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On this episode of MythBusters,

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Adam and Jamie test hand-grenade hero myths.

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Inspired by Hollywood, will a heroic dive save the rest of the cast?

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That was incredible.

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Can water dampen the blast?

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And how about using a fridge to cool things off?

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Next, the team take to task self-help CDs.

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My body is strong.

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Can a course of self-hypnosis cure seasickness?

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Fix a B-phobia.

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There's your bleep.

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Or even change your eye color.

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And finally, Carrie Grant and Tori turn their stomachs

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with the latest Diet Coke and Mentos sensation sweeping the internet.

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Hi, Carrie.

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Will a candy and cola cascade cause your belly to blow?

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Oh, no!

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Who are the MythBusters?

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Adam Savage.

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Is everybody ready for diving?

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And Jamie Hydom.

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It's me, all worked up, just looking at it.

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That was beautiful.

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Between them more than 30 years of special effects experience.

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That was heavy.

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Joining them, Grant Imahara.

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That was on Run For Your Life.

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Tori Bellachy.

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Somebody ordered some exploding pants.

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And Carrie Byron.

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High explosives and electricity.

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They don't just tell the myths.

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They put them to the test.

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Be careful with those.

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They're not real topo props.

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So what's the myth?

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Well, these are part of our next myth, which is a Hollywood myth.

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Picture a group of intrepid heroes fighting evil adversaries

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when into their midst flies.

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A live grenade.

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Guess what happens next?

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Well, I would say no doubt the hero actor jumps on a grenade,

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thus protecting the rest of the people.

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Exactly right.

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That's the myth we want to test.

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We'll jumping on a grenade.

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Actually save those around you.

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It's another explosive tall tale from Tinseltown.

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The director calls action and our stuntman hero

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steps up to put his body on the line.

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Some special effects later,

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and although he's out of a job,

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the rest of the cast have miraculously survived.

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So what do you think our plan is?

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Well, why don't we start by making a human analog?

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Out of a ballistic media for our hero?

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Yeah, and we'll set off some grenades,

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both with and without our hero diving on them.

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All right.

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You know, we're also going to need an objective way

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of assessing the blast damage,

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both with and without the hero on the grenade.

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And just for fun, why don't we try some other ways

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of suppressing grenade blasts?

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That's great. Let's do it.

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First up, this movie myth needs a star

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who'll be willing to go to ground on a grenade.

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No one's volunteering, so Adam begins bodybuilding.

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Normally when we want to do a human analog on the show,

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we use ballistic gelatin or animal carcasses.

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This stuff is, we've used it on a few myths,

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it's still relatively new to us.

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It's a different kind of ballistic media,

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also based on animal protein, like ballistic gelatin.

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However, it's much more stable at room temperature.

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While the catering on this film set may be gloopy at best,

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oh, the boys have ensured the dummy will be fattened up.

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There are several things about this dummy that bear noting.

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The first is that it weighs the same as an adult male,

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because it's about the same size as an adult male,

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and it has the same density in terms of the ballistic material

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that we use and human flesh.

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So it should be perfect for our test.

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So we need a way to gauge the damage caused

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both with and without a hero grenade diver.

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So Jamie and I have come up with this, a set of these guys.

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These will be our plywood actors standing in for our movie band of brothers.

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They will be standing around where the grenade is happening,

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and we'll try one control without anyone jumping on it.

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See what kind of damage they take,

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and for take two, we'll put somebody jumping on the grenade

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and see what kind of damage they take then.

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So the cutout cast is ready for action.

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Now all they need is the perfect location.

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Watch the coin. You're getting sleepy. Very, very sleepy.

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Wait, why are we doing hypnosis again?

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Haven't we been here before?

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Yep, but the furor on the fan side over mesmeric mind-altering myths

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just won't let up.

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Despite busting the theory that you can plant a post-hypnotic suggestion

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in an unwilling dupe,

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I had a clear idea of what they wanted me to do.

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And proving as plausible that memory recall can be hypnotically enhanced.

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All of that I remembered after we relaxed with the hypnosis.

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The fans are demanding the team tackle self-hypnosis.

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Specifically, the CDs you find on the internet

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that claim you can change your life in any number of weird and wonderful ways.

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So this time we're going to try self-hypnosis mid.

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Those are the CDs that you listen to and they're supposed to influence you?

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Yeah, they're all over the internet.

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You can lose weight, regrow your hair, or even quit smoking.

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So why don't we each try one?

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Okay, well, I volunteer for the seasickness one

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because personally, I'm sick of being the guy that always has to vomit on camera.

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Alright, well, since I'm only afraid of commitment and I doubt that's going to change

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maybe we should bring in Adam and try to help him get over his extreme fear of bees.

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Alright, well, if you guys are going to work with rational myths

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I would like to try something a little more outlandish.

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I saw one where you can change your eye color

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and since that's a physical change

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you'll know if it works because it'll come back with like purple eyes.

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Alright, sounds good.

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Spin me, baby.

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As regular viewers will know

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Grant has a tendency to go a little green around the gills.

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I feel something coming up in my throat.

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This NASA knockoff, affectionately known as the chuck chair

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is used to simulate the sensation of seasickness.

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Uh-oh.

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And it works a treat on our very own barf machine.

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Before Grant can try his mythical seasickness cure

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Carrie and Tori need a pre-hypnosis baseline.

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Come on, I want to see you blow jumps.

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Alright, let's get us over with starting in 3, 2, 1.

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Round and round he goes.

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Oh, he's soft.

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Keep moving your head.

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Where his stomach stops, nobody knows.

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Here we go.

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Here we go.

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Adam, boy.

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Yeah.

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Adam, boy.

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Alright.

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Minute 1734.

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So now they've got a baseline.

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1730, totally puked.

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Grant can begin testing the self-hypnotic solution for seasickness.

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How you feeling better?

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Not especially.

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Okay.

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Meanwhile, Carrie will test a self-hypnosis CD she found on the web

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that claims she'll be able to turn her brown eyes as green as Grant

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after a trip in the Chuck chair.

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I want to do this as scientifically as possible.

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So I've come to Coret Vision Center.

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They're going to take really close-up pictures of my eyes

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so that I have a baseline control for the experiment.

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I'll go through my self-hypnosis and then when I come back,

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we'll take pictures in the exact same way and do comparison

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to see if I was able to change the color of my eye.

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The final challenge the team will tackle is Adam's deep-seated

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and unfounded fear of bees.

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I don't know why.

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I've been stung plenty of times.

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I'm not allergic.

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I just can't stand those things.

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They freak me out.

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And as always, the first step is a control

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to scientifically measure exactly how freaked out he gets.

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We have two instruments to measure Adam's stress level.

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The first is the pulse meter.

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And this is going to measure his heart rate.

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If he becomes frightened, his heart rate is going to increase

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and it's going to spike.

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We'll be able to see it here.

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The second piece of equipment is the galvanic skin response.

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Again, if he becomes frightened,

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he'll start to sweat a little bit

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and that will change that resistance measurement.

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To dial in on Adam's fear factor,

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he'll be spending 10 minutes with one arm

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in his own personal Room 101.

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Oh, that's a lot.

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Okay, heart rate spiking.

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It's pretty obvious from the start

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Adam is showing serious signs of stress.

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Your heart rate jumped up about 20 points.

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And once Adam gets his arm inside the box of bees,

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the team don't need fancy equipment

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to measure his stress levels.

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There's your bleep.

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Okay, okay.

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You really are a great person.

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I'm not a great person.

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Okay, okay.

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You really are afraid of bees, aren't you?

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I told you.

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I told you I'd do this for science

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and I told you I wouldn't like it one bit.

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The longest 10 minutes of Adam's life

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finally counts down.

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Three, two, one.

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Oh, dang.

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And Adam goes over the data percentages.

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That 100% sucked.

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So with the baseline set,

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we move on to phase two, self-hypnosis.

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All right, buddy.

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This is the CD that you're going to listen to for a week

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and this will help you get over your fear of bees.

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Did you guys make this?

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We ordered it online.

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So you're in good hands.

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It's a professional.

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I didn't want to listen to you going,

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dude, it's totally okay.

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It's totally okay.

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It's totally okay.

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I'm driving, it's totally okay.

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It's totally okay.

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After the break,

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Jamie and Adam get their teeth into the Hollywood hero myth.

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That was pretty solid.

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That was a nice macho funk.

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Jamie and Adam are testing the movie myth

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that diving onto a grenade

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will smother the blast

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and save your buddies.

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But with the neighbors likely to gripe about a grenade

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going off in the backyard,

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the team head for one of their favorite spots.

