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Remember, don't try this at home.

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We're what you call experts.

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On this episode of MythBusters, guns at the ready.

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Well, this is a little more macho.

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As Jamie and Adam head for the deep end.

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To test once and for all if bullets really are...

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...stopped by water.

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Hopefully we'll be gone before the pool fully drains.

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And for the build team, it's Playground Pandemonium.

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Can you ever do a full 360...

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...a flat push...

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...on a swing set?

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Personally, I don't think that this is a safe thing to be doing.

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They're gonna do whatever it takes.

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Hold onto your seats.

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You're in for a wild ride.

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Who are the MythBusters?

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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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We're either gonna die or we're gonna fly.

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Between them more than 30 years special effects experience.

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That was intense.

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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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Another Myth where we get to fire some guns.

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What's this one all about?

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The Myth is that you're being shot at.

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You dive underwater.

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The water protects you from the bullets.

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I've seen this in countless Hollywood movies.

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The heroes being chased by the bad guys.

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He jumps off a bridge and into a river.

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They all start shooting where they think he is.

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And he escapes totally unscathed.

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Well, I have no doubt that the water's gonna slow down...

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...and eventually stop a bullet.

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But what we have to test is how deep would you have to be...

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...to be protected by it?

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How deep do you have to dive to survive?

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The MythBusters will build a 10 foot tall acrylic tank.

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Add some ballistics gel, fill it with water and start shooting.

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They'll move the gel up and down until they learn the survival depth...

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...for each gun they fire.

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Jamie begins work on the water tank.

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To cope with the force of gunshots...

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...the inch thick acrylic is held in place by iron girders.

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Adam, on the other hand, is working on something smaller.

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I'm starting to make a plexiglass box that will hold my ballistics gel block...

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...and allow it to be adjustable within our...

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...what do you call this? Our bullet bench model fish tank sort of thing.

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Also known as the ballistics tank.

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Adam's gel holding box will slide into the tank...

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...where it will be raised or lowered to any given depth.

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And the gel?

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Well, believe it or not, the recipe comes courtesy of the FBI.

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And while the gel setting, the tank's ready to be filled up.

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Music

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Slowly, the leaks are starting to appear.

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Their tank is marginally more waterproof than a sieve.

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In the meantime, the ballistics gel is all set.

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Its flesh like consistency is such that if a bullet goes through it, you'd be dead.

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If it doesn't, you'd live to tell the tale.

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To be honest, until right now, I wasn't sure that that was going to work.

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The rig is all fired up.

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Now the team just need to work out what to shoot it with.

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I think we should start out with the 9mm pistol that we have.

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And then we could do the M1 carbine and a shotgun.

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And then there's the big 50, the 50 caliber rifle, which is sort of the most powerful thing that you can own.

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And in fact, you can't own it in California.

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So we'll have to borrow one?

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We'll have to borrow one.

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Well, that ought to silence most of our detractors in this one.

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But I expect we'll still get some complaints.

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Yeah, you didn't use a cannon or something.

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Cannons aside, Jamie goes shopping for the rest of the firepower.

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And he's come to the right place.

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They've got more guns here than a Tarantino movie.

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This is like an elephant gun.

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What's that fancy black one there?

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Well, this is a little more macho.

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Macho Jamie's got enough firepower to start a military coup, let alone test this watery myth.

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He's even arranged to borrow the dreaded 50 caliber.

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This is a workout just picking it up.

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It weighs about 50 pounds.

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So can I see one of the bullets?

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Yeah.

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Yeah.

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All right, well, that's what this fires.

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It's smaller than my head.

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It's all right.

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Will he dare fire this mother indoors?

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Well, that depends on how the other guns do.

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And the starting gun is the smallest, the 9 millimeter.

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So we're a 9 millimeter pistol, 147 grain round, distance of 6 feet.

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Okay, the gun is loaded.

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Three, two, one.

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Interesting.

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So where's the bullet?

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That looks like we went right through the ballistics gel, Jamie.

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Sure enough, the bullet fired at 960 feet per second when cleaned through the gel.

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This means it was a fatal hit.

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Six feet of water, eight enough to stop a 9 mil pistol.

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So the team lower the gel to seven feet.

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Okay, this is 9 millimeter pistol, 147 grain round at seven feet.

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That's another one that went through.

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Shall we lower it to eight feet?

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Okay, this is 9 millimeter pistol at eight feet.

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Three, two, one.

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And the result?

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Whoa, no, that didn't go all the way through.

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Jamie?

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Yeah.

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It's about half an inch under the surface of the ballistics gel.

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It's a non-lethal hit, eight feet under, and you're safe from a 9 mil.

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And for the next test, the shotgun.

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There's that sound.

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James, are the minutes ready?

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So this is the three inch deer slug out of a shotgun.

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This is awkward.

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Three, two, one.

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It's busted but tanked.

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Back off, back off.

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And water spilling straight onto the lights.

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This is seriously dangerous.

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Luckily, the power is pulled before anyone gets electrocuted.

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Just can't come out.

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The team are safe, at least for now.

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Jesus wet, Jamie.

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There's a huge crack in the front piece here.

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Surprisingly, firing a pump action shotgun inside, not a good idea.

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But in all the mayhem, what exactly happened to the slug?

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We saw the little shotgun slugs sitting on top of our ballistics gel and thought,

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erroneously it turns out that it hadn't punctured the ballistics gel.

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But in fact, we looked carefully, we can see that not only did it puncture the ballistics gel,

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but knocked a massive chunk, a cone-sized chunk out of the bottom of the ballistics gel.

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That's definitely a lethal hit.

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They pierce the gel, burst the tank, and maybe busted this watery myth.

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Later, Adam and Jamie head to the pool to solve their shotgun slip-up.

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Three, two, one.

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But next...

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Coming up on MythBusters, is it possible to go 360 degrees around a swing set?

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Ahhhh!

