1 00:00:00,000 --> 00:00:17,700 On this electrifying episode of Mythbusters, Adam and Jamie take a humble water pistol 2 00:00:17,700 --> 00:00:20,180 to stunning heights. 3 00:00:20,180 --> 00:00:24,740 Can a water-powered stun gun really paralyze a perpetrator? 4 00:00:24,740 --> 00:00:29,720 Meanwhile, Carrie, Tori and Grant tow two myths over the coals. 5 00:00:29,720 --> 00:00:34,960 First, fire walking, mythical mysticism, or scientific certainty. 6 00:00:34,960 --> 00:00:40,260 Then flinging a fire extinguisher onto flames. 7 00:00:40,260 --> 00:00:44,180 Can it really snuff out a fire? 8 00:00:51,680 --> 00:00:53,180 Who are the Mythbusters? 9 00:00:54,140 --> 00:00:55,140 Adam Savage 10 00:00:55,140 --> 00:00:57,340 Get to the top of it! 11 00:00:57,340 --> 00:00:58,340 And Jamie Heinemann 12 00:00:58,340 --> 00:01:01,620 One in doubt, C4. 13 00:01:01,620 --> 00:01:05,300 Between them more than 30 years of special effects experience. 14 00:01:05,300 --> 00:01:06,300 That was it. 15 00:01:06,300 --> 00:01:07,300 Ha ha! 16 00:01:07,300 --> 00:01:09,660 Joining them, Tori Bellachy 17 00:01:09,660 --> 00:01:12,540 Who's gonna lose their teeth today? 18 00:01:12,540 --> 00:01:13,540 Grant Imahara 19 00:01:13,540 --> 00:01:16,380 There's one giant leap for myth kind. 20 00:01:16,380 --> 00:01:17,380 And Carrie Byron 21 00:01:17,380 --> 00:01:21,460 I went from totally optimistic to a little sketchy. 22 00:01:21,460 --> 00:01:28,460 They don't just tell the myths, they put them to the test. 23 00:01:28,460 --> 00:01:40,060 First up, something truly shocking. 24 00:01:40,060 --> 00:01:43,220 You know, I'm one of the few people in the world that knows right now that you're smiling. 25 00:01:43,220 --> 00:01:44,220 What's a smile about? 26 00:01:44,220 --> 00:01:46,860 I've got a new myth and I'm excited about it. 27 00:01:46,860 --> 00:01:48,660 Don't hold back, what is it? 28 00:01:48,660 --> 00:01:54,420 Okay, well rumor has it that secret agencies from countries around the world are developing 29 00:01:54,420 --> 00:01:56,780 a water-based stun gun. 30 00:01:56,780 --> 00:01:59,500 A water-based stun gun? 31 00:01:59,500 --> 00:02:00,500 Exactly. 32 00:02:00,500 --> 00:02:03,540 And it's our job to determine whether it's feasible or not. 33 00:02:03,540 --> 00:02:04,700 That is cool! 34 00:02:04,700 --> 00:02:05,860 You know what I'm talking about. 35 00:02:05,860 --> 00:02:06,860 I do! 36 00:02:06,860 --> 00:02:11,700 Stun guns are stunningly effective, but hard to reload. 37 00:02:11,700 --> 00:02:14,980 So that's where the mythical water stun gun comes in. 38 00:02:14,980 --> 00:02:19,620 But is this watery weapon really the favorite gadget of spies around the world? 39 00:02:19,620 --> 00:02:21,900 So you're the one that loves the myth. 40 00:02:21,900 --> 00:02:22,900 What's your plan? 41 00:02:22,900 --> 00:02:26,780 Well, the first thing we need to do is get a commercially available stun gun. 42 00:02:26,780 --> 00:02:28,500 And see what we can learn from it. 43 00:02:28,500 --> 00:02:29,500 Exactly. 44 00:02:29,500 --> 00:02:33,460 And then we'll make a water shooting gun and hook up an electrical source to it and see 45 00:02:33,460 --> 00:02:35,860 if we can shock the heck out of somebody. 46 00:02:35,860 --> 00:02:38,780 As long as that someone isn't me, I love this plan. 47 00:02:38,780 --> 00:02:40,420 And then we'll go from there. 48 00:02:40,420 --> 00:02:42,420 Perfect, let's do it. 49 00:02:42,420 --> 00:02:47,060 So first up, they're going to assess the non-water-using real deal. 50 00:02:47,060 --> 00:02:50,540 And before you can say, don't stun gun me, bro. 51 00:02:50,540 --> 00:02:51,540 Wow! 52 00:02:51,540 --> 00:02:53,260 I don't like the look of that. 53 00:02:53,260 --> 00:02:55,020 That looks like it would hurt. 54 00:02:55,020 --> 00:02:59,500 Because it looks so hurtful, Adam's taking no chances. 55 00:02:59,500 --> 00:03:02,020 We're obviously no strangers to being shocked on this show. 56 00:03:02,020 --> 00:03:03,420 Literally and figuratively. 57 00:03:03,420 --> 00:03:08,180 During your production of Baghdad, Paddy, Tori got shocked. 58 00:03:08,180 --> 00:03:10,180 Scotty got shocked. 59 00:03:11,180 --> 00:03:12,700 Oh my God! 60 00:03:12,700 --> 00:03:16,180 And I unwittingly got seriously shocked. 61 00:03:18,180 --> 00:03:22,660 So with this stun gun, honestly, none of us feel comfortable either getting shot by 62 00:03:22,660 --> 00:03:25,940 it or seeing anybody else get shot by it. 63 00:03:25,940 --> 00:03:30,060 So in this case, this dude here is our stand in target. 64 00:03:30,060 --> 00:03:32,060 Three, two, one. 65 00:03:34,060 --> 00:03:38,500 Dude, that is harsh. 66 00:03:38,500 --> 00:03:40,500 I hit him in the face. 67 00:03:40,500 --> 00:03:45,740 It turns out that a regular electric stun gun has wires that deliver a massive 50,000 68 00:03:45,740 --> 00:03:48,700 volts through two of these barbed spikes. 69 00:03:48,700 --> 00:03:56,420 On contact with a bad guy, the volts instantly drop down to 5,000 causing neuromuscular incapacitation. 70 00:03:56,420 --> 00:03:58,100 And that simply means... 71 00:03:58,100 --> 00:04:02,220 When you get hit by one of these things, you lose all physical control. 72 00:04:02,220 --> 00:04:07,660 Your muscles, the nervous system and everything just go haywire and you can't deal with it. 73 00:04:07,820 --> 00:04:11,500 Here at the Mythbusters Electrolysis Clinic, we use the latest techniques to make sure 74 00:04:11,500 --> 00:04:14,500 those pesky hairs never come back. 75 00:04:14,500 --> 00:04:17,740 So that's what the commercial stun gun can do. 76 00:04:17,740 --> 00:04:19,780 It's got a range of 15 feet. 77 00:04:19,780 --> 00:04:26,460 It puts out an initial charge of 50,000 volts, which drops to 5,000 volts on contact, causing 78 00:04:26,460 --> 00:04:28,460 neuromuscular incapacitation. 79 00:04:28,460 --> 00:04:33,060 But can an electrified water stream trump this trilogy? 80 00:04:33,060 --> 00:04:36,380 Well, just in time, a delivery's arrived by mail. 81 00:04:37,100 --> 00:04:39,100 Can a toy become a weapon? 82 00:04:39,100 --> 00:04:44,380 See, the thing here is that in order for the electricity to be communicated to our victim 83 00:04:44,380 --> 00:04:50,220 via water, the water stream has to be continuous, i.e. laminar for you engineers out there. 84 00:04:50,220 --> 00:04:52,980 So I've got an arm full of all the latest water shooting toys. 85 00:04:52,980 --> 00:04:57,740 We're going to shoot them on high-speed camera and see which ones give us the flow we like. 86 00:04:57,740 --> 00:05:00,260 First up, Adam sees red. 87 00:05:00,260 --> 00:05:05,620 By adding this dye, the water stream should be easier to analyze on the high-speed camera. 88 00:05:05,620 --> 00:05:10,420 This is the hard-earned man at his most vulnerable working with red food coloring. 89 00:05:10,420 --> 00:05:15,500 His white shirt could be desecrated at any moment. 90 00:05:15,500 --> 00:05:20,660 With these spotless scientists still intact, the water pistol testing can begin. 91 00:05:20,660 --> 00:05:22,660 From the football, coming up. 92 00:05:22,660 --> 00:05:24,660 One, two, three. 93 00:05:26,660 --> 00:05:30,460 You know, it looks like it's breaking up after just a couple feet or so. 94 00:05:30,460 --> 00:05:33,380 And that's something the high-speed clearly shows. 95 00:05:33,380 --> 00:05:38,140 The moment it's out the barrel, the water breaks up into hundreds of distinct droplets. 96 00:05:38,140 --> 00:05:41,820 A 15-foot continuous laminar stream, this ain't. 97 00:05:41,820 --> 00:05:44,540 Cue the two-chamber deluxe edition. 98 00:05:44,540 --> 00:05:47,380 I've got high hopes for this one, but we'll see. 99 00:05:51,140 --> 00:05:53,140 But that breaks up too. 100 00:05:53,140 --> 00:05:55,460 They pull a different pistol. 101 00:05:55,460 --> 00:05:56,740 And another. 102 00:05:56,740 --> 00:05:57,940 And another. 103 00:05:57,940 --> 00:05:59,660 But they all break up. 104 00:05:59,660 --> 00:06:03,420 Meaning there's no path for any charge to travel through. 105 00:06:03,420 --> 00:06:04,420 What's next? 106 00:06:04,420 --> 00:06:06,220 It's the last one. 107 00:06:06,220 --> 00:06:07,220 It doesn't get any simpler than that. 108 00:06:07,220 --> 00:06:08,740 It's just a big two. 109 00:06:08,740 --> 00:06:09,740 Yeah. 110 00:06:09,740 --> 00:06:10,740 Alright. 111 00:06:10,740 --> 00:06:11,740 Let's see what it does. 112 00:06:11,740 --> 00:06:15,900 With only one potential pistol to go, it's the myth's last throw of the dice. 113 00:06:15,900 --> 00:06:16,900 Alright, I'm ready. 114 00:06:16,900 --> 00:06:21,380 Like the others, this fun gun sure is a super soaker. 115 00:06:21,380 --> 00:06:22,380 But is it laminar? 