 00:00:03,280 --> 00:00:05,000 Do us a favor. 3 00:00:05,000 --> 00:00:06,000 Don't try this at home! 4 00:00:06,000 --> 00:00:07,000 Whoa! 5 00:00:07,000 --> 00:00:11,000 On this episode of Mythbusters... 6 00:00:11,000 --> 00:00:15,000 Only in Mythbusters is someone transferred on a stretcher to be dropped off a building. 7 00:00:15,000 --> 00:00:19,000 Adam and Jamie jump on the myth of an inner spring flame. 8 00:00:19,000 --> 00:00:21,000 That was just as much fun as it seemed like. 9 00:00:21,000 --> 00:00:25,000 If a three-story drop into shallow water is lethal... 10 00:00:26,000 --> 00:00:30,000 Could you cushion the same fall with a mattress? 11 00:00:30,000 --> 00:00:32,000 I feel like I just got spanked. 12 00:00:32,000 --> 00:00:35,000 And live to leap another day. 13 00:00:35,000 --> 00:00:36,000 I'm screwed. 14 00:00:36,000 --> 00:00:38,000 Meanwhile, Carrie, Tori and Grant... 15 00:00:38,000 --> 00:00:39,000 I'm from battle. 16 00:00:39,000 --> 00:00:41,000 ...put their boulders to the grindstone. 17 00:00:41,000 --> 00:00:44,000 I like to call this a piece, but on the brick. 18 00:00:44,000 --> 00:00:47,000 Rock in the myth that 15th century canineers... 19 00:00:47,000 --> 00:00:49,000 I love that echo in the canyon. 20 00:00:49,000 --> 00:00:51,000 ...fired stone cannonballs. 21 00:00:51,000 --> 00:00:52,000 What? 22 00:00:52,000 --> 00:00:55,000 Would they really do as much damage as metal? 23 00:00:55,000 --> 00:00:58,000 And leave nothing for the enemy to fire back? 24 00:00:58,000 --> 00:01:01,000 That is the most disturbing castle I've ever seen. 25 00:01:04,000 --> 00:01:06,000 Who are the Mythbusters? 26 00:01:06,000 --> 00:01:07,000 Adam Savage. 27 00:01:07,000 --> 00:01:09,000 It's so different! 28 00:01:09,000 --> 00:01:10,000 And Jamie Heineman. 29 00:01:10,000 --> 00:01:12,000 Well, there's your problem. 30 00:01:12,000 --> 00:01:17,000 Between them more than 30 years of special effects experience... 31 00:01:17,000 --> 00:01:19,000 Together with Tori Belleggi. 32 00:01:19,000 --> 00:01:20,000 That was insane. 33 00:01:20,000 --> 00:01:21,000 Carrie Byron. 34 00:01:21,000 --> 00:01:22,000 We can confirm. 35 00:01:22,000 --> 00:01:23,000 And Grant Imahara. 36 00:01:23,000 --> 00:01:26,000 The Ecapitation Hazard, everybody. 37 00:01:26,000 --> 00:01:29,000 They don't just tell the myths. 38 00:01:29,000 --> 00:01:31,000 They put them to the test. 39 00:01:38,000 --> 00:01:41,000 Okay, so we're starting off with something a bit different. 40 00:01:41,000 --> 00:01:42,000 That's right. 41 00:01:42,000 --> 00:01:44,000 We're starting off with an apology. 42 00:01:44,000 --> 00:01:46,000 Because it was during the filming of this episode... 43 00:01:46,000 --> 00:01:49,000 that a cannonball accidentally went through someone's house. 44 00:01:49,000 --> 00:01:50,000 Yeah. 45 00:01:50,000 --> 00:01:52,000 And we take safety very seriously on our show. 46 00:01:52,000 --> 00:01:55,000 And despite a whole array of safety precautions at the bomb range... 47 00:01:55,000 --> 00:01:57,000 we had a major mishap. 48 00:01:57,000 --> 00:02:00,000 A mishap where we're tremendously relieved that no one got hurt. 49 00:02:00,000 --> 00:02:03,000 But we're also tremendously sorry that it happened at all. 50 00:02:03,000 --> 00:02:05,000 And with that, let's start our show. 51 00:02:06,000 --> 00:02:10,000 Okay, so first up, a myth that's all about soft landings. 52 00:02:12,000 --> 00:02:13,000 Playing with dolls again, are we? 53 00:02:13,000 --> 00:02:14,000 No, no, no. 54 00:02:14,000 --> 00:02:15,000 I'm setting up a scenario. 55 00:02:15,000 --> 00:02:16,000 For what? 56 00:02:16,000 --> 00:02:17,000 Alright, let me walk you through it. 57 00:02:17,000 --> 00:02:19,000 Picture yourself in a hotel room... 58 00:02:19,000 --> 00:02:22,000 and you're in mortal danger because there's some guys banging on the door... 59 00:02:22,000 --> 00:02:23,000 who want to shoot you. 60 00:02:23,000 --> 00:02:25,000 Now, you can't obviously leave through the normal means like the door. 61 00:02:25,000 --> 00:02:28,000 You've got to leave by jumping off your balcony. 62 00:02:28,000 --> 00:02:31,000 Unfortunately, your balcony, it's 35 feet above the ground. 63 00:02:31,000 --> 00:02:34,000 Fortunately, however, there's a swimming pool below you. 64 00:02:34,000 --> 00:02:37,000 Unfortunately, that swimming pool is only 4.5 feet deep. 65 00:02:37,000 --> 00:02:38,000 That could get ugly. 66 00:02:38,000 --> 00:02:39,000 Very ugly. 67 00:02:39,000 --> 00:02:41,000 This comes from the show Burn Notice. 68 00:02:41,000 --> 00:02:43,000 And what our hero is explaining to the audience... 69 00:02:43,000 --> 00:02:46,000 is he throws a mattress out the window and into the pool... 70 00:02:46,000 --> 00:02:48,000 and then he jumps into the mattress to safety. 71 00:02:48,000 --> 00:02:51,000 So the myth is that if you need to jump into a shallow pool from a height... 72 00:02:51,000 --> 00:02:53,000 you should throw a mattress down there first. 73 00:02:53,000 --> 00:02:55,000 I couldn't have said it better myself. 74 00:02:55,000 --> 00:02:57,000 According to this Burn Notice myth... 75 00:02:57,000 --> 00:02:59,000 there's no way you could leap and live... 76 00:02:59,000 --> 00:03:03,000 after a 35 foot drop into shallow water. 77 00:03:03,000 --> 00:03:05,000 However, breaking your fall with a mattress... 78 00:03:05,000 --> 00:03:08,000 could supposedly save your body. 79 00:03:08,000 --> 00:03:12,000 So would a crash landing really leave you with more of a spring in your step... 80 00:03:12,000 --> 00:03:13,000 than a splash landing? 81 00:03:13,000 --> 00:03:15,000 So, how do you want to test this? 82 00:03:15,000 --> 00:03:18,000 Well, clearly the main thing here is to test what it's like to jump onto a mattress... 83 00:03:18,000 --> 00:03:21,000 in a pool, but we need to compare that to what it would be like... 84 00:03:21,000 --> 00:03:23,000 just jumping into the pool as well. 85 00:03:23,000 --> 00:03:24,000 Yeah, indeed. 86 00:03:24,000 --> 00:03:27,000 And we're going to need a pool that's exactly 4.5 feet deep. 87 00:03:27,000 --> 00:03:29,000 Well, let's get a crane and some dummies... 88 00:03:29,000 --> 00:03:32,000 and attach some sensors to them and drop them off, see what happens. 89 00:03:32,000 --> 00:03:33,000 That's perfect. Let's do it. 90 00:03:33,000 --> 00:03:38,000 So it's straight to the shallow end at Defremery Pool in Oakland. 91 00:03:38,000 --> 00:03:39,000 That's a nice pool. 92 00:03:39,000 --> 00:03:40,000 It ought to work. 93 00:03:40,000 --> 00:03:42,000 Let's see if we can get Buster hurt. 94 00:03:42,000 --> 00:03:43,000 Okay. 95 00:03:43,000 --> 00:03:46,000 Where they'll hoist Buster up for this three-story story. 96 00:03:46,000 --> 00:03:48,000 Turns out one of the most difficult parts of this shoot... 97 00:03:48,000 --> 00:03:50,000 is just getting the grate all into the pool area. 98 00:03:50,000 --> 00:03:52,000 It's a bit of a tight squeeze. 99 00:03:52,000 --> 00:03:55,000 This whole story comes down to if you have 35 feet to jump... 100 00:03:55,000 --> 00:03:58,000 and you've got a pool below you that's only 4.5 feet deep... 101 00:03:58,000 --> 00:04:00,000 is it better to jump into the regular pool... 102 00:04:00,000 --> 00:04:02,000 or onto a mattress floating in that pool? 103 00:04:02,000 --> 00:04:04,000 With all the drops that Buster's going to do... 104 00:04:04,000 --> 00:04:06,000 we're going to want to make sure we know how hard he's dropping... 105 00:04:06,000 --> 00:04:07,000 and that's where this comes into play. 106 00:04:07,000 --> 00:04:11,000 This is an accelerometer, and just like a crash test dummy... 107 00:04:11,000 --> 00:04:13,000 I'm going to install this in Buster's chest... 