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On this episode of MythBusters, it's a shocking state of affairs.

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Adam and Jamie have a MythBuster meltdown.

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I'm just expressing my opinion and I'm not giving you a f*** about your opinion.

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And find themselves in over their heads to make killer quicksand.

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Pump stops during the experiment we could die because we'll be encased in 20,000 pounds

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of sand.

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And see what happens when tattoos and technology meet.

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And body art go boom.

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Who are the MythBusters?

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Am I missing an eyebrow?

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Adam Savage.

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I reject the reality and substitute my own.

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And Jamie Heineman.

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Quack, damn you.

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I wouldn't say Jamie's an evil genius.

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Between them more than 30 years special effects experience.

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When will the fun ever stop?

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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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Few things are more shocking than Adam in a bathrobe.

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But the first myth gets close.

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What's with the bathrobe?

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Well Jamie, this time we are attacking one of the classic Hollywood movie myths.

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Which is simply, if you threw an electrical appliance into my bath, I'd get electrocuted.

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Right, well that means appliances.

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Our favorite haunts.

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Oh yeah.

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Let's go.

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Okay.

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As Adam said, this grisly death is a favorite with filmmakers.

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Take Chucky for example.

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Our demonic dog gives the bathing beauty a bath time buzz.

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Lots of appliances.

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And I see some ground fault interruptors on them.

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So there's a rule here about these?

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Drift town cannot sell hair dryers without GFI switches for safety purposes.

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Which means if these are dropped into a bathtub they would turn off immediately.

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A ground fault interruptor detects any sudden change in the flow of electricity and immediately

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shuts off the current.

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Older appliances don't have ground fault interruptors and so they're potentially more dangerous.

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So we need to get some of those.

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Here's the radio.

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This would definitely be next to your bathtub.

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What about this?

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It's like zzz versus zzz.

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I think this has got more power to it.

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No, I think it's this one.

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We have a small TV that will fit into the bathtub.

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Oh, that's perfect.

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That's exactly the television we need.

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Honey, I'm home.

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The mythbusters have wildly differing ideas about what will happen when these pre-loved

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appliances hit the water.

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Jamie's negative.

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The analogy that I have about what would happen would be about like lowering a light bulb

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into the water of the bathtub after you put the toaster in and expecting the light bulb

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to light up.

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Now I know that's not going to happen.

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Adams, positive.

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He doesn't realize that the live power of the AC is going to come through one leg.

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The bathtub with the drain pipe is going to ground to earth and you will be a very fabulous

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conductor of electricity in that short turn of the electricity he's making from the appliance

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to the ground and it will kill you very quickly, I believe.

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Do I know that you won't get electrocuted?

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I'm not so sure that I'm ready to jump in the tub quite yet, but I don't think so.

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To be honest, if Jamie doesn't think anything's going to happen, I have no problem dropping

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a hairdryer on the bathtub while he's sitting in it.

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But something tells me...

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Adam, we have about every possible appliance you can drop in a bath and a few more.

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What's next?

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I don't want to test this in just any old bathroom.

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I'd like to actually have an isolated bathroom where we can get clean tests safely with this.

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So I'm thinking about having one of the teams of builders build us a bathroom set that is

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you know, fully isolated, insulated, waterproof with a grounded bathtub in it that perhaps

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above that something like a resettable collapsing shelf where we can put the appliance on and

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continually fall into the tub.

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Tari and Christine, that's your cue.

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The boys need a bathroom.

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Alright, so what we're going to do, we're going to try to recreate a real bathroom as

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close to a real bathroom as possible.

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So I'm going to put up two walls here, we're going to tile it, and then I'm going to have

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a bathtub here, a sink there and a toilet there, and hopefully that'll give them what

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they need.

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Renting it for $10.

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And it's dripping on me.

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God knows what's in this water.

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And the glamour doesn't end there.

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Oh yeah.

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Always get the best job.

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Of course they'll need to know how much current is flowing through the water.

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This is an amp reader.

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Going through, the ground is going to go through that so we can read our amps.

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And then this is going to go attached to the drain of the bathtub to ground the bathtub.

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Now according to Adam, amperage, not voltage, is the killer.

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And the lethal limit?

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He says 70 milliamps.

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You can pump somebody with a million volts and it's going to hurt them, but if it's under

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70 milliamps, that's not going to kill them.

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The average static electricity shock that you can feel is like 10 to 30 thousand volts.

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Now the basic idea is this.

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There's a body in the bath.

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In this case, a dummy made from ballistics gel.

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Two copper paddles in the dummy's chest represent the heart.

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The paddles are wired up to a relay which will trip when the current passing between

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them hits 70 milliamps.

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That means death.

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The bathtub's insulated and ready to go.

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Now they need someone to get in it.

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So what we've got to do is we've got to make a full ballistics gel body for the appliances

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in the bathtub myth.

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And we're going to use this old mold that Jamie has, which is a beautiful fiberglass

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mold.

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We're going to have to seal this puppy because ballistics gel filling all the way up if it

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starts to leak, we're absolutely screwed.

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And we ran into trouble on that last season.

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This time he's taking no chances.

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Once the mold has been well greased with lard.

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He's built entire special of X sets out of lard.

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It's sealed tight with silicone and aluminum tape.

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Just for safety's sake, double.

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We do it double.

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Once we do the whole seam, we'll go back and do it again.

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Now just pack ice around the mold.

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All right, well, let's start getting our buckets and pouring in.

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Pray God we have enough.

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Pour in the liquid gel and wait for the dummy to set.

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Adam's feeling just a little nervous.

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Let's get on these and pray.

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I don't know to whom.

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Is there a patron saint of ballistics gel?

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Killer quicksand.

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Is that why I'm standing here in the stupid pith helmet?

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No, you're standing there in a stupid pith helmet because you're an idiot.

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The myth on this one is not whether quicksand exists, it's whether killer quicksand exists.

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Like you see in the movies, the stuff that actually sucks you down.

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So we're going to try and replicate a killer quicksand that would have some kind of suction

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effect or something that would drag someone all the way under.

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Exactly.

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It's another classic Hollywood horror.

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Johnny Weismiller could always rely on killer quicksand to swallow Tarzan's enemies.

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But is there even a grain of truth in the killer quicksand story?

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Can you really be sucked down into a bottomless pit?

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Right around the corner up here, right?

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Yeah, have you ever been there before?

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Yeah, this is where I've bought fake eyeballs.

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Funny thing is, no one knows if killer quicksand exists, but everyone knows what to do if they

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ever fall in some.

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Isn't that the myth about quicksand that you shouldn't fight it?

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You should do the more you fight, the faster you sink?

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Yeah, exactly.

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That's what I saw in the Tarzan movies.

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Exactly.

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Jamie's already got a particular sand particle theory.

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So there's got to be some kind of threshold of fineness where at a certain point it just

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will stay in suspension like mud.

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Right.

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Well, then we need something that we need like the lowest density stuff you've got.

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A bag of your finest sand, please.

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And we do mean your finest.

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The guys settle on two types of fine grain sand and some clay powder.

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So Bob, if we come up with some killer quicksand, we'll give you the recipe so you can, you

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know, keep your patrons informed.

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Probably, I probably have customers that would like to have it.

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So yeah, I think that would be great.

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The question isn't whether quicksand is real.

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It's real all right.

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Just ask Gerald Gray.

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I was horseback riding with my family.

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I was about eight years old.

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Was on the Santa Ana River in Southern California, which is a very sandy bottomed river.

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And we knew it had quicksand, but we never could tell where that was going to be.

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Their horses missed it and got to shore.

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My horse went down.

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He sank to his belly and I was afraid to get off and I was warned not to get off because

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there was quicksand between me and shore.

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But we managed to get ropes from the horses on shore to my horse and pull him out.

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Otherwise, he would have perished if he'd been alone.

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Quicksand is the result of a process called liquefaction.

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Water rising from under the ground oversaturates the sand or soil, reducing the friction between

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the particles until they can no longer bear any weight.

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When it comes to the full-scale test, Adam and Jamie will need to know the density of

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their quicksand mix.

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If it's more dense than normal water, it might be a little difficult to sink.

