1 00:00:00,000 --> 00:00:04,360 Attention viewers do not try anything you're about to see at home. 2 00:00:04,360 --> 00:00:06,520 Wear what you call experts. 3 00:00:08,520 --> 00:00:14,240 On this episode of Mythbusters, Adam and Janie make the magic happen. 4 00:00:14,240 --> 00:00:17,560 Ha ha ha! I think we graduated! 5 00:00:17,560 --> 00:00:21,480 We're testing some supercharged viral video trickery. 6 00:00:22,760 --> 00:00:24,160 You ready to run Christmas dinner? 7 00:00:24,160 --> 00:00:25,160 I can't wait. 8 00:00:25,160 --> 00:00:29,000 Cat on motorcycle make a tablecloth disappear. 9 00:00:30,760 --> 00:00:31,760 Here it comes! 10 00:00:31,760 --> 00:00:34,280 Meanwhile, Carrie, Grant and Tori... 11 00:00:34,280 --> 00:00:35,960 They're gonna fry my brains. 12 00:00:35,960 --> 00:00:38,960 ...strain their brains for this pop culture myth. 13 00:00:38,960 --> 00:00:41,720 Did you know most people use 10% of their brains? 14 00:00:41,720 --> 00:00:43,840 ...but is this fraction a fact? 15 00:00:43,840 --> 00:00:46,240 It's light enough like a Christmas tree there. 16 00:00:46,240 --> 00:00:47,240 That's so cool. 17 00:00:47,240 --> 00:00:50,440 The team probe their lobes to find out. 18 00:00:50,440 --> 00:00:52,440 This is real science. 19 00:00:54,720 --> 00:00:56,720 Who are the Mythbusters? 20 00:00:56,720 --> 00:00:58,320 Adam Savage. 21 00:00:58,320 --> 00:00:59,320 Now I'm ready. 22 00:00:59,320 --> 00:01:01,040 And Jamie Heineman. 23 00:01:01,040 --> 00:01:02,040 FINE! 24 00:01:02,040 --> 00:01:06,800 Between them more than 30 years of special effects experience. 25 00:01:06,800 --> 00:01:07,800 Joining them... 26 00:01:07,800 --> 00:01:08,800 ...Aah! 27 00:01:08,800 --> 00:01:09,800 ...Carrie Byron. 28 00:01:09,800 --> 00:01:11,600 What is that? 29 00:01:11,600 --> 00:01:12,600 Tori Belleggi. 30 00:01:12,600 --> 00:01:14,600 Oh, he survived. 31 00:01:14,600 --> 00:01:16,320 And Grant Imahara. 32 00:01:16,320 --> 00:01:18,000 Start the car! 33 00:01:18,000 --> 00:01:19,520 They don't just tell the myths... 34 00:01:19,520 --> 00:01:20,840 ...Aah! 35 00:01:20,840 --> 00:01:22,840 ...they put them to the test. 36 00:01:29,320 --> 00:01:37,320 Check this out. 37 00:01:37,320 --> 00:01:41,520 I hate to break it to you, but I've seen that before. 38 00:01:41,520 --> 00:01:42,520 It's a magic trick. 39 00:01:42,520 --> 00:01:43,520 It's not a myth. 40 00:01:43,520 --> 00:01:44,520 This isn't. 41 00:01:44,520 --> 00:01:47,400 But there's a video that's been making the rounds on the web that is a twist to this 42 00:01:47,400 --> 00:01:49,880 trick that I think is right up our alley. 43 00:01:49,880 --> 00:01:51,240 And that is? 44 00:01:51,240 --> 00:01:56,920 In this clip, a table as long as a bus and set for a banquet has its tablecloth pulled 45 00:01:56,920 --> 00:02:01,280 out from under all its settings without disturbing any of them using only the power of a super 46 00:02:01,280 --> 00:02:03,080 souped up motorcycle. 47 00:02:03,080 --> 00:02:04,280 Ah, now you're talking. 48 00:02:04,280 --> 00:02:07,560 I thought you'd like it. 49 00:02:07,560 --> 00:02:14,280 In this viral video, rather than a quick flick of the wrist, it's a quick flick of the accelerator. 50 00:02:14,280 --> 00:02:22,640 And abracadabra, the tablecloth disappears and a perfectly laid table remains. 51 00:02:22,640 --> 00:02:30,080 But is this turbocharged trick true or just special effects sorcery? 52 00:02:30,080 --> 00:02:31,080 So what's the plan? 53 00:02:31,080 --> 00:02:35,360 Well, since this is in fact a trick that people do every day, I think we should spend some 54 00:02:35,360 --> 00:02:39,320 time unpacking the mechanics of exactly what makes it work. 55 00:02:39,320 --> 00:02:41,720 Small scale test down on the floor of the shop? 56 00:02:41,720 --> 00:02:42,720 Exactly. 57 00:02:42,720 --> 00:02:46,120 We're going to scale this up to a fairly impossible dimension. 58 00:02:46,120 --> 00:02:51,600 And I suspect that a lot of factors, object heaviness, cloth type, table type, all of these 59 00:02:51,600 --> 00:02:54,640 things might affect our success on that scale. 60 00:02:54,640 --> 00:02:59,600 Thus, in the small scale, we need to learn what factors are critical to making it work. 61 00:02:59,600 --> 00:03:03,440 And with the table made, Adam can focus on his hocus pocus. 62 00:03:03,440 --> 00:03:05,680 Dude, are you ready? 63 00:03:05,680 --> 00:03:07,840 I'm all ready. 64 00:03:07,840 --> 00:03:09,720 Well there's a vote of confidence. 65 00:03:09,720 --> 00:03:18,840 Tablecloth pull in three, two, one. 66 00:03:18,840 --> 00:03:20,480 That wasn't bad for a first try. 67 00:03:20,480 --> 00:03:25,320 Okay, it's still pretty bad for a first try. 68 00:03:25,320 --> 00:03:30,240 Not bad, but clearly there are some tricks to this trick. 69 00:03:30,240 --> 00:03:34,200 So next, it's time for Adam to button those down. 70 00:03:34,200 --> 00:03:38,840 The table jumped all over the place. 71 00:03:38,840 --> 00:03:42,000 I think we can address that with a simple sandbag. 72 00:03:42,000 --> 00:03:45,360 Two, when I feel this, it's plywood. 73 00:03:45,360 --> 00:03:46,360 It's pretty rough. 74 00:03:46,360 --> 00:03:50,120 We're going to make it smoother before continuing, like this. 75 00:03:50,120 --> 00:03:53,280 Now we're ready. 76 00:03:53,280 --> 00:03:58,640 With a smooth, stable table covered with a fresh cloth and a single bottle, there's 77 00:03:58,640 --> 00:04:01,440 one final thing Adam needs. 78 00:04:01,440 --> 00:04:03,120 I want to know if this moves. 79 00:04:03,120 --> 00:04:05,800 I have an idea. 80 00:04:05,800 --> 00:04:11,120 To monitor how much the wine moves, he makes a point. 81 00:04:11,120 --> 00:04:12,120 You ready? 82 00:04:12,120 --> 00:04:13,120 I'm ready. 83 00:04:13,120 --> 00:04:14,120 Okay, here we go. 84 00:04:14,120 --> 00:04:15,120 In. 85 00:04:15,120 --> 00:04:16,120 Three, two, one. 86 00:04:16,120 --> 00:04:17,120 Same thing. 87 00:04:17,120 --> 00:04:21,640 Maybe it's the way I'm pulling. 88 00:04:21,640 --> 00:04:29,640 But that point isn't required until eventually Adam gets the grip. 89 00:04:29,640 --> 00:04:35,480 All right, now what did I do right? 90 00:04:35,480 --> 00:04:40,320 Well, Newton's first law of inertia means that objects at rest stay at rest. 91 00:04:40,320 --> 00:04:44,200 But when the cloth is pulled, friction also acts on the objects. 92 00:04:44,200 --> 00:04:49,480 However, if the inertia is greater than the friction, the tablecloth is whipped free. 93 00:04:49,480 --> 00:04:53,840 But that's not the only reason the trick has started to work. 94 00:04:53,840 --> 00:04:58,320 I think I've got something, which is the tablecloth has to end at the table. 95 00:04:58,320 --> 00:04:59,600 It can't be draping over. 96 00:04:59,600 --> 00:05:01,040 It's draping over. 97 00:05:01,040 --> 00:05:03,600 Too much noise is created and it wants to pull the bottle over. 98 00:05:03,600 --> 00:05:08,000 But when it's at the edge, it seems to leave the bottle standing. 99 00:05:08,000 --> 00:05:10,880 Now I want to play with some other fabrics. 100 00:05:10,880 --> 00:05:12,800 Five-eighths of an inch. 101 00:05:12,800 --> 00:05:16,840 Using the high-speed camera and his pointer, seven-sixteenths. 102 00:05:16,840 --> 00:05:21,040 Adam can assess just how much the bottle moves with a range of fabrics. 103 00:05:21,040 --> 00:05:22,040 This one's no good. 104 00:05:22,040 --> 00:05:24,600 I mean, took me wrong. 105 00:05:24,600 --> 00:05:25,600 It's lovely. 