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It's one of the great playground parables.

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If you try hard enough, can you get someone to swing over the top?

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What a trooper. Not one complaint all day.

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The build team is about to become King of the Swings.

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What is the myth, Grant?

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The claim is that if you get up enough speed, you can actually swing all the way around a swing set,

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make a complete revolution, without falling out.

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Sounds like a good way to break your neck.

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This is one where, quite honestly, I have no idea what the result's gonna be.

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So what's the plan? How are you gonna do this?

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The overall plan is to purchase a standard regulation playground swing set, and try it with one of us.

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And when that doesn't work?

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And when that doesn't work, then we'll goose it up and take it the next step.

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Yet another common everyday item turned deadly.

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The build team members are going back to their school days to test a classic kiddy myth.

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Can you ever swing all the way around a swing set?

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It's a dangerous challenge, so don't try this at home, kids.

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Leave this kind of myth-busting to the experts.

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Today, Tauri's in charge of safety.

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And he's already made an alarming find.

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Warning. This swing was designed for use by children only, not for adult use.

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We have three adults that are gonna be trying this out.

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This is not rated for that weight.

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So just to be sure, Tauri adds more mats.

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And decides to test exactly how safe they are.

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Alright, so this is for sight.

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I think we need some softer pads.

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As Tauri continues being a human crash test dummy, the others are plotting something a little more scientific.

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They're building a giant calibrated scale, which, when coupled with the high-speed camera,

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will allow them to work out whether they're coming close to generating sufficient force needed for a chain-straight 360.

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This myth is a battle between the strength of the pusher driving the swing up

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and the force of gravity pulling the frustrated swinger down.

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The pusher must propel the swing fast.

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Centripetal force, which depends on this velocity, maintains the circular motion.

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As the swing gets higher, if centripetal force is less than the force of gravity,

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the chains will go slack and the swinger will fall out of the sky.

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The high-speed camera will reveal the height at which the chains go loose

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and the exact velocity of the swinger.

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If no swingers get close, the team can use these figures to learn what it will take to go full circle.

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Okay, test number one, me under my own strength.

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Watch out.

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So, Carrie, you're going to want to swing to your maximum speed.

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Once you get up to that point, call out to the high-speed camera and they'll record it.

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Okay, I'm getting to the point where the chain's starting to get loose when I get to the top.

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So, I'm thinking I'm at my maximum.

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Even at her maximum, Carrie's way off a 360.

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Whoa!

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You went over horizontal.

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Your swing technique is excellent.

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The high-speed sure proves that, and it helps the team work out that Carrie reached a max height of 11 feet

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and swung at 23 and a half feet per second.

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Okay, who's up next?

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Ready.

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Test number two, Tori underneath his own strength.

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All right, ready?

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Can safety officer Tori launch the child swing any further around?

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All right.

201
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I'm okay.

202
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Are you okay, dude?

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Oh, I'm so glad we have the mats.

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So, the swing really wasn't rated for adult use.

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Time's rolling up.

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He just couldn't generate enough force to overcome gravity.

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The higher he goes, the harder he falls.

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But if it's any consolation, they got the numbers they needed.

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So, you achieve 22.4 feet per second, less than Carrie.

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Before Grant's turn, Tori welds the swing firmly shut.

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I'm not gonna let that happen again.

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And that's not the only precaution, because after Tori's accident,

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Grant is suiting up for safety.

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All right, it's gonna be test three.

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Grant under full power, two people pushing.

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With two pushers, power ranger Grant's picking up speed fast.

217
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Do the big push.

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Go!

219
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But he's going to need to use his superpowers to get over this swing bar.

220
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Even with two people pushing, Grant goes no closer to 360

221
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than Carrie and Tori did on their own.

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23 feet per second and 11.5 feet in height.

223
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So, even little Grant was too heavy to push all the way 360.

224
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Hey, that suit was cumbersome and it was getting a little scary.

225
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Yeah, it's still way too dangerous.

226
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So, what's the plan?

227
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Little Simulate Susie.

228
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And how much does Simulate Susie weigh?

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She weighs 65 pounds.

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All right, that's about your average weight of like a seven or eight year old?

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Yeah, and she's not gonna complain.

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For a Simulate Susie, sitting on a swing will be like a walk in the park.

233
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After all, for her last outing, she was strapped into a crashing airplane.

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Of course, little Susie can't hold on for herself, so the build team wire her in.

235
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But please don't try this at home.

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But using Susie isn't the only change.

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The team are also having the length of chain,

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because a shorter chain needs less velocity to make the 360.

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In with her.

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In with her and then pull off.

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Yeah.

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Lastly, they tie ropes around her, so that this time, they can really give it their all.

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The build team boys eave hard, but still know 360.

244
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So, Tari calls in some beefy bikers.

245
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Yeah, we need a little help.

246
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All right.

247
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We'll see you in a bit.

248
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Now that was quick.

249
00:16:11,000 --> 00:16:12,000
You made it.

250
00:16:12,000 --> 00:16:15,000
Dude, we need a little help.

251
00:16:15,000 --> 00:16:17,000
Oh, man, how you doing?

252
00:16:17,000 --> 00:16:22,000
These Hell's Angels may be just what little Susie needs.

253
00:16:24,000 --> 00:16:25,000
You guys ready?

254
00:16:25,000 --> 00:16:30,000
One, two, here we go.

255
00:16:34,000 --> 00:16:35,000
Success.

256
00:16:35,000 --> 00:16:37,000
Susie's over the bar.

257
00:16:37,000 --> 00:16:40,000
This myth is still alive and kicking.

258
00:16:41,000 --> 00:16:42,000
That's all we needed.

259
00:16:42,000 --> 00:16:44,000
It's just a little muscle.

260
00:16:48,000 --> 00:16:52,000
Later, the build team go all out for a 360.

261
00:16:57,000 --> 00:17:02,000
But after the break, Adam and Jamie unleash the big guns.

