An Explosion in Slow Motion Thermal Vision!!

An Explosion in Slow Motion Thermal Vision!!

– Here we go, fire in the hole
on zero! Three! Two! One! Zero! – We are about to do our big
explosion, which is kind of
the crown, on this episode. And it’s going to be nuts.
We’re actually going to do
the explosion three times. Twice, big, normal,
real-life explosions. Then a third Hollywood one,
where we actually throw
diesel onto the explosion, to give us that Hollywood
fireball. That movie explosion
that you always see. (explosion) So, we have a lot
of really wonderful,
brilliant people working. Like, that gentleman over
there is making the explosions. – Hi, my name is
JD Streett, and I’m a
licensed pyrotechnician in the state of California,
and federally. We’re showing a series
of explosions, some of
them are movie explosions, which are safer and prettier.
And then we’ll compare it
with some high-order explosions that are more for
industrial use, and a
little more energetic. The high-order explosion
is a binary. It means we
manufacture it in two parts. And in this case,
we have a liquid, and
we have a dry material. We mix it together, and
it kind of makes a paste. (explosion) – So, the big difference
between a movie explosion
and a real-life explosion is that a real-life explosion
is meant to cause damage,
to be devastating. And a movie explosion is
meant to look cool on camera. Oh, my God. It looks like
it’s going through water. Like, it’s just moving
all the… oh my gosh,
it’s dispersing so much air. The shockwave, it looks like
it’s going through water. When
you see an underwater explosion, you can actually see it move,
is what it looks like. It looks
liquid. Which makes sense. It was awesome, sorry. And how we’re capturing it?
Great question. We’re using
an IX slow-motion camera, a Phantom slow-motion camera, two Flir thermal cameras,
one that can shoot at
1000 frames per second, that’s going to be very good
for the pig skin experiment. And then we just have basically
every other camera that we have,
filming it as well. So, I’m really, really excited.
And it’s going to be cool. And safe. Very safe,
’cause safety is key. – That was 10,000 frames
a second, at 2X shutter. So it’s the equivalent
shutter speed of 20,000. My name’s Matt Rece,
and I’m with IX Cameras, and I’m out here as a
high-speed camera tech,
helping out for the shoot. So, we were shooting at
10,000 frames a second, and we had the shutter
time at the equivalent
of 20,000 frames a second, so that we would minimize
the motion blur
on full bearing. Your normal cellphone
camera, or regular video
camera that you use, you’re usually shooting
at 30 frames a second. And you’re playing it back
at 30 frames a second. On a high-speed camera,
we increase the frame-rate
that we capture it at. So, for instance, if
we get 300 frames a second, and then we played it back
at 30 frames a second, it’s ten times slower
than what you would
normally have. You can see the organs
turning inside there, it
really came out pretty good. – Got that little puff of
smoke off there, yeah, man. That’s going to look beautiful
when they cut that together. – Exactly. (explosion) – We’re using
high-speed cameras, but we’re also using
high-speed cameras that
capture thermal imagery, too. So you can really break
down the explosion by different levels of
heat that are coming out, and really explore what’s going
on inside that explosion, in a
way that I’ve never seen before. – Normal camera looks at visible
light. Our cameras are actually
looking at infrared light. So, these specific
cameras are looking at
the mid-wave IR spectrum. What it’s doing is
it’s actually looking at the reflection and
radiation of heat. So, the camera right here is a
high-speed camera, it records
at 1000 frames per second. We filmed something yesterday
where the whole explosion went off in like half a second,
but we were able to slow it down
at 1000 frames per second, and look at where every little
particle that came out of the
barrel of that ballistics tube, where it went.
That’s pretty cool. – It’ll look great.
You happy with it?
– Yeah. – For us, the challenge of
the show is to get as much
information as possible, into the body of the show,
and still do it in a way
that’s entertaining to watch. And I really think Jake and the
production team have achieved
something incredibly special. – Three! Two! One! (explosion) – That was awesome. (laughing) Oh, that was cool!

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  1. I love how the thumbnail has acted as accidental clickbait (yes ik it means behind the scenes but it's funny seeing all the armys coming in thinking it means they featured bts or smthn)

  2. The title is a rhyme
    In slow MOTION
    Thermal VISION😜😜😜😜😜😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎

  3. Slow motion does 2 things. It makes you realize that you often don't see everything
    that you've 'seen'. Also, time is experienced differently. Some insects live for 1 day.
    Do they experience in those 24 hours like I might experience a 80 yr life.
    'God Time' might be more like Planck Time. There have been more seconds of time
    since the 'Big Bang' than Plank Time units in the first second.

    Secret: If you slow down a video of a person talking, if they are a liar you will
    see odd physical 'tells'.

  4. What's happening at 01:38 It's hard to find the frame but it shows two red blobs near the peak of the mountain that's behind. Happens before the yellow flame front expands. Help to set playback at .25.

  5. Huh, I was expecting a K-Pop video but I got a lesson on pyrotechnics instead? Never thought I would ever make that connection though still interesting nonetheless lol XD

  6. LoL
    I'm not only the one who came here seeing BTS on the thumbnail

    I'm not alone…. And the comment section is flooded with BTS.. ARMYs..😍😍😍😍

  7. Vsauce Jake: An explosion in slo-mo thermal vision!
    Vsauce Kevin: *draws an explosion on his table*
    Vsauce Michael: But what is an explosion?

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