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When you want to blow up grenades,

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you've got to go to a place where they blow up grenades.

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Like the Alameda County Sheriff's Department's bomb range.

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That's where we are here.

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This place is a veritable mythbuster mecca.

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Tori, Grant and Carrie came here to blow up their pants.

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Those are exploding pants.

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And Jamie and Adam

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You're going to paint your house with explosives?

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Have a little TNT party of their own.

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Get your pirate face on.

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We're about to shoot some cannons.

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And in the pirate special,

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Redbeard and Cap and Heidemann

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tested the myth that cannonball splinters

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are more deadly than the cannonball.

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But this time the guys are going gun-ho with grenades

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and the mythbusters turn to some old friends.

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Frank Doyle and J.D. Nelson

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for the crucial explosive ingredients.

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Alright, so what do we got?

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Okay.

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So if I pull the pin on one of these things,

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it's going to go off, right?

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No, Jamie, these are a nerd.

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We wouldn't trust Adam near the live ones.

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But first, Adam can't resist testing a mini-myth.

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The thing I've always wondered is,

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can you really pull these out with your teeth?

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It works in the movies, but how about real life?

263
00:12:23,000 --> 00:12:24,000
Ah!

264
00:12:24,000 --> 00:12:26,000
No, I don't think so.

265
00:12:28,000 --> 00:12:31,000
Why don't you do this when you have a perfectly good finger

266
00:12:31,000 --> 00:12:32,000
right over here?

267
00:12:32,000 --> 00:12:35,000
It requires over ten pounds of pressure

268
00:12:35,000 --> 00:12:36,000
to pull a grenade pin.

269
00:12:36,000 --> 00:12:40,000
So this myth is busted, a bit like Adam's teeth.

270
00:12:40,000 --> 00:12:43,000
Seeing as Jamie and Adam's expertise in this field

271
00:12:43,000 --> 00:12:45,000
comes from the movies,

272
00:12:45,000 --> 00:12:48,000
why don't we start with a little Grenades 101?

273
00:12:48,000 --> 00:12:50,000
Now, what the heck are all these things?

274
00:12:50,000 --> 00:12:53,000
A hand grenade is basically a small, handheld explosive device.

275
00:12:53,000 --> 00:12:57,000
It's meant to be thrown, and after a certain delay,

276
00:12:57,000 --> 00:12:58,000
it goes off.

277
00:12:58,000 --> 00:13:00,000
And this is how they work.

278
00:13:00,000 --> 00:13:03,000
As everyone knows, the pin comes out first.

279
00:13:03,000 --> 00:13:05,000
That releases the striker lever,

280
00:13:05,000 --> 00:13:07,000
which hits the percussion cap,

281
00:13:07,000 --> 00:13:10,000
and that sets off the chemical fuse.

282
00:13:10,000 --> 00:13:14,000
Finally, the detonator sparks the packed explosive material,

283
00:13:14,000 --> 00:13:15,000
there's a big boom,

284
00:13:15,000 --> 00:13:19,000
and the metal casing fragments into deadly shrapnel.

285
00:13:21,000 --> 00:13:25,000
So, if the M67 is going to be our grenade today,

286
00:13:25,000 --> 00:13:28,000
do we get to pull the pin and throw them?

287
00:13:28,000 --> 00:13:31,000
Well, we won't be doing that today for safety reasons.

288
00:13:31,000 --> 00:13:33,000
We'll have a very controlled situation,

289
00:13:33,000 --> 00:13:37,000
and I think it's a good time for JD and myself

290
00:13:37,000 --> 00:13:40,000
to go and prepare the actual grenades that we're going to use today.

291
00:13:42,000 --> 00:13:48,000
So while Control Freaks, Frank and JD, set up a remote firing system,

292
00:13:48,000 --> 00:13:50,000
let's start assembly-lining this thing.

293
00:13:50,000 --> 00:13:53,000
It's time to call for our movie extras,

294
00:13:53,000 --> 00:13:56,000
but our leading man can kick back in his trailer,

295
00:13:56,000 --> 00:13:58,000
as this test is the control.

296
00:13:58,000 --> 00:14:01,000
We are going to detonate one of our grenades

297
00:14:01,000 --> 00:14:03,000
without anything inhibiting it,

298
00:14:03,000 --> 00:14:06,000
and we're going to see what it does to our figures standing around it.

299
00:14:06,000 --> 00:14:10,000
Then we'll have a baseline comparison of damage

300
00:14:10,000 --> 00:14:13,000
to compare all the other subsequent tests, too.

301
00:14:13,000 --> 00:14:16,000
As the director of this slice-of-movie mayhem,

302
00:14:16,000 --> 00:14:19,000
Adam Corey graphs his stuntmen.

303
00:14:19,000 --> 00:14:22,000
I am standing on the exact location

304
00:14:22,000 --> 00:14:25,000
where we're going to be detonating our series of grenade tests.

305
00:14:25,000 --> 00:14:28,000
The grenade is lethal within 15 feet

306
00:14:28,000 --> 00:14:32,000
and can cause injuries within 40 to 45 feet.

307
00:14:32,000 --> 00:14:36,000
The actors are placed at 5-foot intervals from the blast epicenter,

308
00:14:36,000 --> 00:14:39,000
and with everyone poised for action,

309
00:14:39,000 --> 00:14:42,000
JD brings the small package with the big boom.

310
00:14:42,000 --> 00:14:44,000
Okay, here it is.

311
00:14:44,000 --> 00:14:47,000
Well, it goes right where that cone is.

312
00:14:47,000 --> 00:14:49,000
With the live grenade in position,

313
00:14:49,000 --> 00:14:52,000
our experts clear the area and begin their preparation.

314
00:14:52,000 --> 00:14:57,000
We're going to be putting a blasting cap into the body of the grenade,

315
00:14:57,000 --> 00:15:00,000
into the explosive, running it by hard wire,

316
00:15:00,000 --> 00:15:02,000
all the way back to the fire control point,

317
00:15:02,000 --> 00:15:06,000
where we will do the button-pushing and initiate the explosion.

318
00:15:06,000 --> 00:15:08,000
With the cameras ready to roll,

319
00:15:08,000 --> 00:15:11,000
Jamie and Adam hunker down in the bunker,

320
00:15:11,000 --> 00:15:13,000
and with the system hot,

321
00:15:13,000 --> 00:15:15,000
Burn the hole!

322
00:15:15,000 --> 00:15:17,000
they call action.

323
00:15:17,000 --> 00:15:20,000
In three, two, one.

324
00:15:20,000 --> 00:15:22,000
Boom!

325
00:15:22,000 --> 00:15:24,000
That was pretty solid.

326
00:15:24,000 --> 00:15:25,000
That was nice.

327
00:15:25,000 --> 00:15:27,000
That was a nice macho funk.

328
00:15:27,000 --> 00:15:29,000
That really was.

329
00:15:29,000 --> 00:15:30,000
Whoa!

330
00:15:30,000 --> 00:15:32,000
And speaking of macho,

331
00:15:32,000 --> 00:15:36,000
the action actors look like they just shrugged off a grenade blast.

332
00:15:36,000 --> 00:15:40,000
But a closer look at the guy at 5 feet reveals the frightening truth.

333
00:15:40,000 --> 00:15:42,000
The telling part is a look at the backside.

334
00:15:42,000 --> 00:15:44,000
Wow!

335
00:15:44,000 --> 00:15:47,000
Little tiny fragments going all the way through the plywood.

336
00:15:47,000 --> 00:15:50,000
Yep, the fake blood department would have its hands full.

337
00:15:50,000 --> 00:15:53,000
But how about wooden actor number two?

338
00:15:53,000 --> 00:15:56,000
Well, he was 10 feet away,

339
00:15:56,000 --> 00:15:59,000
and his part in this movie is over.

340
00:15:59,000 --> 00:16:02,000
Right through the lung or the heart or something.

341
00:16:02,000 --> 00:16:06,000
Yeah, anything up in this K5 area like this,

342
00:16:06,000 --> 00:16:08,000
they're in real hurt city.

343
00:16:08,000 --> 00:16:11,000
And the body count for this scene continues to rise

344
00:16:11,000 --> 00:16:14,000
when they examine extra number three.

345
00:16:14,000 --> 00:16:15,000
Jamie, check it out man.

346
00:16:15,000 --> 00:16:16,000
Same thing on number three.

347
00:16:16,000 --> 00:16:17,000
Yep.

348
00:16:17,000 --> 00:16:19,000
One there, one there, one there.

349
00:16:19,000 --> 00:16:20,000
Down there, down there.