108 00:04:13,000 --> 00:04:17,000 to let us know how many G's he pulls on each of the surfaces we're dropping on. 109 00:04:17,000 --> 00:04:20,000 With an accelerometer heart to track his impact... 110 00:04:20,000 --> 00:04:21,000 Let's close him up. 111 00:04:21,000 --> 00:04:24,000 The PVC man is ready for the drop. 112 00:04:27,000 --> 00:04:29,000 Only in MythBusters is someone transferred on a stretcher... 113 00:04:29,000 --> 00:04:30,000 to be dropped off a building. 114 00:04:30,000 --> 00:04:34,000 However, first he needs to adopt the burn notice position. 115 00:04:34,000 --> 00:04:36,000 Now in the show, our character states... 116 00:04:36,000 --> 00:04:39,000 that properly distributing your weight, i.e. landing butt first... 117 00:04:39,000 --> 00:04:41,000 onto a mattress on the water... 118 00:04:41,000 --> 00:04:43,000 is the safest way to jump into the pool. 119 00:04:43,000 --> 00:04:45,000 So Buster will jump butt first. 120 00:04:45,000 --> 00:04:49,000 But first up, Buster will take the plunge without a mattress. 121 00:04:49,000 --> 00:04:52,000 So what kind of damage will that drop do? 122 00:04:52,000 --> 00:04:54,000 Here we go Buster. 123 00:04:54,000 --> 00:04:55,000 Time to jump into the pool. 124 00:04:55,000 --> 00:05:00,000 Okay, dropping Buster into the water from 35 feet. 125 00:05:00,000 --> 00:05:03,000 In 3, 2, 1, go! 126 00:05:10,000 --> 00:05:15,000 That was just as much fun as it seemed like. 127 00:05:15,000 --> 00:05:19,000 Buster took the fall and his backside took a walk... 128 00:05:19,000 --> 00:05:22,000 from both the water and the bottom of the pool. 129 00:05:22,000 --> 00:05:24,000 But what does the data say? 130 00:05:24,000 --> 00:05:28,000 So we dropped our dummy 35 feet straight into the water... 131 00:05:28,000 --> 00:05:31,000 and we saw an initial impact of 50 G's... 132 00:05:31,000 --> 00:05:36,000 followed by an impact along the bottom of the pool of 29 G's. 133 00:05:36,000 --> 00:05:39,000 Now 50 G's is our threshold for potential death. 134 00:05:39,000 --> 00:05:43,000 One way or another, you're not walking away from an impact like that. 135 00:05:43,000 --> 00:05:46,000 Yep, there's no walking away from that. 136 00:05:46,000 --> 00:05:48,000 But how will it compare with the myth? 137 00:05:48,000 --> 00:05:50,000 Can the average mattress... 138 00:05:50,000 --> 00:05:54,000 For our mattress test we've chosen a standard inner spring mattress. 139 00:05:54,000 --> 00:05:55,000 That's this one right here. 140 00:05:55,000 --> 00:05:58,000 Really make a fatal flop survivable. 141 00:05:58,000 --> 00:06:00,000 Perfect. 142 00:06:00,000 --> 00:06:05,000 Okay, 3, 2, 1, go! 143 00:06:07,000 --> 00:06:09,000 Nice! 144 00:06:09,000 --> 00:06:11,000 X marks the spot. 145 00:06:12,000 --> 00:06:15,000 Buster hit with an audible impact. 146 00:06:15,000 --> 00:06:18,000 But did the mattress cushion his tush? 147 00:06:19,000 --> 00:06:21,000 Buster's drop was perfect. 148 00:06:21,000 --> 00:06:24,000 And although he might not look like it, according to our accelerometer data... 149 00:06:24,000 --> 00:06:26,000 he is a freaking mess. 150 00:06:26,000 --> 00:06:28,000 He pulled 86 G's hitting that mattress... 151 00:06:28,000 --> 00:06:32,000 roughly equivalent to a severe car accident. 152 00:06:32,000 --> 00:06:35,000 And that was supposed to be the safe jump. 153 00:06:35,000 --> 00:06:37,000 It's not looking very good for this story. 154 00:06:37,000 --> 00:06:39,000 It's not looking good. 155 00:06:39,000 --> 00:06:42,000 Because that's a more damaging impact than on to water alone. 156 00:06:42,000 --> 00:06:44,000 However... 157 00:06:44,000 --> 00:06:46,000 Well, I love our accelerometer data from all these drops... 158 00:06:46,000 --> 00:06:49,000 but I can't help feeling that they're not giving us the full picture. 159 00:06:49,000 --> 00:06:53,000 I'd love in some way to be able to see what kind of injuries Buster might take... 160 00:06:53,000 --> 00:06:55,000 from that kind of fall. 161 00:06:55,000 --> 00:06:57,000 I know what you mean. 162 00:06:57,000 --> 00:06:59,000 And I might have just the thing. 163 00:07:05,000 --> 00:07:08,000 Next up, a myth on the rocks. 164 00:07:10,000 --> 00:07:13,000 Okay, so our next myth is a great one that comes from the 15th century. 165 00:07:13,000 --> 00:07:14,000 Awesome. What's the story? 166 00:07:14,000 --> 00:07:16,000 Well, it's about cannons. 167 00:07:16,000 --> 00:07:18,000 Or more specifically about the cannonballs. 168 00:07:18,000 --> 00:07:21,000 So the European canineers of the time were reluctant to fire their cannons... 169 00:07:21,000 --> 00:07:23,000 on the battlefield for two reasons. 170 00:07:23,000 --> 00:07:26,000 Well, I guess one reason would be so they couldn't retrieve the cannonballs... 171 00:07:26,000 --> 00:07:27,000 and fire them back. 172 00:07:27,000 --> 00:07:29,000 So I guess the other reason could be that... 173 00:07:29,000 --> 00:07:31,000 you know, cast iron was a pretty valuable commodity back then. 174 00:07:31,000 --> 00:07:34,000 So you could melt down the cannonballs and make your own cannons. 175 00:07:34,000 --> 00:07:35,000 Exactly. 176 00:07:35,000 --> 00:07:39,000 So the myth is that instead of firing their cast iron cannonballs... 177 00:07:39,000 --> 00:07:41,000 they made their own cannonballs out of stone... 178 00:07:41,000 --> 00:07:44,000 and fired them to have equivalent damage to the cast iron... 179 00:07:44,000 --> 00:07:48,000 yet exploded impacts where they couldn't be sent back or melted down. 180 00:07:48,000 --> 00:07:49,000 Interesting. 181 00:07:49,000 --> 00:07:50,000 That is brilliant. 182 00:07:50,000 --> 00:07:53,000 On the battlefields of 15th century Europe... 183 00:07:53,000 --> 00:07:57,000 some canineers didn't want to give the enemy any ammunition. 184 00:07:57,000 --> 00:08:01,000 So supposedly they fashioned their cannon fodder out of rock... 185 00:08:01,000 --> 00:08:05,000 but would a stone cannonball really do as much damage as metal... 186 00:08:05,000 --> 00:08:07,000 and explode on impact? 187 00:08:08,000 --> 00:08:11,000 Okay, so ultimately we're going to have to build a castle of some kind... 188 00:08:11,000 --> 00:08:14,000 and compare the damage done by cast iron and stone cannonballs. 189 00:08:14,000 --> 00:08:16,000 Which means we're going to have to make some stone cannonballs... 190 00:08:16,000 --> 00:08:18,000 but also we're going to have to get a hold of a cannon. 191 00:08:18,000 --> 00:08:21,000 Well, we do know somebody who has the perfect antique cannon. 192 00:08:21,000 --> 00:08:24,000 We can just call up Harry Webb and see if he'll let us use old Moses. 193 00:08:24,000 --> 00:08:27,000 Yeah, but you know, something tells me he's not going to be too happy about us... 194 00:08:27,000 --> 00:08:29,000 firing stone cannonballs through old Moses. 195 00:08:29,000 --> 00:08:30,000 What if we break it? 196 00:08:30,000 --> 00:08:34,000 Well, we could use the small cannon that I built for the ball and chain prison escape. 197 00:08:34,000 --> 00:08:38,000 Good idea, but you know, we've never actually fired that at genuine battle speed... 198 00:08:38,000 --> 00:08:42,000 so maybe we use old Moses to get the true firing speed of a cannonball... 199 00:08:42,000 --> 00:08:45,000 then we calibrate your cannon to match that and go from there. 200 00:08:45,000 --> 00:08:46,000 Great. 201 00:08:46,000 --> 00:08:49,000 Yep, before anyone casts the first stone... 202 00:08:49,000 --> 00:08:51,000 the mythbusters head to the bomb range. 203 00:08:53,000 --> 00:08:55,000 We've safely fired our cannon several times on the show. 204 00:08:55,000 --> 00:08:57,000 We used it for the ball and chain myth. 205 00:08:58,000 --> 00:09:01,000 We've actually fired cheese from it. 206 00:09:02,000 --> 00:09:06,000 But we've never actually had to fire anything at what you call battle speeds... 