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So Myth Turn Christine is sent off to make a hydrometer, an instrument which measures

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the liquid density.

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A hydrometer is a float with a calibrated stem.

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Lead shot acts as ballast, keeping the float vertical.

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You take the reading at the point where stem and liquid meet.

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Unfortunately, one little slip and Christine's up to her neck in trouble.

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Now you've just ruined my threaded rod.

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This is trash.

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So...

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I'll give you the buck fifty later, okay.

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Check it on onto the nut.

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Think before doing.

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Yes.

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See, that's not a big mistake on that thing over there.

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A thirty thousand dollar machine.

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So don't do anything without thinking.

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Just stop and think and think again before you turn anything on or do anything with this

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until you're really at home with it.

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Christine's a really hard worker, which is a good place to start.

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Unfortunately, she doesn't know anything.

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Jamie is a very good teacher, actually.

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I'm going to pick things that are just out of my range of ability, show me how to do

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them and then go away.

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Walk away and say, I need this by four.

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Which is actually very effective with me.

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One of the things that we do here for a living is normally using tools and materials in ways

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that they're not intended to be used.

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That's what we do.

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So when we've got junior people involved with that kind of thing, I have to kind of stop

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and make a mental note like this is a potential hazard.

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You didn't glue that in upside down, did you?

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I can't leave you alone for a second, can you?

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I think we need to test it in scale first because the real deal is going to involve

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a lot of material, so we want to kind of figure out what works best first.

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And I figured we'd rig some five gallon buckets, maybe some ways of plumbing them with water

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to come up through the bottom of the sand that probably involves some sort of filter

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device on the bottom.

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And then once we get it all dialed in and figure out how it works, we'll know what we're

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going to do on the big version.

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And we'll see if there's a difference between how the different sands behave with this kind

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of flow of water through it.

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Exactly.

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Time for a small scale test.

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First regular sand.

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Fill her up.

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Ah, cool.

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It supports it no problem.

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Right.

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In fact, I can push on it and I can't push it down.

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That's not moving anywhere.

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The sand is totally compacted.

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So turn it on really low.

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But what happens when water starts to rise through the sand?

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Look at that.

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It's sucking it up like a cowboy's horse.

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But Jamie thinks the water needs to be diffused more evenly through the sand.

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So what's going on?

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Slight improvements, I hope.

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I've got a double diffusion going on here.

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We sacrificed an extra bucket or two for this, but in between it also is this fabric, which

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is a much finer weave and it should hold our fine sand, if not the other things, silt

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or whatever.

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What about that goes into this bucket?

247
00:14:45,000 --> 00:14:46,000
Right.

248
00:14:46,000 --> 00:14:48,680
How about sealing the outside edge here?

249
00:14:48,680 --> 00:14:49,680
It'll do that.

250
00:14:49,680 --> 00:14:56,560
Now that there's no fabric, it actually does a pretty good job of having a jam in there.

251
00:14:56,560 --> 00:15:04,280
This time they try one of the sands from the craft store.

252
00:15:04,280 --> 00:15:08,880
At this rate, it's not like I'm plummeting to the bottom, but it is definitely letting

253
00:15:08,880 --> 00:15:15,080
me drop a lot quicker than the sand normally would and it also is resisting pulling back.

254
00:15:15,080 --> 00:15:16,880
Now they're onto something.

255
00:15:16,880 --> 00:15:18,520
Or is that into something?

256
00:15:18,520 --> 00:15:21,600
So you think it's about the lowest possible flow?

257
00:15:21,600 --> 00:15:22,600
Yeah.

258
00:15:22,600 --> 00:15:25,680
There you go.

259
00:15:25,680 --> 00:15:27,160
That's a lot of suction.

260
00:15:27,160 --> 00:15:29,960
That's enough to cause you a problem if your whole body's doing that.

261
00:15:29,960 --> 00:15:33,280
Well, let's try the finer sand and see if we get a little more control.

262
00:15:33,280 --> 00:15:34,280
Okay.

263
00:15:34,280 --> 00:15:35,280
That's cool.

264
00:15:35,280 --> 00:15:40,280
How is it to get back out again?

265
00:15:40,280 --> 00:15:41,280
Feel easy?

266
00:15:41,280 --> 00:15:42,440
Well, not exactly.

267
00:15:42,440 --> 00:15:47,080
I'm going to try and lift it.

268
00:15:47,080 --> 00:15:48,720
So that actually...

269
00:15:48,720 --> 00:15:52,320
The finer sand makes a difference in its suction.

270
00:15:52,320 --> 00:15:55,000
Yeah.

271
00:15:55,000 --> 00:15:57,000
What about the clay powder?

272
00:15:57,000 --> 00:16:00,000
That feels funky.

273
00:16:00,000 --> 00:16:03,600
Yeah, this isn't working at all.

274
00:16:03,600 --> 00:16:09,840
I mean, this is just mud and it won't let the water flow through it at all.

275
00:16:09,840 --> 00:16:15,320
So they've settled on the type of sand and the miniature quick sand rig works well, but

276
00:16:15,320 --> 00:16:17,840
can they make it work on a large scale?

277
00:16:17,840 --> 00:16:20,360
Oh, I think it's definitely going to work.

278
00:16:20,360 --> 00:16:22,480
Without a doubt, I think we've got this wired.

279
00:16:22,480 --> 00:16:25,280
I think we're going to be able to dial the flow in.

280
00:16:25,280 --> 00:16:29,000
It's just a lot of stuff to move around.

281
00:16:29,000 --> 00:16:35,400
I mean, like 20,000 pounds of sand and 15,000 pounds of water and big pumps and stuff.

282
00:16:35,400 --> 00:16:37,200
I mean, it's a hell of a deal.

283
00:16:37,200 --> 00:16:38,920
It certainly is.

284
00:16:38,920 --> 00:16:41,160
And soon the pressure will start to show.

285
00:16:41,160 --> 00:16:45,000
I'm just expressing my opinion and I'm not giving you anything about your opinion.

286
00:16:45,000 --> 00:16:46,000
I'm just saying...

287
00:16:46,000 --> 00:16:50,280
You can give me just about every one of my opinions.

288
00:16:51,280 --> 00:16:57,160
Meanwhile, Adam and Jamie are trying to find out what happens when an appliance splashes

289
00:16:57,160 --> 00:17:00,440
down in your bath.

290
00:17:00,440 --> 00:17:04,640
When that happens, the electrical current leaking from it is drawn towards the metal

291
00:17:04,640 --> 00:17:05,640
drain.

292
00:17:05,640 --> 00:17:12,480
Now, H2O by itself isn't a great conductor, but the presence of salt helps.

293
00:17:12,480 --> 00:17:17,000
And because the human body contains a high concentration of salt water, the current

294
00:17:17,000 --> 00:17:21,840
passes right through.

295
00:17:21,840 --> 00:17:24,640
It's time to unveil our bath-bound dummy.

296
00:17:24,640 --> 00:17:27,440
Jamie, we have always dreamed of such a thing.

297
00:17:27,440 --> 00:17:29,040
I think we're good.

298
00:17:29,040 --> 00:17:30,040
Let's do it.

299
00:17:30,040 --> 00:17:31,040
He's perfect.

300
00:17:31,040 --> 00:17:33,600
Our first problem has been encountered.

301
00:17:33,600 --> 00:17:34,600
Well, almost.

302
00:17:34,600 --> 00:17:36,240
His arms fell off.

303
00:17:36,240 --> 00:17:39,400
I say we get some carrots and some shallower and have a stew.

304
00:17:39,400 --> 00:17:43,200
The copper paddles are inserted into the chest.

305
00:17:43,200 --> 00:17:49,160
Ballistics gel has similar properties to human flesh and should conduct electricity the same

306
00:17:49,160 --> 00:17:52,720
way.

307
00:17:52,720 --> 00:17:57,400
This relay is set to be tripped at about 6 volts, which we know from experimentation,

308
00:17:57,400 --> 00:18:00,520
means that there's about 70 milliamps traveling across the heart.

309
00:18:00,520 --> 00:18:04,240
But it wouldn't be mythbusters without pyrotechnics.

310
00:18:04,240 --> 00:18:09,760
So Adam's rigged up a flash pot to ignite when the current hits 70 milliamps.