106 00:05:25,600 --> 00:05:29,000 It's no good for this trick. 107 00:05:29,000 --> 00:05:31,080 That right there, that's a quarter inch. 108 00:05:31,080 --> 00:05:32,880 That's the best one yet. 109 00:05:32,880 --> 00:05:37,440 I had assumed that a heavier satin fabric would actually be best for sliding underneath 110 00:05:37,440 --> 00:05:38,440 the objects on the table. 111 00:05:38,440 --> 00:05:42,240 In fact, the lighter weight ones are outperforming everybody. 112 00:05:42,240 --> 00:05:47,200 Moreover, they're outperforming them when the shiny side is down rather than up. 113 00:05:47,200 --> 00:05:49,520 Who would have thought? 114 00:05:49,520 --> 00:05:55,380 It turns out the lightweight satin has this category, sonar, making it the best-case scenario 115 00:05:55,380 --> 00:05:57,160 fabric for large scale. 116 00:05:57,160 --> 00:05:59,840 But there's one more parameter to test. 117 00:05:59,840 --> 00:06:06,560 I find myself wondering if weight is a factor and so I plan to remove some from this bottle. 118 00:06:06,560 --> 00:06:10,640 In theory, the more mass an object has, the greater its inertia. 119 00:06:10,640 --> 00:06:13,640 Don't worry, we only waste the cheapest wines. 120 00:06:13,640 --> 00:06:17,800 So reducing the weight of the bottle could work against Adam. 121 00:06:17,800 --> 00:06:22,600 Empty bottle and my favorite fabric, three, two, one. 122 00:06:22,600 --> 00:06:24,640 But it doesn't. 123 00:06:24,640 --> 00:06:34,600 Because there's also a corresponding drop in the friction of the bottle on the tablecloth. 124 00:06:34,720 --> 00:06:38,440 When you combine all the factors of the tablecloth tug. 125 00:06:38,440 --> 00:06:41,120 Three, two, one. 126 00:06:41,120 --> 00:06:42,120 Wow. 127 00:06:42,120 --> 00:06:43,120 Yeah. 128 00:06:43,120 --> 00:06:44,120 That works. 129 00:06:44,120 --> 00:06:45,120 I know. 130 00:06:45,120 --> 00:06:47,120 So what did we learn here? 131 00:06:47,120 --> 00:06:49,120 Well, we learned how to do the trick. 132 00:06:49,120 --> 00:06:51,120 I think we graduated. 133 00:06:51,120 --> 00:06:54,320 But we also learned some of the critical factors. 134 00:06:54,320 --> 00:06:59,520 One, most importantly, the tablecloth needs to be sheer, lightweight and have no stretch 135 00:06:59,520 --> 00:07:00,920 in either dimension. 136 00:07:00,920 --> 00:07:03,920 Two, the tablecloth's placement is critical. 137 00:07:03,920 --> 00:07:05,680 It can't go over the edge of the table. 138 00:07:05,680 --> 00:07:07,600 It needs to be right up to it. 139 00:07:07,600 --> 00:07:10,520 And three, the objects don't have to be very heavy. 140 00:07:10,520 --> 00:07:13,000 They actually can be quite light and it still could work. 141 00:07:13,000 --> 00:07:18,320 And that tells me that this might actually work. 142 00:07:18,320 --> 00:07:20,640 I think Adam has this stunt down. 143 00:07:20,640 --> 00:07:25,040 But it's one thing to do this by hand with a small table with just a couple things on 144 00:07:25,040 --> 00:07:26,040 it. 145 00:07:26,040 --> 00:07:28,200 It's another thing to do this with a motorcycle. 146 00:07:28,200 --> 00:07:33,520 And yet another thing to do this with a motorcycle and a really big table. 147 00:07:33,520 --> 00:07:41,000 You've got our work cut out for us. 148 00:07:41,000 --> 00:07:43,720 Next up, the mythbusters have a myth on the brain. 149 00:07:43,720 --> 00:07:48,680 Okay, well I hope you guys have your brains in gear. 150 00:07:48,680 --> 00:07:49,680 Always do. 151 00:07:49,680 --> 00:07:50,680 Good. 152 00:07:50,680 --> 00:07:51,920 Because for this next myth you're going to need them. 153 00:07:51,920 --> 00:07:55,360 We are testing a myth that is so prevalent that it's just taken for granted that it's 154 00:07:55,360 --> 00:07:56,360 fact. 155 00:07:56,360 --> 00:07:58,740 Humans only use 10% of their brain. 156 00:07:58,740 --> 00:08:00,000 You hear that everywhere. 157 00:08:00,000 --> 00:08:01,800 It's like ingrained in our society. 158 00:08:01,800 --> 00:08:02,800 Definitely. 159 00:08:02,800 --> 00:08:05,720 It doesn't necessarily make it true. 160 00:08:05,720 --> 00:08:09,680 This myth is so pop culture that it even made it to the Simpsons. 161 00:08:09,680 --> 00:08:10,680 Joke if you will. 162 00:08:10,680 --> 00:08:13,440 But did you know most people use 10% of their brains? 163 00:08:13,440 --> 00:08:15,240 I am now one of them. 164 00:08:15,240 --> 00:08:21,840 But are we really only using a fraction of our brains? 165 00:08:21,840 --> 00:08:25,240 I think we need to come up with the biggest, most challenging brain test. 166 00:08:25,240 --> 00:08:27,360 One that will test every single area of the brain. 167 00:08:27,360 --> 00:08:30,640 Well let's utilize some sort of technology that can monitor brain activity and then maybe 168 00:08:30,640 --> 00:08:34,000 come up with like a quiz that can stimulate that activity. 169 00:08:34,000 --> 00:08:35,000 Sounds good. 170 00:08:35,000 --> 00:08:36,200 But you know I think we need some more info. 171 00:08:36,200 --> 00:08:39,960 So if you guys want to figure out how we can map the brain for a quiz, I'll find out more 172 00:08:39,960 --> 00:08:42,800 about the brain itself, its parts and how they work. 173 00:08:42,800 --> 00:08:44,800 Cool. 174 00:08:44,800 --> 00:08:48,280 So before they start quizzing, they need a brain expert. 175 00:08:48,280 --> 00:08:50,520 And Granta's found just the man. 176 00:08:50,520 --> 00:08:51,520 Dr. Manley. 177 00:08:51,520 --> 00:08:56,720 So if we were to go about testing, what percentage of your brain you use, what sort of tests 178 00:08:56,720 --> 00:08:57,720 could you recommend? 179 00:08:57,920 --> 00:09:02,120 There's a number of tests that one can do to look at brain activity or functional connectivity. 180 00:09:02,120 --> 00:09:06,120 One of the earliest ways that we determined to do this is with what's called an EEG or 181 00:09:06,120 --> 00:09:07,920 an electroencephalogram. 182 00:09:07,920 --> 00:09:11,560 And this is where we measure the surface electrical activity on the brain. 183 00:09:11,560 --> 00:09:16,440 And when you do an EEG, you can see that all parts of the brain have some sort of activity. 184 00:09:16,440 --> 00:09:21,080 I know the brain handles a lot of functions around the body, but what are the various 185 00:09:21,080 --> 00:09:23,360 parts and what specifically do they do? 186 00:09:23,360 --> 00:09:26,520 The brain is probably the most complicated organ in the human body. 187 00:09:26,520 --> 00:09:30,600 And as you can see here, the brain has many different parts and structures, which we break 188 00:09:30,600 --> 00:09:35,320 down typically into the frontal lobes, which are involved in executive functions such as 189 00:09:35,320 --> 00:09:37,240 planning and judgment. 190 00:09:37,240 --> 00:09:41,680 We have the temporal lobes here that are primarily involved in language here on the left side. 191 00:09:41,680 --> 00:09:44,800 And towards the medial part of it are involved in memory. 192 00:09:44,800 --> 00:09:49,040 The parietal lobes here help to integrate a lot of the sensory information. 193 00:09:49,040 --> 00:09:53,160 The occipital lobe, which is in the back, is how we process all of our visual information 194 00:09:53,160 --> 00:09:55,160 and things of that nature. 195 00:09:55,160 --> 00:09:58,120 And that's important to remember for testing this myth. 196 00:09:58,120 --> 00:10:02,720 With different areas of the brain responsible for very different functions, they'll need 197 00:10:02,720 --> 00:10:08,880 a variety of tests to trigger every single part of Grant's brain, so the EEG can track 198 00:10:08,880 --> 00:10:11,280 its activity. 