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WILL: I've got a confession to make.
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I've never swum in a lake.
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00:00:12,929 --> 00:00:14,597
Never climbed a mountain.
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I was in a cave once.
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And I've never slept in a tent.
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But I'm beginning to think
that I might be missing something.
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So, I hooked up
with some modern-day explorers
8
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and I asked them to take me
to the ends of the Earth.
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And they said,
"Oh, we can go further than that."
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So, I'm 51, and I haven't done
any climbing whatsoever.
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And I've... I've always had
this secret fantasy
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that I wanted to summit Everest.
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-Wh...
-ERIK: I think we're the same age, almost.
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-Yeah, I'm, uh, September 25th.
-Yeah, no, I'm the 23rd.
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-Really?
-ERIK: Yeah.
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I have two days more of wisdom...
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-(LAUGHS)
-ERIK: ...in my life.
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WILL: What are my chances?
Or... Or is that like a young man's game?
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ERIK: No, no,
I think you could totally do it.
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I climbed Everest in 2001.
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I've gotten to climb
some beautiful mountains around the world.
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Been to the tallest mountain
on every continent, so...
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-Wow.
-Yeah.
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So, Jackson,
what's the name of the volcano?
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-Yasur.
-Yasur.
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-Yasur.
-Yasur, what does that mean?
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Someone bigger than us.
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It's like, um, God to us. So, it's bigger.
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So, we could be driving up there right now
to a volcano that's about to erupt.
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Right.
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(SUSPENSEFUL INSTRUMENTAL MUSIC PLAYING)
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So, we're actually gonna see boiling lava.
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-Yeah. Yeah.
-(CHUCKLES) Okay.
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(SUSPENSEFUL INSTRUMENTAL MUSIC CONTINUES)
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-ERIK: So, we are entering the ash fields?
-JACKSON: Yes.
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-So what? Vegetation is ending and...
-WILL: Yup.
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Right, we're getting into the ash?
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And I can hear it hitting the...
the windshield.
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ERIK: (CHUCKLES) Yeah.
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(ASH PATTERING)
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(THEME MUSIC PLAYING)
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WILL: This is scary.
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-I almost guarantee you're gonna survive.
-All right. (LAUGHS)
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(THEME MUSIC CONTINUES)
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WILL: Face-to-face with Mount Yasur.
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One of the most active volcanoes on Earth.
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But there's another reason why Erik thinks
I'll be more curious than scared.
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For one, the loudest sound ever recorded
was made by a volcano.
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But the loud sound that this volcano makes
is completely silent.
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Yeah, I know.
I don't understand it either.
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-ERIK: Did you just hear it?
-WILL: What?
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-Oh, no, there was a sound? Oh, damn it.
-ERIK: Yeah.
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ERIK: It echoed all the way
across up there.
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WILL: Erik is clearly listening.
But to what?
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(SUSPENSEFUL INSTRUMENTAL MUSIC CONTINUES)
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(RUMBLING)
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-ERIK: I'm officially sweating.
-WILL: Yeah. (CHUCKLES)
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WILL: You gotta be kidding me.
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-Right?
-ERIK: Yeah.
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-WILL: Is the edge okay, you think?
-ERIK: You tell me.
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That's crazy.
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-(VOLCANO RUMBLING)
-(LAVA WHOOSHES)
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WILL: Like looking into the gates of Hell.
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(LAVA WHOOSHES)
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(LAVA WHOOSHES, CRASHES)
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ERIK: You can hear the sound like
compressing, like hitting the walls...
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-WILL: Yeah.
-ERIK: ...down there. Like that!
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And it's kinda dark right now, right,
so it's...
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-Yeah.
-It's really lit up.
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WILL: Mm-hmm.
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You just kind of forget
that Erik is completely blind.
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I mean, this a man who climbed Everest.
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Who just hiked this volcano
without a single stumble.
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Who could even tell when the landscape
changed on the drive over.
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You... You just kind of forget
until he asks you to describe it to him.
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And it's what colors, orange?
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(LAVA CRASHING)
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It's like orange fireworks
shooting out of the ground.
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Uh-huh.
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(LAVA WHOOSHES)
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Do you have any emotion around...
not being able to see it?
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(VOLCANO RUMBLING)
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You know...
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when I went blind,
there was a time where you sort of regret
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and stuff like that, but...
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eventually, I think I learned
that you gotta sort of
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-say goodbye to that sighted life.
-Mm-hmm.
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And kinda take on a new life
and, you know,
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part of you dies, a part of you is reborn.
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(WHOOSHING)
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ERIK: Close your eyes. What do you hear?
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So, it's really similar to the ocean.
It's like waves crashing.
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-Comes in and goes out and...
-Yeah. Totally.
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(LAVA WHOOSHES, CRACKLES)
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ERIK: On Yasur,
there's such a spectrum of sound.