262
00:17:04,000 --> 00:17:08,000
Adam and Jamie have had a shotgun setback.

263
00:17:08,000 --> 00:17:10,000
Does water stop bullets?

264
00:17:10,000 --> 00:17:13,000
Well, from a 12 gauge, absolutely not.

265
00:17:16,000 --> 00:17:19,000
It ruptured the tank and flooded the store.

266
00:17:19,000 --> 00:17:21,000
Flaps off, flaps off.

267
00:17:21,000 --> 00:17:25,000
Well, it looks like we're not going to be shooting any more guns off in the shop.

268
00:17:25,000 --> 00:17:30,000
Yeah, you know, I think the problem with our rig is it doesn't have to be a gun.

269
00:17:30,000 --> 00:17:35,000
That's a worst case scenario, but all we really need is obviously a longer column of water,

270
00:17:35,000 --> 00:17:38,000
but a column of water could be at an angle, like a 30 degree angle.

271
00:17:38,000 --> 00:17:42,000
Which would actually be more realistically the way you would get shot at,

272
00:17:42,000 --> 00:17:45,000
like somebody off to the side of a lake or a river or whatever.

273
00:17:45,000 --> 00:17:48,000
Their first rig was the worst case scenario.

274
00:17:48,000 --> 00:17:53,000
With the shooter directly above, the target needs to be deeper than the furthest bullet.

275
00:17:53,000 --> 00:17:56,000
Now, with the shooter shooting at 30 degrees,

276
00:17:56,000 --> 00:17:59,000
the target can be much closer to the surface.

277
00:17:59,000 --> 00:18:04,000
For an 8 foot penetrating bullet, he'd need to be just 4 feet underwater.

278
00:18:08,000 --> 00:18:14,000
Adam begins recycling the busted vertical tank into the new longer 30 degree rig.

279
00:18:16,000 --> 00:18:21,000
He's doubling the firing range, as he makes a 20 foot railway on the water.

280
00:18:21,000 --> 00:18:26,000
He's doubling the firing range, as he makes a 20 foot railway on which the ballistic gel

281
00:18:26,000 --> 00:18:30,000
will be slid up or down to the necessary distance.

282
00:18:33,000 --> 00:18:38,000
While Adam's been working, Jamie's found somewhere to shoot into water at 30 degrees.

283
00:18:38,000 --> 00:18:43,000
It's not a lake or a river, but a public swimming pool.

284
00:18:45,000 --> 00:18:49,000
Worst case scenario today is that somebody dies from a bullet wound.

285
00:18:50,000 --> 00:18:56,000
The team head for the deep end to cause a splash with their calibrated rail rig.

286
00:18:58,000 --> 00:19:02,000
While gun expert Gina Ralske prepares their lethal weapons.

287
00:19:04,000 --> 00:19:09,000
The rig's in place, but because the pool is slightly shallower than they'd expected,

288
00:19:09,000 --> 00:19:14,000
it's ended up at an angle of 23 degrees rather than the plan 30.

289
00:19:15,000 --> 00:19:18,000
Everything's set for the ballistic gel.

290
00:19:19,000 --> 00:19:24,000
Now the box jellyfish is one of the most lethal foes you'll encounter in your average swimming pool.

291
00:19:24,000 --> 00:19:29,000
They prefer temperatures between 79 and 82 degrees and they give a nasty sting.

292
00:19:29,000 --> 00:19:34,000
If you see one, just swim in the other direction and remember, he's just as afraid of you.

293
00:19:35,000 --> 00:19:41,000
With the jellyfish in place and the refraction aimer marked up, the pool experiment can begin.

294
00:19:42,000 --> 00:19:51,000
And first weapon up is a replica Civil War rifle, which will be firing Jamie's homemade bullets at a thousand feet per second.

295
00:19:52,000 --> 00:19:59,000
This is the black powder rifle, ballistic gel at a distance of 15 feet.

296
00:19:59,000 --> 00:20:01,000
Okay, cocking.

297
00:20:02,000 --> 00:20:08,000
And three, two, one.

298
00:20:11,000 --> 00:20:13,000
Ha ha ha ha.

299
00:20:14,000 --> 00:20:19,000
It's a bullseye on the cellophane, but where did the round end up?

300
00:20:22,000 --> 00:20:24,000
That's the...

301
00:20:25,000 --> 00:20:27,000
directly to where I am.

302
00:20:27,000 --> 00:20:28,000
Where you are?

303
00:20:28,000 --> 00:20:30,000
It's about 25 feet.

304
00:20:30,000 --> 00:20:37,000
The bullet veered way off target, so the confused team try again with the gel at 5 feet.

305
00:20:38,000 --> 00:20:43,000
Three, two, one.

306
00:20:45,000 --> 00:20:47,000
That might have made it in.

307
00:20:48,000 --> 00:20:53,000
But when Adam looks for it, it's nowhere to be seen and it's certainly not in the gel.

308
00:20:54,000 --> 00:21:00,000
I think when we're done with this, I think we'll be able to say that if you're, you know, somehow transported back to the time of the Civil War

309
00:21:00,000 --> 00:21:06,000
and you're being chased by a battalion of soldiers, then actually diving into the water might actually save you.

310
00:21:07,000 --> 00:21:10,000
But how deep would a time traveler need to dive?

311
00:21:10,000 --> 00:21:15,000
The team now test three feet and for that, they step up safety.

312
00:21:16,000 --> 00:21:20,000
Okay, black powder rifle, distance of three feet.

313
00:21:24,000 --> 00:21:27,000
Oh yeah, I see the round in the back of the box.

314
00:21:27,000 --> 00:21:30,000
That's definitely lethal at three feet.

315
00:21:31,000 --> 00:21:34,000
Dead through three feet, safe through five.

316
00:21:34,000 --> 00:21:40,000
But with the 23 degree shooting angle, you'd actually be safe just two feet under the surface.