311
00:18:09,760 --> 00:18:12,880
We get a lethal voltage across the heart of the dummy.

312
00:18:12,880 --> 00:18:16,720
It's going to short this wire, poof, and we'll get a nice poof and we'll all know.

313
00:18:16,720 --> 00:18:18,240
And it's instantly reloadable.

314
00:18:18,240 --> 00:18:19,760
The mythbuster way.

315
00:18:19,760 --> 00:18:23,680
Three, two.

316
00:18:23,680 --> 00:18:24,680
That was cool.

317
00:18:24,680 --> 00:18:25,680
Isn't that good?

318
00:18:25,680 --> 00:18:26,680
Right.

319
00:18:26,680 --> 00:18:27,680
This bath is hot.

320
00:18:27,680 --> 00:18:30,400
Time to apply an appliance.

321
00:18:30,400 --> 00:18:33,120
This hairdryer has a ground fault interrupter.

322
00:18:33,120 --> 00:18:38,360
So if the mythbusters have created a proper circuit, it should cut out the moment it hits

323
00:18:38,360 --> 00:18:39,360
the water.

324
00:18:39,360 --> 00:18:46,360
Three, two, one, go.

325
00:18:46,360 --> 00:18:51,360
Uh oh, something's not right.

326
00:18:51,360 --> 00:18:53,280
Oh, look at the water flowing.

327
00:18:53,280 --> 00:18:54,280
It's pumping.

328
00:18:54,280 --> 00:18:55,280
What is our amperage?

329
00:18:55,280 --> 00:18:56,280
What's our amperage?

330
00:18:56,280 --> 00:18:57,280
0.95 AC.

331
00:18:57,280 --> 00:19:00,640
What kind of ground fault interruption is this?

332
00:19:00,640 --> 00:19:03,800
It's pumping water.

333
00:19:03,800 --> 00:19:05,640
I would say that's bad.

334
00:19:05,640 --> 00:19:10,200
Well the relay didn't trip and the ammeter didn't show enough amperage to kill somebody.

335
00:19:10,200 --> 00:19:11,200
That's it.

336
00:19:11,200 --> 00:19:14,440
I think we should try an appliance without the ground fault interrupter next.

337
00:19:14,440 --> 00:19:15,840
So what do we got?

338
00:19:15,840 --> 00:19:19,720
Well, we got a radio.

339
00:19:19,720 --> 00:19:23,920
All right, give me the countdown, baby.

340
00:19:23,920 --> 00:19:31,400
Okay, and five, four, three, two, one, drop.

341
00:19:31,400 --> 00:19:34,640
Tori's shelf collapses like a gallows trap door.

342
00:19:34,640 --> 00:19:36,640
We're up to one milliamp now.

343
00:19:36,640 --> 00:19:40,440
One milliamp, one seventieth of a lethal dose of electricity.

344
00:19:40,440 --> 00:19:45,280
Well, that's bupkus, I believe, is the scientific term for that.

345
00:19:45,280 --> 00:19:47,120
Something's bupkus, Adam.

346
00:19:47,120 --> 00:19:48,840
Question is, what?

347
00:19:48,840 --> 00:19:56,000
The mythbusters call in some electrical engineering know-how for a pow-wow.

348
00:19:56,000 --> 00:20:08,200
Turns out there are two faults in the system, Adam and Jamie.

349
00:20:08,200 --> 00:20:12,000
Well, Jamie, I mean, this is just a classic mythbusters screw-up we've got on our hands.

350
00:20:12,000 --> 00:20:16,200
First off, the resistance of the human body in the bath is more like a thousand ohms rather

351
00:20:16,200 --> 00:20:21,440
than the twenty thousand ohms that we've got read on the ballistics gel.

352
00:20:21,440 --> 00:20:27,480
Then it turns out that electrocution is classified as six milliamps across the heart, not the

353
00:20:27,480 --> 00:20:29,880
sixty we were originally testing for.

354
00:20:29,880 --> 00:20:34,120
And then I screwed up because I had the multimeter on the wrong setting and I was measuring voltage

355
00:20:34,120 --> 00:20:38,360
instead of amperage, which meant that we weren't getting the circuit grounded.

356
00:20:38,360 --> 00:20:40,240
Talk about getting your wires crossed.

357
00:20:40,240 --> 00:20:43,880
Oh well, even the mythbusters make mistakes.

358
00:20:43,880 --> 00:20:46,720
The guys quickly recalibrate the system.

359
00:20:46,720 --> 00:20:48,000
That's it.

360
00:20:48,000 --> 00:20:51,240
And the GFI dryer takes another dive.

361
00:20:51,240 --> 00:20:56,440
Two, one.

362
00:20:56,440 --> 00:21:03,320
The ground fault interrupter tripped immediately, thus proving itself a life-saving device.

363
00:21:03,320 --> 00:21:06,720
Okay, so now the circuit's working.

364
00:21:06,720 --> 00:21:10,800
This older hair dryer doesn't have a ground fault interrupter.

365
00:21:10,800 --> 00:21:15,880
On each drop, the amount of current across the paddles is relayed to Jamie's computer.

366
00:21:15,880 --> 00:21:17,040
I'd call that dead.

367
00:21:17,040 --> 00:21:18,440
Yeah, what are you reading, Jamie?

368
00:21:18,440 --> 00:21:21,560
I'm seeing eight and a half milliamps here across the heart.

369
00:21:21,560 --> 00:21:25,320
This one is dead as a dodo, well over the threshold.

370
00:21:25,320 --> 00:21:27,960
All right, shall we power down?

371
00:21:27,960 --> 00:21:30,200
So Adam was way off.

372
00:21:30,200 --> 00:21:35,640
Forget seventy milliamps, just six milliamps fizzing through a body is enough to cause

373
00:21:35,640 --> 00:21:40,440
loss of muscular control, making it impossible to get out of the bath.

374
00:21:40,440 --> 00:21:42,440
Next up, toaster.

375
00:21:49,440 --> 00:21:51,440
Smell the danger.

376
00:21:51,440 --> 00:21:53,440
All right, you ready?

377
00:21:53,440 --> 00:21:54,440
Recording.

378
00:21:54,440 --> 00:22:00,440
Okay, pulling in three, two, one.

379
00:22:04,440 --> 00:22:08,440
Whoa, our friend here is toast.

380
00:22:08,440 --> 00:22:11,440
Oh yeah, twelve milliamps.

381
00:22:11,440 --> 00:22:14,440
That's very lethal, totally lethal.

382
00:22:14,440 --> 00:22:16,440
Toasters, no good.

383
00:22:16,440 --> 00:22:20,440
Next item, one of my personal favorites, the curling egg.

384
00:22:20,440 --> 00:22:21,440
Let's go.

385
00:22:21,440 --> 00:22:24,440
What are you, peewee, harmony?

386
00:22:24,440 --> 00:22:29,440
Here we go, three, two, one.

387
00:22:31,440 --> 00:22:34,440
Four and a half, it's going to be really uncomfortable.

388
00:22:34,440 --> 00:22:37,440
I think you got out of the bath by now.

389
00:22:37,440 --> 00:22:38,440
You think you can?

390
00:22:38,440 --> 00:22:42,440
Don't forget, we've got four and a half milliamps at the heart.

391
00:22:42,440 --> 00:22:48,440
It means the rest of your body is going to be like, lethal dose is six milliamps, but four and a half's got to suck.

392
00:22:48,440 --> 00:22:51,440
Four and a half milliamps, it's a little close for comfort.

393
00:22:51,440 --> 00:22:54,440
I think I wouldn't want to be in there with that.

394
00:22:54,440 --> 00:22:59,440
And now the iron, or as we refer to it around here, fiero de los muertos.

395
00:22:59,440 --> 00:23:12,440
Wow, that's the highest spike yet.

396
00:23:12,440 --> 00:23:14,440
We've got thirty-two milliamps.

397
00:23:14,440 --> 00:23:17,440
This thing is literally pumping death into our subject here.

398
00:23:17,440 --> 00:23:22,440
Thirty-two milliamps, that's more than five times the lethal limit.