350
00:16:20,000 --> 00:16:21,000
Up there.

351
00:16:21,000 --> 00:16:24,000
The fourth casualty was one of the cameras.

352
00:16:24,000 --> 00:16:27,000
And this piece of plexiglass,

353
00:16:27,000 --> 00:16:29,000
which was protecting a second camera,

354
00:16:29,000 --> 00:16:34,000
gives a further illustration of the lethal power of grenade shrapnel.

355
00:16:34,000 --> 00:16:35,000
Hey Adam.

356
00:16:35,000 --> 00:16:36,000
Yep.

357
00:16:36,000 --> 00:16:37,000
Check this out.

358
00:16:37,000 --> 00:16:40,000
This is more revealing than the dummies in some ways.

359
00:16:40,000 --> 00:16:42,000
This was a brand spanking clean thing.

360
00:16:42,000 --> 00:16:44,000
I just stripped it before we put it in.

361
00:16:44,000 --> 00:16:47,000
And you know, on the dummies we can kind of see a lot of little flux,

362
00:16:47,000 --> 00:16:49,000
but look at all of them here.

363
00:16:49,000 --> 00:16:51,000
They're just like dozens of tiny things.

364
00:16:51,000 --> 00:16:55,000
And each of those could potentially travel inches into your body.

365
00:16:55,000 --> 00:16:58,000
Well, Frank says that these are going like,

366
00:16:58,000 --> 00:17:01,000
you know, 20, 24,000 feet per second,

367
00:17:01,000 --> 00:17:03,000
even though they're minuscule.

368
00:17:03,000 --> 00:17:05,000
That's like 10 times the speed of a bullet.

369
00:17:05,000 --> 00:17:06,000
Yeah, yeah.

370
00:17:06,000 --> 00:17:07,000
And that's a difference.

371
00:17:07,000 --> 00:17:10,000
Like, you know, they may be smaller than bird shot even,

372
00:17:10,000 --> 00:17:12,000
but they're going like several times as fast.

373
00:17:12,000 --> 00:17:15,000
A shotgun only is like, you know, eight, nine,

374
00:17:15,000 --> 00:17:17,000
nine hundred feet per second or so.

375
00:17:17,000 --> 00:17:18,000
That's terrifying.

376
00:17:18,000 --> 00:17:21,000
This is exactly the kind of thing I'm interested in.

377
00:17:21,000 --> 00:17:23,000
I wanted to see here.

378
00:17:23,000 --> 00:17:29,000
In the first place, the blast itself was somehow more powerful

379
00:17:29,000 --> 00:17:32,000
than some of the blasts that we've seen before,

380
00:17:32,000 --> 00:17:35,000
in the sense that it was a real like thunk.

381
00:17:35,000 --> 00:17:37,000
You could feel it in the ground.

382
00:17:37,000 --> 00:17:42,000
It was like guttural and like a real,

383
00:17:42,000 --> 00:17:45,000
wasn't a pop or anything or a big,

384
00:17:45,000 --> 00:17:46,000
or like that.

385
00:17:46,000 --> 00:17:48,000
It was a bang.

386
00:17:48,000 --> 00:17:51,000
I have a recommendation for how we proceed.

387
00:17:51,000 --> 00:17:54,000
Let's write down on the backs of the figures

388
00:17:54,000 --> 00:17:57,000
exactly how many hits all the way through

389
00:17:57,000 --> 00:17:59,000
that we got on each one.

390
00:17:59,000 --> 00:18:01,000
Then I'll spray paint them black again.

391
00:18:01,000 --> 00:18:02,000
So we go for the next test.

392
00:18:02,000 --> 00:18:03,000
We'll be able to count clean again,

393
00:18:03,000 --> 00:18:05,000
and we'll see if there's a drop in them.

394
00:18:05,000 --> 00:18:07,000
So after the first take,

395
00:18:07,000 --> 00:18:09,000
three of our actors have more holes in them

396
00:18:09,000 --> 00:18:11,000
than a bad B grade plot.

397
00:18:11,000 --> 00:18:13,000
The question now is,

398
00:18:13,000 --> 00:18:15,000
will there be fewer fatalities

399
00:18:15,000 --> 00:18:17,000
when our movie star takes a dive?

400
00:18:17,000 --> 00:18:19,000
Coming up.

401
00:18:19,000 --> 00:18:22,000
His tone of voice was sort of freaking me out.

402
00:18:22,000 --> 00:18:24,000
Did the voices in their head,

403
00:18:24,000 --> 00:18:26,000
phones make a difference?

404
00:18:26,000 --> 00:18:28,000
My body is strong.

405
00:18:28,000 --> 00:18:35,000
The mythbusters are once again going under for science.

406
00:18:35,000 --> 00:18:37,000
But hypnosis is not just the stuff

407
00:18:37,000 --> 00:18:41,000
of parlor tricks and B grade movie plots.

408
00:18:41,000 --> 00:18:44,000
Hypnotherapy, in conjunction with traditional medicine,

409
00:18:44,000 --> 00:18:46,000
has helped millions of people successfully

410
00:18:46,000 --> 00:18:48,000
battle wide-ranging games.

411
00:18:48,000 --> 00:18:51,000
The mythbusters are once again going under for science.

412
00:18:51,000 --> 00:18:53,000
But hypnosis is not just the stuff of parlor tricks

413
00:18:53,000 --> 00:18:55,000
and B grade movie plots.

414
00:18:55,000 --> 00:18:57,000
Hypnotherapy, in conjunction with traditional medicine,

415
00:18:57,000 --> 00:19:00,000
helps people battle wide-ranging afflictions,

416
00:19:00,000 --> 00:19:05,000
such as addiction, anorexia, and arthritis.

417
00:19:05,000 --> 00:19:07,000
But for the next week,

418
00:19:07,000 --> 00:19:10,000
three self-hypnosis or auto-suggestion goals

419
00:19:10,000 --> 00:19:13,000
are being put to the test.

420
00:19:13,000 --> 00:19:16,000
Okay, so this is day one

421
00:19:16,000 --> 00:19:22,000
with my seasickness self-hypnosis CD.

422
00:19:22,000 --> 00:19:24,000
As per the instructions on the box,

423
00:19:24,000 --> 00:19:27,000
you will listen to the disc once per day.

424
00:19:27,000 --> 00:19:29,000
Your body is strong.

425
00:19:29,000 --> 00:19:31,000
Your mind is strong.

426
00:19:31,000 --> 00:19:35,000
It can handle all kinds of situations.

427
00:19:35,000 --> 00:19:37,000
Grant.

428
00:19:37,000 --> 00:19:40,000
I really, really want this to work.

429
00:19:40,000 --> 00:19:45,000
I'm tired of being the seasickness guinea pig.

430
00:19:45,000 --> 00:19:50,000
I don't really have a whole lot of confidence in it working,

431
00:19:50,000 --> 00:19:55,000
but I am going to open my mind and give it a shot.

432
00:19:55,000 --> 00:19:59,000
While Grant is attempting what he thinks is an achievable goal,

433
00:19:59,000 --> 00:20:02,000
Carrie is at the far end of the hypnosis spectrum,

434
00:20:02,000 --> 00:20:07,000
with a far-fetched claim that by listening to her disc twice a day,

435
00:20:07,000 --> 00:20:09,000
she can change her eye color.

436
00:20:09,000 --> 00:20:14,000
Well, the hypnotist keeps saying that my subconscious

437
00:20:14,000 --> 00:20:18,000
is changing the amount of melanin in my eyes,

438
00:20:18,000 --> 00:20:23,000
and I should keep looking in the mirror to see if they change.

439
00:20:23,000 --> 00:20:30,000
And they will change because you have the power to change, Carrie.

440
00:20:30,000 --> 00:20:34,000
His tone of voice was sort of freaking me out.

441
00:20:34,000 --> 00:20:36,000
Adam, happy with his eye color,

442
00:20:36,000 --> 00:20:38,000
has found a self-hypnosis CD

443
00:20:38,000 --> 00:20:42,000
that will supposedly help him get over his apiophobia.

444
00:20:42,000 --> 00:20:47,000
For those of you that don't speak geek, that's a fear of bees.

445
00:20:47,000 --> 00:20:50,000
And as he settles down for his first session,

446
00:20:50,000 --> 00:20:55,000
Adam the skeptic is going against type and thinking positive thoughts.

447
00:20:55,000 --> 00:21:00,000
I feel like there is some utility in concentrating on the thing

448
00:21:00,000 --> 00:21:02,000
that one is phobic about,

449
00:21:02,000 --> 00:21:08,000
that me thinking seriously about bees sitting on my skin without stinging me

450
00:21:08,000 --> 00:21:12,000
will benefit and will show a benefit at the end of this week.