207 00:09:06,000 --> 00:09:08,000 so that's what we need to find out first. 208 00:09:08,000 --> 00:09:11,000 How fast does a steel cannonball travel from a real cannon... 209 00:09:11,000 --> 00:09:15,000 and once we know that, we can calibrate this cannon to match its speed. 210 00:09:15,000 --> 00:09:18,000 But before any cannon calibration... 211 00:09:18,000 --> 00:09:21,000 they're pulling out all the stops to create a rock solid barricade... 212 00:09:21,000 --> 00:09:24,000 to stop the cannonball in its tracks. 213 00:09:24,000 --> 00:09:26,000 That looks about perfect. 214 00:09:26,000 --> 00:09:30,000 Meanwhile, old Moses moses up to the bomb range. 215 00:09:31,000 --> 00:09:32,000 Wow. 216 00:09:32,000 --> 00:09:35,000 Old Moses and the mythbusters go way back. 217 00:09:37,000 --> 00:09:41,000 In fact, you might say it's the cannon of choice when it comes to mythbusting. 218 00:09:44,000 --> 00:09:46,000 We're gonna fire a cannonball out of old Moses. 219 00:09:46,000 --> 00:09:48,000 We're gonna catch it on high speed. 220 00:09:48,000 --> 00:09:51,000 We're gonna use the scale to see how fast that cannonball is going... 221 00:09:51,000 --> 00:09:54,000 and then we're gonna match our cannonball to that same speed. 222 00:09:54,000 --> 00:09:57,000 Now since these cannonballs are so important, we have to find it. 223 00:09:57,000 --> 00:09:59,000 So we have a cannonball catcher. 224 00:09:59,000 --> 00:10:02,000 We have three garbage cans filled with water in front of a concrete wall... 225 00:10:02,000 --> 00:10:03,000 covered in bed liner. 226 00:10:03,000 --> 00:10:06,000 That should slow the cannonball down and we'll be able to retrieve it. 227 00:10:06,000 --> 00:10:11,000 Behind the wall, there's also a second line of barrels for optimum cannonball catching. 228 00:10:11,000 --> 00:10:15,000 And behind that, the ultimate safety stop at Dirt Nilside. 229 00:10:15,000 --> 00:10:18,000 One pound of black powder. 230 00:10:18,000 --> 00:10:20,000 So now it's over to carry to prep the powder. 231 00:10:20,000 --> 00:10:23,000 Foil container to prevent sparks. 232 00:10:24,000 --> 00:10:26,000 One powerful burrito. 233 00:10:26,000 --> 00:10:27,000 Vented. 234 00:10:27,000 --> 00:10:28,000 Vented. 235 00:10:28,000 --> 00:10:32,000 One pound of black powder is the battle standard for a cannon like old Moses. 236 00:10:32,000 --> 00:10:38,000 And safely behind the blastproof shields, it's the countdown to cannonball calibration. 237 00:10:38,000 --> 00:10:42,000 Okay, this is old Moses in three, two, one. 238 00:10:46,000 --> 00:10:47,000 That was energetic. 239 00:10:48,000 --> 00:10:49,000 Oh my God. 240 00:10:49,000 --> 00:10:51,000 Isn't that beautiful a ray of water? 241 00:10:52,000 --> 00:10:55,000 The red bloom of water looked striking. 242 00:10:57,000 --> 00:11:00,000 And the ball catchers caught the cannonball. 243 00:11:02,000 --> 00:11:05,000 So we've got one, two, three barrels. 244 00:11:05,000 --> 00:11:07,000 Hey, here's the ball. Wow. 245 00:11:07,000 --> 00:11:10,000 Alright, let's see how fast it was going. 246 00:11:10,000 --> 00:11:13,000 There's the shot and there's the ball. 247 00:11:13,000 --> 00:11:14,000 With some us velocity. 248 00:11:14,000 --> 00:11:16,000 1200 feet per second. 249 00:11:16,000 --> 00:11:17,000 Nice. 250 00:11:17,000 --> 00:11:19,000 So that's the speed to match. 251 00:11:19,000 --> 00:11:23,000 And it's out with old Moses and in with a Mythbusters miniature cannon. 252 00:11:26,000 --> 00:11:27,000 Coming up. 253 00:11:29,000 --> 00:11:31,000 Busters cousin drops in. 254 00:11:32,000 --> 00:11:33,000 Perfect hit. 255 00:11:33,000 --> 00:11:34,000 And later. 256 00:11:34,000 --> 00:11:37,000 How many tools does it take to make a stone cannonball? 257 00:11:37,000 --> 00:11:38,000 We're going to find out. 258 00:11:38,000 --> 00:11:39,000 Yeah. 259 00:12:08,000 --> 00:12:10,000 We're going to dummy up something more life like. 260 00:12:10,000 --> 00:12:15,000 Remember that I said I had something that was a little better than the dummies we'd been using? 261 00:12:15,000 --> 00:12:16,000 We do. 262 00:12:16,000 --> 00:12:17,000 Hey Adam, check this out. 263 00:12:23,000 --> 00:12:27,000 Yep, you may remember this disturbing face from the Halloween special. 264 00:12:27,000 --> 00:12:29,000 Are you ready for the horror? 265 00:12:31,000 --> 00:12:35,000 But its role as John Doe hid the Sindabber's real purpose. 266 00:12:35,000 --> 00:12:36,000 To the window. 267 00:12:37,000 --> 00:12:41,000 As an ultra realistic human analog. 268 00:12:41,000 --> 00:12:44,000 These are surgical training dummies. 269 00:12:44,000 --> 00:12:48,000 They're made muscle by muscle and they're actually sutured in place. 270 00:12:48,000 --> 00:12:50,000 Oh my God. 271 00:12:50,000 --> 00:12:54,000 I dare say that it's absolutely beautiful. 272 00:12:54,000 --> 00:12:56,000 This is medically accurate. 273 00:12:56,000 --> 00:12:57,000 It is. 274 00:12:57,000 --> 00:12:58,000 It's made of a polymer. 275 00:12:58,000 --> 00:13:03,000 It's water based and everything is as realistic as modern technology can make it. 276 00:13:03,000 --> 00:13:06,000 And its anatomy isn't the only thing that's realistic. 277 00:13:06,000 --> 00:13:11,000 I wish you were here because it's beautiful and it smells kind of bad, which you'd expect. 278 00:13:11,000 --> 00:13:16,000 But before the Sindabber can take the plunge, Jamie needs to give it a skin. 279 00:13:16,000 --> 00:13:20,000 And this shrink wrapping also doubles as waterproofing. 280 00:13:23,000 --> 00:13:24,000 Ready for market. 281 00:13:24,000 --> 00:13:28,000 So with the Sindabber skinned up, it's time to drop it off at the pool. 282 00:13:30,000 --> 00:13:31,000 You feeling ready buddy? 283 00:13:31,000 --> 00:13:38,000 One of the nice things about using this particular type of dummy is that with the help of a portable X-ray machine like this device over here, 284 00:13:38,000 --> 00:13:45,000 we can actually figure out what happened internally to the dummy without performing the equivalent of an autopsy. 285 00:13:45,000 --> 00:13:48,000 So after a checkup to make sure everything is where it should be, 286 00:13:48,000 --> 00:13:50,000 You can see that the ribs come across. 287 00:13:50,000 --> 00:13:51,000 They're all intact. 288 00:13:51,000 --> 00:13:53,000 You can see all the cervical vertebra. 289 00:13:53,000 --> 00:13:59,000 It's time to strap up the Sindbuster for its first fall into four and a half feet of water. 290 00:14:01,000 --> 00:14:04,000 Sindabber into the pool from 35 feet. 291 00:14:04,000 --> 00:14:08,000 In three, two, one, go. 292 00:14:11,000 --> 00:14:12,000 A perfect hit. 293 00:14:13,000 --> 00:14:15,000 It bottoms up for the new buster. 294 00:14:17,000 --> 00:14:20,000 But what kind of damage did that drop do? 295 00:14:21,000 --> 00:14:27,000 Well to find out, it's fished out for a closer examination by both the X-ray and an expert. 296 00:14:27,000 --> 00:14:33,000 Now that we've dropped our dummy, we would really like to get an expert opinion on exactly how much damage it sustained. 297 00:14:33,000 --> 00:14:38,000 And we'd like an expert to deal with this kind of injury every single day and that's called an orthopedic surgeon. 298 00:14:38,000 --> 00:14:40,000 We found one named Dr. Noah Weiss. 299 00:14:40,000 --> 00:14:44,000 Dr. Weiss, do you want to give us a free consult on buster's injuries? 300 00:14:44,000 --> 00:14:45,000 Sure, I'd be happy to. 301 00:14:45,000 --> 00:14:46,000 Let's go take a look. 302 00:14:47,000 --> 00:14:54,000 We can see over here is there's actually been a separation between the lumbar spine and the sacrum. 