399
00:23:22,440 --> 00:23:26,440
Items that had large heating elements are delivering a lot more current,

400
00:23:26,440 --> 00:23:31,440
and that's specifically because a heating element is basically a modified short across wire,

401
00:23:31,440 --> 00:23:34,440
so it's a lot of exposure to the water.

402
00:23:34,440 --> 00:23:39,440
The Mythbusters also discovered that if the appliance lands closer to the metal drain,

403
00:23:39,440 --> 00:23:45,440
the dose of electricity is drastically reduced because the current has less distance to travel.

404
00:23:45,440 --> 00:23:47,440
We know that you can be electrocuted.

405
00:23:47,440 --> 00:23:52,440
Now we'd like to find out what would happen if you added something like bubble bath to the water.

406
00:23:52,440 --> 00:23:59,440
Will the water's conductivity be changed?

407
00:23:59,440 --> 00:24:01,440
No, that's not as much as it was last time.

408
00:24:01,440 --> 00:24:03,440
It's only about eleven milliamps.

409
00:24:03,440 --> 00:24:05,440
Last time it was eighteen, I believe.

410
00:24:05,440 --> 00:24:07,440
The subsets don't help it at all.

411
00:24:07,440 --> 00:24:10,440
In fact, it seems like it cut it down.

412
00:24:10,440 --> 00:24:14,440
Next up we're going to try two hundred mils of fake urine in the bath.

413
00:24:14,440 --> 00:24:19,440
Our urine is just water with salt and food dye added.

414
00:24:19,440 --> 00:24:25,440
Fake weed test in three, two, one.

415
00:24:25,440 --> 00:24:29,440
Well that's got it. It's just right in the death zone.

416
00:24:29,440 --> 00:24:31,440
And finally, epsom salts.

417
00:24:31,440 --> 00:24:36,440
Remember, salt normally increases water's conductivity.

418
00:24:36,440 --> 00:24:39,440
Big spike. Wow!

419
00:24:39,440 --> 00:24:41,440
That was over an amp. That'd be huge.

420
00:24:41,440 --> 00:24:43,440
You'd be toast.

421
00:24:43,440 --> 00:24:45,440
You'd fry. You'd boil.

422
00:24:45,440 --> 00:24:48,440
This from the guy who thought nothing would happen.

423
00:24:48,440 --> 00:24:50,440
I really like this one. We learned a lot on this.

424
00:24:50,440 --> 00:24:53,440
You can definitely dye if you drop an appliance into the tub.

425
00:24:53,440 --> 00:24:54,440
Oh, absolutely.

426
00:24:54,440 --> 00:24:59,440
Surprisingly, it actually turns out that the location of where the appliance falls in the bath

427
00:24:59,440 --> 00:25:02,440
really has a strong effect on the severity of the shock you'd get.

428
00:25:02,440 --> 00:25:05,440
And what's in the water will determine how quickly you dye.

429
00:25:05,440 --> 00:25:08,440
Everyone will always want to know if we're just busing myths

430
00:25:08,440 --> 00:25:10,440
or if we're actually confirming them in this one.

431
00:25:10,440 --> 00:25:12,440
Hundred percent confirmed.

432
00:25:12,440 --> 00:25:14,440
Yeah, we're done.

433
00:25:15,440 --> 00:25:20,440
The MythBusters are trying to create quicksand.

434
00:25:20,440 --> 00:25:23,440
Not ordinary quicksand, killer quicksand.

435
00:25:23,440 --> 00:25:26,440
Stuff that'll suck you right under.

436
00:25:26,440 --> 00:25:28,440
I'm pretty sure it's going to work.

437
00:25:28,440 --> 00:25:30,440
It's just a question of how well.

438
00:25:30,440 --> 00:25:32,440
Because while I know that we can sink in there,

439
00:25:32,440 --> 00:25:34,440
I don't know how fast we're going to get it.

440
00:25:34,440 --> 00:25:36,440
The ideal would be to get so you plumb it in there,

441
00:25:36,440 --> 00:25:38,440
but then you get stuck.

442
00:25:38,440 --> 00:25:43,440
But this one, the guys are going to need one mighty big bucket.

443
00:25:44,440 --> 00:25:47,440
Whoa, stop!

444
00:25:47,440 --> 00:25:53,440
This 2,000 gallon tank has played a starring role before on MythBusters.

445
00:25:53,440 --> 00:25:57,440
Hey Adam, did you hear the guy tell us what this was for?

446
00:25:57,440 --> 00:25:58,440
What was it for?

447
00:25:58,440 --> 00:26:00,440
It was like a fecal matter.

448
00:26:00,440 --> 00:26:07,440
So I'm going to cut this tank down to just over eight feet from the inside.

449
00:26:13,440 --> 00:26:25,440
That was really sad, right?

450
00:26:29,440 --> 00:26:32,440
These gauze holes will actually allow water to get out,

451
00:26:32,440 --> 00:26:34,440
but keep the sand inside.

452
00:26:34,440 --> 00:26:37,440
And that'll make the top of our quicksand not like a slurry,

453
00:26:37,440 --> 00:26:39,440
but actually look more like sand,

454
00:26:39,440 --> 00:26:43,440
so it's more realistic to what people think of quicksand looking like.

455
00:26:43,440 --> 00:26:47,440
Meanwhile, Jamie and Christine start work on the diffuser.

456
00:26:47,440 --> 00:26:50,440
The gauze will let water rise into the tank,

457
00:26:50,440 --> 00:26:53,440
but stop sand from flowing back into the pump.

458
00:26:53,440 --> 00:26:56,440
So what we've got is huge six foot tanks, about eight feet high.

459
00:26:56,440 --> 00:27:02,440
We're going to feed water up through this diffuser into seven feet of sand.

460
00:27:02,440 --> 00:27:05,440
And when we get that water to flow at the right rate,

461
00:27:05,440 --> 00:27:07,440
what we should end up with is quicksand.

462
00:27:07,440 --> 00:27:11,440
Our task is not only to build quicksand, but killer quicksand.

463
00:27:11,440 --> 00:27:14,440
And I have my doubts that we'll be able to do this,

464
00:27:14,440 --> 00:27:18,440
because when you start to think about what's involved,

465
00:27:18,440 --> 00:27:22,440
the sand actually makes it harder for you to drown in it,

466
00:27:22,440 --> 00:27:25,440
because it's in effect making the water more dense.

467
00:27:25,440 --> 00:27:29,440
Water with sand in it is heavier than water without sand in it.

468
00:27:29,440 --> 00:27:31,440
Hence you're going to be more buoyant.

469
00:27:32,440 --> 00:27:39,440
This pool will serve as the catch basin and reciprocating tank for our quicksand rig.

470
00:27:48,440 --> 00:27:51,440
You're looking good. Another foot.

471
00:27:52,440 --> 00:27:54,440
Alright, that ought to do it.

472
00:27:55,440 --> 00:27:56,440
Yeah!

473
00:27:56,440 --> 00:27:58,440
The tank's in position.

474
00:27:58,440 --> 00:27:59,440
Aw, that's beautiful.

475
00:27:59,440 --> 00:28:01,440
It's time to fill the pool.

476
00:28:01,440 --> 00:28:05,440
And that's when the quicksand experiment gets a little sticky.

477
00:28:05,440 --> 00:28:06,440
Crank it all the way.

478
00:28:06,440 --> 00:28:10,440
Adam wants to call in a fire hose and get the job done quickly.

479
00:28:10,440 --> 00:28:15,440
That means getting permission to use a hydrant, phone calls, probably some expense.

480
00:28:15,440 --> 00:28:18,440
But Jamie's happy to use his garden hose.

481
00:28:18,440 --> 00:28:21,440
It's a little under 30 seconds for five gallons.

482
00:28:21,440 --> 00:28:24,440
Alright, which means 10 gallons a minute.

483
00:28:24,440 --> 00:28:28,440
So 10 minutes is 100 gallons, 1000 gallons is 100 minutes,

484
00:28:28,440 --> 00:28:31,440
2000 gallons is 200 minutes.

485
00:28:31,440 --> 00:28:34,440
It's just over three hours to fill that tank,

486
00:28:34,440 --> 00:28:38,440
and then another probably hour or two to get that pool.