317
00:21:44,000 --> 00:21:54,000
And next up, it's the first of the supersonic weapons, the 223 rifle, firing at a frightening 2,500 feet per second.

318
00:21:55,000 --> 00:21:59,000
So this is the 223 at 10 feet.

319
00:22:00,000 --> 00:22:03,000
Now that was loud.

320
00:22:04,000 --> 00:22:07,000
Frogman Adams in to assess the damage.

321
00:22:08,000 --> 00:22:10,000
That was right there.

322
00:22:12,000 --> 00:22:15,000
Well, there's your problem.

323
00:22:17,000 --> 00:22:19,000
This thing just exploded. Are these hollow points?

324
00:22:19,000 --> 00:22:21,000
No, just full metal jacket.

325
00:22:21,000 --> 00:22:23,000
That's the very tip of it.

326
00:22:24,000 --> 00:22:27,000
It's littered down there. I got up all the pieces as I could.

327
00:22:27,000 --> 00:22:32,000
Well, Adam, let's just bring this sucker right up to the shortest distance we can do. What's that, like three feet?

328
00:22:32,000 --> 00:22:34,000
Absolutely, three feet.

329
00:22:34,000 --> 00:22:38,000
Three, two, one.

330
00:22:41,000 --> 00:22:44,000
Surely three feet can't stop that mother.

331
00:22:47,000 --> 00:22:50,000
The tip of the bullet was just resting at the ballistics gel.

332
00:22:50,000 --> 00:22:53,000
Wow, this thing's breaking up the minute it hits the water.

333
00:22:53,000 --> 00:22:56,000
So, you know, no wonder we can't hit the ballistics gel.

334
00:22:56,000 --> 00:23:02,000
So as surprised as I am to say it, 223 myth actually confirmed.

335
00:23:03,000 --> 00:23:15,000
On entering the water, the supersonic 223 bullet decelerates so fast that it disintegrates into tiny black fragments, which sink slowly to the bottom of the pool.

336
00:23:16,000 --> 00:23:23,000
So the team jumped the gun to the M1, firing at 2,800 feet per second.

337
00:23:23,000 --> 00:23:28,000
This is a serious weapon and one that's already been through the Mythbusters mill.

338
00:23:30,000 --> 00:23:35,000
When Adam and Jamie tested how tough bulletproof glass was, no guns could penetrate it.

339
00:23:36,000 --> 00:23:40,000
Until that is, they tried the M1.

340
00:23:41,000 --> 00:23:43,000
That went right through it.

341
00:23:43,000 --> 00:23:46,000
This puppy flew straight through.

342
00:23:46,000 --> 00:23:50,000
And three, two, one.

343
00:23:52,000 --> 00:23:58,000
And the results? The same as for the 223, tiny fragments of bullet.

344
00:23:59,000 --> 00:24:06,000
You know what, instead of going to five feet, let's bring this thing right back up to, you know, that two foot, three foot mark that we had.

345
00:24:06,000 --> 00:24:11,000
Okay. This is the M1 Grand 30 caliber at two feet.

346
00:24:11,000 --> 00:24:13,000
Two, one.

347
00:24:14,000 --> 00:24:19,000
At two feet, the powerful M1 just pierces the ballistics gel.

348
00:24:21,000 --> 00:24:27,000
It's about four inches in, which by our calibration is just enough to break the skin.

349
00:24:28,000 --> 00:24:33,000
Incredibly, this myth is confirmed for another supersonic gun.

350
00:24:33,000 --> 00:24:40,000
Considering that out of water, that very bullet, when we were testing our blast chamber, went through two and a half inches of bulletproof glass.

351
00:24:41,000 --> 00:24:48,000
The water obviously has a profound effect on the bullet in completely eliminating its deadliness very quickly.

352
00:24:49,000 --> 00:24:54,000
Two feet underwater, ten inches down from the surface. The myth's confirmed.

353
00:24:55,000 --> 00:25:02,000
That only leads the frightening 50 cal, but are the Mythbusters brave enough to shoot this brute into the pool?

354
00:25:03,000 --> 00:25:04,000
Oh my gosh.

355
00:25:04,000 --> 00:25:10,000
Coming right up, circus chaos as the build team tried to swing full circle.

356
00:25:15,000 --> 00:25:17,000
Remember, don't try this at home.

357
00:25:18,000 --> 00:25:20,000
We're what you call experts.

358
00:25:22,000 --> 00:25:28,000
In the 360 swing myth, the awesome foursome got Susie over the top.

359
00:25:29,000 --> 00:25:32,000
But it turns out to be not quite what the team had hoped for.

360
00:25:33,000 --> 00:25:37,000
Moments after Susie goes over the bar, she just falls out of the sky.

361
00:25:38,000 --> 00:25:42,000
It's not a chain straight 360, so it's back to the drawing board.

362
00:25:43,000 --> 00:25:47,000
So you guys needed to call in the big guns to get her over the bar, did ya?

363
00:25:48,000 --> 00:25:54,000
Yeah, we cleared the bar, but it wasn't a full 360. It was more like 300 and then she fell.

364
00:25:54,000 --> 00:26:01,000
Well, we know this myth is busted. You can't under your own power do a 360, but as Mythbusters, we kinda wanna see what it takes to actually do it.

365
00:26:02,000 --> 00:26:06,000
So we decided to build a scale model to help us figure out if it was even possible.

366
00:26:08,000 --> 00:26:11,000
Hello. I'm Susie. Hello.

367
00:26:12,000 --> 00:26:14,000
Lost it. It's too late.

368
00:26:15,000 --> 00:26:18,000
Tori, the minimum amount of push to get it 360.

369
00:26:18,000 --> 00:26:19,000
Okay.

370
00:26:19,000 --> 00:26:21,000
Test number one, Tori Power on the model.

371
00:26:21,000 --> 00:26:22,000
Ooh, that was good.