303 00:14:54,000 --> 00:14:59,000 This is a very severe injury that would most certainly result in major spinal cord damage. 304 00:14:59,000 --> 00:15:02,000 Wow, so our dummy's paralyzed. 305 00:15:02,000 --> 00:15:03,000 It's paralyzed. 306 00:15:04,000 --> 00:15:09,000 So our Sindabber, after being dropped into the swimming pool without a mattress in its way, has sustained some very serious damage. 307 00:15:09,000 --> 00:15:12,000 A shattered pelvis and a paralyzing spine injury. 308 00:15:12,000 --> 00:15:18,000 And if it seems like I'm smiling, I'm only happy that we got some significant results from this dummy. 309 00:15:18,000 --> 00:15:21,000 Now we're going to drop one into a mattress. 310 00:15:22,000 --> 00:15:28,000 In their previous test with the original buster, the g-load of the drop onto a mattress was higher. 311 00:15:28,000 --> 00:15:35,000 But will that mean that Sindabuster 2 sustains more injury by making a bed and leaping into it? 312 00:15:35,000 --> 00:15:36,000 Ready, Adam? 313 00:15:36,000 --> 00:15:37,000 Ready. 314 00:15:37,000 --> 00:15:41,000 Three, two, one, go. 315 00:15:43,000 --> 00:15:44,000 Perfect hit. 316 00:15:44,000 --> 00:15:45,000 Perfect hit. 317 00:15:47,000 --> 00:15:49,000 Buster hit the crash pad. 318 00:15:49,000 --> 00:15:51,000 And its butt took the brunt. 319 00:15:53,000 --> 00:15:58,000 So it's over to Dr. Weiss to find out if the Sindabuster's rear is in the clear. 320 00:15:58,000 --> 00:16:06,000 On physical examination, what's immediately apparent is the pelvis is far more unstable compared to the previous endeavor. 321 00:16:06,000 --> 00:16:07,000 Really? 322 00:16:07,000 --> 00:16:11,000 Yeah, this is completely disrupted. 323 00:16:11,000 --> 00:16:12,000 Wow. 324 00:16:12,000 --> 00:16:13,000 And that's not all. 325 00:16:13,000 --> 00:16:18,000 As the X-rays reveal, the mattress jumper sustained far more damage all over. 326 00:16:18,000 --> 00:16:27,000 In addition to a similar injury where he basically blew apart his pelvis, this one also appears to have two injuries to his spine. 327 00:16:27,000 --> 00:16:33,000 One in the lumbar spine or low back and one in the mid-back or thoracic spine. 328 00:16:33,000 --> 00:16:41,000 He dislocated his knee, he dislocated his elbow, and the injury to the pelvis was much worse than in the first endeavor. 329 00:16:41,000 --> 00:16:44,000 So the mattress was far worse than falling into water. 330 00:16:44,000 --> 00:16:51,000 I think both jumps were a problem, but it definitely appears to be much worse landing on the mattress in the water. 331 00:16:51,000 --> 00:16:52,000 So he's even more dead? 332 00:16:52,000 --> 00:16:54,000 He would be even more dead than the first one. 333 00:16:54,000 --> 00:16:55,000 Is that a medical term? 334 00:16:55,000 --> 00:16:57,000 It is now. 335 00:17:02,000 --> 00:17:07,000 We have tested this thing six ways to Sunday, actually four ways and on weekdays, but we have found it. 336 00:17:07,000 --> 00:17:13,000 Yes, jumping from 35 feet is bad into water, but in the mattress, it's like twice as bad. 337 00:17:13,000 --> 00:17:17,000 This is a counterintuitive result, which for us is totally awesome. 338 00:17:17,000 --> 00:17:21,000 Yep, both Buster and Sin Buster tell the same story. 339 00:17:21,000 --> 00:17:25,000 Despite what you'd expect, a mattress doesn't push in a splash landing. 340 00:17:25,000 --> 00:17:27,000 It only makes it worse. 341 00:17:27,000 --> 00:17:30,000 So where would you say this mitts dance? 342 00:17:31,000 --> 00:17:39,000 You know, it's on the tip of my tongue, but I can't quite, what is it, not right, not truthful, ill-conceived? 343 00:17:39,000 --> 00:17:43,000 Ill-conceived, improper, let's say just wrong. 344 00:17:43,000 --> 00:17:44,000 Okay, it's wrong. 345 00:17:44,000 --> 00:17:45,000 It's wrong. 346 00:17:45,000 --> 00:17:51,000 But you know what bothers me is that people have actually been known to dive from that height into shallow water and survive. 347 00:17:51,000 --> 00:17:59,000 I've been thinking about that, and I think what we could do is find someone who knows how to safely jump from those heights into shallow water and have them show us the method. 348 00:17:59,000 --> 00:18:01,000 I think that would be a good thing to know. 349 00:18:01,000 --> 00:18:02,000 Let's do it. 350 00:18:02,000 --> 00:18:03,000 Okay. 351 00:18:04,000 --> 00:18:11,000 The myth is Buster, but is there any way to get the drop on a fall into four and a half feet of water? 352 00:18:13,000 --> 00:18:19,000 Coming up on Mythbusters, for the first time in 400 years, we've fired cannonballs made of stone. 353 00:18:19,000 --> 00:18:20,000 Let's go. 354 00:18:26,000 --> 00:18:33,000 Between a rock and a hard place, supposedly some 15th century cannons fired rocks instead of iron. 355 00:18:33,000 --> 00:18:38,000 Because not only did they do the same damage, they also broke up on impact. 356 00:18:38,000 --> 00:18:45,000 But before they get to the stone, first the mythbusters need to calibrate the mini cannon. 357 00:18:45,000 --> 00:18:46,000 Time for the little guns. 358 00:18:46,000 --> 00:18:51,000 Just like Old Moses, the miniature cannon faces off against a full barrel safety system. 359 00:18:51,000 --> 00:18:53,000 Gotta mix up a good batch. 360 00:18:53,000 --> 00:18:56,000 But that's where the similarities end. 361 00:18:57,000 --> 00:19:03,000 Okay, we know that Old Moses' battle speed fires a cannonball traveling at 1200 feet per second. 362 00:19:03,000 --> 00:19:07,000 So now that we know that, we can match our cannon to that speed. 363 00:19:07,000 --> 00:19:13,000 Now Old Moses used one pound of black powder to get the ball up to speed, but we're going to need to increase that for our cannon. 364 00:19:13,000 --> 00:19:14,000 Why? 365 00:19:14,000 --> 00:19:18,000 Well, the barrel is shorter, which means the ball won't have as much time to accelerate. 366 00:19:18,000 --> 00:19:20,000 So we've got to give it a little bit more kick. 367 00:19:20,000 --> 00:19:26,000 To allow for that, we're going to use a bit more black powder to get us up to the 1200 feet per second we're looking for. 368 00:19:26,000 --> 00:19:30,000 Right, so the cannon is aimed at the ball catchers. 369 00:19:30,000 --> 00:19:33,000 The steel is loaded. 370 00:19:33,000 --> 00:19:35,000 And the fuse is lit. 371 00:19:36,000 --> 00:19:37,000 Let's go. 372 00:19:37,000 --> 00:19:39,000 Then it's back to the bunker. 373 00:19:39,000 --> 00:19:43,000 Alright, fuse is lit. Ready for the calibration test. 374 00:19:43,000 --> 00:19:46,000 Alright, see if Stubby can do it. 375 00:19:46,000 --> 00:19:48,000 Gonna be soon. 376 00:19:58,000 --> 00:20:05,000 So that was the misfire that somehow sent our cannonball up and over the huge safety berm and into somebody's house. 377 00:20:05,000 --> 00:20:11,000 Yeah, and when we realized that it happened, we called off the experiment immediately to help out in any way we could. 378 00:20:11,000 --> 00:20:15,000 But first, that meant looking after the people whose property had been damaged. 379 00:20:15,000 --> 00:20:20,000 And we thought it was very important that we rebuild bridges with a local community as a whole. 380 00:20:20,000 --> 00:20:27,000 And at that same time, our team was conducting an investigation to figure out what went wrong to prevent it from ever happening again in the future. 381 00:20:27,000 --> 00:20:30,000 Believe me, it was an intense few months for everyone involved. 382 00:20:30,000 --> 00:20:37,000 Yeah, you know, but once we started making progress on all of those things, the property, the community, the safety review, we wanted to move forward. 