116 00:06:22,380 --> 00:06:26,220 That is by far the best one we've tried yet. 117 00:06:27,180 --> 00:06:30,420 At last, the high speed gives it the thumbs up. 118 00:06:30,420 --> 00:06:33,820 A 15-foot totally continuous laminar flow. 119 00:06:33,820 --> 00:06:37,180 Now the question is, can we get electricity into this stream? 120 00:06:37,180 --> 00:06:38,700 Can we get it to a person? 121 00:06:38,700 --> 00:06:41,180 And when we do, is it a reasonable stun gun? 122 00:06:50,140 --> 00:06:52,740 Okay you guys, Adam and Jamie are doing a water myth. 123 00:06:52,740 --> 00:06:55,460 I think it's only appropriate that we do a fire myth. 124 00:06:55,460 --> 00:06:56,460 Yes! 125 00:06:56,460 --> 00:06:57,460 Time to let out the inner pyro. 126 00:06:57,460 --> 00:06:58,460 Fire! 127 00:06:58,460 --> 00:07:00,740 We've got two myths you can unleash it on. 128 00:07:00,740 --> 00:07:05,340 First, if you throw fire extinguisher into the fire, will it explode and extinguish the 129 00:07:05,340 --> 00:07:06,340 fire? 130 00:07:06,340 --> 00:07:07,340 Oh, that sounds dangerous. 131 00:07:07,340 --> 00:07:12,140 And second, we're going to be looking at walking on hot coals from a scientific perspective. 132 00:07:12,140 --> 00:07:13,140 Kick ass! 133 00:07:13,140 --> 00:07:14,940 I've always wanted to walk on fire. 134 00:07:14,940 --> 00:07:15,940 Alright. 135 00:07:15,940 --> 00:07:21,740 Hold your horses, Tori, because first up, it's fire meets fire extinguisher. 136 00:07:21,740 --> 00:07:24,740 According to our fans, the myth goes like this. 137 00:07:24,740 --> 00:07:30,060 If you fling a fire extinguisher into a fire, the heat builds up pressure in the tank, till 138 00:07:30,060 --> 00:07:31,060 it ruptures. 139 00:07:31,060 --> 00:07:36,540 Then, all the retardant spills out and douses the fire. 140 00:07:36,540 --> 00:07:37,540 Or does it? 141 00:07:37,540 --> 00:07:39,220 Okay, so how are we going to test this one? 142 00:07:39,220 --> 00:07:40,340 Well this one's pretty straightforward. 143 00:07:40,340 --> 00:07:44,020 I say we just build a giant fire, put the fire extinguisher in, see what happens. 144 00:07:44,020 --> 00:07:46,740 You know, there's not a lot of specifics to this myth, so let's take the three most 145 00:07:46,740 --> 00:07:48,420 common fire extinguishers with us. 146 00:07:48,420 --> 00:07:51,220 So that would be water, chemical foam, and carbon dioxide. 147 00:07:51,220 --> 00:07:53,100 It did your homework. 148 00:07:53,100 --> 00:07:54,600 Always do. 149 00:07:54,600 --> 00:08:04,620 And before the team further fan the flames of their pyromania, Tori of all people coordinates 150 00:08:04,620 --> 00:08:06,540 the experiment's safety features. 151 00:08:06,540 --> 00:08:11,100 What's going to happen is, I'm going to stick my fire extinguisher up here like this, so 152 00:08:11,100 --> 00:08:17,020 I hit the quick release, and the fire extinguisher goes in the fire. 153 00:08:17,020 --> 00:08:27,700 Now my next trick, I will vanish, and in there, I wave the magic wand. 154 00:08:27,700 --> 00:08:31,820 And apricada bra, they've arrived at their home away from home. 155 00:08:31,820 --> 00:08:35,980 We're here at the Alameda bomb range, and we're going to test the myth that if you throw a 156 00:08:35,980 --> 00:08:41,380 fire extinguisher into a fire, that will explode and extinguish the fire. 157 00:08:41,780 --> 00:08:48,180 Yep, the guys intend to put the blow torch on three everyday types of fire extinguisher. 158 00:08:48,180 --> 00:08:52,380 The myth that a fire extinguisher can fall into a fire and extinguish the entire fire 159 00:08:52,380 --> 00:08:53,380 is sort of general. 160 00:08:53,380 --> 00:08:58,140 It doesn't tell what kind of fire extinguisher, so we went and got every single kind we could. 161 00:08:58,140 --> 00:09:01,700 We have water, we have carbon dioxide, and we have chemical foam. 162 00:09:01,700 --> 00:09:03,460 One of these might work. 163 00:09:03,460 --> 00:09:08,740 First up for the slide ride into the fire is the most common type of fire extinguisher, 164 00:09:08,740 --> 00:09:09,740 CO2. 165 00:09:10,740 --> 00:09:18,900 And to understand why carbon dioxide is used as a fire retardant, here's fire physics 101. 166 00:09:18,900 --> 00:09:21,380 Fire needs three things in order to burn. 167 00:09:21,380 --> 00:09:23,780 Oxygen, fuel, and heat. 168 00:09:23,780 --> 00:09:27,220 Remove one and the chain reaction fizzles out. 169 00:09:27,220 --> 00:09:29,900 Which is exactly how CO2 works. 170 00:09:29,900 --> 00:09:35,540 Being heavier than air, it blankets the flames, replaces the oxygen, and the fire triangle 171 00:09:35,540 --> 00:09:36,540 collapses. 172 00:09:37,540 --> 00:09:44,060 But if you chuck a high pressure CO2 canister onto a fire, will it actually blow up and 173 00:09:44,060 --> 00:09:45,460 put the fire out? 174 00:09:45,460 --> 00:09:49,820 Now this one is under the most pressure, 800 psi, but it's probably the least likely to 175 00:09:49,820 --> 00:09:55,180 explode because it has a pressure release valve, and this prevents it from exploding. 176 00:09:55,180 --> 00:09:58,260 And carries cocksure, it'll be a fizzer. 177 00:09:58,260 --> 00:10:03,780 There is no way a fire extinguisher is going to fail so catastrophically that it explodes 178 00:10:03,780 --> 00:10:05,580 and then extinguishers the fire. 179 00:10:05,620 --> 00:10:11,140 Despite everyone's conviction, she and Grant hunker in the bunker, while Tori, with his 180 00:10:11,140 --> 00:10:14,580 pre-flight check complete, launches the CO2 tank. 181 00:10:14,580 --> 00:10:15,580 Ready? 182 00:10:15,580 --> 00:10:16,580 Ready? 183 00:10:18,580 --> 00:10:19,580 Run Tori! 184 00:10:20,580 --> 00:10:22,580 And then beats a hasty retreat. 185 00:10:24,580 --> 00:10:28,580 Down the hill, Tori only just has time to get his breath back. 186 00:10:29,580 --> 00:10:31,580 It sounds like something's hissing. 187 00:10:31,580 --> 00:10:33,580 Yeah, the safety valve released. 188 00:10:33,580 --> 00:10:39,580 Before the experiment fizzles out, as the pressure relief valve does its job. 189 00:10:39,580 --> 00:10:42,580 And 15 minutes later, it's empty. 190 00:10:42,580 --> 00:10:46,580 It's a good testament to the safety feature that's built in there. 191 00:10:46,580 --> 00:10:52,580 It's designed in an over-pressure situation such as raising temperature to vent all the 192 00:10:52,580 --> 00:10:53,580 CO2 safely. 193 00:10:53,580 --> 00:10:57,580 As far as the smith goes, it's busted for the CO2. 194 00:10:57,580 --> 00:10:59,580 Hold your flamin' horses, Grant. 195 00:10:59,580 --> 00:11:03,580 There are still two other types of extinguisher to test. 196 00:11:03,580 --> 00:11:04,580 Water and foam. 197 00:11:04,580 --> 00:11:09,580 And unlike the CO2, neither have the safety valve. 198 00:11:12,580 --> 00:11:18,580 Will flinging a fire extinguisher into a fire make it explode and put said fire out? 199 00:11:18,580 --> 00:11:23,580 Carrie, Grant and Tori have tried a CO2 canister, but it was a fizzer. 200 00:11:23,580 --> 00:11:25,580 So, how about a water extinguisher? 201 00:11:25,580 --> 00:11:27,580 It's a relatively simple system. 202 00:11:27,580 --> 00:11:32,580 This is a pressurized tank, and it's meant to have both liquid and gas in it. 203 00:11:32,580 --> 00:11:37,580 Put this in the fire, heats up the water, creates steam, increasing the pressure, 204 00:11:37,580 --> 00:11:40,580 and hopefully rupturing the tank. 205 00:11:41,580 --> 00:11:49,580 Unlike the CO2 tank that's stored at 800 psi, the water extinguisher is only under 100 psi. 206 00:11:49,580 --> 00:11:52,580 But it has no safety valve. 207 00:11:52,580 --> 00:11:56,580 And we know what happens when you add heat to a sealed water container. 208 00:11:59,580 --> 00:12:05,580 When Jamie and Adam did exploding water heater, they found that by having less water in their pressure vessel, 209 00:12:05,580 --> 00:12:09,580 they could generate more steam and thus a bigger explosion. 210 00:12:09,580 --> 00:12:12,580 But what we're after here is actually putting out the fire. 211 00:12:12,580 --> 00:12:15,580 So, I'm not going to empty the tank all the way down to the bottom. 212 00:12:15,580 --> 00:12:20,580 I'm just going to empty halfway, because we're still going to have some water to try and put out the fire with. 213 00:12:20,580 --> 00:12:26,580 So, while our twisted fire starters do their thing, let's get a prediction from Karen. 214 00:12:26,580 --> 00:12:29,580 Even if there's a rupture, I don't see the fire going out. 215 00:12:29,580 --> 00:12:35,580 This is a big fire, and I just don't think that there's going to be enough explosion to put it out completely. 216 00:12:35,580 --> 00:12:38,580 Alright, alright, so the fire is ready. 217 00:12:38,580 --> 00:12:40,580 So, this is water extinguisher. 218 00:12:40,580 --> 00:12:44,580 Alright, let's do it in 3, 2, 1. 