Name: Explosives Engineer & SFX Expert Review Explosions From 'Mission Impossible,' 'The Hurt Locker'
Uploaded: 2020-04-07T02:51:08.000Z
Duration: 15 min 3 s
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Adverbs of degree

I think what really makes this scene is Nicolas Cage, and he's really badass.

Anyone who can escape from Satan is a bad ass by definition.

Hi, I'm Paul woozy and I'm a professor of explosives engineering.

And I'm Tassel Obara, special effects supervisor in Los Angeles, and we're back for part two.

We're gonna look even Maur explosions from TV and films from a scientific perspective and a filmmaking perspective, let's look at some clips.

I just want to make there isn't really any explosive that that smaller piece would have that much of an effect on people.

This only a certain amount of chemical energy in an explosive for just a few grams.

There's no way you could get that sort of effect.

You mashing together way do have a lot of two component explosives that we actually use.

In this case, it's probable the gum would be explosive, and then the two colors would be two ingredients, and when those were mixed together, that would cause an extra thermic reaction, which means puts up a lot of heat.

The explosive would then be heat sensitive on wood.

They throw enough money at it and got the technical expertise.

They could probably come up with something but noticed.

Wait, just fly out of the scene because it was a huge air blast that blows him out.

But look, it doesn't even affect the tabletops on linen on it.

So that stuff's really good spectral in from a filmmaking standpoint, well constructed scene with Ethan Hunt.

We know he's got stuff up asleep, and we just want to see what it is he's gonna pull out, and sure enough, it pays off and it pays off huge.

The breaking glass is created by a tempered glass, which is the type of glass you'd see in the side window of a car in the United States.

It has a property being very, very strong until any part of it is broken, in which case the whole thing shatters into tiny little pieces, which makes it very convenient for effect Use.

Similarly, when the waiter goes through the glass, you'll notice that the glass is broken before he hits it.

Tempered glass unbroken is very, very strong, and he or she would bounce off it with injuries.

If, on the other hand, the glass is broken, even if it's fractions of a second before they hit it, the glass itself no longer has any structure to it, and they just fly through the fragments and the reverse shot.

Where you see Tom Cruise running away was probably done with dump tanks and likely in anticipation of several takes, they would have went down the whole plaza to avoid a possible continuity problem.

Any time you're going to cause something to get wet, something get dirty.

If you could dust down or wet down the whole area ahead of time, it's to your advantage, because then you could do multiple takes without having a very time consuming reset.

Whether or not you want to keep that in your pocket, that would be questionable.

Technically, you could make it fairly safe, but this is explosive we're talking about.

It doesn't matter how safe the explosive is because the booms, the boom and that's the dangerous part when it blows up, drive angry.

Now this Nicolas cage has the shotgun from hell here.

Now the question is, would a shotgun actually set that off?

I think the answer to that is yet can do if you close enough.

And if you've ever shot a a weapon at night, oftentimes you'll see a big flame come out.

You can even get flamethrower charges the shot.

So in reality, a shotgun could set gas on fire.

But when that trail hits the car, in reality what it looked like his one big wolf.

But in this scene, what we see appears to be multiple charges firing.

What you're seeing here is a very clever combination of several different shots and materials to create the effect that we want.

We see the close up of the shotgun strike on the trail of flammable liquid.

And that's a surprisingly difficult effect to d'oh just because it's very susceptible to a wind temperature, conditions and everything else to make it reliable.

And they needed to be reliable because they've got a camera movement on it.

So my guess is that they used some sort of spark charge off to the side so as to create the appearance that the shock and blast was igniting it.

They also seem to have used a different flammable liquid.

There's very little smoke, but you look at the wider shot.

We put the explosives in the vehicle, we get Nicolas Cage in the front and we pour out some gasoline to make the trail manually.

And while it's burning there, we set it up so that it doesn't burn into the charges that we've set because because we don't want them damaged.

They're triggered electrically and they're triggered in sequence so that first you see the small explosion out to the side.

Just when you think you've seen the full effect, suddenly you get the larger explosion in the background, which is great because you get something that builds visually and thus helps to sell the idea that he is one hell of a badass, so you can see how the smoke looks white, which is a signature of black power.

If you don't mind that white smoke, it looks great.

But if you do, then you probably want to use something other than black, possibly.

Ah, high explosive, which is mainly force and very little visual impact.

That way you could add your own smoke if you needed to.

Chemically or or mechanically current locker.

Oh, what we're seeing is an ordinance disposal team in a war scenario trying to dispose of an improvised explosive device.

They've decided they're going to blow it in place.

It's gonna be too dang gris to defuse or take out.

So they're gonna put another explosive charge on it too sympathetically.

That'll give us about £20 of bang total in the scene.

They say they've got £20 of bang their bangs A military term for explosives.

I noticed in the scene they're using civilian detonators, rather military detonators and I think the reason for this is that, you know, civilian dead night is like a hell of a lot more sexy than military ones.

Military explosives and military detonators generally olive drab od green.

Obviously, the military want camouflage things they don't want to obvious.

But in the film industry, you want something that pops for the eye.

That ordinary viewer will not know or appreciate.

The difference, though in this film they were trying to be spot on accurate in a lot of places.

So it does surprise me a little bit that they would would make that change.

Yeah, that looks that suit looks like the real thing.