451
00:21:12,000 --> 00:21:15,000
Now, because watching the Mythbusters snooze

452
00:21:15,000 --> 00:21:18,000
doesn't make for Emmy award-winning TV,

453
00:21:18,000 --> 00:21:20,000
that's cut to the chase.

454
00:21:20,000 --> 00:21:24,000
All week Grant has been keeping up with his hypnosis schedule.

455
00:21:24,000 --> 00:21:27,000
But let's see if he can keep his stomach down.

456
00:21:27,000 --> 00:21:30,000
In three, two, one.

457
00:21:30,000 --> 00:21:33,000
Remember, before he embarked on self-hypnosis,

458
00:21:33,000 --> 00:21:35,000
he lasted just over 17 minutes.

459
00:21:35,000 --> 00:21:38,000
For the Myth to stand any chance of being confirmed,

460
00:21:38,000 --> 00:21:41,000
Grant has to go way past that.

461
00:21:41,000 --> 00:21:44,000
I'm really glad it's you that gets seasick, not us.

462
00:21:44,000 --> 00:21:46,000
But for total success,

463
00:21:46,000 --> 00:21:50,000
he'll have to keep his breakfast from seeing the light of day.

464
00:21:50,000 --> 00:21:53,000
I really want this to work.

465
00:21:53,000 --> 00:21:56,000
My body is strong.

466
00:21:56,000 --> 00:22:01,000
And it can handle all kinds of different situations.

467
00:22:01,000 --> 00:22:04,000
Grant, using his self-taught hypnotic techniques,

468
00:22:04,000 --> 00:22:07,000
remains focused for over half an hour.

469
00:22:07,000 --> 00:22:10,000
And despite Torey's best efforts...

470
00:22:10,000 --> 00:22:13,000
Come on, Grant. We all want to see chunks.

471
00:22:13,000 --> 00:22:17,000
Our very own Duke of Puk is staying strong.

472
00:22:17,000 --> 00:22:19,000
You realize if this test works,

473
00:22:19,000 --> 00:22:21,000
we're going to be standing here for a very long time.

474
00:22:21,000 --> 00:22:25,000
But on the 34-minute mark, the wait is over.

475
00:22:25,000 --> 00:22:28,000
And all Green Gill's Grant is back.

476
00:22:28,000 --> 00:22:30,000
Okay, stop. Let's...

477
00:22:30,000 --> 00:22:32,000
Stop. Stop. Stop.

478
00:22:32,000 --> 00:22:34,000
I can't do this anymore.

479
00:22:34,000 --> 00:22:37,000
So the self-hypnosis technique delayed the inevitable,

480
00:22:37,000 --> 00:22:40,000
but failed to outright cure his seasickness.

481
00:22:40,000 --> 00:22:44,000
I'm not sure if I'll ever be cured of seasickness,

482
00:22:44,000 --> 00:22:51,000
but what I do know is that the hypnosis CD did not cure him.

483
00:22:51,000 --> 00:22:55,000
While Grant recovers, it's time to look into Carrie's eyes.

484
00:22:55,000 --> 00:22:59,000
I'm back at UCSF for my follow-up appointment with the eye photographer,

485
00:22:59,000 --> 00:23:04,000
and I'm going to see if my week of self-hypnosis has changed the color of my eyes.

486
00:23:04,000 --> 00:23:08,000
But despite a daily hour and a half of self-hypnosis,

487
00:23:08,000 --> 00:23:11,000
Carrie's eyes stubbornly remain breath.

488
00:23:11,000 --> 00:23:13,000
So in your professional opinion,

489
00:23:13,000 --> 00:23:16,000
did I change the color of my eyes through self-hypnosis?

490
00:23:16,000 --> 00:23:20,000
I would have to say that they're unchanged, unfortunately.

491
00:23:20,000 --> 00:23:24,000
Despite her best efforts, it's a result Carrie was expecting.

492
00:23:24,000 --> 00:23:28,000
But is it even possible to change the color of your eyes?

493
00:23:28,000 --> 00:23:34,000
Well, you know, certainly there are certain drugs and chemicals

494
00:23:34,000 --> 00:23:37,000
that will change eye color.

495
00:23:37,000 --> 00:23:41,000
So it's certainly possible for eye color to change,

496
00:23:41,000 --> 00:23:47,000
but usually that has to do with some substance that's been either put onto the eye

497
00:23:47,000 --> 00:23:52,000
or something that's actually changing the metabolism of the cell.

498
00:23:52,000 --> 00:23:55,000
So, you know, certainly it's possible to change eye color.

499
00:23:55,000 --> 00:23:59,000
I'm just not quite sure how you'd achieve it through hypnosis.

500
00:23:59,000 --> 00:24:01,000
So I guess this one's busted.

501
00:24:01,000 --> 00:24:03,000
I'm afraid it is.

502
00:24:03,000 --> 00:24:07,000
Okay, last but not least is Adam our resident skeptic.

503
00:24:07,000 --> 00:24:10,000
The self-hypnosis of CD is total bunk.

504
00:24:10,000 --> 00:24:12,000
It's snake oil, as far as I'm concerned.

505
00:24:12,000 --> 00:24:15,000
In his baseline test, Adam's heart rate,

506
00:24:15,000 --> 00:24:19,000
galvanic skin response, and colorful vocabulary

507
00:24:19,000 --> 00:24:24,000
confirmed he's terrified of bees.

508
00:24:24,000 --> 00:24:28,000
The question is, after a solid week of listening to his self-hypnosis CD,

509
00:24:28,000 --> 00:24:32,000
will he fare any better when faced with the dreaded bee box?

510
00:24:32,000 --> 00:24:34,000
How are you feeling compared to last time?

511
00:24:34,000 --> 00:24:37,000
I'm feeling a little better than I did last time.

512
00:24:37,000 --> 00:24:39,000
Apparently you're lying.

513
00:24:41,000 --> 00:24:42,000
Doesn't look like it.

514
00:24:42,000 --> 00:24:46,000
Adam's trying to chuff it out, but the numbers don't lie.

515
00:24:46,000 --> 00:24:52,000
His heart rate and stress levels are buzzing at the same high rates as the baseline test.

516
00:24:52,000 --> 00:24:54,000
Oh, none of them landed on me.

517
00:24:54,000 --> 00:24:57,000
And a few close encounters of the flying kind

518
00:24:57,000 --> 00:25:02,000
prove that ten minutes with the bees is still ten minutes of torture,

519
00:25:02,000 --> 00:25:04,000
which leaves just one conclusion.

520
00:25:05,000 --> 00:25:08,000
Okay guys, self-hypnosis, what's a verdict?

521
00:25:08,000 --> 00:25:10,000
I think it's obvious that this is busted.

522
00:25:10,000 --> 00:25:13,000
Yeah, but you never believed that your eyes could change color.

523
00:25:13,000 --> 00:25:16,000
True, but I followed all the instructions on the CD

524
00:25:16,000 --> 00:25:19,000
and I really put my mind into it and still got nothing,

525
00:25:19,000 --> 00:25:21,000
and Adam got the same result.

526
00:25:21,000 --> 00:25:25,000
I know that's too bad, because even after his hypnosis, he's still afraid of bees.

527
00:25:25,000 --> 00:25:27,000
Well, I think mine is the most telling result.

528
00:25:27,000 --> 00:25:29,000
And you really wanted it to work.

529
00:25:29,000 --> 00:25:32,000
Yeah, I wanted it to work, I thought it could work,

530
00:25:32,000 --> 00:25:36,000
and there was a delay in the seasickness, but ultimately it failed to cure me.

531
00:25:36,000 --> 00:25:38,000
Yep, you still blew chunks.

532
00:25:38,000 --> 00:25:40,000
So this one's busted.

533
00:25:40,000 --> 00:25:42,000
Busted. Busted.

534
00:25:52,000 --> 00:25:55,000
In the myth of the Hollywood hand-grenade hero,

535
00:25:55,000 --> 00:25:58,000
Adam and Jamie are having a blast.

536
00:25:58,000 --> 00:26:02,000
A control test minus our Superman savior

537
00:26:02,000 --> 00:26:05,000
left three extras looking for work.

538
00:26:05,000 --> 00:26:07,000
One there, one there, one there,

539
00:26:07,000 --> 00:26:09,000
down there, down there. Up there.

540
00:26:09,000 --> 00:26:11,000
Now it's time for take two

541
00:26:11,000 --> 00:26:14,000
at our hero's straight out of central casting.