199 00:10:11,280 --> 00:10:17,760 Armed with this info, Grant heads to the studio where the brain games can begin. 200 00:10:17,760 --> 00:10:22,840 To test the myth that we only use 10% of our brain, we have this amazing Brain Busters 201 00:10:22,840 --> 00:10:24,000 game show set. 202 00:10:24,000 --> 00:10:27,880 Now, Grant's going to be hooked up to an EEG and monitored by our specialist Cynthia 203 00:10:27,880 --> 00:10:28,880 Curson. 204 00:10:28,880 --> 00:10:31,360 Will this enhance my innate telepathic abilities? 205 00:10:31,360 --> 00:10:32,360 No. 206 00:10:32,360 --> 00:10:37,000 I get to play the host today and present him with all of his challenges. 207 00:10:37,000 --> 00:10:42,680 So now, the first round of Brain Busters. 208 00:10:42,680 --> 00:10:45,120 Memory mania. 209 00:10:45,120 --> 00:10:48,240 This tricky test will target his temporal lobe. 210 00:10:48,880 --> 00:10:54,560 Grant, we're going to present you with 10 images of a person and an object. 211 00:10:54,560 --> 00:11:00,000 Then, we will repeat the images of the people and you have to name the object that's associated 212 00:11:00,000 --> 00:11:01,840 with that person. 213 00:11:01,840 --> 00:11:02,840 Are you ready? 214 00:11:02,840 --> 00:11:03,840 I'm ready. 215 00:11:03,840 --> 00:11:08,040 Adam Savage goes with... 216 00:11:08,040 --> 00:11:09,240 Orange. 217 00:11:09,240 --> 00:11:10,240 One right. 218 00:11:10,240 --> 00:11:12,440 By recalling who goes with what? 219 00:11:12,440 --> 00:11:13,440 Gun. 220 00:11:13,440 --> 00:11:14,440 Two right. 221 00:11:14,440 --> 00:11:15,440 Lion. 222 00:11:15,440 --> 00:11:16,440 That's three right. 223 00:11:16,440 --> 00:11:18,480 Grant's temporal lobe is triggered. 224 00:11:18,480 --> 00:11:19,480 Three. 225 00:11:19,480 --> 00:11:20,480 Four right. 226 00:11:20,480 --> 00:11:23,280 And the corresponding brain activity is recorded on the EEG. 227 00:11:23,280 --> 00:11:24,280 Cloud. 228 00:11:24,280 --> 00:11:25,280 Six right. 229 00:11:25,280 --> 00:11:26,280 Wheel. 230 00:11:26,280 --> 00:11:27,280 Seven right. 231 00:11:27,280 --> 00:11:34,240 With one test down and one perfect score, round number two is crazy calculation, which 232 00:11:34,240 --> 00:11:38,400 should be the ultimate challenge for Grant's parietal lobe. 233 00:11:38,400 --> 00:11:40,080 Are you ready? 234 00:11:40,080 --> 00:11:41,080 I'm ready. 235 00:11:41,080 --> 00:11:42,080 Begin. 236 00:11:42,080 --> 00:11:43,080 12. 237 00:11:43,080 --> 00:11:44,080 13. 238 00:11:44,840 --> 00:11:49,720 To add extra difficulty, the numbers will spin and fade, while an audio track spits 239 00:11:49,720 --> 00:11:52,480 out others to distract Grant. 240 00:11:52,480 --> 00:11:53,480 20. 241 00:11:53,480 --> 00:11:54,480 10. 242 00:11:54,480 --> 00:11:55,600 You are correct. 243 00:11:55,600 --> 00:11:57,360 The answer is 10. 244 00:11:57,360 --> 00:11:58,360 Next question. 245 00:11:58,360 --> 00:11:59,360 12. 246 00:11:59,360 --> 00:12:00,360 2. 247 00:12:00,360 --> 00:12:01,360 You are correct. 248 00:12:01,360 --> 00:12:04,040 Then, the unthinkable happens. 249 00:12:04,040 --> 00:12:05,800 Grant gets a math question. 250 00:12:05,800 --> 00:12:06,800 Wrong. 251 00:12:06,800 --> 00:12:07,800 6. 252 00:12:07,800 --> 00:12:11,800 The answer is 7. 253 00:12:11,800 --> 00:12:13,800 You fail. 254 00:12:14,520 --> 00:12:15,520 6. 255 00:12:15,520 --> 00:12:18,960 But one wrong answer doesn't deter Grant. 256 00:12:18,960 --> 00:12:19,960 5. 257 00:12:19,960 --> 00:12:20,960 Correct. 258 00:12:20,960 --> 00:12:23,760 And he nails the rest of the round. 259 00:12:23,760 --> 00:12:24,760 2. 260 00:12:24,760 --> 00:12:25,760 12. 261 00:12:25,760 --> 00:12:26,760 6. 262 00:12:26,760 --> 00:12:27,760 You are correct. 263 00:12:27,760 --> 00:12:31,760 You get 9 out of 10 in advance to the next round. 264 00:12:31,760 --> 00:12:37,560 Grant's brain is certainly getting a workout, but is it a strain on more than 10% of his 265 00:12:37,560 --> 00:12:38,560 brain? 266 00:12:38,560 --> 00:12:42,360 Stay tuned for the final round of Brain Busters. 267 00:12:42,920 --> 00:12:45,000 My goodness. 268 00:12:45,000 --> 00:12:49,360 And later, we're going to try the world's biggest tablecloth bowl. 269 00:12:49,360 --> 00:12:50,680 What? 270 00:12:50,680 --> 00:12:59,720 The Mythbusters are updating the traditional tablecloth tug because of this viral video. 271 00:12:59,720 --> 00:13:07,120 Now, in the video, it looks like the location they're filming into some kind of large, 272 00:13:07,120 --> 00:13:09,440 long military warehouse type building. 273 00:13:09,440 --> 00:13:21,000 Luckily, in San Francisco, we've got a few of those. 274 00:13:21,000 --> 00:13:24,000 So let the turbo-charge trickery begin. 275 00:13:24,000 --> 00:13:25,920 Let me tell you about the bike we're going to use. 276 00:13:25,920 --> 00:13:27,720 This is my personal sport bike. 277 00:13:27,720 --> 00:13:32,000 It's an 1125R DSB made by Eric Field Racing. 278 00:13:32,000 --> 00:13:34,160 It weighs 390 pounds. 279 00:13:34,160 --> 00:13:37,480 It puts 150 horsepower to the rear wheel. 280 00:13:37,520 --> 00:13:43,200 It does 0 to 60 in the 6 seconds and a quarter mile in 9.8 seconds. 281 00:13:43,200 --> 00:13:47,480 It tops out about 180 miles an hour. 282 00:13:47,480 --> 00:13:52,600 If we can't pull this off, it won't be because the bike's not fast enough. 283 00:13:52,600 --> 00:13:56,840 That's the super-charged bike, and now they need a super-sized table. 284 00:13:56,840 --> 00:13:58,440 Where do you get one of those? 285 00:13:58,440 --> 00:14:00,440 Well, I'm about to build it right here. 286 00:14:00,440 --> 00:14:03,800 When I'm done, we're going to cover it with a tablecloth and 24-place settings, which 287 00:14:03,800 --> 00:14:08,440 should allow the mismaners approved, two foot from guest to guest. 288 00:14:08,440 --> 00:14:12,600 Even though our guests are non-existent, we like to hold to mismaners. 289 00:14:12,600 --> 00:14:18,520 And with Adam's 24-foot table almost finished, the final step is the table decoration. 290 00:14:18,520 --> 00:14:23,160 First with a cloth of lightweight satin, and on top of that, well... 291 00:14:23,160 --> 00:14:24,520 This is one place setting. 292 00:14:24,520 --> 00:14:28,440 We need 23 more, which means we're going to need some help. 293 00:14:28,440 --> 00:14:31,520 That's what they're here for. 294 00:14:31,560 --> 00:14:37,000 Adam's elves make quick work of the table laying, copying the video as closely as possible. 295 00:14:37,000 --> 00:14:42,160 And with the motorcycle hooked up, time for some predictions. 296 00:14:42,160 --> 00:14:43,920 I'm up two minds about this thing. 297 00:14:43,920 --> 00:14:46,160 Part of me really wants to see it succeed. 298 00:14:46,160 --> 00:14:51,600 The other part is looking forward to the horror show of everything hitting the ground, especially 299 00:14:51,600 --> 00:14:54,240 on high speed. 300 00:14:54,240 --> 00:14:56,200 I can't tell which I want more. 301 00:14:56,200 --> 00:14:58,840 We set this whole thing up exactly like it was in the video. 302 00:14:58,840 --> 00:15:05,480 So if the video wasn't faked, when I take off, only the table cloth is coming with me. 303 00:15:05,480 --> 00:15:09,080 Personally, nah, it's not going to happen. 