383 00:20:37,000 --> 00:20:40,000 And we started thinking about finishing off this myth. 384 00:20:40,000 --> 00:20:44,000 Yeah, and first up was to find a new, more remote location. 385 00:20:44,000 --> 00:20:49,000 And then, Harry Webb decided that we could use Old Moses to fire our stone cannonballs after all. 386 00:20:49,000 --> 00:20:54,000 Which meant the first thing up was to figure out what type of rock these cannonballs were even made out of. 387 00:20:54,000 --> 00:20:57,000 Gonna be diamonds around here somewhere. 388 00:20:57,000 --> 00:21:06,000 And for that rock research, Tori visited the California Academy of Sciences to talk to mineral maestro geologist Peter Rupnery. 389 00:21:06,000 --> 00:21:09,000 What would have been the three best types of stones that they could have used? 390 00:21:09,000 --> 00:21:11,000 I think sandstone would have been a common material. 391 00:21:11,000 --> 00:21:14,000 It was used for a lot of construction in various parts of Europe. 392 00:21:14,000 --> 00:21:16,000 It's very soft. It would be easy to work. 393 00:21:16,000 --> 00:21:21,000 I don't know how well a sandstone cannonball would survive being shot out of a cannon. 394 00:21:21,000 --> 00:21:24,000 They also would probably have used a lot of limestone. 395 00:21:24,000 --> 00:21:27,000 It's very hard, but also common and easy to work. 396 00:21:27,000 --> 00:21:31,000 And there would have been a lot of experience working this kind of sedimentary rock. 397 00:21:31,000 --> 00:21:33,000 Granite, on the other hand, is an igneous rock. 398 00:21:33,000 --> 00:21:38,000 It's not as common, but it's highly priced because of its strength. 399 00:21:38,000 --> 00:21:41,000 It's very dense. You probably do a lot of damage. 400 00:21:41,000 --> 00:21:44,000 Well, I guess we won't know until we make our own cannonballs and see how well they do. 401 00:21:44,000 --> 00:21:45,000 Cool. 402 00:21:45,000 --> 00:21:46,000 I have one question for you. 403 00:21:46,000 --> 00:21:48,000 Yeah. How much kryptonite do you have? 404 00:21:48,000 --> 00:21:50,000 That's a secret. 405 00:21:52,000 --> 00:21:55,000 Sandstone, limestone and granite are the candidates. 406 00:21:55,000 --> 00:22:02,000 But will any have the combination of hardness and composition to be as effective as metal and break up on impact? 407 00:22:04,000 --> 00:22:07,000 Well, with each mythbuster working on a different rock, 408 00:22:07,000 --> 00:22:11,000 it's time for all three to put their boulders to the grindstone. 409 00:22:14,000 --> 00:22:18,000 Grant decides to carve his sandstone cannonball on the lathe. 410 00:22:19,000 --> 00:22:24,000 While Carrie needs a more aggressive tool to make an impression on her limestone. 411 00:22:25,000 --> 00:22:27,000 Can I switch to sandstone, please? 412 00:22:28,000 --> 00:22:32,000 But Tori has turned in the power tools for a super-powered tool. 413 00:22:32,000 --> 00:22:36,000 Look at this thing. It's designed to polish concrete. 414 00:22:39,000 --> 00:22:41,000 That's what I'm talking about. 415 00:22:42,000 --> 00:22:48,000 Even though the igneous granite is the hardest rock on the block, the concrete grinder soon has it beat. 416 00:22:48,000 --> 00:22:51,000 I like to call this a piece, but on the brick. 417 00:22:53,000 --> 00:22:55,000 Well, I guess I should make another one. 418 00:22:56,000 --> 00:23:03,000 Tori's leading the way, and it's not long before both Carrie and Grant have taken on the concrete polisher too. 419 00:23:07,000 --> 00:23:09,000 Yeah, I really like working on TV. 420 00:23:09,000 --> 00:23:13,000 I think it's the glamour, the clothes. 421 00:23:16,000 --> 00:23:18,000 It makes me feel really pretty. 422 00:23:19,000 --> 00:23:24,000 And although the softest rock, the sandstone, is easier to carve, it has its drawbacks too. 423 00:23:24,000 --> 00:23:31,000 The thing is, because it's so soft, it won't probably break on impact, but my question is, is it going to survive the launch? 424 00:23:32,000 --> 00:23:36,000 After a lot of hard work and hours of grinding, our cannonballs are done, and they look great. 425 00:23:36,000 --> 00:23:40,000 We got a sandstone, we got a limestone, and we got a granite cannonball. 426 00:23:40,000 --> 00:23:47,000 Now all we need to do is load them into a real cannon, fire them at a castle wall, and see how they compare to an iron cannonball. 427 00:23:49,000 --> 00:23:58,000 According to this myth, by using a mattress to break your fall, you could hit the sack and escape. 428 00:23:58,000 --> 00:24:01,000 But in reality, not so much. 429 00:24:01,000 --> 00:24:04,000 It would be even more dead than the first one. 430 00:24:04,000 --> 00:24:05,000 Is that a medical term? 431 00:24:05,000 --> 00:24:06,000 It is now. 432 00:24:06,000 --> 00:24:15,000 Having established that jumping off a three-story building, either directly in the four and a half feet of water, or onto a mattress in that water, is potentially lethal. 433 00:24:15,000 --> 00:24:21,000 It begs the question, what exactly would it take to jump safely from that height and into that depth of water? 434 00:24:21,000 --> 00:24:31,000 So we've come here to the George F. Haynes International Swim Center in Santa Clara, California, where they have a magnificent pool and a platform that sits precisely three stories above that pool. 435 00:24:31,000 --> 00:24:38,000 And in a little while, Mr. James Franklin Heineman is going to find out what it would take to dive safely from this height. 436 00:24:38,000 --> 00:24:40,000 Better him than me. 437 00:24:40,000 --> 00:24:45,000 Given the jumping off a height like that, the wrong way into water could seriously hurt you. 438 00:24:45,000 --> 00:24:49,000 I'm not about to do anything fancy off of that without some training. 439 00:24:49,000 --> 00:24:52,000 Now luckily, we've got just the guy to do that. 440 00:24:52,000 --> 00:24:55,000 He taught us how to jump off of buildings. 441 00:24:55,000 --> 00:24:58,000 He's wrapped us in bubble wrap and thrown us off of buildings. 442 00:25:00,000 --> 00:25:01,000 That was intense. 443 00:25:01,000 --> 00:25:03,000 His name is Randy Lamb. 444 00:25:03,000 --> 00:25:09,000 He's a professional stuntman, and he is tasked today with taking Jamie right to the edge and throwing him off. 445 00:25:09,000 --> 00:25:15,000 Throwing him off and ensuring that his plunge is less than the four and a half foot depth of the myth. 446 00:25:15,000 --> 00:25:21,000 But first, what kind of depth does the average drop from 35 feet get? 447 00:25:23,000 --> 00:25:24,000 Wow. 448 00:25:29,000 --> 00:25:31,000 That was really cool. 449 00:25:33,000 --> 00:25:34,000 I'm screwed. 450 00:25:35,000 --> 00:25:40,000 Randy's jump carried him about two-thirds the depth of the pool, about 12 or 13 feet. 451 00:25:40,000 --> 00:25:47,000 It's a lot farther than four and a half feet, and I have to admit I'm really curious to see what kind of form his shallow dive takes. 452 00:25:47,000 --> 00:25:50,000 Well, that's what Jamie is about to find out. 453 00:25:50,000 --> 00:25:54,000 So Randy, what are my options as far as flattening out quickly without hurting myself? 454 00:25:54,000 --> 00:25:58,000 As you're coming down, you want to be right now in a very vertical position. 455 00:25:58,000 --> 00:26:03,000 Just as your feet touch the water, I want you to pull them in front of you, keep your legs straight, and pike right here. 456 00:26:03,000 --> 00:26:06,000 All right? This position here should scoop you up. 457 00:26:06,000 --> 00:26:07,000 Okay. 458 00:26:07,000 --> 00:26:13,000 It's a tactic that should slow Jamie down as he enters the water and make his angle of entry shallower. 459 00:26:13,000 --> 00:26:15,000 And how did that feel? 460 00:26:15,000 --> 00:26:16,000 It felt all right. 