219 00:12:45,580 --> 00:12:53,580 At over 1000 degrees, the burning coals rapidly convert the water inside the tank to steam under ever increasing pressure. 220 00:12:53,580 --> 00:12:57,580 And remember, there's no safety valve on this one. 221 00:12:57,580 --> 00:12:59,580 Hopefully we'll get a rupture. 222 00:12:59,580 --> 00:13:03,580 So, then water will go everywhere and put out the fire if the myth is true. 223 00:13:03,580 --> 00:13:05,580 If not, it's busted. 224 00:13:05,580 --> 00:13:06,580 Right. 225 00:13:06,580 --> 00:13:07,580 And 5 minutes in. 226 00:13:07,580 --> 00:13:09,580 Oh, look, it's ruptured. 227 00:13:09,580 --> 00:13:11,580 It's actually spraying out water right now. 228 00:13:11,580 --> 00:13:16,580 But the volume of water is insignificant compared to the size of the fire. 229 00:13:16,580 --> 00:13:18,580 No explosion, no fire going out. 230 00:13:18,580 --> 00:13:23,580 In fact, right now, that's not any more effective on the fire than, you know, like a tea kettle. 231 00:13:23,580 --> 00:13:24,580 Yeah. 232 00:13:24,580 --> 00:13:28,580 It's going to take something with a little more kick to snuff out this fire. 233 00:13:28,580 --> 00:13:32,580 But at the 9 minute mark, the canister has connections. 234 00:13:35,580 --> 00:13:36,580 That was cool! 235 00:13:36,580 --> 00:13:38,580 We almost took out the thermal camera. 236 00:13:38,580 --> 00:13:40,580 It actually came out of it. 237 00:13:40,580 --> 00:13:44,580 Obviously, the tank didn't vent the steam fast enough. 238 00:13:44,580 --> 00:13:47,580 When the pressure got too high, something had to give. 239 00:13:49,580 --> 00:13:54,580 Now, it didn't explode or put out the fire, but it did turn into a little rocket. 240 00:13:54,580 --> 00:13:59,580 And the whole can, like, flipped over and then went straight at us. 241 00:13:59,580 --> 00:14:02,580 But as far as the myth goes, so far this myth is looking busted. 242 00:14:02,580 --> 00:14:03,580 Yep. 243 00:14:03,580 --> 00:14:05,580 So far, that's two in the busted bin. 244 00:14:05,580 --> 00:14:09,580 But up next, the foam fire extinguishers in the firing line. 245 00:14:09,580 --> 00:14:11,580 Next up, chemical foam. 246 00:14:11,580 --> 00:14:13,580 Now, this is an aqueous film-forming foam. 247 00:14:13,580 --> 00:14:19,580 This is for claspy fires, which is flammable liquids, like solvents or oils or that sort of thing. 248 00:14:19,580 --> 00:14:24,580 Tanks rated for 300 psi, but just like water, they only fill it to 100 psi. 249 00:14:24,580 --> 00:14:27,580 We're going to throw this in the fire, see if it explodes and extinguishes it. 250 00:14:27,580 --> 00:14:32,580 And just like the water-filled tank, it has no safety valve. 251 00:14:32,580 --> 00:14:36,580 And of course, it goes without saying this shouldn't be attempted at home. 252 00:14:36,580 --> 00:14:39,580 I think the fill valve will be the first thing to go and will hiss out. 253 00:14:39,580 --> 00:14:44,580 And potentially, we could have another mini-missile. 254 00:14:44,580 --> 00:14:47,580 But as far as explosion goes, I don't think so. 255 00:14:47,580 --> 00:14:48,580 Here we go. 256 00:14:48,580 --> 00:14:52,580 Foam extinguisher in three, two, one. 257 00:14:52,580 --> 00:14:54,580 And in she goes. 258 00:14:54,580 --> 00:14:57,580 We got nine minutes before a flash one blew. 259 00:14:57,580 --> 00:14:59,580 You got to bring cards. 260 00:14:59,580 --> 00:15:01,580 Let's do a straight. 261 00:15:01,580 --> 00:15:03,580 Okay, you first. 262 00:15:03,580 --> 00:15:05,580 Two words. 263 00:15:06,580 --> 00:15:08,580 What did I get you? 264 00:15:08,580 --> 00:15:09,580 Sounds like... 265 00:15:09,580 --> 00:15:11,580 Woo! 266 00:15:11,580 --> 00:15:13,580 Yeah! 267 00:15:13,580 --> 00:15:14,580 Yeah! 268 00:15:14,580 --> 00:15:16,580 I can't put out the fire! 269 00:15:16,580 --> 00:15:17,580 It exploded! 270 00:15:17,580 --> 00:15:19,580 I can't put out the fire! 271 00:15:19,580 --> 00:15:21,580 Oh my god! 272 00:15:21,580 --> 00:15:23,580 It's raining! 273 00:15:23,580 --> 00:15:25,580 Oh, oh god! 274 00:15:25,580 --> 00:15:27,580 No! 275 00:15:31,580 --> 00:15:36,580 Yep, the foam-filled canister blew the fire into the next county. 276 00:15:39,580 --> 00:15:42,580 That was awesome! 277 00:15:42,580 --> 00:15:43,580 Where's the canister? 278 00:15:43,580 --> 00:15:46,580 I don't know, but it definitely exploded and it put out the fire. 279 00:15:46,580 --> 00:15:47,580 Wouldn't you agree? 280 00:15:47,580 --> 00:15:51,580 Oh yeah, I'd say there's still a few embers, but it is plausible at least. 281 00:15:51,580 --> 00:15:52,580 Oh, definitely plausible. 282 00:15:52,580 --> 00:15:53,580 Look at that. 283 00:15:53,580 --> 00:15:54,580 That could put out a fire. 284 00:15:54,580 --> 00:15:56,580 Alright, maybe this isn't the safest way to put out a fire, 285 00:15:56,580 --> 00:15:57,580 but it put out a fire. 286 00:15:57,580 --> 00:15:59,580 I love it when I'm wrong. 287 00:15:59,580 --> 00:16:00,580 I was totally wrong. 288 00:16:00,580 --> 00:16:02,580 I thought nothing was going to happen. 289 00:16:02,580 --> 00:16:04,580 This is an extremely exciting result for us, 290 00:16:04,580 --> 00:16:06,580 because first of all, it was a result that we were not expecting. 291 00:16:06,580 --> 00:16:08,580 All of us were totally wrong. 292 00:16:08,580 --> 00:16:12,580 The chemical extinguisher blew up, made this myth plausible. 293 00:16:12,580 --> 00:16:15,580 Yep, it blew out the fire alright, 294 00:16:15,580 --> 00:16:18,580 but not in exactly the same way the myth described. 295 00:16:18,580 --> 00:16:19,580 Put out the fire! 296 00:16:19,580 --> 00:16:23,580 It wasn't the sudden release of the canisters retarded that dampened the flames. 297 00:16:23,580 --> 00:16:29,580 The explosion simply scattered the fuel to the far-flung regions of the range. 298 00:16:29,580 --> 00:16:34,580 And this success has given the guys an idea for one more test. 299 00:16:34,580 --> 00:16:40,580 Another 800 psi CO2 canister, but this time with a dangerous difference. 300 00:16:40,580 --> 00:16:44,580 You know, there's no safety feature on the water or on the chemical foam, 301 00:16:44,580 --> 00:16:45,580 and that was kind of exciting. 302 00:16:45,580 --> 00:16:49,580 So we're going to see if, what if for some reason there was a fault in the system? 303 00:16:49,580 --> 00:16:51,580 What if that safety feature wasn't there? 304 00:16:51,580 --> 00:16:52,580 What would happen? 305 00:16:52,580 --> 00:16:56,580 Unnecessary? Sure, but it sounds exciting. 306 00:16:56,580 --> 00:16:59,580 Remember, these two were only under 100 psi. 307 00:16:59,580 --> 00:17:05,580 So can they extinguish a fire by taking the safety out of a CO2 safety valve? 308 00:17:11,580 --> 00:17:16,580 Adam and Jamie are on a mission to test the tall tail that secret agents 309 00:17:16,580 --> 00:17:20,580 have developed a water-powered electric stun gun. 310 00:17:20,580 --> 00:17:23,580 So it's water pistols at 15 feet. 311 00:17:23,580 --> 00:17:24,580 They've locked in the gun. 312 00:17:24,580 --> 00:17:27,580 Now they want to load it with electricity. 313 00:17:27,580 --> 00:17:30,580 So Jamie takes one water pistol and connects it to another. 314 00:17:30,580 --> 00:17:33,580 It's the basis for his water stun gun. 315 00:17:33,580 --> 00:17:37,580 To this, we're going to attach a stun gun to supply the electricity 316 00:17:37,580 --> 00:17:42,580 so that when we fire this stream of water, we actually zap somebody. 317 00:17:42,580 --> 00:17:44,580 That's why we call it the AquaZap. 318 00:17:44,580 --> 00:17:48,580 And Adam's already seeing marketing opportunities. 319 00:17:48,580 --> 00:17:52,580 Allow me to walk you through some of the finer details of the new AquaZap 320 00:17:52,580 --> 00:17:55,580 water suspect acquisition system. 321 00:17:55,580 --> 00:17:58,580 This will be worn on your belt in the field. 322 00:17:58,580 --> 00:18:02,580 When you see a suspect, all you've got to do is find a source of some salt water 323 00:18:02,580 --> 00:18:05,580 and normal table salt works just great. 324 00:18:05,580 --> 00:18:09,580 Draw up water into your tubes and then aim at your suspect. 325 00:18:09,580 --> 00:18:12,580 Pull the trigger of this electric device right here. 326 00:18:12,580 --> 00:18:16,580 Electricity will travel through these two wires out to electrodes 327 00:18:16,580 --> 00:18:18,580 that are in the water stream. 328 00:18:18,580 --> 00:18:22,580 And when those water streams hit your suspect, they are yours. 329 00:18:22,580 --> 00:18:23,580 Gift wrapped. 330 00:18:23,580 --> 00:18:24,580 So we've got our gun. 331 00:18:24,580 --> 00:18:26,580 We've got it hooked up to stun gun power. 332 00:18:26,580 --> 00:18:28,580 Now we need to test it. 333 00:18:28,580 --> 00:18:32,580 Well, what we need to find out is whether the stream of water is able to carry enough 334 00:18:32,580 --> 00:18:34,580 electricity to actually zap somebody. 