542
00:26:14,000 --> 00:26:17,000
Hey guys, look out!

543
00:26:17,000 --> 00:26:20,000
A grenade has landed near you.

544
00:26:20,000 --> 00:26:22,000
Allow me to be your savior.

545
00:26:22,000 --> 00:26:23,000
You got the bag?

546
00:26:23,000 --> 00:26:24,000
Uh-huh.

547
00:26:29,000 --> 00:26:32,000
This is our hero right here,

548
00:26:32,000 --> 00:26:37,000
and it should provide a fantastic testing medium

549
00:26:37,000 --> 00:26:41,000
to show what kind of resistance the body will provide

550
00:26:41,000 --> 00:26:43,000
to the fragmentation from a grenade

551
00:26:43,000 --> 00:26:46,000
and how much it'll protect your body standing around you.

552
00:26:46,000 --> 00:26:49,000
Well, all of our figures are ready to go,

553
00:26:49,000 --> 00:26:51,000
so all that's left is to lay the charge.

554
00:26:51,000 --> 00:26:54,000
We'll clear out and wait for your guys ready to go.

555
00:26:54,000 --> 00:26:56,000
It won't take very long. We're all set.

556
00:26:56,000 --> 00:26:57,000
Excellent.

557
00:26:57,000 --> 00:27:00,000
Our leading man is laid on the grenade,

558
00:27:00,000 --> 00:27:03,000
his body and the myth on the line.

559
00:27:03,000 --> 00:27:05,000
If his three supporting actors survive,

560
00:27:05,000 --> 00:27:08,000
this tall tale will be confirmed.

561
00:27:13,000 --> 00:27:15,000
It's worth pausing for a second to talk about

562
00:27:15,000 --> 00:27:17,000
the origin of the word grenade.

563
00:27:17,000 --> 00:27:20,000
Well sure, it comes from the French word for pomegranate,

564
00:27:20,000 --> 00:27:22,000
which is a granate.

565
00:27:22,000 --> 00:27:25,000
Does a grenade look anything like a pomegranate?

566
00:27:25,000 --> 00:27:28,000
Well, not now, but in the early days they were larger,

567
00:27:28,000 --> 00:27:30,000
they were about the same size as a pomegranate,

568
00:27:30,000 --> 00:27:33,000
and they were filled with shot that was very similar

569
00:27:33,000 --> 00:27:34,000
to pomegranate seeds.

570
00:27:34,000 --> 00:27:36,000
Oh, cool.

571
00:27:36,000 --> 00:27:40,000
Well, this is it. Hollywood on trial once again.

572
00:27:40,000 --> 00:27:42,000
Now, if the movies are to be believed,

573
00:27:42,000 --> 00:27:45,000
our hero stuntman has to absorb the full impact of the grenade.

574
00:27:45,000 --> 00:27:47,000
He has to save all his mates.

575
00:27:47,000 --> 00:27:51,000
In three, two, one.

576
00:27:53,000 --> 00:27:55,000
That was brutal.

577
00:27:55,000 --> 00:27:56,000
Well, one thing's for sure,

578
00:27:56,000 --> 00:28:00,000
there'll be no happy ending for this celluloid savior.

579
00:28:00,000 --> 00:28:03,000
He did not have a good day. He was a hero.

580
00:28:04,000 --> 00:28:07,000
Yep, our hero's role has been cut short,

581
00:28:07,000 --> 00:28:11,000
but did his selfless act save the cast of cutouts?

582
00:28:11,000 --> 00:28:14,000
There's a significant chunk out of the front here,

583
00:28:14,000 --> 00:28:22,000
but out of the back, I see one, two, three, four.

584
00:28:22,000 --> 00:28:24,000
Yeah, just four. That's it.

585
00:28:24,000 --> 00:28:28,000
So, Wooden Actor number one took ten fewer hits

586
00:28:28,000 --> 00:28:30,000
than the control blast.

587
00:28:30,000 --> 00:28:32,000
But how bad were the splinters?

588
00:28:32,000 --> 00:28:34,000
This injury right here is very telling,

589
00:28:34,000 --> 00:28:40,000
because what it shows us is that while it looks like a lot here,

590
00:28:40,000 --> 00:28:43,000
we look around on the backside and there's not a mark.

591
00:28:43,000 --> 00:28:48,000
In the previous test, without anything over the grenade at all,

592
00:28:48,000 --> 00:28:51,000
if we saw a hole in the front, we saw a hole in the back.

593
00:28:51,000 --> 00:28:55,000
So it's clearly slowing down the velocity of the projectiles

594
00:28:55,000 --> 00:28:57,000
coming off of the grenade.

595
00:28:57,000 --> 00:28:59,000
And the guy at ten feet?

596
00:28:59,000 --> 00:29:01,000
Well, look at that.

597
00:29:01,000 --> 00:29:03,000
I don't see a single one.

598
00:29:03,000 --> 00:29:06,000
This looks like he might have really saved his buddies here.

599
00:29:06,000 --> 00:29:08,000
There's no doubt about it.

600
00:29:08,000 --> 00:29:11,000
This movie myth is looking confirmed.

601
00:29:11,000 --> 00:29:13,000
Well, there you go.

602
00:29:13,000 --> 00:29:15,000
I'm pretty amazed.

603
00:29:15,000 --> 00:29:20,000
I wasn't expecting to see such a definitive result.

604
00:29:20,000 --> 00:29:23,000
Of the eight figures we had standing around here,

605
00:29:23,000 --> 00:29:25,000
when our hero jumped on the grenade,

606
00:29:25,000 --> 00:29:28,000
only his buddy who was five feet away,

607
00:29:28,000 --> 00:29:31,000
Buddy number one, sustained any real damage.

608
00:29:31,000 --> 00:29:34,000
And most of that was to his legs.

609
00:29:34,000 --> 00:29:37,000
Buddies number two and three are effectively unscathed,

610
00:29:37,000 --> 00:29:39,000
as are four through eight.

611
00:29:39,000 --> 00:29:41,000
So the rest of the cast survived.

612
00:29:41,000 --> 00:29:44,000
Unfortunately, our action hero from now on

613
00:29:44,000 --> 00:29:47,000
will only be able to play bit parts.

614
00:29:59,000 --> 00:30:01,000
Cally started it.

615
00:30:01,000 --> 00:30:04,000
Adam and Jamie investigated it.

616
00:30:04,000 --> 00:30:06,000
That's a much more vigorous reaction.

617
00:30:06,000 --> 00:30:08,000
And then they rubbed Goldberg in.

618
00:30:08,000 --> 00:30:12,000
But incredibly, the foamy fountain is yet to run dry.

619
00:30:12,000 --> 00:30:14,000
Whoa, hey!

620
00:30:14,000 --> 00:30:15,000
There it is.

621
00:30:15,000 --> 00:30:17,000
Diet Coke and Mentos again?

622
00:30:17,000 --> 00:30:19,000
Are you kidding me?

623
00:30:19,000 --> 00:30:22,000
Come on, is this phenomenon not over yet?

624
00:30:22,000 --> 00:30:24,000
Well, I know we've done it a lot,

625
00:30:24,000 --> 00:30:26,000
but there's this video that's going around the internet.

626
00:30:26,000 --> 00:30:29,000
A guy eats Mentos, drinks Diet Coke,

627
00:30:29,000 --> 00:30:33,000
and then passes out because his stomach supposedly explodes.

628
00:30:33,000 --> 00:30:35,000
You know we have to test that.

629
00:30:35,000 --> 00:30:38,000
I'm not sure if you can tell, but I'm not sure.

630
00:30:38,000 --> 00:30:41,000
I'm just trying to blow up some stomachs with Diet Coke and Mentos.

631
00:30:41,000 --> 00:30:43,000
Yeah, nice.

632
00:31:06,000 --> 00:31:12,000
Thanks to the mythbusters, there's no mystery to the cola cascade.

633
00:31:12,000 --> 00:31:18,000
But like old faithful, this gassy geyser just keeps on keeping on.

634
00:31:18,000 --> 00:31:19,000
There you go.

635
00:31:19,000 --> 00:31:20,000
That's so cool.

636
00:31:20,000 --> 00:31:22,000
I've never actually done that before.

637
00:31:22,000 --> 00:31:23,000
Really?

638
00:31:23,000 --> 00:31:24,000
No.

639
00:31:24,000 --> 00:31:26,000
You know, that wasn't even as high as I've seen them.

640
00:31:26,000 --> 00:31:28,000
God, I've seen like 30 feet.