304 00:15:09,080 --> 00:15:14,040 Well with the table dressed for dinner, and Jamie's need for speed, there's only one 305 00:15:14,040 --> 00:15:16,040 way to find out. 306 00:15:21,320 --> 00:15:25,520 Now for the final part of the game show made for your mind. 307 00:15:25,520 --> 00:15:27,520 Brain busters. 308 00:15:27,520 --> 00:15:29,640 Grant's brain is in the hot seat. 309 00:15:29,640 --> 00:15:30,640 Six. 310 00:15:30,640 --> 00:15:33,640 To find out if he's using more than 10%. 311 00:15:33,640 --> 00:15:37,640 And we're back for more brain buster challenge. 312 00:15:37,640 --> 00:15:40,640 In this challenge, we will be stimulating the front to low. 313 00:15:40,640 --> 00:15:45,120 Now this part of the brain is used in planning, decision making, risk taking. 314 00:15:45,120 --> 00:15:50,400 So in this next test, Grant will be forced to make a decision in the face of risk. 315 00:15:50,400 --> 00:15:55,400 Grant, right in your face is a 12 inch balloon. 316 00:15:55,400 --> 00:15:59,000 You will control its inflation by the button at your fingertips. 317 00:15:59,000 --> 00:16:01,400 This is a risk and reward task. 318 00:16:01,400 --> 00:16:02,400 Are you ready? 319 00:16:02,400 --> 00:16:03,400 I'm ready. 320 00:16:03,400 --> 00:16:04,400 Start to inflate. 321 00:16:04,400 --> 00:16:07,400 The longer Grant inflates the balloon, the more points. 322 00:16:07,400 --> 00:16:11,400 However, if the balloon bursts, he'll get zilch. 323 00:16:11,400 --> 00:16:12,400 Okay. 324 00:16:12,400 --> 00:16:13,400 4.4. 325 00:16:13,400 --> 00:16:14,400 4.4. 326 00:16:14,400 --> 00:16:18,400 Flight all the way. 327 00:16:18,400 --> 00:16:21,400 My goodness. 328 00:16:21,400 --> 00:16:22,400 Okay. 329 00:16:22,400 --> 00:16:23,400 9.3. 330 00:16:23,400 --> 00:16:24,400 Wow. 331 00:16:24,400 --> 00:16:28,400 That was a crazy big balloon. 332 00:16:28,400 --> 00:16:34,400 With his frontal lobe probed, the final challenge is flash frame. 333 00:16:34,400 --> 00:16:38,400 So the next round, we are going to stimulate the occipital lobe. 334 00:16:38,400 --> 00:16:41,400 That is the lower back part of the brain. 335 00:16:41,400 --> 00:16:44,400 This is the one that helps you process visual information. 336 00:16:44,400 --> 00:16:47,400 Let's see how Grant does this round. 337 00:16:47,400 --> 00:16:49,400 This test may look easy. 338 00:16:49,400 --> 00:16:50,400 Amic. 339 00:16:50,400 --> 00:16:55,400 But Grant's occipital lobe must work hard to detect the differences. 340 00:16:55,400 --> 00:16:57,400 Green house. 341 00:16:57,400 --> 00:16:58,400 Asparagus. 342 00:16:58,400 --> 00:17:00,400 Main on the zebra. 343 00:17:00,400 --> 00:17:04,400 You got 4 out of 5 correct. 344 00:17:04,400 --> 00:17:08,400 And for those of you playing at home, here's what Grant missed. 345 00:17:08,400 --> 00:17:11,400 The clouds actually appear on the horizon. 346 00:17:11,400 --> 00:17:12,400 Got it. 347 00:17:12,400 --> 00:17:17,400 With that, this episode of Brain Busters is over. 348 00:17:18,400 --> 00:17:21,400 So we have tested all 4 lobes of the brain. 349 00:17:21,400 --> 00:17:29,400 But now what we need to do is look at the EEG, crunch the data and find out exactly how well his brain is firing. 350 00:17:32,400 --> 00:17:33,400 So let's recap. 351 00:17:33,400 --> 00:17:40,400 We determined in small scale that it is in fact possible to remove a tablecloth under items sitting on a table without any trickery. 352 00:17:40,400 --> 00:17:42,400 It's just technique. 353 00:17:42,400 --> 00:17:47,400 The question is, is it possible to do it when your table has 24 place settings on it? 354 00:17:47,400 --> 00:17:49,400 That's what we're about to determine. 355 00:17:50,400 --> 00:17:53,400 Yep, and here's a reminder of how it's supposed to look. 356 00:17:54,400 --> 00:17:58,400 But now, to find out if the mythbusters can pull this off. 357 00:17:58,400 --> 00:17:59,400 It's all set up. 358 00:17:59,400 --> 00:18:00,400 You ready to ruin Christmas dinner? 359 00:18:00,400 --> 00:18:01,400 I can't wait. 360 00:18:01,400 --> 00:18:03,400 Uncle Jamie always does that. 361 00:18:03,400 --> 00:18:04,400 Get started. 362 00:18:12,400 --> 00:18:15,400 Monster tablecloth pull, just like the video. 363 00:18:15,400 --> 00:18:16,400 Go! 364 00:18:28,400 --> 00:18:31,400 Well some stuff stayed on the table. 365 00:18:31,400 --> 00:18:33,400 Abracadabra that, eh? 366 00:18:34,400 --> 00:18:42,400 Despite Jamie gunning the accelerator on the superbike, it wasn't enough to overcome the friction of 24 table settings. 367 00:18:46,400 --> 00:18:47,400 Oops! 368 00:18:49,400 --> 00:18:51,400 This is why we can't have nice things. 369 00:18:51,400 --> 00:18:52,400 I guess so. 370 00:18:52,400 --> 00:18:53,400 What a horror show. 371 00:18:54,400 --> 00:18:55,400 I lost some of them on the table. 372 00:18:55,400 --> 00:18:57,400 That's exactly what I said. 373 00:18:57,400 --> 00:18:58,400 The glasses have full. 374 00:18:58,400 --> 00:19:01,400 This trick worked exactly like it did in the small skim. 375 00:19:01,400 --> 00:19:10,400 At least for a couple of settings, the problem was the other 22 pretty much got destroyed. 376 00:19:10,400 --> 00:19:17,400 The thing is that these first two settings only had a couple of feet of cloth to deal with. 377 00:19:17,400 --> 00:19:22,400 Everything from here down had much more cloth that had to clear underneath it to do the job. 378 00:19:23,400 --> 00:19:28,400 And that meant that it all started to move and a lot of it moved right under the floor. 379 00:19:29,400 --> 00:19:37,400 It's starting to look like the spectacular tablecloth strip of the video clip could be a lot more complicated than it seems. 380 00:19:37,400 --> 00:19:39,400 Clearly we've got to do that again. 381 00:19:39,400 --> 00:19:41,400 We've got to clean up first. 382 00:19:41,400 --> 00:19:43,400 Yeah, well, he who made the mess gets to clean it up. 383 00:19:43,400 --> 00:19:45,400 See you in a couple of hours. 384 00:19:46,400 --> 00:19:53,400 Next, can the Mythbusters turn the tables or will they miss this trick? 385 00:20:01,400 --> 00:20:04,400 The Mythbusters have only one thing on their mind. 386 00:20:06,400 --> 00:20:10,400 Do humans use only 10% of their brains? 387 00:20:11,400 --> 00:20:16,400 After a tense wait, Grant's brain power results are in. 388 00:20:16,400 --> 00:20:20,400 So we can't wait to find out how did Grant do through the challenges? 389 00:20:20,400 --> 00:20:23,400 Well, I was happy to see that Grant did very well on his test. 390 00:20:23,400 --> 00:20:30,400 He compares pretty closely to normal and all of the parts of the brain that we thought would be illuminated during the different tasks, most for the most part, were. 391 00:20:30,400 --> 00:20:37,400 In fact, for every test, Grant's brain activity is lit up on the EEG just where you'd expect. 392 00:20:37,400 --> 00:20:40,400 We have activity right here in the temporal lobes. 393 00:20:40,400 --> 00:20:45,400 There was activity in the left parietal area while he was doing this math task. 394 00:20:45,400 --> 00:20:50,400 You can see here that we did pick up some activity in the occipital lobes and in the deeper structures. 395 00:20:50,400 --> 00:20:54,400 Grant's brain is working, but how much of it is engaged? 396 00:20:54,400 --> 00:20:56,400 So Cynthia, what's the bottom line? 397 00:20:56,400 --> 00:21:01,400 Based on these tests, can you assign a percentage to the amount of my brain that I'm using? 398 00:21:01,400 --> 00:21:06,400 Based on these results, we can see that the right parts of your brain were being activated during the certain tasks. 