487
00:28:38,440 --> 00:28:40,440
So it's five hours of filling.

488
00:28:41,440 --> 00:28:44,440
That's as opposed to doing the fire hose where it's like four minutes.

489
00:28:44,440 --> 00:28:45,440
Three hours and 20 minutes.

490
00:28:45,440 --> 00:28:47,440
His partner won't budge.

491
00:28:47,440 --> 00:28:50,440
Under that beret is one stubborn myth buster.

492
00:28:50,440 --> 00:28:55,440
We can continue to not err on the side of caution and just waste time because you're cheap.

493
00:28:55,440 --> 00:28:59,440
I'm just expressing my opinion and I'm not giving you that your opinion.

494
00:28:59,440 --> 00:29:01,440
I'm just saying, I think it's...

495
00:29:01,440 --> 00:29:02,440
You can give me about every one of my opinions.

496
00:29:02,440 --> 00:29:04,440
Every last single one of them.

497
00:29:04,440 --> 00:29:08,440
You have a different one and you talk until I can't stand to hear you talk anymore

498
00:29:08,440 --> 00:29:09,440
and then we go with your idea.

499
00:29:09,440 --> 00:29:13,440
Baby, now I got to listen to your whine about it all the time.

500
00:29:13,440 --> 00:29:16,440
And the whole time it's filling, it's like...

501
00:29:16,440 --> 00:29:19,440
I like to do things efficiently and kind of fast.

502
00:29:19,440 --> 00:29:24,440
And Damien is always looking for the kind of lowest amount of...

503
00:29:24,440 --> 00:29:26,440
I don't even know how to describe it.

504
00:29:26,440 --> 00:29:28,440
It's just like the least amount of effort involved.

505
00:29:28,440 --> 00:29:31,440
So he wants to go with just the garden hose where I like to go with the fire hose.

506
00:29:31,440 --> 00:29:35,440
The fire hose, I know the whole thing is full inside of like 15, 20 minutes, you know?

507
00:29:35,440 --> 00:29:39,440
But the garden hose is going to take several hours.

508
00:29:39,440 --> 00:29:41,440
But there's no time for tantrums.

509
00:29:41,440 --> 00:29:43,440
I'm going to go turn on the water.

510
00:29:43,440 --> 00:29:47,440
Twenty thousand pounds of sand have just arrived.

511
00:29:47,440 --> 00:29:49,440
That's a lot of sand!

512
00:29:49,440 --> 00:29:54,440
Along with an engineering geologist who knows plenty about quick sand.

513
00:29:54,440 --> 00:29:58,440
More easily forms in a situation where you have very fine sand.

514
00:29:58,440 --> 00:30:01,440
In fact, geologists sometimes call it sugar sand.

515
00:30:01,440 --> 00:30:04,440
So most of your quick sand is in really fine-grained sand.

516
00:30:04,440 --> 00:30:08,440
So Tom, the twenty thousand pounds of sand we've got here, is this great for quick sand?

517
00:30:08,440 --> 00:30:10,440
Oh, this is great.

518
00:30:10,440 --> 00:30:15,440
This is probably as good as it gets because it's very fine-grained and it'll...

519
00:30:15,440 --> 00:30:19,440
There's so much surface area here that when the water flows through it

520
00:30:19,440 --> 00:30:23,440
it means the water can grab onto that and that'll create the quick condition.

521
00:30:23,440 --> 00:30:28,440
This irrigation pump can move up to fourteen hundred gallons of water a minute.

522
00:30:28,440 --> 00:30:31,440
But if it stops while Adam and Jamie are in the quick sand,

523
00:30:31,440 --> 00:30:34,440
the sand will suddenly compact.

524
00:30:34,440 --> 00:30:38,440
And the mythbusters will have some pressing problems.

525
00:30:38,440 --> 00:30:42,440
Adam and Jamie are suddenly facing danger on two fronts.

526
00:30:42,440 --> 00:30:46,440
On one hand, the guys could be sucked under by killer quick sand.

527
00:30:46,440 --> 00:30:48,440
Or they could be crushed.

528
00:30:48,440 --> 00:30:53,440
Tom's pointing out quite realistically that if the pump stops during the experiment

529
00:30:53,440 --> 00:30:57,440
we could die because we'll be encased in twenty thousand pounds of sand.

530
00:30:57,440 --> 00:31:00,440
And we'll be able to get to the bottom of the water.

531
00:31:00,440 --> 00:31:04,440
And if we're able to die because we'll be encased in twenty thousand pounds of sand

532
00:31:04,440 --> 00:31:06,440
it's cause for real concern.

533
00:31:06,440 --> 00:31:10,440
Before I talk to Tom, I wasn't that concerned about going into the quick sand.

534
00:31:10,440 --> 00:31:14,440
But I think he has a good point and we should be careful with this.

535
00:31:14,440 --> 00:31:18,440
We'll leave Adam and Jamie to ponder their fine-grained fate.

536
00:31:22,440 --> 00:31:27,440
There are a host of medical related myths swirling around cyberspace.

537
00:31:27,440 --> 00:31:32,440
Remember the government mind control chips being placed in the arms of blood donors?

538
00:31:32,440 --> 00:31:33,440
Little sting, here we go.

539
00:31:33,440 --> 00:31:39,440
When Adam and Jamie busted that one, it was a shot in the arm for science and common sense.

540
00:31:39,440 --> 00:31:43,440
I don't notice anything at all. I feel perfectly normal now.

541
00:31:43,440 --> 00:31:48,440
Now the build team have got another myth that'll really get under your skin.

542
00:31:52,440 --> 00:31:56,440
You guys are gonna love this one. Our next bit is called the exploding tattoo.

543
00:31:56,440 --> 00:32:01,440
Apparently the myth goes that if you have some sort of decorative tattoo and go into an MRI,

544
00:32:01,440 --> 00:32:03,440
the tattoo explodes.

545
00:32:03,440 --> 00:32:05,440
Are you worried?

546
00:32:05,440 --> 00:32:09,440
Well, I'm assuming that you guys are going to put me into an MRI.

547
00:32:09,440 --> 00:32:12,440
Let's outline the situation.

548
00:32:12,440 --> 00:32:18,440
Tattoo ink, especially ink used more than twenty years ago, contains traces of metal.

549
00:32:18,440 --> 00:32:24,440
A magnetic resonance imager, or MRI, is basically a powerful magnet,

550
00:32:24,440 --> 00:32:29,440
with a force at least thirty thousand times greater than the Earth's magnetic field.

551
00:32:29,440 --> 00:32:35,440
When metal fragments in the tattoo meet the MRI magnet, so the story goes,

552
00:32:35,440 --> 00:32:40,440
the result is a lot more painful than actually getting the tattoo in the first place.

553
00:32:40,440 --> 00:32:42,440
So are you going to get an MRI?

554
00:32:42,440 --> 00:32:43,440
No.

555
00:32:43,440 --> 00:32:44,440
No?

556
00:32:44,440 --> 00:32:48,440
You understand that the job on Mythbusters is to put your body to the test,

557
00:32:48,440 --> 00:32:53,440
and being the one with the tattoos, I think you need to go at least have an MRI on your arm.

558
00:32:53,440 --> 00:32:58,440
Come on, Scotty. Adam and Jamie are about to throw themselves into quicksand.

559
00:32:58,440 --> 00:33:02,440
The least you could do is stick your inked-up arm in an MRI.

560
00:33:02,440 --> 00:33:04,440
After all, it is for science.

561
00:33:15,440 --> 00:33:17,440
My ghost dog.

562
00:33:17,440 --> 00:33:19,440
I think she actually looks scared.

563
00:33:19,440 --> 00:33:21,440
She looks cute in a nightgown.

564
00:33:23,440 --> 00:33:30,440
Staff here have heard the exploding tattoo story, but don't think Scotty will wind up ink-capacitated.

565
00:33:30,440 --> 00:33:37,440
One or two patients out of a hundred who have a tattoo and an NDL MRI scan to have a reaction,

566
00:33:37,440 --> 00:33:40,440
but the reactions that have been described are all minor,

567
00:33:40,440 --> 00:33:44,440
consisting of a little bit of discomfort or some redness at the tattoo,

568
00:33:44,440 --> 00:33:47,440
but nobody has described exploding tattoos.