641
00:31:28,000 --> 00:31:32,000
But today we're asking, can the fizzy fountain burst your belly?

642
00:31:32,000 --> 00:31:34,000
Here's a sentence you don't hear every day.

643
00:31:34,000 --> 00:31:37,000
The next step is a spot of stomach shopping.

644
00:31:37,000 --> 00:31:42,000
And seeing as Carrie thinks awful is awful, guess who gets to go?

645
00:31:42,000 --> 00:31:46,000
Of course, I'm the one they pick when there's anything nasty to pick up.

646
00:31:46,000 --> 00:31:48,000
That's the stomach.

647
00:31:48,000 --> 00:31:51,000
It looks like it's full of stuff.

648
00:31:51,000 --> 00:31:54,000
Yeah, let's get some residue in it.

649
00:31:54,000 --> 00:31:57,000
I'm not sure if that's bile or what coming out of there,

650
00:31:57,000 --> 00:32:01,000
but that yellow substance is, that looks pretty nasty.

651
00:32:01,000 --> 00:32:04,000
I am so glad I already ate lunch.

652
00:32:04,000 --> 00:32:09,000
All right, sir, can you please wrap up for gooey gnarly stomachs to go?

653
00:32:09,000 --> 00:32:11,000
First mission accomplished.

654
00:32:11,000 --> 00:32:15,000
A little bit grosser than I expected, but I think I know how they work.

655
00:32:15,000 --> 00:32:20,000
Next step, back to the shop so I can outdo the grossness and try to blur these up.

656
00:32:20,000 --> 00:32:25,000
Inside at Indigestion HQ, oh, jeez!

657
00:32:25,000 --> 00:32:32,000
The team's first job is to prepare these pig stomachs for their diet of Diet Coke and Mentos.

658
00:32:35,000 --> 00:32:38,000
Look at the ooze, that's cool.

659
00:32:38,000 --> 00:32:42,000
First, they have to drain the bellies of a mystery jelly.

660
00:32:42,000 --> 00:32:45,000
That is an amazingly bad smell.

661
00:32:52,000 --> 00:32:54,000
Oh my God!

662
00:32:55,000 --> 00:33:01,000
Oh, yeah, after you haven't eaten for a while, you know, and you're just throwing up bile, this is just bile.

663
00:33:01,000 --> 00:33:06,000
And speaking of throwing up, trust Tori to take it too far.

664
00:33:11,000 --> 00:33:12,000
You okay?

665
00:33:12,000 --> 00:33:13,000
Yep, the...

666
00:33:13,000 --> 00:33:15,000
Hi, Carrie.

667
00:33:15,000 --> 00:33:16,000
Carrie, the cable ties.

668
00:33:16,000 --> 00:33:17,000
Come to me, darling.

669
00:33:17,000 --> 00:33:18,000
Carrie, the cable ties.

670
00:33:18,000 --> 00:33:19,000
Come on, Carrie.

671
00:33:19,000 --> 00:33:21,000
Carrie, come on.

672
00:33:21,000 --> 00:33:24,000
Never leave your position, Carrie.

673
00:33:26,000 --> 00:33:28,000
Ahem.

674
00:33:29,000 --> 00:33:36,000
With the pig and Carrie's stomach empty, the team can finish rigging out our test subject with his internal organ.

675
00:33:36,000 --> 00:33:42,000
And to ensure they replicate the myth's circumstances accurately, Carrie has a plan.

676
00:33:42,000 --> 00:33:48,000
We want to make this situation as realistic as possible so we need our stomach to have stomach acids.

677
00:33:48,000 --> 00:33:53,000
We didn't want just the dead bile that had been sitting in there, so we drained out the stomach,

678
00:33:53,000 --> 00:33:59,000
and now we're going to add a fluid that will have the same acidity as a stomach after it's added a little food.

679
00:33:59,000 --> 00:34:02,000
Okay, that operation's complete.

680
00:34:02,000 --> 00:34:03,000
Nice work, doctor.

681
00:34:03,000 --> 00:34:04,000
Thank you, doctor.

682
00:34:04,000 --> 00:34:07,000
I think the patient's gonna recover just nicely.

683
00:34:07,000 --> 00:34:14,000
With the deaf touch of amateur butchers, Dr. Imahara and Dr. Baleici have added the acid.

684
00:34:14,000 --> 00:34:16,000
It's my flesh bagpipe.

685
00:34:16,000 --> 00:34:19,000
But the unfortunate patient ain't done yet.

686
00:34:19,000 --> 00:34:27,000
They rig his esophagus with a tube and valve system so the team can simulate the delivery of a lunch of candy and cola.

687
00:34:27,000 --> 00:34:29,000
Nasty stuff!

688
00:34:29,000 --> 00:34:38,000
Okay, so this is the experimental test setup for the myth that if you drink a bunch of Diet Coke and eat a bunch of Mentos, your stomach will explode.

689
00:34:38,000 --> 00:34:43,000
We have standing in for the human stomach, a pig stomach, which is a good analog for that.

690
00:34:43,000 --> 00:34:46,000
One of the ends is clamped off with a hemostat.

691
00:34:46,000 --> 00:35:00,000
Inside the stomach, we have a dilution of muriatic acid, and that is diluted to a pH of between 2 and 3 to match what your normal human stomach would have.

692
00:35:00,000 --> 00:35:05,000
Going into the stomach, we have a plastic tube that goes up to this junction.

693
00:35:05,000 --> 00:35:09,000
The idea is that we put the Diet Coke in from one side.

694
00:35:09,000 --> 00:35:12,000
The bottle goes up here, we squeeze it, the coke goes down the tube.

695
00:35:12,000 --> 00:35:15,000
After the Diet Coke's in, we clamp this off.

696
00:35:15,000 --> 00:35:18,000
Then, this is the Mentos side.

697
00:35:18,000 --> 00:35:23,000
We'll drop a nut in with this magnet in place, and then load the Mentos one by one.

698
00:35:23,000 --> 00:35:30,000
When we're ready to trigger, we pull the magnet away, all the Mentos go in the stomach at once.

699
00:35:30,000 --> 00:35:40,000
This will have been clamped off, and hopefully the Mentos and Diet Coke concoction will expand and expand and expand, and...

700
00:35:41,000 --> 00:35:43,000
Or shall we think?

701
00:35:43,000 --> 00:35:44,000
Release!

702
00:35:44,000 --> 00:35:45,000
Next on MythBusters.

703
00:35:48,000 --> 00:35:52,000
Carrie Grant and Tori bloat and then blow up their belly.

704
00:35:52,000 --> 00:35:54,000
That got big!

705
00:36:11,000 --> 00:36:19,000
Supposedly after lunching on Diet Coke and Mentos, this guy ended up in ER with a torn tummy.

706
00:36:19,000 --> 00:36:27,000
To find the truth, the team are about to feed this pig's stomach a liter of Diet Coke and a handful of Mentos.

707
00:36:27,000 --> 00:36:29,000
What do you think is going to happen?

708
00:36:29,000 --> 00:36:32,000
I don't think it's going to explode.

709
00:36:32,000 --> 00:36:33,000
Really?

710
00:36:33,000 --> 00:36:35,000
Yeah, 100% it's not going to explode.

711
00:36:35,000 --> 00:36:42,000
I think they'll be a huge reaction. They'll probably come up here, and more likely they'll be rig failure before there's going to be stomach failure.

712
00:36:42,000 --> 00:36:45,000
Okay, the first ingredient is the Diet Coke.

713
00:36:45,000 --> 00:36:52,000
And when our skeletal friend guzzles the gassy soda, his stomach bloats out so much, Grant has a change of heart.

714
00:36:52,000 --> 00:36:53,000
Whoa!

715
00:36:55,000 --> 00:36:57,000
I'm revising my estimates!

716
00:36:57,000 --> 00:36:59,000
That looks uncomfortable.

717
00:36:59,000 --> 00:37:02,000
Next, the Mentos are dropped into a holding tube.

718
00:37:02,000 --> 00:37:04,000
Okay, all seven are in.

719
00:37:04,000 --> 00:37:06,000
Clamp it.

720
00:37:06,000 --> 00:37:07,000
Clamping.

721
00:37:07,000 --> 00:37:09,000
Here we go, with a belly go ballistic.

722
00:37:09,000 --> 00:37:12,000
Three, two, one!

723
00:37:14,000 --> 00:37:15,000
What happened?

724
00:37:15,000 --> 00:37:16,000
Did it go?

725
00:37:16,000 --> 00:37:17,000
Nothing happened.

726
00:37:17,000 --> 00:37:20,000
Did they make them down? Did it get in?