399 00:21:06,400 --> 00:21:12,400 But we can't really make a determination about the percentage of your brain that you were actually utilizing. 400 00:21:12,400 --> 00:21:20,400 The results of the EEG tests showed us that we actually constructed these tests to excite the right parts of the brain. 401 00:21:20,400 --> 00:21:23,400 In fact, they were excited in the way that we expected. 402 00:21:23,400 --> 00:21:31,400 Unfortunately, they were inconclusive in actually giving us a percentage that we could assign. 403 00:21:31,400 --> 00:21:39,400 The EEG focuses on the surface activity of Grant's brain, so it can't provide a conclusive all-over percentage. 404 00:21:39,400 --> 00:21:43,400 And inconclusive just doesn't cut it for the mythbusters. 405 00:21:43,400 --> 00:21:45,400 So we need another brain testing device. 406 00:21:45,400 --> 00:21:48,400 I think I have just the thing. We should go to the MEG. 407 00:21:48,400 --> 00:21:51,400 Apparently it can give us the kind of brain mapping we're looking for. 408 00:21:51,400 --> 00:21:54,400 Oh boy, I see more quizzing in our future. 409 00:21:54,400 --> 00:22:01,400 Well, actually Tori, more quizzing in your future as the team heads to UCSF Biomedical Imaging Lab, 410 00:22:01,400 --> 00:22:05,400 where they'll use an MEG to read Tori's mind. 411 00:22:05,400 --> 00:22:08,400 I don't know if I'm ready for this. 412 00:22:08,400 --> 00:22:12,400 Now the magnetoencephalograph is much more comprehensive than the EEG. 413 00:22:12,400 --> 00:22:15,400 Any electrical current is going to produce a magnetic field. 414 00:22:15,400 --> 00:22:23,400 The MEG uses extremely sensitive, superconducting sensors to measure the field that the brain's electrical current generates. 415 00:22:23,400 --> 00:22:28,400 It's a sensitive machine that can detect even the tiniest brain waves. 416 00:22:28,400 --> 00:22:31,400 And in the capable hands of the UCSF Brainiacs... 417 00:22:31,400 --> 00:22:33,400 You guys aren't going to erase my memories, are you? 418 00:22:33,400 --> 00:22:34,400 Don't worry. 419 00:22:34,400 --> 00:22:37,400 Tori is carefully hooked up for testing. 420 00:22:37,400 --> 00:22:39,400 Help me! Help me get out of here! 421 00:22:39,400 --> 00:22:43,400 So we're going to put this microphone up by your mouth so we can record what you're saying. 422 00:22:43,400 --> 00:22:44,400 You're going to leave me in here? 423 00:22:44,400 --> 00:22:45,400 Bye! 424 00:22:45,400 --> 00:22:46,400 Bye! 425 00:22:46,400 --> 00:22:49,400 Should we start it defrosht and work our way up? 426 00:22:50,400 --> 00:22:53,400 And now comes the hard part. 427 00:22:53,400 --> 00:22:57,400 A series of four tests to put Tori's brain to work. 428 00:22:57,400 --> 00:23:01,400 And find out if he's using more than the mythical 10%. 429 00:23:01,400 --> 00:23:02,400 All right, please start holding still. 430 00:23:02,400 --> 00:23:06,400 Like the EEG, we're going to start by firing up the temporal lobe. 431 00:23:06,400 --> 00:23:10,400 Now this is the one associated with memory and auditory stimulation. 432 00:23:10,400 --> 00:23:13,400 Okay, Layton, so how does this test work? 433 00:23:13,400 --> 00:23:15,400 So I've trained Tori on these word pairs. 434 00:23:15,400 --> 00:23:18,400 What he's going to do is he's going to hear one of the words and he's going to speak back 435 00:23:18,400 --> 00:23:21,400 the word that he's been trained on that's associated with the first word. 436 00:23:21,400 --> 00:23:23,400 Basket. 437 00:23:23,400 --> 00:23:24,400 Tori. 438 00:23:24,400 --> 00:23:25,400 Book. 439 00:23:25,400 --> 00:23:26,400 Adam. 440 00:23:26,400 --> 00:23:27,400 Coffee. 441 00:23:27,400 --> 00:23:28,400 Grant. 442 00:23:28,400 --> 00:23:34,400 Tori completes test one with flying colors and then it's on to the occipital lobe test 443 00:23:34,400 --> 00:23:35,400 with some familiar faces. 444 00:23:35,400 --> 00:23:38,400 I feel like I'm in a Kubrick film right now. 445 00:23:38,400 --> 00:23:40,400 Okay, Tori, here's what you're going to do. 446 00:23:40,400 --> 00:23:43,400 You're going to be looking at the screen and there are going to be faces appearing on the screen. 447 00:23:43,400 --> 00:23:44,400 Okay. 448 00:23:44,400 --> 00:23:47,400 Faces are either going to be ones that are familiar to you, like Carrie there. 449 00:23:47,400 --> 00:23:50,400 If you see a familiar one, you press the button with your right hand. 450 00:23:50,400 --> 00:23:51,400 Okay. 451 00:23:51,400 --> 00:23:54,400 If it's an unfamiliar face, one you've never seen before, like that person right there, 452 00:23:54,400 --> 00:23:56,400 you're going to press the left button. 453 00:23:56,400 --> 00:23:57,400 Okay. 454 00:23:57,400 --> 00:23:58,400 And that's it. 455 00:23:58,400 --> 00:23:59,400 Hey, who's that guy? 456 00:23:59,400 --> 00:24:04,400 Now the occipital test, it wasn't that hard, but it was designed to stimulate the part of 457 00:24:04,400 --> 00:24:08,400 my brain that visually recognizes things that I already know. 458 00:24:08,400 --> 00:24:10,400 Yeah, I just saw him push a button there. 459 00:24:10,400 --> 00:24:12,400 That's cool. 460 00:24:12,400 --> 00:24:17,400 Test number three is a simple math task to stimulate Tori's parietal lobe. 461 00:24:17,400 --> 00:24:19,400 All right, so what's this test all about? 462 00:24:19,400 --> 00:24:22,400 There's going to be a pair of numbers flashing on the screen, and the numbers can be either 463 00:24:22,400 --> 00:24:23,400 the same or different. 464 00:24:23,400 --> 00:24:26,400 And if the numbers are the same, he's going to press the left button. 465 00:24:26,400 --> 00:24:29,400 If they're different, he's going to press the right button. 466 00:24:29,400 --> 00:24:33,400 As the numbers flash, Tori does his best to press the right buttons, but it seems the 467 00:24:33,400 --> 00:24:37,400 tension is getting to him inside the MEG. 468 00:24:37,400 --> 00:24:39,400 Oh, try not to grade your teeth, please. 469 00:24:39,400 --> 00:24:41,400 All right. 470 00:24:41,400 --> 00:24:46,400 For the frontal lobe quiz, the team uses a test which seems like a simple enough combination 471 00:24:46,400 --> 00:24:48,400 of text and color. 472 00:24:48,400 --> 00:24:52,400 What happens is a word appears on the screen, and the word is a color, either yellow or blue. 473 00:24:52,400 --> 00:24:57,400 And the color of the word itself can be either the same color as the word or a different 474 00:24:57,400 --> 00:24:58,400 color. 475 00:24:58,400 --> 00:25:02,400 And when the two are incongruent, it creates a cognitive conflict, and that really drives 476 00:25:02,400 --> 00:25:03,400 activity in the frontal lobe. 477 00:25:03,400 --> 00:25:04,400 I like that one. 478 00:25:04,400 --> 00:25:05,400 That's cool. 479 00:25:05,400 --> 00:25:08,400 It's cool, but deceptively difficult. 480 00:25:08,400 --> 00:25:13,400 And with all the tests complete, Tori's head is completely checked. 481 00:25:13,400 --> 00:25:15,400 Hey, good job, man. 482 00:25:15,400 --> 00:25:17,400 Who are you, people? 483 00:25:17,400 --> 00:25:18,400 What year are they? 484 00:25:18,400 --> 00:25:21,400 All right, so tell me, am I using more than 10% of my brain? 485 00:25:21,400 --> 00:25:24,400 We'll know in a couple of days where I have to crank on the data. 486 00:25:24,400 --> 00:25:29,400 But preliminary results show that you're missing part of that frontal lobe where it tells you 487 00:25:29,400 --> 00:25:31,400 not to jump over red wagons with bicycles. 