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There's this sound
that you can consciously hear.
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(LAVA WHOOSHES)
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ERIK: But I'm beginning to feel
this deeper sound.
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(RUMBLING)
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ERIK: You can't quite hear it.
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But you kind of just know
it's happening beneath you.
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(LAVA WHOOSHES)
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WILL: Erik and I aren't the only ones
looking for a hidden world of sound.
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There's a new breed of explorers
going to the ends of the Earth
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in an attempt
to discover the hidden worlds
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that sit beyond our senses.
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And some of them are taking it way,
way further than I would ever dare.
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(SUSPENSEFUL INSTRUMENTAL MUSIC PLAYING)
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WILL: Diva Amon studies the loudest animal
on the planet up close.
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But getting that near
requires some pretty special skills.
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(OMINOUS MUSIC PLAYING)
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DIVA: When you want to listen
to the sounds of the ocean,
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you have to free dive.
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Without any oxygen tanks,
it's so much quieter.
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And you don't exhale loads of bubbles,
which can scare the animals off.
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But you can only stay under
for as long as you can hold one breath.
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(WHALE CLICKS)
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DIVA: You don't normally think of clicks
as noisy.
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These ones,
they're louder than a chainsaw.
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(WHALE CLICKS LOUDLY)
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DIVA: That's what makes sperm whales
so interesting.
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(WHALES CLICK)
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(WHALES CLICKING)
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(WHALES CLICK)
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DIVA: It's their way of talking.
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And each click contains whole paragraphs
of information.
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(WHALES CLICK)
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DIVA: The clicks are so loud
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that they can carry across
hundreds of miles of ocean.
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00:11:17,343 --> 00:11:24,266
(WHALES CLICK)
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DIVA: They can also use their clicks
to echolocate...
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or to scan unknown objects.
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Like me.
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(WHALES CLICK)
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(WHALES CLICK)
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(BLAST)
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(BLAST)
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00:11:50,209 --> 00:11:51,210
(BLAST)
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DIVA: The noise is so powerful...
you can feel it pulse right through you.
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(BLAST)
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00:12:02,430 --> 00:12:06,308
FEMALE VOICE 1: Oh, my God,
it was amazing! I actually felt that!
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Could you feel them?
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-FEMALE VOICE 1: It's just...
-FEMALE VOICE 2: Crazy!
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(LAUGHTER)
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You don't just pick up sound with these.
You can also pick it up here.
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But if I'm going to experience sound
through my body,
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then I'm gonna have to get my body
closer to the sound.
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And that means stepping off the rim
of this volcano and going in.
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-JEFFREY: Hello.
-WILL: What's up, man?
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-I'm good. Real nice to meet you.
-All right, pleasure, man.
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Welcome to Yasur. Hey, Erik.
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-How're you doing?
-Awesome.
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-How are you?
-Cool.
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WILL: I think you're my...
my first volcanologist.
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JEFFREY: All right, cool.
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So, uh, have you ever been
to an active volcano before?
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WILL: I have not.
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Later on today,
we're gonna be descending into the crater
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00:12:57,651 --> 00:13:00,946
and then I'm... I'm gonna have you
help me install some sensors.
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00:13:05,284 --> 00:13:08,496
Thought maybe I would draw this, uh...
an illustration.
161
00:13:08,996 --> 00:13:12,291
-Using a stick in the ash.
-Mind using this pole, so that I can feel?
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00:13:12,374 --> 00:13:13,959
Um, yeah, love to do that...
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ERIK: All right, now I'll be able
to feel you.
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00:13:16,253 --> 00:13:18,923
Great, um, so, right, um...
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Well, this is a big crater,
and I'm drawing an arc of the crater rim,
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which is about a 300-meter
or a 1,000-foot diameter crater.
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00:13:30,100 --> 00:13:31,644
-ERIK: Mm-hmm.
-And what we'll be doing later
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00:13:31,811 --> 00:13:33,020
is descending
169
00:13:33,103 --> 00:13:37,608
via three independent rope systems
down into the crater,
170
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but not all the way down.
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So that we can get down
to an ideal location
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to install this apparatus.
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Uh, in fact, there's a bench
right down here, a flat area,
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00:13:49,954 --> 00:13:52,623
that I think is ideal
for the installation of the sensors.
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00:13:54,041 --> 00:13:56,877
So what... what are the, uh,
potential dangers?
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The thing I am most careful about
is making sure none of this ash
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00:14:01,006 --> 00:14:02,383
-gets blown into your eyes.
-WILL: Got it.
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00:14:02,466 --> 00:14:04,093
-It's little pieces of glass, right?
-WILL: Glass.
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00:14:04,510 --> 00:14:06,011
JEFFREY: Could really hurt your eyes.
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00:14:07,596 --> 00:14:10,474
Uh, so, goggles,
gas mask always at the ready.