461 00:26:16,000 --> 00:26:22,000 But with a three-story dive into the mythical four and a half feet to come, practice is going to make perfect. 462 00:26:22,000 --> 00:26:26,000 So cue the music. We're going to need a training montage. 463 00:26:28,000 --> 00:26:29,000 Lay back, lay back. 464 00:26:30,000 --> 00:26:35,000 If there's one thing we've learned in acquiring techniques to deal with dangerous situations like this one, 465 00:26:35,000 --> 00:26:39,000 is that you need to work your way up incrementally. 466 00:26:39,000 --> 00:26:41,000 I feel like I just got spanked. 467 00:26:41,000 --> 00:26:47,000 You can't just take instructions that as you're jumping, you're going through in your head, 468 00:26:47,000 --> 00:26:50,000 do this, now I'm going to do this, and then I'm going to do this. 469 00:26:50,000 --> 00:26:53,000 It all happens so fast, it has to be automatic. 470 00:26:53,000 --> 00:26:58,000 And that's what I'm in the process of doing right now is burning that in so that I don't even have to think about it. 471 00:26:58,000 --> 00:27:00,000 Lay tight, lay tight. 472 00:27:00,000 --> 00:27:01,000 Nice. 473 00:27:01,000 --> 00:27:05,000 And before long, Jamie has graduated to the 15-foot height. 474 00:27:05,000 --> 00:27:12,000 He surveys the distance, estimates his trajectory, and he jumps. 475 00:27:14,000 --> 00:27:17,000 That was a really good one. Barely heard a sound. 476 00:27:17,000 --> 00:27:18,000 Nice work, sir. 477 00:27:18,000 --> 00:27:24,000 Taking it drop by drop, Jamie's gotten his depth to five and a half feet. 478 00:27:24,000 --> 00:27:27,000 And his technique is getting so good that soon. 479 00:27:27,000 --> 00:27:29,000 That was your best one yet. 480 00:27:29,000 --> 00:27:32,000 I think you should move up and start practicing from a little bit higher to get comfortable up there. 481 00:27:32,000 --> 00:27:33,000 All right. 482 00:27:36,000 --> 00:27:39,000 As Jamie practices and moves to ever higher diving platforms, 483 00:27:39,000 --> 00:27:45,000 there's actually a quite interesting reason for which he might get better at decelerating faster as he goes higher. 484 00:27:45,000 --> 00:27:50,000 Water resists an impact in direct proportion to the speed of the impact. 485 00:27:50,000 --> 00:27:54,000 Kerry Grant and Torrey investigated this in their Water vs. Concrete episode. 486 00:27:54,000 --> 00:27:56,000 Block belly, block in. 487 00:27:56,000 --> 00:27:58,000 And it definitely applies here. 488 00:27:58,000 --> 00:28:04,000 So while he did pretty good at 15 feet, he might be able to actually hit his target at 35. 489 00:28:07,000 --> 00:28:09,000 That one was fantastic. 490 00:28:09,000 --> 00:28:12,000 That was as good as your best jump from 15 feet. 491 00:28:12,000 --> 00:28:16,000 Yeah, well, I mean, if that one was as good as I got from 15 feet, 492 00:28:16,000 --> 00:28:19,000 maybe I'll be able to do just as good from 35. 493 00:28:19,000 --> 00:28:21,000 Yeah, exactly. 494 00:28:21,000 --> 00:28:23,000 Nothing to do but keep practicing. 495 00:28:24,000 --> 00:28:27,000 And after a day of jumping in with both feet, 496 00:28:27,000 --> 00:28:31,000 that 35 foot fall will have to wait until tomorrow. 497 00:28:31,000 --> 00:28:33,000 So how are you feeling after all that? 498 00:28:33,000 --> 00:28:35,000 Ow. 499 00:28:35,000 --> 00:28:37,000 Sorry about that. 500 00:28:37,000 --> 00:28:39,000 Don't try anything you've seen on the show at home. 501 00:28:39,000 --> 00:28:41,000 We are what you're called experts. 502 00:28:42,000 --> 00:28:50,000 We've come out to a quarry in Angel's Camp so we can test the myth of the stone cannonball. 503 00:28:50,000 --> 00:28:53,000 It was said that these were not only as effective as iron cannonballs, 504 00:28:53,000 --> 00:28:57,000 but they exploded upon impact, which means they couldn't be fired back. 505 00:28:57,000 --> 00:28:59,000 Here comes the cannon. 506 00:29:00,000 --> 00:29:01,000 Look at O's moment. 507 00:29:01,000 --> 00:29:03,000 It's ready for action. 508 00:29:03,000 --> 00:29:06,000 Now, since we've never shot one of these stone cannonballs, 509 00:29:06,000 --> 00:29:07,000 we're going to fire this cannon remotely. 510 00:29:07,000 --> 00:29:10,000 So what I'm doing right now is I'm rolling out 500 feet of wire 511 00:29:10,000 --> 00:29:15,000 so that we can launch this thing from behind this pile of rocks with an electric match. 512 00:29:15,000 --> 00:29:18,000 And that's not the only precaution they're taking. 513 00:29:18,000 --> 00:29:23,000 For our stone cannonball experiment, we have water barrels that are stacked too high, three deep. 514 00:29:23,000 --> 00:29:25,000 Behind that, a soft sand berm. 515 00:29:25,000 --> 00:29:31,000 And behind that, we are way out in the middle of nowhere in a rock quarry with walls that are 300 feet tall. 516 00:29:31,000 --> 00:29:32,000 That's the setup. 517 00:29:32,000 --> 00:29:37,000 So now to calibrate their stone balls to the steel ball speed of their previous test. 518 00:29:38,000 --> 00:29:40,000 All right, we need to test the speed of the stone cannonballs. 519 00:29:40,000 --> 00:29:42,000 So what do you say we start with the sandstone? 520 00:29:42,000 --> 00:29:43,000 That sounds good. 521 00:29:43,000 --> 00:29:47,000 Now remember, we're trying to get 1200 feet per second just like the steel ball. 522 00:29:47,000 --> 00:29:51,000 You guys, let me just point out, this is probably the first time in 400 years 523 00:29:51,000 --> 00:29:53,000 somebody has fired a stone cannonball. 524 00:29:53,000 --> 00:29:54,000 This is going to be cool. 525 00:29:54,000 --> 00:29:56,000 Cool and tricky. 526 00:29:56,000 --> 00:30:00,000 Since with three different masses to get all the balls traveling at the same velocity, 527 00:30:00,000 --> 00:30:02,000 they're going to need a formula. 528 00:30:02,000 --> 00:30:08,000 So we need to know how much black powder to use to get our stone cannonballs to have the same velocity as the steel balls. 529 00:30:08,000 --> 00:30:11,000 Now we plug in their weights to a basic formula based on kinetic energy. 530 00:30:11,000 --> 00:30:12,000 This is what we get. 531 00:30:12,000 --> 00:30:17,000 Our 1.3 pound sandstone ball needs 0.3 pounds of black powder. 532 00:30:17,000 --> 00:30:24,000 Now the 1.4 pound limestone ball needs just a little bit more with 0.33 pounds of black powder. 533 00:30:24,000 --> 00:30:29,000 And finally our granite ball, which is 1.7 pounds, needs 0.36 pounds of black powder. 534 00:30:29,000 --> 00:30:31,000 Just a little bit more than that. 535 00:30:31,000 --> 00:30:32,000 That's the theory. 536 00:30:32,000 --> 00:30:34,000 But will those numbers work in practice? 537 00:30:34,000 --> 00:30:37,000 And will the cannonballs survive the launch? 538 00:30:37,000 --> 00:30:41,000 First up to find its black powder butter zone is the sandstone. 539 00:30:41,000 --> 00:30:45,000 K, 0.3 of a pound, which is 5 ounces. 540 00:30:45,000 --> 00:30:51,000 And to protect old Moses Barrel, the sandstone is packaged inside a cardboard canister. 541 00:30:52,000 --> 00:30:54,000 We are loaded. 542 00:30:56,000 --> 00:30:59,000 Let's see what sandstone is made of. 543 00:30:59,000 --> 00:31:00,000 Sandstone. 544 00:31:00,000 --> 00:31:01,000 What? 545 00:31:01,000 --> 00:31:02,000 That's what it's made of. 546 00:31:02,000 --> 00:31:03,000 Alright, here we go. 547 00:31:03,000 --> 00:31:09,000 This is sandstone cannonball speed test in 3, 2, 1. 548 00:31:14,000 --> 00:31:16,000 Love that echo in the canyon. 549 00:31:16,000 --> 00:31:17,000 Let's go see what it did. 550 00:31:17,000 --> 00:31:18,000 Alright. 551 00:31:18,000 --> 00:31:20,000 Clearly it rocked it. 552 00:31:21,000 --> 00:31:25,000 We got our sandstone cannonball to fire at approximately 1200 feet per second. 