335 00:18:34,580 --> 00:18:35,580 And I have a plan. 336 00:18:35,580 --> 00:18:36,580 It works like this. 337 00:18:36,580 --> 00:18:37,580 You get a couple of buckets. 338 00:18:37,580 --> 00:18:40,580 You put a couple of metal plates at the bottom of the buckets. 339 00:18:40,580 --> 00:18:41,580 They're wired to a meter. 340 00:18:41,580 --> 00:18:43,580 You shoot water into the buckets. 341 00:18:43,580 --> 00:18:47,580 The electricity flows through the meter and you can measure what you've got 342 00:18:47,580 --> 00:18:49,580 and whether it's enough to actually zap somebody. 343 00:18:49,580 --> 00:18:50,580 Not bad. 344 00:18:50,580 --> 00:18:51,580 It sounds a little complicated. 345 00:18:51,580 --> 00:18:56,580 Well, it is a little bit, but I happen to know a qualified electrical engineer 346 00:18:56,580 --> 00:18:57,580 and we could bring him in. 347 00:18:57,580 --> 00:19:01,580 And that highly experienced engineer is Grant. 348 00:19:01,580 --> 00:19:07,580 He's got the job of putting together the two bucket target with copper sensors in the bottom. 349 00:19:07,580 --> 00:19:10,580 All will be revealed on his oscilloscope reader. 350 00:19:10,580 --> 00:19:15,580 And we'll know if the signal is being transferred to the target via the water 351 00:19:15,580 --> 00:19:18,580 by what we see on the electrical screen. 352 00:19:18,580 --> 00:19:22,580 Remember, here's what a regular stun gun can do. 353 00:19:22,580 --> 00:19:27,580 At 15 feet, the electric zapper hits the target at 50,000 volts, 354 00:19:27,580 --> 00:19:32,580 then drops instantly to 5,000 volts for the paralyzing stage. 355 00:19:32,580 --> 00:19:38,580 And if this myth is true, the water version has got to do just as well as this, if not better. 356 00:19:38,580 --> 00:19:39,580 I think you can hit this target, dude. 357 00:19:39,580 --> 00:19:40,580 Piece of cake. 358 00:19:40,580 --> 00:19:45,580 With everything set, Jamie's ready to wield the wacky water weapon. 359 00:19:45,580 --> 00:19:47,580 So cue the sarcastic sidekick. 360 00:19:47,580 --> 00:19:50,580 I think it's clear that one of these is going to be on the belt of every police officer in the country 361 00:19:50,580 --> 00:19:52,580 inside of a couple years, man. 362 00:19:52,580 --> 00:19:54,580 This thing's going to shake things up. 363 00:19:54,580 --> 00:19:56,580 CIA, take note. 364 00:19:56,580 --> 00:19:59,580 This might be the moment of truth you've been waiting for. 365 00:19:59,580 --> 00:20:01,580 Did you get something? 366 00:20:01,580 --> 00:20:04,580 I did actually get something. 367 00:20:04,580 --> 00:20:10,580 Jamie's bullseye the sensors, but the Zap detector has brought up a dodgy reading. 368 00:20:10,580 --> 00:20:17,580 What it's reading like is that it's like it hasn't made contact with a person yet. 369 00:20:17,580 --> 00:20:19,580 And this means just one thing. 370 00:20:19,580 --> 00:20:21,580 Over to you, Grant. 371 00:20:21,580 --> 00:20:24,580 Now, interesting thing about stun guns, they have two phases. 372 00:20:24,580 --> 00:20:27,580 First phase, really high voltage. 373 00:20:27,580 --> 00:20:33,580 And that is to arc, let's say you have an air gap, the barbs are caught in your clothing, whatever. 374 00:20:33,580 --> 00:20:35,580 They arcs so that it makes a connection. 375 00:20:35,580 --> 00:20:39,580 And that goes to the second phase, which is called the loaded phase. 376 00:20:39,580 --> 00:20:43,580 And that's where the stun gun actually does its work of incapacitating the target. 377 00:20:43,580 --> 00:20:45,580 And that is where we want to be. 378 00:20:45,580 --> 00:20:49,580 The bucket rig, preventing it from getting to that second phase. 379 00:20:49,580 --> 00:20:50,580 Thanks, Grant. 380 00:20:50,580 --> 00:20:52,580 But I for one need a graphic. 381 00:20:52,580 --> 00:20:56,580 Leaving the muzzle, the stun gun barbs spark at 50,000 volts, 382 00:20:56,580 --> 00:21:00,580 called the arcing phase, as they try to complete a circuit. 383 00:21:00,580 --> 00:21:06,580 On contact with the target, they hit the loaded phase, where the volts drop instantly to 5,000. 384 00:21:06,580 --> 00:21:12,580 5,000 volts means the target isn't killed, he's just incapacitated. 385 00:21:12,580 --> 00:21:16,580 So for take two, the bucket's kicked, so to speak. 386 00:21:16,580 --> 00:21:19,580 And there's a ballistics gel dummy in its place. 387 00:21:19,580 --> 00:21:23,580 Will this get them into the loaded phase they're looking for? 388 00:21:23,580 --> 00:21:29,580 We have put a pair of screens in that describe the two extents of where his heart would be if he had one. 389 00:21:29,580 --> 00:21:36,580 This allows us to measure the exact amount of electricity the stun gun applies to your heart when you get zapped. 390 00:21:36,580 --> 00:21:41,580 Jamie's locked and loaded for a test at point blank range. 391 00:21:41,580 --> 00:21:44,580 Three, two, one. 392 00:21:47,580 --> 00:21:50,580 But even at that distance, it's not a good start. 393 00:21:50,580 --> 00:21:56,580 Looks like it's going into the loading phase, but the voltage is much, much less. 394 00:21:56,580 --> 00:22:03,580 It's hit the loaded phase okay, but the voltage is so low it wouldn't even stun a stink bug. 395 00:22:03,580 --> 00:22:07,580 So the ballistics gel test is already looking very shaky. 396 00:22:07,580 --> 00:22:11,580 Jamie tries again, this time from 5 feet away. 397 00:22:11,580 --> 00:22:13,580 Go for it. 398 00:22:14,580 --> 00:22:17,580 But now it's gone from bad to worse. 399 00:22:17,580 --> 00:22:21,580 This trace right here indicates that you never made it into the loading phase. 400 00:22:21,580 --> 00:22:23,580 But we did get a signal out of it. 401 00:22:23,580 --> 00:22:27,580 Yes, but it's not, it's still in the arcing phase. 402 00:22:27,580 --> 00:22:31,580 And that's not what you'd call ideal in a stun gun. 403 00:22:31,580 --> 00:22:34,580 It's not where you want to be if you want to stun someone. 404 00:22:34,580 --> 00:22:37,580 It's where you want to be if you want to... 405 00:22:37,580 --> 00:22:39,580 Potentially kill them. 406 00:22:39,580 --> 00:22:40,580 Oh, okay. 407 00:22:40,580 --> 00:22:41,580 Yeah. 408 00:22:41,580 --> 00:22:43,580 All in all, it's not going well. 409 00:22:43,580 --> 00:22:49,580 In a tedious, tiresome afternoon, attempt after attempt yields a totally different result. 410 00:22:49,580 --> 00:22:51,580 From no stun to death. 411 00:22:51,580 --> 00:22:54,580 These electricity myths really kick our ass, I swear. 412 00:22:54,580 --> 00:22:58,580 Which is Adam speak for This Myth's Heading Jew South. 413 00:23:02,580 --> 00:23:04,580 In three, two, one. 414 00:23:04,580 --> 00:23:08,580 Carrie Grant and Tori are tinkering with exploding fire extinguishers. 415 00:23:11,580 --> 00:23:13,580 But more on that later. 416 00:23:13,580 --> 00:23:18,580 Next, they're mulling over the myth that walking on hot coals is mostly a mind over matter. 417 00:23:18,580 --> 00:23:19,580 Matter. 418 00:23:20,580 --> 00:23:22,580 You've always been really curious about fire walking. 419 00:23:22,580 --> 00:23:25,580 Yeah, me too, and I've seen people do it, but they're always in like a trance-like state. 420 00:23:25,580 --> 00:23:27,580 So I was wondering, is that something anybody can do? 421 00:23:27,580 --> 00:23:31,580 Yeah, is it mind over matter, or is it a technique based on science, 422 00:23:31,580 --> 00:23:33,580 and ultimately an explainable phenomenon? 423 00:23:33,580 --> 00:23:34,580 Exactly. 424 00:23:34,580 --> 00:23:37,580 Well, first why don't we go talk to some experts, find out how they make the fire, 425 00:23:37,580 --> 00:23:38,580 if there's a special way to walk on it. 426 00:23:38,580 --> 00:23:41,580 All right, let's go find some fire walkers. 427 00:23:43,580 --> 00:23:48,580 So how exactly do you walk on red hot coals without searing your souls? 428 00:23:48,580 --> 00:23:50,580 Better to be rare than well done. 429 00:23:50,580 --> 00:23:54,580 Many Mythbuster fans think it's all down to mind over matter. 430 00:23:54,580 --> 00:24:01,580 For reasons completely unknown to science, the dances emerge from this ordeal entirely unharmed. 431 00:24:01,580 --> 00:24:04,580 Or is it a matter of science? 432 00:24:06,580 --> 00:24:10,580 And to begin answering these, oh dear, burning questions, 433 00:24:10,580 --> 00:24:13,580 Carrie and Grant take a fire walking field trip. 434 00:24:13,580 --> 00:24:17,580 So we're here on a fact-finding mission, we're in Sonora, California, 435 00:24:17,580 --> 00:24:25,580 and we're here to observe an actual fire walking class being put on by the Fire Walking Institute of Research and Education. 436 00:24:25,580 --> 00:24:26,580 Hi, are you Tali? 437 00:24:26,580 --> 00:24:27,580 I am Tali. 438 00:24:27,580 --> 00:24:28,580 I'm Grant. 