727
00:37:20,000 --> 00:37:22,000
I thought there was supposed to be a reaction. What's going on here?

728
00:37:22,000 --> 00:37:23,000
Do you see anything?

729
00:37:23,000 --> 00:37:29,000
Uh, nope. The Mentos are definitely in there, but where's the famous foamy fountain?

730
00:37:29,000 --> 00:37:33,000
Our soda super sluice are on it.

731
00:37:33,000 --> 00:37:43,000
Let's go over the things that are different between the experiment we just did and the reaction we know which is really explosive, which is dropping the Mentos into the two liter bottle.

732
00:37:43,000 --> 00:37:50,000
Okay, well first thing is we're actually pouring it into the stomach and it's foaming up a lot.

733
00:37:50,000 --> 00:37:56,000
And when you normally do this experiment, you're adding the Mentos to the soda, which is still in the bottle.

734
00:37:56,000 --> 00:38:00,000
And the other thing that's different about the stomach, it has the muriatic acid in it.

735
00:38:00,000 --> 00:38:05,000
So that might be doing something to change the reaction between the Diet Coke and the Mentos.

736
00:38:05,000 --> 00:38:10,000
Their plan is to use a process of elimination to work out what's happening.

737
00:38:10,000 --> 00:38:15,000
At a few simple bench tests later, they confirm the acid is not the culprit.

738
00:38:15,000 --> 00:38:21,000
Okay, so the muriatic acid doesn't seem to be having an effect on the Mentos and Diet Coke reaction.

739
00:38:21,000 --> 00:38:27,000
Next, they look into their method of squeezing the bottle to pour the Coke quickly into the stomach.

740
00:38:27,000 --> 00:38:28,000
And it's going down.

741
00:38:28,000 --> 00:38:31,000
No, wait. No, it's going down.

742
00:38:31,000 --> 00:38:33,000
Yep, there's your problem.

743
00:38:33,000 --> 00:38:37,000
Okay, so the pour is what's killing all our carbonation and that's preventing the reaction.

744
00:38:37,000 --> 00:38:39,000
Yeah, totally.

745
00:38:39,000 --> 00:38:47,000
By copying the video where our guy guzzles his cola quickly, the tests have shown the soda loses most of its CO2.

746
00:38:47,000 --> 00:38:54,000
So they're going to redo the test, trying to retain the fizz with a slow controlled pour.

747
00:38:54,000 --> 00:38:58,000
And because the stomach's opaque, they can't see what's going on.

748
00:38:58,000 --> 00:39:04,000
So we've replaced the pig stomach with a translucent balloon.

749
00:39:04,000 --> 00:39:16,000
And that really gives a better idea of how much liquid's going in, if we're generating a lot of gas or hopefully what's going on.

750
00:39:16,000 --> 00:39:20,000
But despite the gentle pour, the result is the same.

751
00:39:20,000 --> 00:39:26,000
Through the clear balloon, you can see the soda sizzling before the Mentos have even been added.

752
00:39:26,000 --> 00:39:33,000
No matter how slow the pour you have, any agitation is going to release all of this foam.

753
00:39:33,000 --> 00:39:38,000
Which confirms the simple act of drinking the Diet Coke releases the CO2.

754
00:39:38,000 --> 00:39:42,000
And without its fizz, the candy and cola can't do the biz.

755
00:39:42,000 --> 00:39:49,000
I think that we've conclusively proven that if you eat Mentos and drink Diet Coke, you're not going to explode your stomach.

756
00:39:49,000 --> 00:39:55,000
For the sake of science, I think we should continue on and try and eliminate some of these variables.

757
00:39:55,000 --> 00:40:03,000
Well one way we can get rid of the loss of gas through the pour is we just go directly to the bottle and have the Mentos drop into the bottle.

758
00:40:03,000 --> 00:40:07,000
So we're not actually agitating the Diet Coke as we're pouring.

759
00:40:07,000 --> 00:40:16,000
So the next setup is a completely unrealistic scenario, which involves dropping the Mentos into the Coke with the stomach already attached.

760
00:40:16,000 --> 00:40:23,000
Final stomach and Mentos experiment in three, two, one, release!

761
00:40:29,000 --> 00:40:31,000
It's like the New Year's Day parade!

762
00:40:31,000 --> 00:40:33,000
It's getting bigger!

763
00:40:33,000 --> 00:40:34,000
You know?

764
00:40:34,000 --> 00:40:37,000
God, can you imagine that's in your stomach?

765
00:40:37,000 --> 00:40:40,000
But still, no explosion.

766
00:40:40,000 --> 00:40:41,000
No explosion.

767
00:40:41,000 --> 00:40:45,000
But I guarantee he really threw up.

768
00:40:45,000 --> 00:40:46,000
But I want to see an explosion.

769
00:40:46,000 --> 00:40:49,000
I mean, how are we going to get one of these stomachs to blow up?

770
00:40:49,000 --> 00:40:50,000
Compressed air.

771
00:40:50,000 --> 00:40:51,000
Are you serious?

772
00:40:51,000 --> 00:40:52,000
Yeah!

773
00:40:54,000 --> 00:40:56,000
The myth is well and truly busted.

774
00:40:56,000 --> 00:40:58,000
But boys will be boys.

775
00:40:58,000 --> 00:41:00,000
They want a burst belly.

776
00:41:00,000 --> 00:41:06,000
This is 30 psi, compressed air, directly into the stomach.

777
00:41:06,000 --> 00:41:10,000
Three, two, one.

778
00:41:10,000 --> 00:41:12,000
Look at that gassy bloated feeling.

779
00:41:12,000 --> 00:41:13,000
Whoa!

780
00:41:16,000 --> 00:41:18,000
That wasn't very long.

781
00:41:18,000 --> 00:41:20,000
That got big!

782
00:41:20,000 --> 00:41:25,000
And if you don't want a trip to ER, don't go sucking on compressed air at home.

783
00:41:25,000 --> 00:41:32,000
But as for Diet Coke and Mentos, they're clearly not the explosive combo the internet would have us believe.

784
00:41:32,000 --> 00:41:34,000
Well, that one's busted.

785
00:41:34,000 --> 00:41:36,000
Yeah, the myth and the pig stomach.

786
00:41:36,000 --> 00:41:40,000
So does that mean this Diet Coke and Mentos thing is finally over?

787
00:41:40,000 --> 00:41:43,000
Well, actually, I heard this one about this guy.

788
00:41:43,000 --> 00:41:45,000
He had a jet pack.

789
00:41:54,000 --> 00:41:58,000
Adam and Jamie have been blown away by the results of a movie myth.

790
00:41:58,000 --> 00:42:01,000
This looks like he might have really saved his buddies here.

791
00:42:01,000 --> 00:42:04,000
But the director hasn't called rap yet.

792
00:42:04,000 --> 00:42:08,000
The guys have a couple more Hollywood hero techniques to test.

793
00:42:09,000 --> 00:42:10,000
So what's next?

794
00:42:10,000 --> 00:42:16,000
Well, I'm thinking about this other Hollywood scenario I've seen where the hero doesn't dive on the grenade.

795
00:42:16,000 --> 00:42:20,000
He actually throws it into a bucket of water to protect those around him.

796
00:42:20,000 --> 00:42:22,000
Well, it makes sense to me.

797
00:42:22,000 --> 00:42:23,000
It's easy to test.

798
00:42:23,000 --> 00:42:26,000
I mean, get a bucket of water, drop a grenade in it, see what happens.

799
00:42:26,000 --> 00:42:32,000
Yeah, I'm curious to find out if it actually dampens the grenade blast or actually makes it worse or does nothing at all.

800
00:42:32,000 --> 00:42:36,000
Well, we have played around with explosives and water before.

801
00:42:36,000 --> 00:42:42,000
Remember on another Hollywood myth, we tried to open a safe by filling it with water and setting off an explosive.

802
00:42:42,000 --> 00:42:44,000
And it transmitted the energy quite well.

803
00:42:44,000 --> 00:42:45,000
It was very effective.

804
00:42:45,000 --> 00:42:47,000
I don't know what it'll do with a bucket.

805
00:42:47,000 --> 00:42:51,000
Wow! That worked beautifully!

806
00:42:51,000 --> 00:42:53,000
Well, let's give it a shot.

807
00:42:55,000 --> 00:43:00,000
Back at the range, Adam and Jamie have rigged the live grenade and dunked it in a bucket of water.

808
00:43:00,000 --> 00:43:05,000
The question is, will this hand grenade hero technique actually dampen the blast?

809
00:43:05,000 --> 00:43:11,000
Or is it another example of Hollywood screenwriters rewriting the laws of physics?