553 00:31:25,000 --> 00:31:27,000 Now that's the butter zone to match our steel cannonball. 554 00:31:27,000 --> 00:31:30,000 Now we're moving on to limestone. 555 00:31:30,000 --> 00:31:35,000 According to the formula, it should take a third of a pound to get the limestone flying. 556 00:31:35,000 --> 00:31:36,000 Got it. 557 00:31:36,000 --> 00:31:41,000 Alright, this is limestone speed test in 3, 2, 1. 558 00:31:45,000 --> 00:31:48,000 And not only did that have enough oaf to knock the gauge over, 559 00:31:48,000 --> 00:31:52,000 it was also enough oaf to match the steel cannonball speed. 560 00:31:52,000 --> 00:31:56,000 So we managed to get our limestone cannonball to 1200 feet per second. 561 00:31:56,000 --> 00:32:00,000 That means limestone is good to go for attack. 562 00:32:00,000 --> 00:32:06,000 The final rock to take aim is the hardest and heaviest stone cannonball, the granite, 563 00:32:06,000 --> 00:32:09,000 which means it needs the most black powder. 564 00:32:09,000 --> 00:32:10,000 Clear front. 565 00:32:10,000 --> 00:32:11,000 Alright, here we go. 566 00:32:11,000 --> 00:32:15,000 This is granite cannonball speed test in 3, 2, 1. 567 00:32:19,000 --> 00:32:23,000 Hey, look, it's still in attack. 568 00:32:23,000 --> 00:32:24,000 And washed. 569 00:32:24,000 --> 00:32:27,000 Alright, let's check the high speed and see how fast it went. 570 00:32:27,000 --> 00:32:33,000 So we just fired the granite cannonball and we reached 1159 feet per second. 571 00:32:33,000 --> 00:32:35,000 We are in the range that we're looking for. 572 00:32:35,000 --> 00:32:37,000 Now it's time to fire into a castle. 573 00:32:39,000 --> 00:32:43,000 So all three balls are up to speed and ready to rock. 574 00:32:43,000 --> 00:32:46,000 Just as soon as the mythbusters can find a castle. 575 00:32:49,000 --> 00:32:52,000 That is the most disturbing castle I've ever seen. 576 00:32:52,000 --> 00:32:53,000 Right after the break. 577 00:32:53,000 --> 00:32:54,000 Time for battle. 578 00:32:54,000 --> 00:32:59,000 It's the balls to the wall finale of the stone cannonball saga. 579 00:32:59,000 --> 00:33:01,000 In 3, 2, 1. 580 00:33:19,000 --> 00:33:30,000 This thing, the Sndaver, opens up whole new vistas for us in terms of assessing physical damage from our experiment. 581 00:33:30,000 --> 00:33:33,000 I'm only just starting to grasp how awesome this is. 582 00:33:48,000 --> 00:33:50,000 And we pretty much busted that outright. 583 00:33:50,000 --> 00:33:51,000 So he'd be even more dead. 584 00:33:51,000 --> 00:33:57,000 We are now investigating whether there is any technique at all that can help you safely make such a jump. 585 00:33:57,000 --> 00:34:03,000 Yep, and yesterday Jamie spent the day getting in touch with his inner aquatic mammal. 586 00:34:03,000 --> 00:34:06,000 But it's taken its toll. 587 00:34:06,000 --> 00:34:11,000 I took a lot of jumps yesterday and by the end of the day I was in a lot of pain. 588 00:34:11,000 --> 00:34:13,000 This morning I was still in a lot of pain. 589 00:34:13,000 --> 00:34:18,000 So I decided to call our orthopedic surgeon and see if there was anything I should be concerned about. 590 00:34:18,000 --> 00:34:22,000 And he said that, well, not really as far as the tissue damage or anything like that, 591 00:34:22,000 --> 00:34:28,000 but that is a warning sign that I'm taking a heck of a lot of impact in my lower back. 592 00:34:28,000 --> 00:34:30,000 And that's an area I really don't want to mess with. 593 00:34:30,000 --> 00:34:33,000 So I'm handing it over to our stunt guy, Randy. 594 00:34:33,000 --> 00:34:36,000 Jamie's back is telling him to back out. 595 00:34:36,000 --> 00:34:38,000 So cue the stuntman. 596 00:34:38,000 --> 00:34:39,000 Alright, Randy. 597 00:34:39,000 --> 00:34:40,000 It's all down to you, sir. 598 00:34:40,000 --> 00:34:43,000 35 feet into 4 and a half. 599 00:34:43,000 --> 00:34:48,000 Okay, sure. 600 00:34:48,000 --> 00:34:50,000 I wasn't supposed to jump right there. 601 00:34:50,000 --> 00:34:51,000 I didn't think so. 602 00:34:51,000 --> 00:34:53,000 Full marks for enthusiasm. 603 00:34:53,000 --> 00:34:55,000 Full marks for enthusiasm. 604 00:34:55,000 --> 00:35:00,000 And it's clear from this impromptu plunge that he has the technique down. 605 00:35:00,000 --> 00:35:05,000 But this time it's for real and it's a long way from the top with a very shallow landing. 606 00:35:05,000 --> 00:35:09,000 Will Randy jump and come up trumps? 607 00:35:09,000 --> 00:35:13,000 Alright, here goes the scoop in 3, 2, 1. 608 00:35:20,000 --> 00:35:21,000 Wow! 609 00:35:21,000 --> 00:35:23,000 Dude, I think that might have been survivable. 610 00:35:23,000 --> 00:35:25,000 Hold on, let's check this out. 611 00:35:26,000 --> 00:35:27,000 Dude! 612 00:35:27,000 --> 00:35:28,000 He would have survived that. 613 00:35:28,000 --> 00:35:29,000 I think you're totally right. 614 00:35:29,000 --> 00:35:30,000 He would have survived that. 615 00:35:30,000 --> 00:35:33,000 He dipped a few inches below the line, but he's so decelerated. 616 00:35:33,000 --> 00:35:34,000 That's just a bump on the bottom. 617 00:35:34,000 --> 00:35:35,000 That's not an injury. 618 00:35:35,000 --> 00:35:36,000 Yeah. 619 00:35:36,000 --> 00:35:37,000 Randy's the man. 620 00:35:37,000 --> 00:35:38,000 Yeah. 621 00:35:38,000 --> 00:35:41,000 Randy's the man because he's gone one up on the myth. 622 00:35:41,000 --> 00:35:46,000 Not only did he take the fall from the same height into the same shallow depth, 623 00:35:46,000 --> 00:35:48,000 he made it out injury-free. 624 00:35:49,000 --> 00:35:50,000 Randy, that was beautiful. 625 00:35:50,000 --> 00:35:51,000 It's how I feel. 626 00:35:51,000 --> 00:35:54,000 It's not as bad as I thought it was going to be, 627 00:35:54,000 --> 00:35:57,000 but I can understand why Jamie is tender today. 628 00:35:59,000 --> 00:36:01,000 It's certainly not a painless way to land, 629 00:36:01,000 --> 00:36:05,000 but it sure beats a shattered pelvis and a broken spine. 630 00:36:05,000 --> 00:36:08,000 Randy has successfully jumped shallow enough 631 00:36:08,000 --> 00:36:12,000 that he would have survived a 35-foot jump into 4 1⁄2-foot deep water. 632 00:36:12,000 --> 00:36:15,000 I have to admit, everything that we tested so far in this story, 633 00:36:15,000 --> 00:36:18,000 I was not giving good odds for him being able to do that, 634 00:36:18,000 --> 00:36:22,000 but I guess 30 years of experience as a stuntman counts for something. 635 00:36:22,000 --> 00:36:23,000 So how do you want to call this? 636 00:36:23,000 --> 00:36:25,000 Well, as far as the clip we started with goes, 637 00:36:25,000 --> 00:36:26,000 everything that they describe, 638 00:36:26,000 --> 00:36:28,000 whether jumping into the pool straight 639 00:36:28,000 --> 00:36:31,000 or jumping into the pool with a mattress on top of it, 640 00:36:31,000 --> 00:36:34,000 is either super dangerous or even potentially lethal. 641 00:36:34,000 --> 00:36:35,000 Yeah, it's busted. 642 00:36:35,000 --> 00:36:37,000 Not to say they couldn't be done, though. 643 00:36:37,000 --> 00:36:40,000 At least if you've got decades of experience as a stunt person. 644 00:36:40,000 --> 00:36:41,000 Exactly right. 645 00:36:41,000 --> 00:36:43,000 So don't try this at home. 646 00:36:43,000 --> 00:36:44,000 We didn't. 647 00:36:47,000 --> 00:36:48,000 My butt still hurts. 648 00:36:57,000 --> 00:36:58,000 Castles. 649 00:36:58,000 --> 00:37:01,000 They're big, old, and made of stone. 650 00:37:01,000 --> 00:37:03,000 And while you'll find plenty in Europe, 651 00:37:03,000 --> 00:37:05,000 in the States, they're pretty rare. 652 00:37:08,000 --> 00:37:11,000 So the Mythbusters are getting creatively medieval. 