439 00:24:28,580 --> 00:24:34,580 Incredibly, Tali teaches his students to walk across coals burning at 1000 degrees. 440 00:24:34,580 --> 00:24:38,580 All right, one or two thousand degrees, that seems crazy to me. 441 00:24:38,580 --> 00:24:41,580 It seems like you're grabbing a pan out of the oven without using oven mitts. 442 00:24:41,580 --> 00:24:45,580 Can you just walk normally across the coals, or is there some sort of special way to do it? 443 00:24:45,580 --> 00:24:49,580 Well, actually the special way is to walk like you're walking down the street. 444 00:24:49,580 --> 00:24:53,580 You don't want to run because then you'll be pounding your feet down into the coals. 445 00:24:53,580 --> 00:24:56,580 You don't want to stop, you want to take light steps. 446 00:24:56,580 --> 00:25:01,580 Well, it's easy to talk the fire walk talk, but let's see you walk the fire walk walk. 447 00:25:01,580 --> 00:25:03,580 You learn this in the Boy Scouts? 448 00:25:03,580 --> 00:25:05,580 I was never in the Boy Scouts. 449 00:25:05,580 --> 00:25:11,580 Carrie and Grant watch closely as the class carefully construct the perfect fire walk fire. 450 00:25:11,580 --> 00:25:16,580 From light up to step up, takes just over an hour. 451 00:25:16,580 --> 00:25:19,580 But after collecting some daunting data... 452 00:25:19,580 --> 00:25:22,580 Getting a top of about 1,300 Fahrenheit. 453 00:25:22,580 --> 00:25:28,580 Carrie is convinced that what matters is not what's in your mind, but how hot the darn coals are. 454 00:25:28,580 --> 00:25:32,580 After measuring this fire at 1400 degrees and hearing that after they rake it out, 455 00:25:32,580 --> 00:25:38,580 it only is going to go down to about a thousand, there's absolutely nothing so far that's convinced me that I'm going to walk on this. 456 00:25:41,580 --> 00:25:44,580 But that's not stopping anyone else. 457 00:25:49,580 --> 00:25:55,580 The students in their zen-like zone glide across without a single injury. 458 00:25:55,580 --> 00:26:01,580 But before the team tested themselves, Grant for one wants some hard data. 459 00:26:01,580 --> 00:26:08,580 I've seen it done, but I'd like to have a little bit more scientific backing before I'm willing to risk my feet. 460 00:26:09,580 --> 00:26:13,580 So it's back to the shop where the science can begin. 461 00:26:13,580 --> 00:26:16,580 And to find out just how much heat gets to the feet, 462 00:26:16,580 --> 00:26:22,580 Carrie begins by fabricating a fake foot from heat-resistant silicone. 463 00:26:22,580 --> 00:26:27,580 Meanwhile, Tori, as per our experts' instructions, prepares to build the fire. 464 00:26:27,580 --> 00:26:30,580 So Carrie and Grant have done the research. They learned how to build a fire walk. 465 00:26:30,580 --> 00:26:32,580 And now we're going to build our own in our parking lot. 466 00:26:32,580 --> 00:26:35,580 First what we're going to do is we're going to lay down 30 feet of sod. 467 00:26:35,580 --> 00:26:37,580 That way we don't crack our cement. 468 00:26:39,580 --> 00:26:42,580 Then what we're going to do is lay down 20 feet of wood. 469 00:26:42,580 --> 00:26:46,580 We're going to light that wood on fire, let it burn down, and start walking. 470 00:26:46,580 --> 00:26:49,580 Alright, we've got fire extinguisher standing by. 471 00:26:49,580 --> 00:26:51,580 Got a hose standing by. 472 00:26:51,580 --> 00:26:52,580 Let's do it. 473 00:26:52,580 --> 00:26:58,580 Now that we have our fire lit, we'll wait one hour for it to get to the optimal temperature for fire walking. 474 00:26:58,580 --> 00:27:04,580 That's when the coals are just glowing red and we can smush them down so we have a nice flat surface to walk on. 475 00:27:04,580 --> 00:27:06,580 And Tori. 476 00:27:08,580 --> 00:27:11,580 Gets in touch with his inner hunter-gatherer. 477 00:27:11,580 --> 00:27:13,580 Alright, should we start walking? 478 00:27:13,580 --> 00:27:19,580 Now let's step over to where Grant's making a sensor used to assess burning and firefighting outfits. 479 00:27:19,580 --> 00:27:22,580 This is called a copper slug calorimeter. 480 00:27:22,580 --> 00:27:27,580 And the idea is that you have this disc of copper that's an exact size and weight. 481 00:27:27,580 --> 00:27:34,580 And based on those characteristics and its thermal transfer, you can connect a thermocouple to it, 482 00:27:34,580 --> 00:27:36,580 which measures temperature. 483 00:27:36,580 --> 00:27:43,580 You'll be able to predict whether or not you're going to get first, second, or possibly even third degree burn. 484 00:27:43,580 --> 00:27:49,580 And once wired up, these copper slugs will transmit that temperature info to a computer. 485 00:27:49,580 --> 00:27:51,580 Cue Grant's inner geek. 486 00:27:51,580 --> 00:27:56,580 Fire walking is one of these things that's always been shrouded in mystery. 487 00:27:56,580 --> 00:28:03,580 And so here we are, we're going to peel back the curtain and have a look inside using science. 488 00:28:03,580 --> 00:28:05,580 Brilliant. 489 00:28:05,580 --> 00:28:11,580 Add with the sensors embedded in the silicone and the fake feet screwed to the bottom of carry shoes. 490 00:28:11,580 --> 00:28:16,580 The team's ready to stroll across hot coals. 491 00:28:16,580 --> 00:28:20,580 I'm going to put these on, walk just like I saw the Fire walkers walk. 492 00:28:20,580 --> 00:28:23,580 And I'm actually really interested to see what sort of measurements we get. 493 00:28:23,580 --> 00:28:25,580 I feel just like Cinderella. 494 00:28:25,580 --> 00:28:28,580 And after a pre-takeoff safety tip. 495 00:28:28,580 --> 00:28:32,580 If you do fall into the embers though, cover your face with your hands. 496 00:28:32,580 --> 00:28:34,580 You can always wear gloves. 497 00:28:34,580 --> 00:28:38,580 Carrie's hot new footwear is finally ready for the runway. 498 00:28:38,580 --> 00:28:42,580 All right you guys, it's over a thousand degrees, which is what we saw at the Fire walk. 499 00:28:42,580 --> 00:28:43,580 You ready to go? 500 00:28:43,580 --> 00:28:45,580 Yeah, I see the coals glowing. 501 00:28:45,580 --> 00:28:47,580 Okay, go ahead. 502 00:28:49,580 --> 00:28:56,580 While Carrie crunches the coals with her silicone soles, Grant's computer crunches the numbers. 503 00:28:56,580 --> 00:28:58,580 See, that wasn't so bad. 504 00:28:58,580 --> 00:28:59,580 No. 505 00:28:59,580 --> 00:29:00,580 All right, Grant, what'd you get? 506 00:29:00,580 --> 00:29:02,580 I got some really interesting results. 507 00:29:02,580 --> 00:29:07,580 And the first set of results up for analysis is the high-speed camera shots. 508 00:29:07,580 --> 00:29:11,580 Showing exactly how much toe touching time there is. 509 00:29:11,580 --> 00:29:19,580 So it turns out that my foot was only in contact with the hot coals from heel to toe for 9 tenths of a second. 510 00:29:19,580 --> 00:29:22,580 And my full weight was only on it for 5 tenths of a second. 511 00:29:22,580 --> 00:29:27,580 So right there, it shows you that might be one of the reasons that you don't get burned when you walk across hot coals. 512 00:29:27,580 --> 00:29:29,580 It's you're not touching the coals for very long. 513 00:29:29,580 --> 00:29:32,580 And what about the temperature and burn sensor data? 514 00:29:32,580 --> 00:29:36,580 The interesting thing is that we don't predict any injury. 515 00:29:36,580 --> 00:29:40,580 It's first, second, or third degree burns during a normal walk. 516 00:29:40,580 --> 00:29:45,580 So as long as she keeps moving, theoretically, you won't get burned. 517 00:29:45,580 --> 00:29:51,580 A theory backed up by this demonstration that the humble hot coals is actually very cool. 518 00:29:51,580 --> 00:29:58,580 Apparently, charcoal and ash are four times better at insulation than wood. 519 00:29:58,580 --> 00:30:07,580 So in theory, you should be able to pick up one of these coals, which on one side is 900 degrees, 520 00:30:07,580 --> 00:30:11,580 and on the charcoal and ash-y side is 300 degrees. 521 00:30:11,580 --> 00:30:19,580 So I should be able to put this in the palm of my hand without injury, and potentially light a fire. 522 00:30:19,580 --> 00:30:21,580 Here we go. 523 00:30:22,580 --> 00:30:27,580 So although the fire radiates heat through the air at over 1000 degrees, 524 00:30:27,580 --> 00:30:30,580 the physics at the point of contact is very different. 525 00:30:30,580 --> 00:30:31,580 There you go. 526 00:30:31,580 --> 00:30:36,580 So it seems a walker experiences low temperatures due to the following. 527 00:30:36,580 --> 00:30:43,580 Speed of contact, charcoal is a poor heat conductor, and an insulating layer of ash on the coals. 528 00:30:43,580 --> 00:30:49,580 Which means it's not looking good for the mythical, mystical method of mind over matter. 529 00:30:49,580 --> 00:30:55,580 Science seems to be saying that despite the searing temperatures, your tootsies don't have time to toast. 