372
00:26:22,000 --> 00:26:24,000
That was pretty good.

373
00:26:25,000 --> 00:26:34,000
And her speed, 36 feet per second, way faster than even Grant swung at, and maybe too fast to replicate on the full-size swing.

374
00:26:34,000 --> 00:26:39,000
But there is a way to make it easier. Use rigid arms.

375
00:26:42,000 --> 00:26:46,000
With rigid arms, no energy is wasted in keeping the chain straight.

376
00:26:47,000 --> 00:26:53,000
All the forces are channeled into velocity, so a much slower speed is needed to go 360.

377
00:26:56,000 --> 00:26:57,000
That's it.

378
00:26:58,000 --> 00:27:03,000
Bingo. The rigid arm only needed a velocity of 10 feet per second.

379
00:27:03,000 --> 00:27:08,000
And that means that the next stop is the big top, the circus.

380
00:27:10,000 --> 00:27:14,000
I'm standing here in my headband and my leg warmers because we've come to Oakland to trap these arts.

381
00:27:14,000 --> 00:27:19,000
We hear that they have a swing that's guaranteed to do 360, and I want to try it.

382
00:27:22,000 --> 00:27:27,000
The build team have found a full-size rigid arm swing and a circus acrobat,

383
00:27:27,000 --> 00:27:31,000
who may be able to train them to go full circle.

384
00:27:32,000 --> 00:27:35,000
Are you one of those kids that tried to do a 360 on the swing?

385
00:27:35,000 --> 00:27:39,000
I've been in the circus my whole life. I'm a seventh generation circus performer, so...

386
00:27:39,000 --> 00:27:40,000
Wow.

387
00:27:40,000 --> 00:27:45,000
I really didn't have swing sets. I had Russian swings, trampolines, flying trapezes my whole life, so...

388
00:27:46,000 --> 00:27:50,000
Eric's clearly the man to help the build team go 360.

389
00:27:51,000 --> 00:27:56,000
France up first and harnessed in, he's ready for some negative Gs.

390
00:27:57,000 --> 00:27:59,000
Okay, Eric, are you sure I'm safe?

391
00:28:00,000 --> 00:28:01,000
Um, yeah.

392
00:28:04,000 --> 00:28:09,000
And with those words of encouragement, it's time to swing this puppy around.

393
00:28:10,000 --> 00:28:12,000
I'm shrugging my shoulders and it's...

394
00:28:12,000 --> 00:28:13,000
You don't have to shrug yet.

395
00:28:14,000 --> 00:28:16,000
Yeah, you're not upside down yet, dude.

396
00:28:16,000 --> 00:28:17,000
Open your eyes!

397
00:28:18,000 --> 00:28:22,000
With Eric on board, the swing begins to creep higher and higher.

398
00:28:25,000 --> 00:28:27,000
They're already over 220 degrees.

399
00:28:30,000 --> 00:28:32,000
But Grants not looking so hot.

400
00:28:33,000 --> 00:28:34,000
He looks like he's about to hurl.

401
00:28:35,000 --> 00:28:36,000
I need a break!

402
00:28:36,000 --> 00:28:40,000
Nausea kicks in at 230 degrees.

403
00:28:41,000 --> 00:28:44,000
It was really, really weird when we're getting up there.

404
00:28:44,000 --> 00:28:48,000
I had to stop like I was kind of grunting, but I just had to kind of stop and focus.

405
00:28:48,000 --> 00:28:49,000
Okay, here I come.

406
00:28:50,000 --> 00:28:52,000
Can Carrie do any better?

407
00:28:54,000 --> 00:28:56,000
She's certainly not as green as Grant.

408
00:28:57,000 --> 00:28:58,000
Okay, go ahead and lower your grip.

409
00:29:02,000 --> 00:29:03,000
Yeah!

410
00:29:03,000 --> 00:29:05,000
Oh my gosh, that's enough!

411
00:29:05,000 --> 00:29:09,000
It carries the highest so far, reaching 240 degrees.

412
00:29:10,000 --> 00:29:12,000
Can Tori make the elusive 360?

413
00:29:13,000 --> 00:29:17,000
It's a challenge thing, um, the fact that both of them didn't make it.

414
00:29:18,000 --> 00:29:19,000
I have to make it.

415
00:29:20,000 --> 00:29:22,000
And now, for the main attraction.

416
00:29:28,000 --> 00:29:29,000
And he's away.

417
00:29:30,000 --> 00:29:32,000
This, of course, is the easy bit.

418
00:29:33,000 --> 00:29:34,000
And Eric's up.

419
00:29:35,000 --> 00:29:37,000
Now they can really get this thing going.

420
00:29:40,000 --> 00:29:42,000
Already they're past Grant's best efforts.

421
00:29:45,000 --> 00:29:46,000
Oh, you're almost there!

422
00:29:48,000 --> 00:29:49,000
Sorry.

423
00:29:51,000 --> 00:29:52,000
They're over 280.

424
00:29:53,000 --> 00:29:54,000
Oh, you're getting it!

425
00:29:58,000 --> 00:30:00,000
With one final push.

426
00:30:00,000 --> 00:30:01,000
Push!

427
00:30:02,000 --> 00:30:03,000
Push!

428
00:30:04,000 --> 00:30:05,000
It's just too much.

429
00:30:06,000 --> 00:30:09,000
Tori's as tired as a slug scaling a chimney.

430
00:30:10,000 --> 00:30:13,000
His mind wants to continue, but his body's given up.

431
00:30:14,000 --> 00:30:16,000
I was like, yeah, we're gonna get it!

432
00:30:16,000 --> 00:30:18,000
And then my legs were like, no you're not.

433
00:30:19,000 --> 00:30:21,000
Well, we came here for a 360.

434
00:30:22,000 --> 00:30:23,000
We've got to leave with one.