569
00:33:47,440 --> 00:33:53,440
Do you think it's possible that the magnetic field is inducing some sort of current in the pigments or in the material in the tattoo?

570
00:33:53,440 --> 00:33:59,440
It's possible, but it seems unlikely because usually to get induced currents,

571
00:33:59,440 --> 00:34:02,440
you need lengths of wire or loops,

572
00:34:02,440 --> 00:34:07,440
so it's hard to see how these tiny particles could have currents induced in them,

573
00:34:07,440 --> 00:34:10,440
but nobody could say it's not happening for sure.

574
00:34:10,440 --> 00:34:12,440
Are you okay?

575
00:34:17,440 --> 00:34:20,440
What's that smell? It smells like sizzling bacon.

576
00:34:20,440 --> 00:34:23,440
At the first sign of trouble, the scan will be stopped.

577
00:34:23,440 --> 00:34:26,440
Looks like a T-bone steak.

578
00:34:26,440 --> 00:34:27,440
Yeah.

579
00:34:27,440 --> 00:34:32,440
An MRI scan targets the body's billions of hydrogen atoms.

580
00:34:32,440 --> 00:34:38,440
The atoms line up with the strong magnetic field and are then bombarded by radio waves.

581
00:34:38,440 --> 00:34:43,440
The radio waves are absorbed by the atoms and the resulting signal sent to a computer,

582
00:34:43,440 --> 00:34:46,440
which turns the data into a 2D image.

583
00:34:46,440 --> 00:34:48,440
Is there any distortion in the image or sign of the tattoo?

584
00:34:48,440 --> 00:34:49,440
No.

585
00:34:49,440 --> 00:34:52,440
Scotty's arm full of ink is still intact.

586
00:34:52,440 --> 00:34:56,440
No pain, no discomfort, no explosion.

587
00:34:56,440 --> 00:34:58,440
No, you're looking alright.

588
00:34:58,440 --> 00:35:02,440
But of course, the tattoo myth ain't busted yet.

589
00:35:02,440 --> 00:35:05,440
The build teams barely scratch the surface.

590
00:35:08,440 --> 00:35:10,440
We stopped to bust this myth.

591
00:35:10,440 --> 00:35:12,440
It looks like we're going to have to do some experiments.

592
00:35:12,440 --> 00:35:15,440
We're going to have to get the compounds that go into all of these pigments

593
00:35:15,440 --> 00:35:19,440
and test them individually to find out what could cause any sort of irritation or explosion.

594
00:35:19,440 --> 00:35:22,440
So what goes into tattooing?

595
00:35:22,440 --> 00:35:25,440
The pigments are a pulpourri of chemical compound,

596
00:35:25,440 --> 00:35:30,440
including iron oxide, zinc oxide, and titanium dioxide.

597
00:35:30,440 --> 00:35:34,440
So the theory is, is the metallic components that are used in tattoo pigments

598
00:35:34,440 --> 00:35:37,440
have been having some reactions with the MRI magnetic field.

599
00:35:37,440 --> 00:35:40,440
So what we have here are a couple of those components.

600
00:35:40,440 --> 00:35:44,440
We have iron oxide, we have the copper and the zinc and the mercury.

601
00:35:44,440 --> 00:35:47,440
So what we're going to do is we're going to try to expose some of these materials

602
00:35:47,440 --> 00:35:49,440
to a strong electromagnetic field.

603
00:35:49,440 --> 00:35:52,440
We can see if the pigments line up with the magnetic field.

604
00:35:52,440 --> 00:35:56,440
Secondly, if the theory is that there's sort of a current being induced,

605
00:35:56,440 --> 00:35:58,440
we have a voltmeter to check for that.

606
00:35:58,440 --> 00:36:03,440
And of course, if the pigments are creating some sort of excitation in the skin

607
00:36:03,440 --> 00:36:07,440
and heating it, we have a thermometer to check and see if there's any temperature difference.

608
00:36:07,440 --> 00:36:09,440
Which compound is the culprit?

609
00:36:09,440 --> 00:36:11,440
One by one, they're tested.

610
00:36:11,440 --> 00:36:12,440
Yay.

611
00:36:13,440 --> 00:36:15,440
Copper and zinc.

612
00:36:22,440 --> 00:36:24,440
Iron oxide.

613
00:36:24,440 --> 00:36:26,440
Iron oxide.

614
00:36:26,440 --> 00:36:30,440
But only one iron oxide reacts to the magnetic field.

615
00:36:30,440 --> 00:36:34,440
After all of that testing, it looks like iron oxide is definitely the culprit here.

616
00:36:34,440 --> 00:36:37,440
I mean, you could see it just moving over the magnetic field.

617
00:36:37,440 --> 00:36:38,440
It would line up.

618
00:36:38,440 --> 00:36:40,440
Well, we still need to make a tattoo explode.

619
00:36:40,440 --> 00:36:44,440
So what I'm thinking is we'll make our own ink, mix in some iron oxide,

620
00:36:44,440 --> 00:36:46,440
make it a thick batch, and then tattoo someone.

621
00:36:46,440 --> 00:36:48,440
I figured you'd be the good person to try it on.

622
00:36:48,440 --> 00:36:50,440
No. No. No.

623
00:36:50,440 --> 00:36:52,440
No. No. No.

624
00:36:55,440 --> 00:37:00,440
The junior mythbusters are trying to make tattoo ink that will explode in an MRI.

625
00:37:00,440 --> 00:37:05,440
They're going shopping for art supplies at the Butchers.

626
00:37:05,440 --> 00:37:06,440
We need some pork.

627
00:37:06,440 --> 00:37:07,440
Pork?

628
00:37:07,440 --> 00:37:09,440
Yeah, but it has to have the skin left on it.

629
00:37:09,440 --> 00:37:10,440
Okay.

630
00:37:10,440 --> 00:37:11,440
Oh, look at that.

631
00:37:11,440 --> 00:37:12,440
Beautiful.

632
00:37:12,440 --> 00:37:13,440
We even have the meat off the skin.

633
00:37:13,440 --> 00:37:15,440
So what's it going to be, the leg or the belly?

634
00:37:15,440 --> 00:37:17,440
Don't ask me, I'm a vegetarian.

635
00:37:17,440 --> 00:37:19,440
I would say we should go with the belly.

636
00:37:19,440 --> 00:37:22,440
I mean, it's like a nice big canvas that we can draw.

637
00:37:22,440 --> 00:37:25,440
It's probably a little more tender as well.

638
00:37:25,440 --> 00:37:27,440
Hey, look, it still has little hairs on it.

639
00:37:31,440 --> 00:37:35,440
This is my old friend, Maddie, and he is responsible for the new ink on my arm.

640
00:37:35,440 --> 00:37:36,440
Welcome, Maddie.

641
00:37:36,440 --> 00:37:37,440
How you doing?

642
00:37:37,440 --> 00:37:38,440
How you doing?

643
00:37:38,440 --> 00:37:39,440
Nice to meet you.

644
00:37:39,440 --> 00:37:40,440
Nice to meet you too.

645
00:37:40,440 --> 00:37:41,440
And he's here today.

646
00:37:41,440 --> 00:37:43,440
He's going to show us how to tattoo on our pig.

647
00:37:43,440 --> 00:37:44,440
All right.

648
00:37:44,440 --> 00:37:45,440
Hey, Maddie.

649
00:37:45,440 --> 00:37:46,440
Hey, Maddie.

650
00:37:47,440 --> 00:37:49,440
Hey, Maddie, have you ever tattooed a pig before?

651
00:37:49,440 --> 00:37:51,440
No, I never tattooed a pig.

652
00:37:51,440 --> 00:37:57,440
I was told to try pig ears when I was learning how to tattoo, but I never tried a pig.

653
00:37:57,440 --> 00:37:58,440
I used my own leg.

654
00:37:58,440 --> 00:38:01,440
Maddie's heard the MRI myth too.

655
00:38:01,440 --> 00:38:07,440
I don't think that it's true because I would hear a lot more about people coming back to

656
00:38:07,440 --> 00:38:10,440
the tattoo parlors and being like, what happened to my tattoo?