530 00:30:55,580 --> 00:30:59,580 But there's only one way to find out for sure. 531 00:30:59,580 --> 00:31:06,580 Now that we know that we're unlikely to get burned, is to actually try it ourselves. 532 00:31:11,580 --> 00:31:13,580 It's Wham-Bam, shoot a man. 533 00:31:13,580 --> 00:31:17,580 In a man, as Adam and Jamie discover it's a dog's life, testing the myth, 534 00:31:17,580 --> 00:31:21,580 you can build an electric stun gun powered by water. 535 00:31:21,580 --> 00:31:23,580 But it hasn't been going well. 536 00:31:25,580 --> 00:31:28,580 Plan A involves shooting into buckets, 537 00:31:28,580 --> 00:31:30,580 Plan B into ballistics gel, 538 00:31:30,580 --> 00:31:32,580 and the results? 539 00:31:32,580 --> 00:31:33,580 Ropey. 540 00:31:33,580 --> 00:31:37,580 So they're on to Plan C, shooting into sheep. 541 00:31:37,580 --> 00:31:40,580 Ah, beauty. 542 00:31:40,580 --> 00:31:45,580 At this point what I'm seeing is a test where we're not getting a lot of good data because we have so many variables. 543 00:31:45,580 --> 00:31:50,580 Firing of this thing, the waving of the water, and specifically the ballistics gelatin. 544 00:31:50,580 --> 00:31:53,580 I'm not convinced that it's exactly the resistance of human flesh. 545 00:31:53,580 --> 00:31:56,580 So we brought in the leg of lamb for two reasons. 546 00:31:56,580 --> 00:31:59,580 One, to eliminate that variable, because it's very close to human flesh, 547 00:31:59,580 --> 00:32:01,580 it ought to give us a beautiful reading. 548 00:32:01,580 --> 00:32:06,580 And two, because I think Jamie's hungry, and he likes cooking the experiments when we're done with them. 549 00:32:06,580 --> 00:32:08,580 And that's not the only change. 550 00:32:08,580 --> 00:32:11,580 To try to get to the arcing and loaded phases, 551 00:32:11,580 --> 00:32:17,580 they're going to house the water in plastic tubes that will guarantee a laminar flow. 552 00:32:17,580 --> 00:32:22,580 Testing the aquasuct is actually quite difficult because it's hard to control where the streams of water are going. 553 00:32:22,580 --> 00:32:24,580 They can easily short out. 554 00:32:24,580 --> 00:32:30,580 The way the stun guns are designed with shooting out wires, the wires are insulated so you don't have that problem. 555 00:32:30,580 --> 00:32:36,580 So we're going to actually run water through tubes, and the plastic tubes will act as insulation. 556 00:32:36,580 --> 00:32:39,580 We should get more reliable results if we do that. 557 00:32:39,580 --> 00:32:46,580 Next, they stick electrodes from the electric stun gun into the plastic tubes, and poke the tubes into the lamb. 558 00:32:46,580 --> 00:32:48,580 This is very Frankenstein. 559 00:32:48,580 --> 00:32:49,580 A little bit. 560 00:32:49,580 --> 00:32:52,580 Let's try from what? The point blank distance, about two inches away. 561 00:32:52,580 --> 00:32:53,580 Yep. 562 00:32:53,580 --> 00:32:54,580 Okay, let's start with that. 563 00:32:54,580 --> 00:32:55,580 Firing. 564 00:32:57,580 --> 00:32:58,580 Yeah, yeah. 565 00:32:58,580 --> 00:32:59,580 It's working. 566 00:32:59,580 --> 00:33:01,580 Okay, jackpot. 567 00:33:01,580 --> 00:33:04,580 It's recorded the arcing phase and the loaded phase. 568 00:33:04,580 --> 00:33:06,580 Awesome. 569 00:33:06,580 --> 00:33:13,580 This shape would be paralyzed big time, but it needs to work at a distance so they move back. 570 00:33:13,580 --> 00:33:15,580 Firing at two feet. 571 00:33:15,580 --> 00:33:17,580 I got a signal. 572 00:33:17,580 --> 00:33:18,580 You got a signal? Is it a good one? 573 00:33:18,580 --> 00:33:19,580 Not bad. 574 00:33:19,580 --> 00:33:23,580 It's still a paralyzing jolt, but there's a problem. 575 00:33:23,580 --> 00:33:25,580 As we're moving away, it's getting lower and lower. 576 00:33:25,580 --> 00:33:27,580 They move back another two feet. 577 00:33:27,580 --> 00:33:29,580 Four feet. You ready, Grant? 578 00:33:29,580 --> 00:33:30,580 I'm ready. 579 00:33:30,580 --> 00:33:31,580 Four feet. 580 00:33:31,580 --> 00:33:32,580 Got something? 581 00:33:32,580 --> 00:33:33,580 Yes. 582 00:33:33,580 --> 00:33:36,580 We're still in the loading phase. 583 00:33:36,580 --> 00:33:37,580 Only just. 584 00:33:37,580 --> 00:33:40,580 The paralyzing potential is getting weaker and weaker. 585 00:33:40,580 --> 00:33:41,580 So it's dropping. 586 00:33:41,580 --> 00:33:43,580 Every time we move a foot out, it's dropping. 587 00:33:43,580 --> 00:33:44,580 That's right. 588 00:33:44,580 --> 00:33:51,580 What we're seeing here has everything to do with the property of resistance, of a medium's resistance to electricity. 589 00:33:51,580 --> 00:33:52,580 Wire's got a very low resistance. 590 00:33:52,580 --> 00:33:53,580 It loves electricity. 591 00:33:53,580 --> 00:33:56,580 Water, it's got a much higher resistance. 592 00:33:56,580 --> 00:34:01,580 And it increases significantly, however much more water you've got to move through, 593 00:34:01,580 --> 00:34:04,580 which means every time we move one foot further away from our target, 594 00:34:04,580 --> 00:34:08,580 the water's applying more resistance and less electricity is getting to the target. 595 00:34:08,580 --> 00:34:12,580 It's not looking very good for the AquaZap here. 596 00:34:12,580 --> 00:34:17,580 Remember, the standard store-purchased stunner works at 15 feet, 597 00:34:17,580 --> 00:34:20,580 so they retreat another four feet. 598 00:34:20,580 --> 00:34:21,580 Firing. 599 00:34:21,580 --> 00:34:22,580 Eight feet. 600 00:34:22,580 --> 00:34:26,580 It's all heading in one direction, belly up. 601 00:34:26,580 --> 00:34:29,580 I think it's starting to break down, because look at the current here. 602 00:34:29,580 --> 00:34:30,580 I do. 603 00:34:30,580 --> 00:34:35,580 It's still matching the curve somewhat, although it's definitely coughing up blood. 604 00:34:35,580 --> 00:34:40,580 So that means that it's not really working past four feet, and that's not very far. 605 00:34:40,580 --> 00:34:42,580 It's not an optimal distance. 606 00:34:42,580 --> 00:34:43,580 No. 607 00:34:43,580 --> 00:34:44,580 No. 608 00:34:44,580 --> 00:34:47,580 It's taken a monumental effort to get to this point. 609 00:34:47,580 --> 00:34:49,580 Total and utter failure. 610 00:34:49,580 --> 00:34:52,580 But that's what mythbusting is all about. 611 00:34:52,580 --> 00:34:55,580 You want to go through all the problems with the AquaZap? 612 00:34:55,580 --> 00:34:56,580 Okay. 613 00:34:56,580 --> 00:35:02,580 As far as I can see, we've got two major issues, both of which lead towards the same problem. 614 00:35:02,580 --> 00:35:05,580 The first issue is the difficulty in creating a laminar flow 615 00:35:05,580 --> 00:35:10,580 means that the effective distance over which you can use the AquaZap is pretty limited. 616 00:35:10,580 --> 00:35:14,580 And the second is that the amount of electricity delivered varies greatly 617 00:35:14,580 --> 00:35:16,580 with the amount of water that it's traveling through. 618 00:35:16,580 --> 00:35:21,580 Both of these things mean you've got a super limited range this thing works from, 619 00:35:21,580 --> 00:35:23,580 and that doesn't make it a very effective weapon. 620 00:35:23,580 --> 00:35:25,580 Okay, so the AquaZap is DOA. 621 00:35:25,580 --> 00:35:27,580 I'm kind of disappointed though. 622 00:35:27,580 --> 00:35:31,580 I had my heart set on, like, firing lightning bolts. 623 00:35:31,580 --> 00:35:33,580 I thought that you would say that. 624 00:35:33,580 --> 00:35:37,580 I knew that you were feeling that, and that's why I have a surprise for you. 625 00:35:43,580 --> 00:35:44,580 In three. 626 00:35:44,580 --> 00:35:49,580 Carrie Grant and Tori have been testing the tail that if you flame grill a fire extinguisher, 627 00:35:49,580 --> 00:35:53,580 it'll blow up and put out a fire. 628 00:35:53,580 --> 00:35:59,580 In test three, the foam-filled tank blew the fire away rather than put it out. 629 00:35:59,580 --> 00:36:04,580 So for test four, Grant's cannibalized a CO2 canister 630 00:36:04,580 --> 00:36:08,580 to see if it gives them the retarded result they're looking for. 631 00:36:08,580 --> 00:36:11,580 So this is the fire extinguisher that has the safety features defeated. 632 00:36:11,580 --> 00:36:12,580 It's ready to go. 633 00:36:12,580 --> 00:36:13,580 It's totally full. 634 00:36:13,580 --> 00:36:16,580 I'm going to take it over to the unlit fire now. 635 00:36:16,580 --> 00:36:17,580 Gingerly. 636 00:36:17,580 --> 00:36:21,580 And Tori for one is sure there'll be a big bang. 637 00:36:21,580 --> 00:36:24,580 Because it's so dangerous, I don't want to be anywhere near it when the fire is lit. 638 00:36:24,580 --> 00:36:29,580 So I have some timed fuse, which is in a bag of smokeless powder. 