435
00:30:23,000 --> 00:30:24,000
Yeah.

436
00:30:24,000 --> 00:30:25,000
Well, I'll do 360 for you guys.

437
00:30:26,000 --> 00:30:27,000
You'll do it for us?

438
00:30:27,000 --> 00:30:28,000
No problem.

439
00:30:28,000 --> 00:30:29,000
All right.

440
00:30:31,000 --> 00:30:35,000
Eric, the seventh generation circus performer, takes center stage.

441
00:30:38,000 --> 00:30:39,000
It wants to go around.

442
00:30:40,000 --> 00:30:41,000
There you go!

443
00:30:42,000 --> 00:30:43,000
Nice!

444
00:30:44,000 --> 00:30:46,000
The ringmaster is over.

445
00:30:46,000 --> 00:30:49,000
So for rigid arms, this myth is confirmed.

446
00:30:50,000 --> 00:30:52,000
A 360 is really possible.

447
00:30:55,000 --> 00:30:57,000
Eric, hey, thanks so much for all your help today.

448
00:31:00,000 --> 00:31:05,000
With the rigid arms mission accomplished, the team must return to their chain swing

449
00:31:05,000 --> 00:31:08,000
to try to repeat this amazing feat.

450
00:31:09,000 --> 00:31:15,000
Next up, the build team unlock the secret to a chain straight 360.

451
00:31:18,000 --> 00:31:22,000
Later, back at the pool, will the big 50 get fired?

452
00:31:23,000 --> 00:31:24,000
This is the 50 caliber.

453
00:31:31,000 --> 00:31:36,000
At the poolside, water is being surprisingly bullet proof.

454
00:31:36,000 --> 00:31:41,000
A few feet under and you'd be safe from all the firepower they've used.

455
00:31:42,000 --> 00:31:49,000
Until now, when they're about to fire, the biggest gun in town at 3,000 feet per second.

456
00:31:50,000 --> 00:31:56,000
I don't know whether you understand what is about to happen here, but this is the M1 grant.

457
00:31:57,000 --> 00:31:58,000
Yeah.

458
00:31:58,000 --> 00:31:59,000
This is the 50 caliber.

459
00:32:00,000 --> 00:32:03,000
The M1 grant holds 150 grains.

460
00:32:04,000 --> 00:32:06,000
This one is 600 grains.

461
00:32:06,000 --> 00:32:07,000
This kills you.

462
00:32:07,000 --> 00:32:09,000
This kills you and everyone else in the room.

463
00:32:11,000 --> 00:32:18,000
Despite its crazy size, it looks like Jamie's going to bite the bullet and really fire this thing.

464
00:32:19,000 --> 00:32:24,000
Yeah, let's just be prepared to get unpacked and get out of here really fast.

465
00:32:25,000 --> 00:32:28,000
Hopefully we'll be gone before the pool fully drains.

466
00:32:31,000 --> 00:32:34,000
Jamie's not being quite so lighthearted.

467
00:32:41,000 --> 00:32:42,000
So the safety's off now?

468
00:32:42,000 --> 00:32:43,000
I would think so, yeah.

469
00:32:43,000 --> 00:32:44,000
Okay.

470
00:32:48,000 --> 00:32:52,000
With the bullet loaded, it's time to step back to safety.

471
00:32:52,000 --> 00:32:54,000
For everyone except Jamie.

472
00:32:55,000 --> 00:32:57,000
Okay, eyes and ears.

473
00:32:57,000 --> 00:33:00,000
This is the 50 caliber at 10 feet.

474
00:33:03,000 --> 00:33:07,000
Come hell or high water, this beast is going to get fired.

475
00:33:08,000 --> 00:33:12,000
Three, two, one.

476
00:33:18,000 --> 00:33:21,000
That was more like an explosion than a gunshot.

477
00:33:21,000 --> 00:33:23,000
But where's the banana bullet?

478
00:33:24,000 --> 00:33:27,000
There is no bullet in the ballistics gel.

479
00:33:28,000 --> 00:33:35,000
But with this weapon, the bullet could have gone through the gel and buried itself in the far side of the pool.

480
00:33:38,000 --> 00:33:39,000
What do you got?

481
00:33:39,000 --> 00:33:41,000
I got a bunch of stuff.

482
00:33:41,000 --> 00:33:46,000
It expended all its energy within three feet and became totally non-lean.

483
00:33:48,000 --> 00:33:49,000
Wow.

484
00:33:49,000 --> 00:33:54,000
At 23 degrees, even the terrifying 50 cal won't get you.

485
00:33:54,000 --> 00:33:57,000
Just 14 inches under and you'd be safe.

486
00:33:58,000 --> 00:34:00,000
Well, Adam, this is totally amazing.

487
00:34:00,000 --> 00:34:03,000
Even with the 50 caliber and armor piercing around,

488
00:34:03,000 --> 00:34:06,000
it lost all its energy within the first couple of feet.

489
00:34:06,000 --> 00:34:10,000
It ripped the copper jacket off of it and didn't penetrate the target.

490
00:34:10,000 --> 00:34:12,000
Just like all our other high-powered rifles.

491
00:34:12,000 --> 00:34:13,000
Yeah.

492
00:34:13,000 --> 00:34:16,000
And yet with the slower muzzle velocity,

493
00:34:16,000 --> 00:34:19,000
weapons like handgun, the black powder rifle and the shotgun,

494
00:34:19,000 --> 00:34:22,000
we found deeper penetration, sometimes as much as eight feet.

495
00:34:22,000 --> 00:34:27,000
But at a 30 degree angle, you'd still only have to get your body under about three feet,

496
00:34:27,000 --> 00:34:28,000
which is quite achievable.

497
00:34:28,000 --> 00:34:31,000
Well, I guess you know what that means.

498
00:34:31,000 --> 00:34:33,000
Yeah, the myth is confirmed.

499
00:34:33,000 --> 00:34:34,000
You would be safe.