488 00:25:31,400 --> 00:25:34,400 Can we wipe that memory from my brain? 489 00:25:38,400 --> 00:25:45,400 In this viral video, the motorcycle takes off and takes the tablecloth with it. 490 00:25:45,400 --> 00:25:54,400 But after one tragic magic trick, it's looking more like a mission improbable. 491 00:25:54,400 --> 00:25:56,400 Well, that was just the horror show that I was looking for. 492 00:25:56,400 --> 00:26:01,400 And honestly, I'm not sure if this is going to work at all, but if it is, if there's any 493 00:26:01,400 --> 00:26:05,400 chance of it working, I see that there's two major problems that we've got to solve. 494 00:26:05,400 --> 00:26:07,400 One is there's a lot of weight on that tablecloth. 495 00:26:07,400 --> 00:26:11,400 I mean, one of the reasons I think the small, light, thin tablecloth works so well on the 496 00:26:11,400 --> 00:26:14,400 small scale is because it got out of the way. 497 00:26:14,400 --> 00:26:17,400 When you've got heavy weight on it, it's harder for it to get out of the way. 498 00:26:17,400 --> 00:26:22,400 Second is that tablecloth has to start moving faster from the get-go. 499 00:26:22,400 --> 00:26:24,400 It needs more of a big jerk. 500 00:26:24,400 --> 00:26:25,400 I'm not talking about Jamie. 501 00:26:25,400 --> 00:26:30,400 I'm talking about some slack in the rope so he gets up to speed and then, boink, pulls 502 00:26:30,400 --> 00:26:32,400 it out at speed. 503 00:26:32,400 --> 00:26:34,400 That's what we got to do. 504 00:26:34,400 --> 00:26:35,400 That's the plan. 505 00:26:35,400 --> 00:26:41,400 So first, Adam gets rid of that excess weight and just like any diet, cutting out booze 506 00:26:41,400 --> 00:26:42,400 is a good start. 507 00:26:42,400 --> 00:26:44,400 Yeah, that's cheap. 508 00:26:44,400 --> 00:26:49,400 Then with the lighter table settings back in place, the next step is to give this trick 509 00:26:49,400 --> 00:26:52,400 enough rope. 510 00:26:52,400 --> 00:26:53,400 Here we are. 511 00:26:53,400 --> 00:26:54,400 200 feet. 512 00:26:54,400 --> 00:26:58,400 200 feet of nylon line coiled so that it cannot get tangled. 513 00:26:58,400 --> 00:27:03,400 What will happen is, I will say, okay, pull the tablecloth out from under the table, 514 00:27:03,400 --> 00:27:07,400 out from under the table with 200 feet of line, go. 515 00:27:07,400 --> 00:27:10,400 Jamie's going to take off on his bike. 516 00:27:10,400 --> 00:27:15,400 This rope is going to spool out all 200 feet of it until he reaches the end. 517 00:27:15,400 --> 00:27:20,400 He's going to tug on this with about 50 to 60 miles per hour with the force, whatever 518 00:27:20,400 --> 00:27:21,400 that is. 519 00:27:21,400 --> 00:27:24,400 Not going to say, I don't think it's going to help. 520 00:27:24,400 --> 00:27:31,400 And while Adam is skeptical of the full table strip, Jamie has a case of worst case scenarioitis. 521 00:27:31,400 --> 00:27:34,400 This time around, the rope is going to pull taut. 522 00:27:34,400 --> 00:27:38,400 The bike's going to stop and I'm going to keep going straight into the wall. 523 00:27:38,400 --> 00:27:43,400 Well, time to find out who will survive this tablecloth tug of war. 524 00:27:43,400 --> 00:27:46,400 The table settings or the Heinemann? 525 00:27:46,400 --> 00:27:47,400 Go! 526 00:27:48,400 --> 00:27:53,400 As Jamie throttles the throttle, the line unspools and... 527 00:28:02,400 --> 00:28:05,400 That was so much closer than I thought it would be. 528 00:28:07,400 --> 00:28:10,400 Once again, the magic doesn't happen. 529 00:28:10,400 --> 00:28:14,400 But this time around, there was a lot less destruction. 530 00:28:18,400 --> 00:28:22,400 Clearly, we still need to do some work, but less than I thought. 531 00:28:24,400 --> 00:28:27,400 You can see the difference between this run and the last run. 532 00:28:27,400 --> 00:28:31,400 Most of the dishes are still on the table and not only that, they're not broken. 533 00:28:31,400 --> 00:28:35,400 What that tells me is that we're on the right track, but of course, we can do better. 534 00:28:39,400 --> 00:28:40,400 Look at that! 535 00:28:40,400 --> 00:28:44,400 It's a little sloppy, but it's a lot better than it was the last time. 536 00:28:44,400 --> 00:28:48,400 I'd say 90% of what we had stayed on the table. 537 00:28:48,400 --> 00:28:51,400 I mean, it all got tipped over, but it stayed on the table. 538 00:28:51,400 --> 00:28:53,400 That's a lot closer than I thought we'd be. 539 00:28:53,400 --> 00:28:54,400 Well, you know what that means. 540 00:28:54,400 --> 00:28:55,400 What? 541 00:28:55,400 --> 00:28:56,400 I just need to go faster. 542 00:28:56,400 --> 00:29:00,400 I'm not sure if speed is the only fix, but definitely speed will help. 543 00:29:00,400 --> 00:29:02,400 How fast do you think we want to go? 544 00:29:02,400 --> 00:29:04,400 100 miles an hour. 545 00:29:05,400 --> 00:29:08,400 You can need like a quarter mile to get up to that speed. 546 00:29:08,400 --> 00:29:09,400 Let's go find a quarter mile. 547 00:29:09,400 --> 00:29:10,400 Okay. 548 00:29:14,400 --> 00:29:25,400 Did you know most people use 10% of their brains? 549 00:29:25,400 --> 00:29:28,400 According to the Simpsons, this is fact. 550 00:29:28,400 --> 00:29:31,400 But the Mythbusters are putting that to the test. 551 00:29:31,400 --> 00:29:32,400 Well, this has been terrific. 552 00:29:32,400 --> 00:29:34,400 Let's do it again sometime. 553 00:29:34,400 --> 00:29:38,400 And Tori's MEG results are in. 554 00:29:38,400 --> 00:29:41,400 We're back at UCSF to get the results for Tori's MEG. 555 00:29:41,400 --> 00:29:43,400 This is going to tell us if our myth is confirmed. 556 00:29:43,400 --> 00:29:45,400 It's a really big moment for us. 557 00:29:45,400 --> 00:29:49,400 Yep, so it's over to the neurologist to reveal the final percentages. 558 00:29:49,400 --> 00:29:52,400 So we've got the results from the MEG. 559 00:29:52,400 --> 00:29:53,400 How's the myth looking? 560 00:29:53,400 --> 00:29:54,400 Very interesting. 561 00:29:54,400 --> 00:29:56,400 I think that there's an element of truth to this myth. 562 00:29:56,400 --> 00:30:00,400 If you look at a 100 millisecond time scale and you're doing one thing. 563 00:30:00,400 --> 00:30:01,400 Basket. 564 00:30:01,400 --> 00:30:02,400 Tori. 565 00:30:02,400 --> 00:30:04,400 We see about 10% of the brain active. 566 00:30:04,400 --> 00:30:06,400 But that's just one tenth of a second. 567 00:30:06,400 --> 00:30:09,400 What's the percentage of the brain activity during the entire challenge? 568 00:30:09,400 --> 00:30:12,400 We found that the total overall brain activation was about 35%. 569 00:30:12,400 --> 00:30:13,400 35%. 570 00:30:13,400 --> 00:30:15,400 So the myth is busted? 571 00:30:15,400 --> 00:30:16,400 Totally busted. 572 00:30:16,400 --> 00:30:21,400 So the essence of the myth I really believe is that you're only using 10% all the time. 573 00:30:21,400 --> 00:30:23,400 So for that you're pretty much saying it's busted. 574 00:30:23,400 --> 00:30:26,400 But what's interesting is just that one tenth of a second. 575 00:30:26,400 --> 00:30:29,400 There's a little bit of plausibility there. 576 00:30:29,400 --> 00:30:30,400 That's really cool. 577 00:30:30,400 --> 00:30:35,400 Even individually, Tori's lobes were still firing at more than 10%. 578 00:30:35,400 --> 00:30:37,400 So the myth is busted. 579 00:30:37,400 --> 00:30:41,400 But that's given our brainbusters a brainwave. 580 00:30:41,400 --> 00:30:43,400 And they can't leave it there. 