810
00:43:11,000 --> 00:43:17,000
Based on what I know, I think this may well be our best technique of all the ones that we tried.

811
00:43:17,000 --> 00:43:23,000
Because we know that water resists things moving through it at high speed.

812
00:43:23,000 --> 00:43:29,000
And, you know, these particles that are being sent out are really quite small.

813
00:43:29,000 --> 00:43:35,000
So, you know, I think the water may even be especially effective at slowing them down.

814
00:43:35,000 --> 00:43:38,000
In three, two, one!

815
00:43:38,000 --> 00:43:42,000
Whoa! Dude! That was incredible!

816
00:43:45,000 --> 00:43:47,000
Is that part of our bucket? That's the bottom.

817
00:43:47,000 --> 00:43:48,000
Yeah.

818
00:43:51,000 --> 00:43:55,000
Well, the bucket of water definitely kicked the bucket.

819
00:43:55,000 --> 00:43:58,000
But the crew is looking in pretty good shape.

820
00:43:58,000 --> 00:44:03,000
Compared to the control test, the shrapnel damage seems superficial.

821
00:44:03,000 --> 00:44:05,000
Until they take a good look at this guy.

822
00:44:05,000 --> 00:44:08,000
Yeah, that's the first one we've seen through somebody's head.

823
00:44:08,000 --> 00:44:11,000
Which causes Adam to leap to a hasty conclusion.

824
00:44:11,000 --> 00:44:14,000
So, yeah, strangely, it's looking to me.

825
00:44:14,000 --> 00:44:20,000
Like jumping on a grenade is still best, and the bucket of water is kind of terrible.

826
00:44:21,000 --> 00:44:25,000
But Jamie gives that theory a bucketing.

827
00:44:25,000 --> 00:44:27,000
Actually, I kind of disagree about this one.

828
00:44:27,000 --> 00:44:35,000
Because all of the previous ones required that our hero be close to the actual grenade when it went off.

829
00:44:35,000 --> 00:44:38,000
If we've got a bucket of water, we drop it in the water,

830
00:44:38,000 --> 00:44:43,000
this greatly reduced the total number of hits greater than anything that we've done,

831
00:44:43,000 --> 00:44:47,000
and your hero might survive it.

832
00:44:48,000 --> 00:44:53,000
In the water safe story, the water turned out to be more efficient at transferring the blast pressure.

833
00:44:53,000 --> 00:44:58,000
But in this case, we're more interested in the frag from the grenade casing,

834
00:44:58,000 --> 00:45:02,000
and the fact is that the water reduced the total amount of frag hits.

835
00:45:02,000 --> 00:45:06,000
So that means that the blast was marginally more survivable.

836
00:45:06,000 --> 00:45:10,000
So when it comes to saving your friends from an exploding grenade,

837
00:45:10,000 --> 00:45:13,000
the bucket approach really does hold water.

838
00:45:14,000 --> 00:45:19,000
And so to our final hand grenade hero technique.

839
00:45:19,000 --> 00:45:21,000
It's a grenade. Get rid of it.

840
00:45:21,000 --> 00:45:29,000
In this tall tale on TV, our hero attempts to blunt the blast by dropping the ticking time bomb in cold storage.

841
00:45:35,000 --> 00:45:40,000
To replicate that small screen scene, the first thing they'll need is a fridge.

842
00:45:41,000 --> 00:45:44,000
What does it smell like, man? What do you keep in here?

843
00:45:44,000 --> 00:45:47,000
It smells like old food, I think.

844
00:45:47,000 --> 00:45:49,000
We need to spray it with bleach inside.

845
00:45:49,000 --> 00:45:52,000
No, no, no, no. We're going to clean it out with a grenade.

846
00:45:54,000 --> 00:45:57,000
Luckily, shop general Terry is having a cure-out,

847
00:45:57,000 --> 00:46:01,000
and his old beer fridge could really do with being put out of its misery.

848
00:46:03,000 --> 00:46:05,000
So once again, it's back to the range,

849
00:46:05,000 --> 00:46:09,000
this time for some gratuitous destruction of kitchen appliances.

850
00:46:09,000 --> 00:46:11,000
All in the name of science, of course.

851
00:46:12,000 --> 00:46:14,000
There's stuff in there. The beer.

852
00:46:14,000 --> 00:46:15,000
The fridge is in position.

853
00:46:15,000 --> 00:46:19,000
You got any diseases from here? You can cure yourself with a penicillin right here.

854
00:46:20,000 --> 00:46:27,000
And our cutout casts gather around as the bomb team rig the grenade inside the fridge, just like the film clip.

855
00:46:28,000 --> 00:46:33,000
Given what we've seen so far from all the tests, I actually think this fridge has got a better chance than anything else

856
00:46:33,000 --> 00:46:36,000
of saving everybody in the vicinity of that grenade.

857
00:46:36,000 --> 00:46:42,000
There's a big steel wall, you have an air chamber in there, you've got plastic, you've got fiberglass lining.

858
00:46:42,000 --> 00:46:45,000
And there's a lot of stuff in the way of all that fragmentation.

859
00:46:45,000 --> 00:46:48,000
I don't think this fridge will be anything but destroyed when we're done.

860
00:46:49,000 --> 00:46:51,000
But saving the fridge isn't the myth.

861
00:46:51,000 --> 00:46:54,000
Will it suppress the blast and save the hero?

862
00:46:55,000 --> 00:46:58,000
In three, two, one.

863
00:47:06,000 --> 00:47:11,000
The replay shows the silhouettes chilling out around the fridge, wondering what's for dinner.

864
00:47:13,000 --> 00:47:15,000
What else? Bangers and smash.

865
00:47:18,000 --> 00:47:24,000
Yeah, something tells me that this is maybe not the best of the options. What do you think?

866
00:47:24,000 --> 00:47:25,000
Wow.

867
00:47:28,000 --> 00:47:29,000
Oh man.

868
00:47:30,000 --> 00:47:31,000
It's pretty clear here.

869
00:47:31,000 --> 00:47:38,000
That's the two places you don't want to be standing are either in front or behind the fridge, but on the side, it's just fine.

870
00:47:39,000 --> 00:47:41,000
The key position is the actor directly in front.

871
00:47:42,000 --> 00:47:47,000
As per the film clip, our hero runs away from the fridge and ducks down square onto the door.

872
00:47:49,000 --> 00:47:53,000
And as the high speed camera shows, that ain't exactly the best idea.

873
00:47:54,000 --> 00:47:56,000
It didn't fare too well with the battle of the refrigerator.

874
00:47:57,000 --> 00:47:59,000
No, no, number seven is totally gone.

875
00:47:59,000 --> 00:48:04,000
If you're thinking that a refrigerator is going to contain a grenade, you're totally wrong.

876
00:48:04,000 --> 00:48:06,000
I'm sitting on the evidence.

877
00:48:07,000 --> 00:48:09,000
But Adam, that's what you thought.

878
00:48:09,000 --> 00:48:13,000
With predictions as poor as that, you'd better let Jamie wrap this one up.

879
00:48:14,000 --> 00:48:18,000
Out of all the options that we had, this was clearly the worst idea.

880
00:48:18,000 --> 00:48:22,000
When you think about it, it makes sense. You've got a lot of metal there to create shrapnel.

881
00:48:22,000 --> 00:48:25,000
You don't have a lot of mass to resist it.

882
00:48:25,000 --> 00:48:29,000
You've got foam and other lightweight things, and it's awfully messy as well.

883
00:48:35,000 --> 00:48:40,000
So how did Hollywood, with its typical tenuous connection with reality, fare with this myth?

884
00:48:40,000 --> 00:48:46,000
Surprisingly well. It turns out jumping on a grenade does quite well at limiting the grenade's frag.

885
00:48:46,000 --> 00:48:48,000
And the bucket of water didn't do so bad either.

886
00:48:49,000 --> 00:48:56,000
Yeah, of all the ones we tested, I'd have to say putting a grenade into a refrigerator should be left on the cutting room floor.

887
00:48:56,000 --> 00:48:59,000
Yeah. So how are we going to wrap this up?

888
00:48:59,000 --> 00:49:02,000
Well, we have to say that jumping on a grenade is confirmed.

889
00:49:02,000 --> 00:49:05,000
Amazingly, we've gone after a Hollywood myth that ain't a myth at all.

890
00:49:05,000 --> 00:49:07,000
Okay, it's confirmed.

891
00:49:18,000 --> 00:49:24,000
Mythbusters merchandise, including the DVD game, is available at Dimmix and JB Hi-Fi.