500
00:34:35,000 --> 00:34:37,000
Not that I'd want to try it.

501
00:34:47,000 --> 00:34:52,000
A rigid arm swing can indeed go 360.

502
00:34:55,000 --> 00:34:57,000
But chain swings.

503
00:34:57,000 --> 00:35:00,000
Well, the build team tried their best, but got nowhere.

504
00:35:00,000 --> 00:35:02,000
This myth is busted.

505
00:35:03,000 --> 00:35:06,000
So now in classic myth busters fashion,

506
00:35:06,000 --> 00:35:10,000
they're going to do whatever it takes to get a chain swing up and over the bar.

507
00:35:11,000 --> 00:35:15,000
We came up with sort of a wild-y coyote solution to this 360 problem.

508
00:35:15,000 --> 00:35:18,000
We're just going to strap a few rockets to a little simulated Susie

509
00:35:18,000 --> 00:35:21,000
and just watch her go around the swing set.

510
00:35:22,000 --> 00:35:26,000
No sooner said than done, little Susie's got one glued to her back.

511
00:35:27,000 --> 00:35:31,000
Three, two, one, firing.

512
00:35:35,000 --> 00:35:38,000
Well, the little rocketeer went over the bar,

513
00:35:38,000 --> 00:35:40,000
but not quite as planned.

514
00:35:42,000 --> 00:35:44,000
Well, that test was pretty good.

515
00:35:45,000 --> 00:35:49,000
I think what we need to check out now is what's more important,

516
00:35:49,000 --> 00:35:53,000
tension on the chain or angular velocity,

517
00:35:53,000 --> 00:35:56,000
which is going to push it around in an arc.

518
00:35:57,000 --> 00:36:03,000
So for test two, the rocket is positioned exactly horizontal for maximum velocity.

519
00:36:03,000 --> 00:36:08,000
In three, two, one, firing.

520
00:36:12,000 --> 00:36:17,000
The horizontal rocket sends Susie off into a cataclysmic spin

521
00:36:17,000 --> 00:36:20,000
and blows off her hand.

522
00:36:22,000 --> 00:36:25,000
So for the next test, the rocket is positioned vertically

523
00:36:25,000 --> 00:36:28,000
for max tension on the chain.

524
00:36:28,000 --> 00:36:31,000
In three, two, one, launching.

525
00:36:34,000 --> 00:36:37,000
That was pretty pathetic.

526
00:36:37,000 --> 00:36:40,000
So the vertical rocket was pretty useless.

527
00:36:40,000 --> 00:36:44,000
It's going to be a combination that's needed for this myth.

528
00:36:44,000 --> 00:36:47,000
Something like, say, 40 degrees.

529
00:36:47,000 --> 00:36:49,000
So this is test number four.

530
00:36:49,000 --> 00:36:51,000
Rockets 40 degrees to the horizontal.

531
00:36:52,000 --> 00:36:58,000
Alright, we're armed and launching in three, two, one, fire.

532
00:36:58,000 --> 00:37:02,000
Yes! Yes! Perfect!

533
00:37:02,000 --> 00:37:03,000
That was great.

534
00:37:03,000 --> 00:37:05,000
40 degrees was spot on.

535
00:37:05,000 --> 00:37:08,000
Susie goes 360 and beyond.

536
00:37:08,000 --> 00:37:13,000
So the next stage is to replicate this result on the full-size swing

537
00:37:13,000 --> 00:37:16,000
by strapping on some mammoth missiles.

538
00:37:18,000 --> 00:37:23,000
Coming right up, full-size Susie gets ready for the ride of her life.

539
00:37:33,000 --> 00:37:38,000
Rockets finally made mini Susie go 360.

540
00:37:40,000 --> 00:37:45,000
Now at Hamilton Air Force Base, the mythbusters are about to scale things up

541
00:37:45,000 --> 00:37:50,000
and strap rockets onto their full-size swing to replicate this feat.

542
00:37:50,000 --> 00:37:55,000
Luckily, they've got amateur rocket expert Eric Gates to help them.

543
00:37:56,000 --> 00:38:00,000
A slightly smoother Eric has already helped the mythbusters

544
00:38:00,000 --> 00:38:04,000
test whether there was ever a Ming Dynasty astronaut.

545
00:38:09,000 --> 00:38:15,000
And rocket cars? Thanks to Eric, Adam and Jamie know they can go damn fast

546
00:38:15,000 --> 00:38:17,000
but won't get off the ground.

547
00:38:19,000 --> 00:38:26,000
But this time he's got to jet-simulate Susie 360 degrees round a swing set.

548
00:38:27,000 --> 00:38:31,000
Worst case scenario is this chair is just going to end up flipping all by itself

549
00:38:31,000 --> 00:38:33,000
instead of actually going in a stable direction around.

550
00:38:33,000 --> 00:38:35,000
That's what we have to overcome.

551
00:38:35,000 --> 00:38:39,000
Because Susie is so much bigger than her scaled-down cousin,

552
00:38:39,000 --> 00:38:42,000
the team decide to attach four rockets.

553
00:38:42,000 --> 00:38:47,000
That's 400 pounds of thrust at the magic 40-degree angle.

554
00:38:48,000 --> 00:38:52,000
Once they're on, the igniters are put in and wired up in series.

555
00:38:54,000 --> 00:38:55,000
Why?

556
00:38:55,000 --> 00:38:59,000
If one fails, none of them go. So that's why we wired them in series.

557
00:39:00,000 --> 00:39:04,000
Everything's ready. Jamie's going to give the swing a starting push

558
00:39:04,000 --> 00:39:06,000
and then retreat to safety...

559
00:39:09,000 --> 00:39:12,000
before Eric fires the rockets.

560
00:39:12,000 --> 00:39:15,000
Three, two, one...

561
00:39:15,000 --> 00:39:16,000
Whoa!