581 00:30:43,400 --> 00:30:45,400 Mythbusters. 582 00:30:45,400 --> 00:30:50,400 So after all of our tests we have proven that we do use more than 10% of our brain. 583 00:30:50,400 --> 00:30:55,400 But now it's time to go deeper to find out exactly how much or how little of our brain we use. 584 00:30:55,400 --> 00:31:01,400 So we're here at UCSF to get an fMRI, a functional magnetic resonance image. 585 00:31:01,400 --> 00:31:03,400 This should be interesting. 586 00:31:03,400 --> 00:31:06,400 Once again, Lab Rat Tori is ready for testing. 587 00:31:06,400 --> 00:31:11,400 But instead of quizzes, this time they're doing things slightly differently. 588 00:31:11,400 --> 00:31:12,400 Alright. 589 00:31:12,400 --> 00:31:13,400 Engage. 590 00:31:15,400 --> 00:31:16,400 What? 591 00:31:16,400 --> 00:31:17,400 You're such a nerd. 592 00:31:19,400 --> 00:31:20,400 Newsflash. 593 00:31:20,400 --> 00:31:26,400 So the first test that Tori's going to take in the fMRI is going to be the bare minimum of activity. 594 00:31:26,400 --> 00:31:29,400 He's going to be at rest with his eyes closed. 595 00:31:29,400 --> 00:31:34,400 Okay Tori, what I need you to do is try to stay still and stay awake for the next eight minutes. 596 00:31:34,400 --> 00:31:35,400 Here we go. 597 00:31:35,400 --> 00:31:41,400 And that way we can see when you're doing absolutely nothing, how much of your brain you're actually using. 598 00:31:44,400 --> 00:31:45,400 That's insane. 599 00:31:45,400 --> 00:31:48,400 So that's what he looks like as a zombie. 600 00:31:50,400 --> 00:31:54,400 Even at rest it seems that Tori's brain is still very active. 601 00:31:54,400 --> 00:31:55,400 That's so cool. 602 00:31:55,400 --> 00:32:00,400 And eventually after eight minutes it's time for test two. 603 00:32:00,400 --> 00:32:05,400 We're going to try to have Tori fire up every lobe of the brain and the cerebellum all at once. 604 00:32:05,400 --> 00:32:08,400 Now to do that we're going to have him tell a story out loud. 605 00:32:08,400 --> 00:32:16,400 The story's going to involve trauma, recollection, order of events, all sorts of things that we can see all of the brain firing at once. 606 00:32:16,400 --> 00:32:20,400 Okay Tori, we're going to do the storytelling part of the experiment. 607 00:32:20,400 --> 00:32:21,400 We're going to begin. 608 00:32:22,400 --> 00:32:24,400 So one day you're out. 609 00:32:25,400 --> 00:32:31,400 Interestingly Tori's traumatic story involves an unfortunate bike accident. 610 00:32:33,400 --> 00:32:35,400 Gosh, pretty scary. 611 00:32:35,400 --> 00:32:38,400 He's lighting up like a Christmas tree there. 612 00:32:38,400 --> 00:32:39,400 What's going on? 613 00:32:39,400 --> 00:32:42,400 Well as he's telling the story there's activity in a lot of brain regions. 614 00:32:42,400 --> 00:32:47,400 So you can see these parts of the frontal lobe in either hemisphere active as he's telling the story. 615 00:32:47,400 --> 00:32:50,400 Now he's taking a break and you can see the activity go down. 616 00:32:50,400 --> 00:32:56,400 And when he hears himself tell the story you can see activity in auditory cortex and temporal lobe light up. 617 00:32:56,400 --> 00:32:57,400 That's great. 618 00:32:59,400 --> 00:33:03,400 And with Tori's story over he's ejected from the test tube. 619 00:33:03,400 --> 00:33:10,400 The interesting thing about our test today is that at rest your brain is using so much more than I actually expected. 620 00:33:10,400 --> 00:33:12,400 I feel like a lap rat. 621 00:33:12,400 --> 00:33:19,400 I mean I knew that when you were going to tell a traumatic story or you're doing something interesting that you're going to have a lot of things firing. 622 00:33:19,400 --> 00:33:25,400 When you're just sitting there doing nothing you're already looking like you're using more than 10%. 623 00:33:25,400 --> 00:33:26,400 Next. 624 00:33:26,400 --> 00:33:27,400 Tablecloth pole. 625 00:33:27,400 --> 00:33:29,400 600 feet of rope. 626 00:33:29,400 --> 00:33:31,400 100 miles an hour. 627 00:33:31,400 --> 00:33:32,400 Jamie go. 628 00:33:40,400 --> 00:33:45,400 When magic works it makes you believe the impossible is possible. 629 00:33:46,400 --> 00:33:52,400 But so far this tablecloth take off looks like it could be just smoke and mirrors. 630 00:33:54,400 --> 00:34:01,400 So the mythbusters have come to Alameda to find out if they can pull this one off at 100 miles per hour. 631 00:34:01,400 --> 00:34:03,400 Show off. 632 00:34:07,400 --> 00:34:09,400 Tablecloth pole 101. 633 00:34:09,400 --> 00:34:14,400 We tried it in scale in the shop and learned that you need a thin tablecloth with no hem and a good sharp pole. 634 00:34:14,400 --> 00:34:20,400 So then we went into a warehouse and we tried replicating exactly what we saw in the video and this happened. 635 00:34:23,400 --> 00:34:30,400 Then we thought what if we pulled the tablecloth much faster so we added 200 foot of rope between the motorcycle and the tablecloth. 636 00:34:30,400 --> 00:34:34,400 Jamie got up to about 50 miles an hour and this happened. 637 00:34:35,400 --> 00:34:40,400 But we wanted to know what it would take to do it for reals. 638 00:34:40,400 --> 00:34:42,400 So the table is set. 639 00:34:42,400 --> 00:34:48,400 Jamie is warming up the motorcycle and in a few minutes we're going to try the world's biggest tablecloth pole. 640 00:34:50,400 --> 00:34:57,400 We've considered that one of the biggest stresses on the tablecloth for the success of this effect is the overall weight of everything on this table. 641 00:34:57,400 --> 00:35:00,400 And thus we've reduced it by at least half. 642 00:35:00,400 --> 00:35:06,400 We've replaced all the cast aluminum flower pots and champagne buckets with stainless steel ones with smoother bottoms. 643 00:35:06,400 --> 00:35:10,400 We've replaced all the ceramic plate wear with plastic plate wear. 644 00:35:10,400 --> 00:35:14,400 We're hoping that that lighter weight will actually make this much more possible. 645 00:35:14,400 --> 00:35:18,400 Remember this trick is a battle between inertia and friction. 646 00:35:18,400 --> 00:35:23,400 So reducing the weight of the table settings means the friction should decrease. 647 00:35:23,400 --> 00:35:25,400 That's the idea. 648 00:35:25,400 --> 00:35:31,400 But Jamie for one is still skeptical that this will work even at 100 miles per hour. 649 00:35:33,400 --> 00:35:40,400 When I take off on this bike, 600 feet of line is going to pay out and it's going to yank the tablecloth off the table at 100 miles an hour. 650 00:35:40,400 --> 00:35:43,400 Hopefully all the dishes will remain in place and intact. 651 00:35:43,400 --> 00:35:46,400 But what really is going to happen is hard to say. 652 00:35:46,400 --> 00:35:48,400 100 miles an hour is awfully quick. 653 00:35:48,400 --> 00:35:53,400 But if the dishes just move a little bit and they stay upright, 654 00:35:54,400 --> 00:35:56,400 we're going to. 655 00:35:56,400 --> 00:35:58,400 I still don't think it's going to work. 656 00:35:58,400 --> 00:36:00,400 Even with all this, I don't think it's going to work. 657 00:36:00,400 --> 00:36:02,400 But again, I'm usually wrong. 658 00:36:02,400 --> 00:36:04,400 So you should probably bet the opposite. 659 00:36:04,400 --> 00:36:08,400 Well, with the preparations complete, it's the moment of truth. 660 00:36:08,400 --> 00:36:09,400 You ready to do this? 661 00:36:09,400 --> 00:36:10,400 Yep. 662 00:36:10,400 --> 00:36:11,400 Let's do it. 663 00:36:14,400 --> 00:36:15,400 All right. 