639 00:36:29,580 --> 00:36:32,580 Now this fuse will give me 40 seconds per foot, 640 00:36:32,580 --> 00:36:34,580 so that'll give me plenty of time to light the fuse. 641 00:36:34,580 --> 00:36:35,580 Good, let's go. 642 00:36:35,580 --> 00:36:37,580 Get back to the bunker before the fire is lit. 643 00:36:39,580 --> 00:36:42,580 And really, you can't blame the guys for being cautious. 644 00:36:42,580 --> 00:36:43,580 I'm happy. 645 00:36:43,580 --> 00:36:44,580 I'm back here in the bunker. 646 00:36:44,580 --> 00:36:47,580 The water-filled tank started at 100 psi. 647 00:36:47,580 --> 00:36:53,580 This CO2 tank with safety valve disabled is already pressurized to 800. 648 00:36:53,580 --> 00:36:55,580 It has been four minutes. 649 00:36:55,580 --> 00:37:00,580 Safety valve on the regular CO2 fire extinguisher has gone off by now. 650 00:37:00,580 --> 00:37:01,580 Oh yeah, yeah. 651 00:37:01,580 --> 00:37:04,580 Which means it's definitely doing something inside that tank. 652 00:37:04,580 --> 00:37:05,580 Yeah, pressure is building. 653 00:37:05,580 --> 00:37:08,580 Pressure is building, but so is the team's doubt. 654 00:37:08,580 --> 00:37:13,580 Maybe the tank has sprung a leak and they won't get the explosion they want. 655 00:37:24,580 --> 00:37:25,580 Or maybe they will. 656 00:37:25,580 --> 00:37:27,580 And now everybody's happy. 657 00:37:27,580 --> 00:37:35,580 A warm campfire, good company, and a whopper of an explosion. 658 00:37:38,580 --> 00:37:40,580 Did you see how far the tank went? 659 00:37:40,580 --> 00:37:46,580 Officially, using the latest in high-speed camera equipment and ballistic analysis, 660 00:37:46,580 --> 00:37:48,580 I'd say you a long way. 661 00:37:48,580 --> 00:37:51,580 Look, it's a lock from the fire. 662 00:37:51,580 --> 00:37:54,580 Hot? Fire? What do you know? 663 00:37:54,580 --> 00:37:55,580 Wow. 664 00:37:55,580 --> 00:37:57,580 Look at the fire on what's left of it. 665 00:37:57,580 --> 00:37:58,580 There's a little last. 666 00:37:58,580 --> 00:38:00,580 It's almost totally out. 667 00:38:02,580 --> 00:38:06,580 All right, so this is the only part of the CO2 extinguisher that I've found so far. 668 00:38:06,580 --> 00:38:09,580 Look how thick that is. That's like a quarter inch. 669 00:38:09,580 --> 00:38:10,580 Yeah. 670 00:38:10,580 --> 00:38:12,580 Yep, it's busted all right. 671 00:38:12,580 --> 00:38:14,580 But what about the myth? 672 00:38:14,580 --> 00:38:17,580 Well, yeah, I didn't so much put the fire out as obliterated. 673 00:38:17,580 --> 00:38:18,580 But it put it out. 674 00:38:18,580 --> 00:38:19,580 Yeah. 675 00:38:19,580 --> 00:38:21,580 And we got the explosion we wanted. 676 00:38:21,580 --> 00:38:22,580 There you go. 677 00:38:22,580 --> 00:38:23,580 Yeah. 678 00:38:23,580 --> 00:38:25,580 Hello, plausible. 679 00:38:25,580 --> 00:38:39,580 Cary Grant and Tory are tackling the tall tale that a trance is your chance for a hot, cold crossing. 680 00:38:39,580 --> 00:38:40,580 Yeah. 681 00:38:40,580 --> 00:38:41,580 See, that wasn't so bad. 682 00:38:41,580 --> 00:38:46,580 But so far, the numbers predict that anyone can do it burn-free. 683 00:38:46,580 --> 00:38:49,580 However, there's only one way to find out for sure. 684 00:38:49,580 --> 00:38:52,580 So a hop, step, and a jump cut later. 685 00:38:52,580 --> 00:38:54,580 Does it seem like a stupid idea now? 686 00:38:54,580 --> 00:38:55,580 No. 687 00:38:55,580 --> 00:38:58,580 We've had a lot stupider ideas than this. 688 00:38:58,580 --> 00:39:04,580 It's the moment we, if not Cary Grant and Tory, have all been waiting for. 689 00:39:04,580 --> 00:39:06,580 All right, those cools are all red hot. 690 00:39:06,580 --> 00:39:07,580 You guys ready? 691 00:39:07,580 --> 00:39:08,580 There's no turning back now. 692 00:39:08,580 --> 00:39:11,580 Oh, are you nervous at all? 693 00:39:11,580 --> 00:39:12,580 No. 694 00:39:12,580 --> 00:39:13,580 A little. 695 00:39:13,580 --> 00:39:14,580 What? 696 00:39:14,580 --> 00:39:15,580 All right. 697 00:39:15,580 --> 00:39:21,580 After a few moments to psych herself up, Cary's the first onto the foot fryer. 698 00:39:21,580 --> 00:39:23,580 Cue the dramatic music. 699 00:39:23,580 --> 00:39:25,580 Oh, f**k. 700 00:39:25,580 --> 00:39:31,580 It's not totally not hot. 701 00:39:31,580 --> 00:39:39,580 Despite her levels of adrenaline shooting off the scale, Cary makes it across safely and finds her feet unfried. 702 00:39:39,580 --> 00:39:41,580 It's doable. 703 00:39:41,580 --> 00:39:43,580 That's doable. 704 00:39:43,580 --> 00:39:47,580 Next up for their tiptoe into trepidation is Grant. 705 00:39:47,580 --> 00:39:48,580 Yeah, Grant. 706 00:39:48,580 --> 00:39:52,580 And cool as a cucumber, he catwalks over the coals. 707 00:39:52,580 --> 00:39:53,580 Very baseball. 708 00:39:53,580 --> 00:39:54,580 There we go. 709 00:39:54,580 --> 00:39:58,580 A little hotter than I expected, but I think I made it. 710 00:39:58,580 --> 00:40:00,580 Which just leaves Tory. 711 00:40:00,580 --> 00:40:04,580 And true to form, he steps up and charges straight in. 712 00:40:04,580 --> 00:40:05,580 Here we go. 713 00:40:05,580 --> 00:40:07,580 Before breezing across. 714 00:40:07,580 --> 00:40:10,580 I'll just let that pad it off. 715 00:40:10,580 --> 00:40:12,580 I thought it was going to be a lot worse than that. 716 00:40:12,580 --> 00:40:14,580 It looks way worse than it is. 717 00:40:14,580 --> 00:40:15,580 It's really not that bad. 718 00:40:15,580 --> 00:40:17,580 It's the mental part that messes with you the most. 719 00:40:17,580 --> 00:40:20,580 As soon as I stepped on it, it really wasn't that bad. 720 00:40:20,580 --> 00:40:21,580 In fact, I didn't even feel it. 721 00:40:21,580 --> 00:40:26,580 I had to walk back one more time just to see whether or not they were hot. 722 00:40:26,580 --> 00:40:28,580 That was so crazy. 723 00:40:28,580 --> 00:40:30,580 You know what the worst part was, what was going on in your head? 724 00:40:30,580 --> 00:40:32,580 The physical wasn't so bad. 725 00:40:32,580 --> 00:40:36,580 Yeah, there is not any amount of drumming or chanting that would have made me walk on that coal. 726 00:40:36,580 --> 00:40:38,580 But the physics, the physics was there. 727 00:40:38,580 --> 00:40:40,580 That's what got me through the first step. 728 00:40:40,580 --> 00:40:41,580 You know what? 729 00:40:41,580 --> 00:40:45,580 I'm not going to lie, it was hot out there, but not hot enough to burn us. 730 00:40:45,580 --> 00:40:47,580 All right, so this one's looking busted. 731 00:40:47,580 --> 00:40:48,580 Busted. 732 00:40:48,580 --> 00:40:49,580 Busted. 733 00:40:49,580 --> 00:40:51,580 All right, let's try gasoline soaked socks next. 734 00:40:51,580 --> 00:40:52,580 Woo! 735 00:40:52,580 --> 00:40:58,580 It seems it's physics that keep your feet from being flame-grilled and not mind over matter. 736 00:40:58,580 --> 00:40:59,580 Or is it? 737 00:40:59,580 --> 00:41:04,580 What about a mind unprepared, a mind unsullied by the certainty of science? 738 00:41:04,580 --> 00:41:06,580 I thought it was going to be a lot worse than that. 739 00:41:06,580 --> 00:41:09,580 To find out, let's segue to the next day. 740 00:41:09,580 --> 00:41:10,580 What are you cooking? 741 00:41:10,580 --> 00:41:12,580 Well, the bottom of your feet. 742 00:41:12,580 --> 00:41:14,580 We're looking at the science of fire walking. 743 00:41:14,580 --> 00:41:16,580 Fire walking! 744 00:41:16,580 --> 00:41:17,580 Awesome! 745 00:41:17,580 --> 00:41:22,580 Apparently Adam would walk over hot coals to walk over hot coals. 746 00:41:22,580 --> 00:41:24,580 We're all set up. 747 00:41:24,580 --> 00:41:26,580 Adam just got here, but we haven't let the fire yet. 748 00:41:26,580 --> 00:41:30,580 I want to light it in front of him so he sees how hot this fire gets. 749 00:41:30,580 --> 00:41:32,580 So that starts playing on his mind. 750 00:41:32,580 --> 00:41:40,580 It's one thing to think intellectually that I've always wanted to walk on fire. 751 00:41:40,580 --> 00:41:45,580 It's quite another to feel the heat of 2,000 some odd degrees at my back. 752 00:41:45,580 --> 00:41:48,580 So Adam's ready for his trial by fire. 753 00:41:48,580 --> 00:41:49,580 You can do it! 754 00:41:49,580 --> 00:41:55,580 And remember, before Cary, Grant and Tori took their first hot step, they knew they wouldn't get burned. 755 00:41:55,580 --> 00:41:56,580 You gotta tell your feet to go to the bill. 756 00:41:56,580 --> 00:41:57,580 My heart rate just went up a bit. 757 00:41:57,580 --> 00:41:58,580 Okay. 758 00:41:58,580 --> 00:42:03,580 But Adam knows nothing about the data and the technique of stepping lightly. 759 00:42:03,580 --> 00:42:08,580 Will he get across unscathed or will those red hot coals fry his feet? 760 00:42:14,580 --> 00:42:16,580 Ah yes, apparently so. 761 00:42:18,580 --> 00:42:20,580 Wow, that hurt a lot. 762 00:42:21,580 --> 00:42:22,580 Ow, it's going through my head. 763 00:42:22,580 --> 00:42:25,580 As I did it, walk, walk, walk, this isn't so bad. 764 00:42:25,580 --> 00:42:27,580 Holy crap, this is pretty bad. 765 00:42:27,580 --> 00:42:28,580 Ah, like that. 766 00:42:28,580 --> 00:42:30,580 That's about the process. 