657
00:38:10,440 --> 00:38:15,440
But I've never heard anybody come into a tattoo parlour and say, I went and got an MRI and

658
00:38:15,440 --> 00:38:16,440
my tattoo exploded.

659
00:38:16,440 --> 00:38:19,440
You know, I think that would be pretty big news.

660
00:38:19,440 --> 00:38:21,440
The pork is cut into portions.

661
00:38:21,440 --> 00:38:27,440
Maddie will use two different inks, a regular tattooing pigment and a special brew full

662
00:38:27,440 --> 00:38:32,440
of iron oxide, the one compound that reacted to the electromagnet.

663
00:38:32,440 --> 00:38:35,440
Maddie, here's the ultrametallic pigment.

664
00:38:35,440 --> 00:38:36,440
Check it out.

665
00:38:36,440 --> 00:38:39,440
See if you think the consistency is good enough.

666
00:38:39,440 --> 00:38:43,440
Yeah, I think that's pretty good.

667
00:38:43,440 --> 00:38:47,440
Right, it's time to get some pigment into this pig.

668
00:38:55,440 --> 00:38:57,440
It's kind of gross.

669
00:38:57,440 --> 00:38:59,440
You're not getting near my arm.

670
00:38:59,440 --> 00:39:00,440
Yeah.

671
00:39:00,440 --> 00:39:02,440
You're not getting near me with that thing.

672
00:39:02,440 --> 00:39:06,440
Carrie, it might be safer if you stick to felt tip.

673
00:39:06,440 --> 00:39:08,440
Let's see if there's any change.

674
00:39:08,440 --> 00:39:10,440
Careful, you've cracked parts and stuff again.

675
00:39:10,440 --> 00:39:14,440
Oh yeah, oh yeah, look at that.

676
00:39:14,440 --> 00:39:18,440
I have bobby pins and I can feel that too.

677
00:39:21,440 --> 00:39:28,440
Back at the MRI machine, the super iron oxide ink takes on a life of its own.

678
00:39:28,440 --> 00:39:32,440
The container is suddenly sucked right into the core.

679
00:39:36,440 --> 00:39:37,440
Is that ink going to work?

680
00:39:37,440 --> 00:39:38,440
Yeah, that ain't going to work.

681
00:39:38,440 --> 00:39:39,440
That was completely nutty.

682
00:39:39,440 --> 00:39:42,440
The iron oxide got completely sucked into the magnet.

683
00:39:42,440 --> 00:39:44,440
Yeah, the box flew right off.

684
00:39:44,440 --> 00:39:47,440
That was pretty cool.

685
00:39:47,440 --> 00:39:49,440
Thank goodness we taped the top.

686
00:39:49,440 --> 00:39:53,440
Otherwise, I don't think they'd let us come back.

687
00:39:53,440 --> 00:39:56,440
The pork bellies are primed for scanning.

688
00:39:56,440 --> 00:40:02,440
Okay, so this is our special myth busters super iron oxide ink.

689
00:40:02,440 --> 00:40:05,440
So if anyone's going to explode, it's going to be this one.

690
00:40:05,440 --> 00:40:07,440
There's a glitch on the image.

691
00:40:07,440 --> 00:40:11,440
The heavy iron oxide content seems to be having an effect.

692
00:40:11,440 --> 00:40:15,440
So you think that what we tattooed is actually making an interference on your scan?

693
00:40:15,440 --> 00:40:16,440
Definitely.

694
00:40:16,440 --> 00:40:18,440
But it's not explosive.

695
00:40:18,440 --> 00:40:23,440
Well, it didn't explode, so go ahead and blot it and see if any of the pigments came up.

696
00:40:26,440 --> 00:40:31,440
No, no pigment has been pulled to the surface.

697
00:40:31,440 --> 00:40:35,440
All right, so next one we're going to do is the traditional iron oxide.

698
00:40:35,440 --> 00:40:38,440
What you normally find in a regular tattoo parlor.

699
00:40:38,440 --> 00:40:45,440
The iron oxide in the regular ink also interferes with the scan, but the effect is much smaller.

700
00:40:45,440 --> 00:40:53,440
But in the end, Scotty, Tori and Carrie are left with chunks of unexploded tattooed pork.

701
00:40:53,440 --> 00:40:56,440
All right, Scotty, exploding tattoos, tell us what you came up with.

702
00:40:56,440 --> 00:40:59,440
Well, clearly iron oxide is the culprit here.

703
00:40:59,440 --> 00:41:04,440
Iron oxide definitely reacts to magnetic field, and it's very common in a lot of tattoo inks.

704
00:41:04,440 --> 00:41:07,440
But at most it's going to cause heating.

705
00:41:07,440 --> 00:41:12,440
There was one case of a blister with the operators that we talked to, but it's not going to explode.

706
00:41:12,440 --> 00:41:15,440
So you're telling us there was no exploding tattoo?

707
00:41:15,440 --> 00:41:19,440
No, Jamie, I know that disappoints you, but I'm a little relieved about that.

708
00:41:19,440 --> 00:41:21,440
So myth confirmed, plausible?

709
00:41:21,440 --> 00:41:24,440
Myth busted, I'm saying.

710
00:41:30,440 --> 00:41:33,440
Myth Busters

711
00:41:33,440 --> 00:41:37,440
The Myth Busters killer quick sand rigs almost ready.

712
00:41:37,440 --> 00:41:38,440
Push up, push up.

713
00:41:38,440 --> 00:41:40,440
My foot was stuck under it, sorry.

714
00:41:40,440 --> 00:41:46,440
Well, you know, we make this stuff up as we go, and it's always surprising when it actually works like we thought it would.

715
00:41:46,440 --> 00:41:49,440
And that's kind of the way this looks like it's doing.

716
00:41:49,440 --> 00:41:51,440
Everything's coming together relatively quickly.

717
00:41:51,440 --> 00:41:53,440
Very good.

718
00:41:53,440 --> 00:41:56,440
Oh, look at that, that's beautiful.

719
00:41:56,440 --> 00:41:58,440
Just gotta hope it works.

720
00:41:58,440 --> 00:42:09,440
If this valve right here failed, the pump would cease to put water into the tank and our sand would become a deadly solid mass of sand that we would be in.

721
00:42:12,440 --> 00:42:18,440
There's nothing like a huge piece of earth-moving equipment to bring out the boy in Adam.

722
00:42:24,440 --> 00:42:26,440
You're good.

723
00:42:27,440 --> 00:42:28,440
Stop.

724
00:42:28,440 --> 00:42:30,440
Well, how about that?

725
00:42:30,440 --> 00:42:34,440
Now I gotta figure out how we're gonna get at that underside.

726
00:42:34,440 --> 00:42:37,440
That's pretty scary letting it go all at once.

727
00:42:39,440 --> 00:42:40,440
There she goes.

728
00:42:40,440 --> 00:42:41,440
Really?

729
00:42:41,440 --> 00:42:42,440
Yeah.

730
00:42:43,440 --> 00:42:45,440
Wow, look at the bag drain.

731
00:42:47,440 --> 00:42:49,440
Oh, that is so cool.

732
00:42:52,440 --> 00:42:54,440
What do you think?

733
00:42:57,440 --> 00:42:59,440
I got my own island.

734
00:43:01,440 --> 00:43:06,440
Alright, well the tank is full of sand and water, and we're sorta primed.

735
00:43:06,440 --> 00:43:10,440
Well, let's turn on the pump and start getting some hydration to the sand.

736
00:43:12,440 --> 00:43:13,440
Wow, Jamie.

737
00:43:16,440 --> 00:43:18,440
No problem at all, man.

738
00:43:18,440 --> 00:43:20,440
It's going right away.

739
00:43:20,440 --> 00:43:23,440
Jamie, I believe we have quick sand here.

740
00:43:23,440 --> 00:43:27,440
Now Adam and Jamie were planning on having a nice sandy surface,

741
00:43:27,440 --> 00:43:31,440
but what they've got is a quagmire and a quandary.

742
00:43:31,440 --> 00:43:35,440
Unfortunately our outlet ports aren't letting the water out nearly fast enough.