653 00:37:11,000 --> 00:37:14,000 This ought to keep the savages out. 654 00:37:14,000 --> 00:37:16,000 And making their own. 655 00:37:17,000 --> 00:37:19,000 Now, I know this might seem like overkill, 656 00:37:19,000 --> 00:37:22,000 having two pallets of solid concrete bricks. 657 00:37:22,000 --> 00:37:24,000 Each of the bricks weighing 80 pounds, 658 00:37:24,000 --> 00:37:25,000 but it's not an exaggeration. 659 00:37:25,000 --> 00:37:28,000 An actual rampart of a castle, which is the barrier, 660 00:37:28,000 --> 00:37:31,000 has been known to be six feet to 18 feet thick. 661 00:37:31,000 --> 00:37:34,000 And what we have here is an eight-foot thickness. 662 00:37:34,000 --> 00:37:36,000 So this is going to give us a good representation 663 00:37:36,000 --> 00:37:39,000 of what that rampart of the castle would be. 664 00:37:39,000 --> 00:37:41,000 A great representation. 665 00:37:41,000 --> 00:37:43,000 And with the sturdy concrete ramparts in place, 666 00:37:43,000 --> 00:37:46,000 each Mythbuster has a different idea 667 00:37:46,000 --> 00:37:48,000 on what constitutes a castle. 668 00:37:48,000 --> 00:37:50,000 No interdraffids! 669 00:37:50,000 --> 00:37:52,000 No, we will never surrender. 670 00:37:52,000 --> 00:37:54,000 Then we will attack! 671 00:37:55,000 --> 00:37:57,000 Don't worry, they're shooting rock-and-rolls. 672 00:37:57,000 --> 00:37:59,000 I'm not scared of those. 673 00:37:59,000 --> 00:38:03,000 That's three castles to face off against three stone cannonballs. 674 00:38:03,000 --> 00:38:05,000 But how will they know if the rock balls 675 00:38:05,000 --> 00:38:07,000 are as effective as a steel ball? 676 00:38:07,000 --> 00:38:10,000 Well, with an old Moses comparison for starters. 677 00:38:10,000 --> 00:38:13,000 All right, here we go. This is control test. 678 00:38:13,000 --> 00:38:16,000 Steel cannonball with one pound of black powder. 679 00:38:16,000 --> 00:38:19,000 In three, two, one. 680 00:38:19,000 --> 00:38:22,000 Oh! 681 00:38:22,000 --> 00:38:27,000 There's no doubt that the metal cannonball 682 00:38:27,000 --> 00:38:30,000 jolted the concrete as it penetrated two layers 683 00:38:30,000 --> 00:38:32,000 and shattered four bricks. 684 00:38:32,000 --> 00:38:35,000 That is one effective cannonball! 685 00:38:35,000 --> 00:38:37,000 There it is. 686 00:38:37,000 --> 00:38:39,000 There it is. 687 00:38:39,000 --> 00:38:41,000 All right, let's see how the steel cannonballs do. 688 00:38:41,000 --> 00:38:43,000 I see why they use cannons. 689 00:38:43,000 --> 00:38:45,000 Now that they've seen what steel can do, 690 00:38:45,000 --> 00:38:47,000 it's time to test this myth. 691 00:38:47,000 --> 00:38:50,000 How will the metal cannonballs match the metal 692 00:38:50,000 --> 00:38:52,000 and break up on impact? 693 00:38:52,000 --> 00:38:54,000 Well, first, they're starting with the sandstone. 694 00:38:54,000 --> 00:38:56,000 Okay, ready, Harry? 695 00:38:56,000 --> 00:38:58,000 With enough black powder to fire the ball 696 00:38:58,000 --> 00:39:00,000 at the set speed of 1,200 feet per second. 697 00:39:00,000 --> 00:39:02,000 Loaded. 698 00:39:02,000 --> 00:39:04,000 The ball is in old Moses' court now. 699 00:39:04,000 --> 00:39:07,000 This is sandstone versus the castle. 700 00:39:07,000 --> 00:39:10,000 In three, two, one. 701 00:39:10,000 --> 00:39:12,000 Oh, that sounded like damage to me. 702 00:39:12,000 --> 00:39:14,000 That was a great boom. 703 00:39:14,000 --> 00:39:16,000 Awesome! 704 00:39:16,000 --> 00:39:18,000 That did some serious damage. 705 00:39:18,000 --> 00:39:20,000 And it shattered, meaning there's nothing to send back. 706 00:39:20,000 --> 00:39:22,000 But even though it penetrated one layer 707 00:39:22,000 --> 00:39:24,000 and damaged two bricks, 708 00:39:24,000 --> 00:39:26,000 the softer sandstone ball couldn't match 709 00:39:26,000 --> 00:39:28,000 the damage of the metal ball. 710 00:39:28,000 --> 00:39:32,000 So next, it's limestone versus Carrie's dream castle. 711 00:39:32,000 --> 00:39:36,000 That is probably the most adorable castle I've ever seen. 712 00:39:36,000 --> 00:39:39,000 Next up, we're going to use the limestone ball 713 00:39:39,000 --> 00:39:41,000 against Carrie's castle. 714 00:39:41,000 --> 00:39:43,000 Now, looking at this ball, 715 00:39:43,000 --> 00:39:45,000 it's probably going to do really well on damage, 716 00:39:45,000 --> 00:39:47,000 and it's so poor. 717 00:39:47,000 --> 00:39:49,000 It's got all these pockets. 718 00:39:49,000 --> 00:39:51,000 I think it's going to shatter. 719 00:39:51,000 --> 00:39:53,000 I think this thing's going to be great. 720 00:39:53,000 --> 00:39:55,000 Good luck. 721 00:39:55,000 --> 00:39:57,000 In three, two, one. 722 00:39:57,000 --> 00:39:59,000 That sounded like a really good damage chest to me. 723 00:39:59,000 --> 00:40:01,000 It certainly was, 724 00:40:01,000 --> 00:40:04,000 because the limestone was hard enough to destroy three bricks, 725 00:40:04,000 --> 00:40:07,000 closer to the damage the steel ball caused. 726 00:40:07,000 --> 00:40:10,000 And more importantly, it disintegrated on impact. 727 00:40:10,000 --> 00:40:12,000 Look at that! Oh, my gosh! 728 00:40:12,000 --> 00:40:14,000 That works great! 729 00:40:14,000 --> 00:40:16,000 The limestone is incredible! 730 00:40:16,000 --> 00:40:18,000 It's got shattering. 731 00:40:18,000 --> 00:40:20,000 You know, I'm a little upset 732 00:40:20,000 --> 00:40:22,000 that Carrie's dream castle 733 00:40:22,000 --> 00:40:25,000 with the giant orange princess is destroyed. 734 00:40:25,000 --> 00:40:27,000 But I mean, it was so worth it with these results. 735 00:40:27,000 --> 00:40:30,000 I mean, we destroyed a layer of brick 736 00:40:30,000 --> 00:40:32,000 and the ball crumbled. 737 00:40:32,000 --> 00:40:35,000 This is looking so good for our myth right now. 738 00:40:35,000 --> 00:40:37,000 Looking good for the myth, 739 00:40:37,000 --> 00:40:39,000 but the final stone is still not ready. 740 00:40:39,000 --> 00:40:41,000 But the final stone cannonball 741 00:40:41,000 --> 00:40:43,000 is the most rock solid of all. 742 00:40:43,000 --> 00:40:45,000 Time for battle. 743 00:40:45,000 --> 00:40:48,000 The granite is a lot harder than the previous rocks. 744 00:40:48,000 --> 00:40:50,000 And while it may do some damage, 745 00:40:50,000 --> 00:40:54,000 the question is, will it shatter as the myth suggests? 746 00:40:54,000 --> 00:40:56,000 Granite cannonball into the castle. 747 00:40:56,000 --> 00:40:59,000 In three, two, one. 748 00:41:02,000 --> 00:41:04,000 That sounded like such a smack! 749 00:41:04,000 --> 00:41:06,000 Sounds like success, man! 750 00:41:06,000 --> 00:41:08,000 All right, let's see what it did. 751 00:41:08,000 --> 00:41:11,000 Definitely scored the damage category. 752 00:41:11,000 --> 00:41:13,000 And look what's left of the cannonball. 753 00:41:13,000 --> 00:41:15,000 I mean, we did some serious damage 754 00:41:15,000 --> 00:41:17,000 almost as much as the steel cannonball 755 00:41:17,000 --> 00:41:19,000 and it disintegrated. 756 00:41:21,000 --> 00:41:24,000 Now, I've spent hours sculpting this cannonball 757 00:41:24,000 --> 00:41:26,000 and a lot of effort went into building this castle. 758 00:41:26,000 --> 00:41:29,000 But I've never been happier saying two things I've built destroyed, 759 00:41:29,000 --> 00:41:31,000 especially with these results. 760 00:41:31,000 --> 00:41:34,000 I mean, the granite cannonball did the same damage 761 00:41:34,000 --> 00:41:36,000 as the steel cannonball. 762 00:41:36,000 --> 00:41:38,000 The steel cannonball you could have shot back. 763 00:41:38,000 --> 00:41:40,000 The granite cannonball destroyed. 764 00:41:40,000 --> 00:41:42,000 This one's plausible.