562
00:39:24,000 --> 00:39:26,000
Well, dinner 360 just...

563
00:39:28,000 --> 00:39:32,000
Slowed down, it's clear that only one side of the rocket's ignited

564
00:39:32,000 --> 00:39:36,000
and that sends Susie into a gut-brunching spin.

565
00:39:36,000 --> 00:39:39,000
But Eric reckoned that was impossible.

566
00:39:40,000 --> 00:39:44,000
I mean, he said, quote, we rigged them up in series

567
00:39:44,000 --> 00:39:46,000
so that if one failed, they'd all fail.

568
00:39:46,000 --> 00:39:48,000
But that didn't seem to be the case.

569
00:39:48,000 --> 00:39:51,000
It looked like two failed and two worked.

570
00:39:52,000 --> 00:39:55,000
This time Eric puts just one rocket each side.

571
00:39:55,000 --> 00:39:58,000
Then there's less that can go wrong.

572
00:40:00,000 --> 00:40:05,000
With the wiring confirmed, Susie's ready for another wild ride.

573
00:40:05,000 --> 00:40:08,000
One, three, two, one...

574
00:40:10,000 --> 00:40:13,000
...

575
00:40:14,000 --> 00:40:16,000
But maybe not that one.

576
00:40:19,000 --> 00:40:21,000
Okay, stay put.

577
00:40:21,000 --> 00:40:24,000
So what went wrong this time?

578
00:40:26,000 --> 00:40:30,000
The high speed shows that one side fired off just before the other.

579
00:40:30,000 --> 00:40:35,000
It's a fraction of a second, but it's enough to throw Susie into a crazy twist.

580
00:40:36,000 --> 00:40:39,000
But why are they using two rockets anyway?

581
00:40:39,000 --> 00:40:43,000
Well, Grant and Tori made a stellar model when we were in the shop

582
00:40:43,000 --> 00:40:47,000
and they had it completely figured out with where they wanted their rockets

583
00:40:47,000 --> 00:40:49,000
and exactly the angle they wanted.

584
00:40:49,000 --> 00:40:51,000
They wanted just one rocket on her chest

585
00:40:51,000 --> 00:40:54,000
and that seemed to be what propelled her around in 360.

586
00:40:54,000 --> 00:40:58,000
I'm actually not sure why it got modified on the way here.

587
00:40:59,000 --> 00:41:02,000
Whatever the reason, they now unmodify it.

588
00:41:02,000 --> 00:41:06,000
And attach Eric's single biggest rocket dead center.

589
00:41:07,000 --> 00:41:10,000
But because they're worried about Susie's weight,

590
00:41:10,000 --> 00:41:13,000
they opt for a launch angle of 60 degrees.

591
00:41:13,000 --> 00:41:15,000
Three, two, one...

592
00:41:18,000 --> 00:41:22,000
Third time unlucky, but it's not all bad news.

593
00:41:23,000 --> 00:41:26,000
Even though the rocket fired its full ignition,

594
00:41:26,000 --> 00:41:30,000
she didn't spin, she just stayed in one direction, which is ideal.

595
00:41:30,000 --> 00:41:33,000
That means all we need to do is probably drop the angle a bit

596
00:41:33,000 --> 00:41:36,000
and she'll go forward instead of being just pushed down.

597
00:41:36,000 --> 00:41:39,000
They dropped the angle to 40 degrees.

598
00:41:39,000 --> 00:41:42,000
Now everything matches the scale test.

599
00:41:43,000 --> 00:41:48,000
While the fire marshals stand by, Jamie does a final head count.

600
00:41:48,000 --> 00:41:52,000
With the light fading, it's now or never for this myth.

601
00:41:52,000 --> 00:41:54,000
OK, we're good.

602
00:41:55,000 --> 00:41:58,000
Jamie gives her one last push.

603
00:42:00,000 --> 00:42:03,000
And three, two, one...

604
00:42:06,000 --> 00:42:08,000
And she's over.

605
00:42:11,000 --> 00:42:15,000
At last, using the results of the scale model tests,

606
00:42:15,000 --> 00:42:18,000
simulate Susie finally goes the distance.

607
00:42:19,000 --> 00:42:22,000
That's a full wrap on the chain.

608
00:42:22,000 --> 00:42:25,000
Now there's proof that amidst the smoke,

609
00:42:25,000 --> 00:42:28,000
she really did go up and over the bar.

610
00:42:31,000 --> 00:42:36,000
And her chains, while the high speed shows that they were straight the whole way around.

611
00:42:37,000 --> 00:42:41,000
A perfect demonstration of a swing set 360.

612
00:42:44,000 --> 00:42:46,000
For a minute there, I didn't think it was actually going to work.

613
00:42:46,000 --> 00:42:49,000
No, I didn't think it was going to work most of the time.

614
00:42:49,000 --> 00:42:51,000
But how cool was that when she was going...

615
00:42:51,000 --> 00:42:53,000
It ends up on the top of the swing set.

616
00:42:53,000 --> 00:42:59,000
I don't know, by cool, if you mean absolutely terrifying when they started spraying smoke and fire towards us.

617
00:42:59,000 --> 00:43:01,000
Only 15 feet away.

618
00:43:01,000 --> 00:43:03,000
Yeah, cool.

619
00:43:03,000 --> 00:43:06,000
So in the final analysis team, what is the final verdict?

620
00:43:06,000 --> 00:43:09,000
The myth that you can do a full 360 of the swing set, busted, plausible or confirmed.

621
00:43:09,000 --> 00:43:10,000
Totally busted.

622
00:43:10,000 --> 00:43:12,000
Not possible, busted.

623
00:43:12,000 --> 00:43:15,000
Busted, but the rockets were spectacular.

624
00:43:15,000 --> 00:43:17,000
Well, hopefully that's our job.

625
00:43:17,000 --> 00:43:19,000
Tickstrap Rock, it's on Do Everything.