743
00:43:36,440 --> 00:43:43,440
These ports up here that I've put in are supposed to let water out before it reaches over the top of the sand

744
00:43:43,440 --> 00:43:47,440
so that it can look like a sandy beach and then all of a sudden it turns into quick sand.

745
00:43:47,440 --> 00:43:51,440
Unfortunately the sand is so fine, it's clogging up those ports

746
00:43:51,440 --> 00:43:54,440
and the water is just going up and over it.

747
00:43:54,440 --> 00:43:57,440
The rig is working, everything is working exactly as planned.

748
00:43:57,440 --> 00:44:02,440
We just need to figure out how to filter the sand a little better to get something that looks good.

749
00:44:05,440 --> 00:44:11,440
We've put in some cotton batting, which is like stuffing for stuffed animals or actually for quilts.

750
00:44:11,440 --> 00:44:15,440
And hopefully the larger surface area of that will allow more water to flow through

751
00:44:15,440 --> 00:44:18,440
while still holding back the sand, so we're just about to try it.

752
00:44:18,440 --> 00:44:20,440
Yeah, it seems okay.

753
00:44:20,440 --> 00:44:22,440
Let's get more sand in.

754
00:44:22,440 --> 00:44:28,440
Meanwhile, Christine's managed to finish the hydrometer without destroying Jamie's workshop.

755
00:44:28,440 --> 00:44:33,440
This hydrometer will give us a reading on this water and will tell us if we put it in the quick sand

756
00:44:33,440 --> 00:44:36,440
whether it is more or less dense than this water.

757
00:44:37,440 --> 00:44:41,440
The hydrometer floats in the water and its buoyancy level is marked.

758
00:44:41,440 --> 00:44:43,440
Then it's dunked in the tank.

759
00:44:43,440 --> 00:44:44,440
It's floating.

760
00:44:44,440 --> 00:44:49,440
That just shows really nicely that the water sand mixture is a lot more dense than water.

761
00:44:49,440 --> 00:44:52,440
This is why it would be if it was H2O.

762
00:44:53,440 --> 00:44:58,440
So in theory, a person will float better in quick sand than normal water.

763
00:45:00,440 --> 00:45:04,440
The killer quick sand myth is on shaky ground.

764
00:45:04,440 --> 00:45:06,440
We have several escape techniques.

765
00:45:06,440 --> 00:45:11,440
First and foremost, we have whatever we would want if they were near quick sand is a vine.

766
00:45:12,440 --> 00:45:17,440
Secondly, we have a walking stick, which is often recommended in the literature we've read about quick sand

767
00:45:17,440 --> 00:45:20,440
is a helpful tool for getting out of quick sand.

768
00:45:21,440 --> 00:45:26,440
Third is a bar, which we can throw across the top of the tank, which I should be able to hold on to

769
00:45:26,440 --> 00:45:28,440
in case I get really desperate.

770
00:45:28,440 --> 00:45:32,440
At that point, I'll be making those sounds that you just don't make when you're kidding.

771
00:45:32,440 --> 00:45:35,440
Worst case scenario is that Adam dies.

772
00:45:38,440 --> 00:45:40,440
Of course, we don't want to see that happen.

773
00:45:40,440 --> 00:45:42,440
I'd hate to have to hunt for another co-host.

774
00:45:43,440 --> 00:45:48,440
But we've got all the precautions that we can think of reasonably to have on this.

775
00:45:48,440 --> 00:45:53,440
And I'm fairly sure that he'll be okay one way or another.

776
00:45:53,440 --> 00:45:58,440
The pith helmet is always a good technique for finding someone who is drowned in quick sand

777
00:45:58,440 --> 00:46:00,440
because it will be floating on the surface there.

778
00:46:05,440 --> 00:46:07,440
Oh, look at the white sandy beach.

779
00:46:07,440 --> 00:46:09,440
I don't feel any danger at all.

780
00:46:10,440 --> 00:46:12,440
You will, Adam. You will.

781
00:46:13,440 --> 00:46:15,440
The pump switched on.

782
00:46:15,440 --> 00:46:17,440
Water begins to rise through the sand.

783
00:46:19,440 --> 00:46:24,440
As liquefaction occurs, Adam gets that sinking feeling.

784
00:46:24,440 --> 00:46:27,440
You know, it feels more dangerous now than I thought.

785
00:46:30,440 --> 00:46:31,440
Whoa!

786
00:46:32,440 --> 00:46:33,440
Let's go!

787
00:46:34,440 --> 00:46:36,440
Well, I started going down really slowly.

788
00:46:36,440 --> 00:46:39,440
Then when the water got up to my chest in the sand and water mixture,

789
00:46:39,440 --> 00:46:43,440
I kind of felt where I hit my buoyant point, which was just probably right about here.

790
00:46:43,440 --> 00:46:48,440
Now we've turned the pump off, and I'll tell you, I'm not going to be able to get back out of here

791
00:46:48,440 --> 00:46:50,440
until we turn the pump back on.

792
00:46:50,440 --> 00:46:55,440
Adam is far less dense than the quick sand, and so he's suspended.

793
00:46:55,440 --> 00:47:00,440
I think we've created a very realistic scenario for a worst case scenario quick sand.

794
00:47:00,440 --> 00:47:01,440
I'm drowning you bastard.

795
00:47:02,440 --> 00:47:06,440
We're using incredibly fine sand, usually called sugar sand.

796
00:47:06,440 --> 00:47:10,440
We've got water bubbling up through it, like an artesian well,

797
00:47:10,440 --> 00:47:15,440
and, you know, when we get it working, we definitely go down.

798
00:47:26,440 --> 00:47:28,440
Now it's Jamie's turn in the tank.

799
00:47:32,440 --> 00:47:37,440
That's amazing. This is just so buoyant.

800
00:47:37,440 --> 00:47:39,440
I'm totally floating here.

801
00:47:39,440 --> 00:47:40,440
Yeah!

802
00:47:41,440 --> 00:47:45,440
And I'm not touching the bottom, so look at the buoyancy on that.

803
00:47:45,440 --> 00:47:48,440
I'm like a piece of styrofoam in here.

804
00:47:48,440 --> 00:47:51,440
This is more fun than to be allowed.

805
00:47:53,440 --> 00:47:58,440
Alright, what is our final verdict on movie-style killer quick sand?

806
00:47:58,440 --> 00:48:02,440
Well, we know that people, and even animals, have died in quick sand,

807
00:48:02,440 --> 00:48:06,440
but it's usually because of exposure of some sort, like dehydration.

808
00:48:06,440 --> 00:48:11,440
You know, they were no longer capable of extracting themselves, so they stayed there until they died.

809
00:48:11,440 --> 00:48:13,440
And the elements got to them.

810
00:48:13,440 --> 00:48:17,440
So it's not really like the quick sand dragged them under slowly,

811
00:48:17,440 --> 00:48:19,440
like we see in the movies, and then drowned them.

812
00:48:19,440 --> 00:48:26,440
No, in fact, you're quite buoyant, because the quick sand is sort of a mixture of sand and water

813
00:48:26,440 --> 00:48:29,440
that's actually quite heavy, and you float like a cork on it.

814
00:48:29,440 --> 00:48:32,440
The best thing you can do is just lay on your back,

815
00:48:32,440 --> 00:48:35,440
and you're going to bob around fairly high up in it,

816
00:48:35,440 --> 00:48:39,440
and then, of course, use the vine or the walking stick or whatever happens to be handy

817
00:48:39,440 --> 00:48:42,440
to try and gently pull yourself out of it.

818
00:48:42,440 --> 00:48:46,440
So the MythBuster's final word on Hollywood-style killer quick sand,

819
00:48:46,440 --> 00:48:48,440
confirm plausible or busted?

820
00:48:48,440 --> 00:48:50,440
Surprised you even have to ask.

821
00:48:50,440 --> 00:48:53,440
It's absolutely busted. No such thing.

822
00:48:53,440 --> 00:48:55,440
I agree. Completely busted.

823
00:48:56,440 --> 00:48:59,440
The MythBuster

824
00:49:26,440 --> 00:49:29,440
The MythBuster