664 00:36:15,400 --> 00:36:16,400 Here we go. 665 00:36:16,400 --> 00:36:18,400 Possibly the world's biggest tablecloth. 666 00:36:18,400 --> 00:36:19,400 Pull. 667 00:36:19,400 --> 00:36:22,400 In three, two, one, go. 668 00:36:23,400 --> 00:36:24,400 Oh. 669 00:36:29,400 --> 00:36:30,400 Oh. 670 00:36:34,400 --> 00:36:35,400 Oh. 671 00:36:37,400 --> 00:36:40,400 Ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha. 672 00:36:46,400 --> 00:36:48,400 It really was the best attempt so far. 673 00:36:50,400 --> 00:36:52,400 And still we have destruction. 674 00:36:53,400 --> 00:36:54,400 But hey, I was right. 675 00:36:54,400 --> 00:36:59,400 It's the closest they've come to success with half the table intact. 676 00:36:59,400 --> 00:37:00,400 Oh. 677 00:37:02,400 --> 00:37:06,400 But the high speed reveals that there was a hitch. 678 00:37:06,400 --> 00:37:12,400 We can tell by looking at the high speed that a rip occurred on the front corner of the table 679 00:37:12,400 --> 00:37:16,400 because the tablecloth is being pulled down slightly 680 00:37:16,400 --> 00:37:21,400 and the sharp square corner eventually made a little bit of a start of a rip 681 00:37:21,400 --> 00:37:22,400 and then it was all over. 682 00:37:22,400 --> 00:37:23,400 We can fix that. 683 00:37:24,400 --> 00:37:26,400 It's a simple fix. 684 00:37:26,400 --> 00:37:30,400 And while Jamie takes the edge off, Adam whips up another tablecloth. 685 00:37:31,400 --> 00:37:35,400 And once the repairs are finished, the table is set for take two. 686 00:37:38,400 --> 00:37:39,400 Tablecloth pull. 687 00:37:39,400 --> 00:37:41,400 600 feet of line. 688 00:37:41,400 --> 00:37:43,400 100 miles an hour. 689 00:37:43,400 --> 00:37:44,400 Jamie, go. 690 00:37:53,400 --> 00:37:54,400 Whoa, whoa. 691 00:38:08,400 --> 00:38:12,400 Well that is certainly as good as it gets, but it's still rolling. 692 00:38:14,400 --> 00:38:15,400 They faked it. 693 00:38:15,400 --> 00:38:17,400 Totally faked it. 694 00:38:18,400 --> 00:38:20,400 They almost pulled that one off. 695 00:38:20,400 --> 00:38:27,400 But even a perfect run at 100 miles per hour still wasn't enough to leave the table intact. 696 00:38:36,400 --> 00:38:38,400 Hey, that's not bad. 697 00:38:38,400 --> 00:38:39,400 Not bad at all. 698 00:38:39,400 --> 00:38:42,400 Everything's slid, especially on the front half. 699 00:38:42,400 --> 00:38:43,400 We lost a few place settings. 700 00:38:43,400 --> 00:38:45,400 Most everything is still standing. 701 00:38:45,400 --> 00:38:46,400 But honestly, you know what I'm thinking? 702 00:38:46,400 --> 00:38:47,400 What? 703 00:38:47,400 --> 00:38:48,400 They faked it. 704 00:38:48,400 --> 00:38:49,400 Yeah, they faked it. 705 00:38:49,400 --> 00:38:50,400 It's busted. 706 00:38:50,400 --> 00:38:52,400 Yeah, totally busted. 707 00:38:58,400 --> 00:38:59,400 That run wasn't half bad. 708 00:38:59,400 --> 00:39:04,400 In fact, it was pretty darn good, but it wasn't what we saw in the clip. 709 00:39:04,400 --> 00:39:06,400 So that's what we've got to do next. 710 00:39:06,400 --> 00:39:07,400 We're going to have to fake it. 711 00:39:07,400 --> 00:39:08,400 Coming up. 712 00:39:09,400 --> 00:39:10,400 Boy, I hope this works. 713 00:39:10,400 --> 00:39:11,400 It'll work. 714 00:39:16,400 --> 00:39:18,400 They're going to fry my brain. 715 00:39:19,400 --> 00:39:24,400 The Mythbusters have been picking Tori's brain to find out just what it can do. 716 00:39:24,400 --> 00:39:26,400 And now the results are in. 717 00:39:26,400 --> 00:39:34,400 So, Layton, from the results that you were looking at, overall total percentage, how much was Tori using at resting point? 718 00:39:34,400 --> 00:39:42,400 So when we're looking at the brain at rest, if we look at three major networks in the brain, the visual network, the auditory network, the sensory motor network, 719 00:39:42,400 --> 00:39:49,400 and put those three networks together, even at rest when he's not doing anything at all, that accounts for about 15% of total brain activity. 720 00:39:49,400 --> 00:39:56,400 The scans for Tori at rest clearly show that even though his body is inactive, his brain certainly isn't. 721 00:39:56,400 --> 00:40:01,400 All right, so this is the test where I'm trying to recall a story and try to use as many lobes as possible. 722 00:40:01,400 --> 00:40:02,400 What did I come up with? 723 00:40:02,400 --> 00:40:07,400 When you're telling the story, we see activity in the frontal lobe, in the temporal lobe, in the visual lobe, 724 00:40:07,400 --> 00:40:11,400 and also in the limbic lobe as you're experiencing the emotional content of the story. 725 00:40:11,400 --> 00:40:16,400 And there, across the brain, we see about 30% of the total brain volume active. 726 00:40:16,400 --> 00:40:21,400 That's the most brain power for any individual test across all the different scans. 727 00:40:21,400 --> 00:40:28,400 With all of Tori's lobes engaged, his brain maxed out at a huge 30%. 728 00:40:28,400 --> 00:40:42,400 It's obvious that even at 100 miles per hour, this trick can't be done without devious deception. 729 00:40:42,400 --> 00:40:48,400 So it's back to where it all began, Fort Mason, for some tablecloth trickery. 730 00:40:48,400 --> 00:40:53,400 What's different about this setup than its predecessor? Actually, quite a lot. 731 00:40:53,400 --> 00:40:58,400 I started out by treating the entire tablecloth with a dry lubricant made for sailboat sails, 732 00:40:58,400 --> 00:41:01,400 and that should actually reduce its coefficient of friction. 733 00:41:01,400 --> 00:41:09,400 But most importantly, I then laid down on top of the tablecloth a sheet of plastic, 24 feet long, 734 00:41:09,400 --> 00:41:14,400 and mounted at the non-motorcycle end of the table, and then we set the table as normal. 735 00:41:14,400 --> 00:41:21,400 What this means is that between all the place settings on the tablecloth is a thin membrane on which everything sits. 736 00:41:21,400 --> 00:41:28,400 So the tablecloth should, in theory, slip out easy as you please without disturbing anything on the table. 737 00:41:28,400 --> 00:41:30,400 That's how I think they did it. 738 00:41:34,400 --> 00:41:35,400 Boy, I hope this works. 739 00:41:35,400 --> 00:41:36,400 That will work. 740 00:41:38,400 --> 00:41:41,400 That's it. Let's try it. 741 00:41:41,400 --> 00:41:43,400 Ha ha ha ha ha. 742 00:41:46,400 --> 00:41:50,400 This is tablecloth pull, the sheet. 743 00:41:50,400 --> 00:41:53,400 Three, two, one, go! 744 00:41:53,400 --> 00:41:59,400 This is it. Will they finally be able to pull a fast one and make the tablecloth disappear? 745 00:42:02,400 --> 00:42:04,400 Ha ha ha ha ha ha. 746 00:42:07,400 --> 00:42:08,400 And that's how it's done. 747 00:42:12,400 --> 00:42:14,400 Ha ha ha ha ha. 748 00:42:24,400 --> 00:42:26,400 Congratulations, we did it. 749 00:42:26,400 --> 00:42:27,400 It looks fantastic. 750 00:42:27,400 --> 00:42:29,400 Yeah, we disturbed one fork and that was it. 751 00:42:29,400 --> 00:42:31,400 I'll settle for that. 752 00:42:31,400 --> 00:42:32,400 So will I. 753 00:42:33,400 --> 00:42:38,400 Just like the Hollywood saying, you have to fake it till you make it. 754 00:42:38,400 --> 00:42:40,400 And that's Mission Accomplished. 755 00:42:42,400 --> 00:42:46,400 Well, we replicated the results. Where does that leave the story? The myth? 756 00:42:46,400 --> 00:42:49,400 There's no way they could have done this without faking it. It's busted. 757 00:42:49,400 --> 00:42:51,400 I totally agree. It's busted. Let's get out of here.