767 00:42:30,580 --> 00:42:38,580 So it seems that it does matter what's in your mind, but only in so far as knowledge about technique and preparation go. 768 00:42:38,580 --> 00:42:45,580 With no prep at all, I think I made a classic mistake of speeding up and digging my feet into the coals more. 769 00:42:47,580 --> 00:42:54,580 Yep, Adam's hard marching method meant some of the coals stuck to his feet, giving them more time to conduct their heat. 770 00:42:55,580 --> 00:42:56,580 Ouch. 771 00:42:56,580 --> 00:42:57,580 Pays me. 772 00:42:57,580 --> 00:43:05,580 And after a call home with the not so good news, so I just walked on hot coals and I burned the hell out of my feet. 773 00:43:05,580 --> 00:43:08,580 Let's break out the burn cream and get this myth wrapped up. 774 00:43:08,580 --> 00:43:10,580 Oh my god, are you serious? 775 00:43:10,580 --> 00:43:13,580 I would have made it across if it weren't for you meddling kids. 776 00:43:13,580 --> 00:43:14,580 We didn't know it was going to happen. 777 00:43:14,580 --> 00:43:16,580 I mean, we all made it across just fine. 778 00:43:16,580 --> 00:43:18,580 Well, how do you explain that? 779 00:43:18,580 --> 00:43:19,580 Well, the science is all there. 780 00:43:19,580 --> 00:43:20,580 I mean, you can do it without burning your feet. 781 00:43:20,580 --> 00:43:22,580 I mean, it's not magic. 782 00:43:22,580 --> 00:43:27,580 Yeah, and the high speed analysis, it looked like you were grabbing onto the coals with your toes. 783 00:43:27,580 --> 00:43:28,580 Yeah, you have like monkey feet. 784 00:43:28,580 --> 00:43:30,580 You're just picking those coals up. 785 00:43:30,580 --> 00:43:32,580 Okay, so what are you guys calling it? 786 00:43:32,580 --> 00:43:36,580 Well, it's clear that none of us had to be in a trance in order to get across the coals. 787 00:43:36,580 --> 00:43:37,580 Science still wins. 788 00:43:37,580 --> 00:43:38,580 It's busted. 789 00:43:38,580 --> 00:43:39,580 Busted. 790 00:43:39,580 --> 00:43:40,580 See you next time. 791 00:43:40,580 --> 00:43:41,580 You're not hurt. 792 00:43:41,580 --> 00:43:42,580 You're right. 793 00:43:42,580 --> 00:43:43,580 I'm not hurt. 794 00:43:43,580 --> 00:43:44,580 Bye. 795 00:43:53,580 --> 00:44:01,580 Adam and Jamie have proved you can't turn a conventional stun gun into an electrified water stun gun. 796 00:44:01,580 --> 00:44:08,580 But in true never say die fashion, they're moving on, amping up to extreme levels to try and get a result. 797 00:44:08,580 --> 00:44:14,580 Jamie said that he wanted some big lightning bolts, and behind me in this nondescript building are the lightning bolts of his dreams. 798 00:44:14,580 --> 00:44:22,580 This is the home of the Nevada Lightning Lab, and Greg Lay, and he is going to generate some monstrous sized lightning bolts for us. 799 00:44:22,580 --> 00:44:24,580 Jamie will be well pleased. 800 00:44:24,580 --> 00:44:25,580 Ain't that the truth? 801 00:44:25,580 --> 00:44:29,580 This place is the world leader in lightning technology. 802 00:44:29,580 --> 00:44:30,580 Hi Greg. 803 00:44:30,580 --> 00:44:31,580 Hi Jamie. 804 00:44:31,580 --> 00:44:35,580 Ah, there's a lightning bolt generator of our dreams. 805 00:44:35,580 --> 00:44:39,580 So do you mind if we hook that big beastie up to my little squirt gun here and see what happens? 806 00:44:39,580 --> 00:44:41,580 We'll give it our best shot. 807 00:44:41,580 --> 00:44:42,580 Awesome. 808 00:44:42,580 --> 00:44:45,580 Greg's Tesla coil is right up the Mythbusters alley. 809 00:44:45,580 --> 00:44:48,580 This is really quite an extraordinary device. 810 00:44:48,580 --> 00:44:51,580 It's got over a mile of wire, a bank of capacitors. 811 00:44:51,580 --> 00:44:57,580 It sends out lightning bolts with about a million volts or so over 30 feet. 812 00:44:57,580 --> 00:44:59,580 It's just nuts. 813 00:44:59,580 --> 00:45:00,580 Nuts? 814 00:45:00,580 --> 00:45:01,580 Excellent. 815 00:45:01,580 --> 00:45:02,580 Crank it up. 816 00:45:02,580 --> 00:45:04,580 We're good to go. 817 00:45:04,580 --> 00:45:10,580 The Tesla coil is actually two giant coils of wire that conduct electricity. 818 00:45:10,580 --> 00:45:19,580 One charges up the other, increasing the voltage output to near a million volts, and then, like lightning, it breaks out. 819 00:45:19,580 --> 00:45:23,580 Looking for the shortest path to work. 820 00:45:23,580 --> 00:45:29,580 And Jamie and Adam are near beside themselves. 821 00:45:29,580 --> 00:45:32,580 But there's more to this than just a light show. 822 00:45:32,580 --> 00:45:34,580 Adam and Jamie are on a mission. 823 00:45:34,580 --> 00:45:37,580 Is that a big enough lightning bolt for you? 824 00:45:37,580 --> 00:45:38,580 Yeah. 825 00:45:38,580 --> 00:45:40,580 Let's have some bad guys. 826 00:45:40,580 --> 00:45:41,580 OK. 827 00:45:41,580 --> 00:45:43,580 Dummy dude, watch out. 828 00:45:43,580 --> 00:45:45,580 Jamie's up top in a cocoon basket. 829 00:45:45,580 --> 00:45:51,580 Using the AquaZap, he'll fire a stream straight at the Ballistics gel perpetrator. 830 00:45:51,580 --> 00:45:57,580 Can the million volt jolt juice up the stream and blast the bad guy? 831 00:45:57,580 --> 00:45:59,580 Jamie gets into position. 832 00:45:59,580 --> 00:46:03,580 He's getting inside a Tesla coil for science. 833 00:46:03,580 --> 00:46:10,580 Believe it or not, he's insulated and totally safe inside. 834 00:46:10,580 --> 00:46:12,580 Dead man walking. 835 00:46:12,580 --> 00:46:14,580 This is not just a mythbusters first. 836 00:46:14,580 --> 00:46:16,580 It's a world first. 837 00:46:16,580 --> 00:46:20,580 But maybe that's because no one else has been crazy enough to try it. 838 00:46:20,580 --> 00:46:23,580 We're actually doing something really interesting. 839 00:46:23,580 --> 00:46:29,580 This is actually directing a lightning bolt out of a stream of water. 840 00:46:29,580 --> 00:46:35,580 This is the maximum amount of electricity that we could pump through something like a squirt gun. 841 00:46:35,580 --> 00:46:38,580 And it really is quite exciting. 842 00:46:38,580 --> 00:46:41,580 Greg gets the Tesla coil juices flowing. 843 00:46:41,580 --> 00:46:43,580 This is my new favorite toy. 844 00:46:43,580 --> 00:46:45,580 Jamie takes aim. 845 00:46:45,580 --> 00:46:47,580 That's neat. 846 00:46:47,580 --> 00:46:49,580 And fires. 847 00:46:49,580 --> 00:46:58,580 Ha ha ha! We're in it! 848 00:46:58,580 --> 00:47:00,580 Whoa, yeah! 849 00:47:00,580 --> 00:47:03,580 Bullseye. This time they've cracked it. 850 00:47:03,580 --> 00:47:06,580 An electric stun gun that runs on water. 851 00:47:06,580 --> 00:47:08,580 Nice work, dude! 852 00:47:08,580 --> 00:47:10,580 How you feeling? 853 00:47:10,580 --> 00:47:11,580 You got him! 854 00:47:11,580 --> 00:47:12,580 That was a nice shot. 855 00:47:12,580 --> 00:47:16,580 I could see right down the lightning bolt right to his head. 856 00:47:16,580 --> 00:47:18,580 A million volts. 857 00:47:18,580 --> 00:47:23,580 And unlike a real perpetrator, our bad dude hasn't even broken a sweat. 858 00:47:23,580 --> 00:47:24,580 What a trooper. 859 00:47:24,580 --> 00:47:27,580 And he's willing to take another one for the team. 860 00:47:27,580 --> 00:47:30,580 Jamie's starting to warm to this gig. 861 00:47:34,580 --> 00:47:37,580 Done! He's out! 862 00:47:37,580 --> 00:47:40,580 This time the strike is even better. 863 00:47:40,580 --> 00:47:42,580 It's traveled right along the stream. 864 00:47:42,580 --> 00:47:45,580 A million volts straight into the bad guy's brain. 865 00:47:45,580 --> 00:47:50,580 But it's drawn up a small design problem. 866 00:47:50,580 --> 00:47:52,580 Here's what I've concluded. 867 00:47:52,580 --> 00:47:55,580 You've got a perp. He's causing trouble. You want to subdue him. 868 00:47:55,580 --> 00:47:58,580 So you get a crane. You crane in your 18 foot high Tesla coil. 869 00:47:58,580 --> 00:48:00,580 You bring a ladder over. You climb inside it. 870 00:48:00,580 --> 00:48:01,580 Get in a water pistol. Load it up. 871 00:48:01,580 --> 00:48:04,580 Squirt it at the perpetrator and subdue him. 872 00:48:04,580 --> 00:48:07,580 In other words, it seems totally impractical. 873 00:48:10,580 --> 00:48:14,580 And along with the myth, the fun's done and dusted. 874 00:48:14,580 --> 00:48:17,580 I have to admit, I had high hopes for the water stun gun. 875 00:48:17,580 --> 00:48:21,580 But we did do diligence and it's busted. 876 00:48:21,580 --> 00:48:24,580 Yeah, I think it's pretty well busted. 877 00:48:24,580 --> 00:48:27,580 You're not going to fit one of those in a holster any time soon. 878 00:48:27,580 --> 00:48:29,580 No, our work here is done.