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00:14:10,558 --> 00:14:11,767
WILL: Mm-hmm.
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00:14:14,478 --> 00:14:18,399
So, you're... you're...
you're a volcanologist by trade.
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00:14:18,607 --> 00:14:20,526
So you feel comfortable going in there,
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00:14:20,609 --> 00:14:22,903
and you'd take your students
or anything in there, right?
185
00:14:22,987 --> 00:14:25,114
Yeah, I would take you in there.
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00:14:27,449 --> 00:14:31,996
-I didn't answer that question.
-I know, yeah, right. (LAUGHS)
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00:14:32,204 --> 00:14:33,455
-JEFFREY: Yeah, but...
-WILL: Oh, man.
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00:14:34,665 --> 00:14:37,459
It sounds like the beginning
of a really bad joke.
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00:14:37,585 --> 00:14:38,836
It's like, okay, okay.
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00:14:38,961 --> 00:14:43,883
A rapper, a blind man, and a volcanologist
rappel down into a volcano.
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00:14:45,968 --> 00:14:50,389
But that's what we're gonna do.
Help Jeff record the mystery sounds
192
00:14:50,514 --> 00:14:52,016
this volcano is making.
193
00:14:52,141 --> 00:14:53,976
(ERIK SNAPPING FINGERS)
194
00:14:54,059 --> 00:14:55,561
WILL: I saw you a couple of times,
195
00:14:55,686 --> 00:14:57,771
and you'll, like, snap your fingers
or make a sound.
196
00:14:57,855 --> 00:15:00,524
ERIK: Yeah, snap your fingers,
I'll tap my cane,
197
00:15:00,608 --> 00:15:04,069
or sometimes, some people do a click.
(CLICKS TONGUE)
198
00:15:04,194 --> 00:15:06,071
It's like... really like,
the sharper the better.
199
00:15:06,155 --> 00:15:08,824
-WILL: And you're... you're echolocating?
-ERIK: Yeah.
200
00:15:09,450 --> 00:15:11,660
-WILL: And that works?
-ERIK: Yeah.
201
00:15:14,747 --> 00:15:19,627
I went totally blind about a week
before my freshman year in high school.
202
00:15:20,794 --> 00:15:23,672
I'd been diagnosed
with this incredibly rare eye disease
203
00:15:23,756 --> 00:15:26,258
called "juvenile retinoschisis"
as a young boy.
204
00:15:26,717 --> 00:15:28,802
And throughout elementary school
and middle school,
205
00:15:28,886 --> 00:15:30,804
I just watched the world shrink away.
206
00:15:32,973 --> 00:15:34,516
I struggled for a while,
207
00:15:34,600 --> 00:15:38,604
thinking without sight I would be stuck
on the sidelines of things.
208
00:15:39,229 --> 00:15:40,522
But the beauty of hearing is
209
00:15:40,606 --> 00:15:43,108
that you can hear things
that no eye could see.
210
00:15:43,609 --> 00:15:47,571
You can hear behind you, uh,
just as well as in front of you.
211
00:15:48,113 --> 00:15:52,034
So, yeah, there's all kinds of things
that I can see with my ears
212
00:15:52,743 --> 00:15:54,703
that you may not be able to see
with your eyes.
213
00:15:58,290 --> 00:16:00,751
-(VOLCANO RUMBLING)
-(WHOOSHING)
214
00:16:05,965 --> 00:16:07,341
WILL: These rocks, I'm assuming,
215
00:16:07,424 --> 00:16:10,803
were fired out of the volcano
and landed here.
216
00:16:10,886 --> 00:16:15,182
Yeah. This is a... This is
a beautiful example of a spatter bomb.
217
00:16:15,349 --> 00:16:18,018
-WILL: Jeez.
-And, you know why it's flat, right?
218
00:16:18,602 --> 00:16:20,104
-Flattish.
-Oh, because...
219
00:16:20,187 --> 00:16:22,022
So it was probably malleable.
220
00:16:22,147 --> 00:16:24,024
-Uh-huh.
-And then it hit and squashed down?
221
00:16:24,108 --> 00:16:26,235
-That's right.
-(WHOOSHING)
222
00:16:26,652 --> 00:16:29,238
ERIK: I'm guessing that's what's shooting
above us right now?
223
00:16:29,363 --> 00:16:31,824
JEFFREY: Yeah, so, this is not
a good place to be right now,
224
00:16:31,949 --> 00:16:33,534
-when there's elevated activity.
-Whoo!
225
00:16:33,701 --> 00:16:35,661
-That seemed like a big one.
-Wow!
226
00:16:35,869 --> 00:16:39,415
(WHOOSHING)
227
00:16:39,623 --> 00:16:43,419
Oh, whoa! Those spatter bombs are huge.
228
00:16:43,544 --> 00:16:45,879
-ERIK: How high did that one go?
-JEFFREY: Above our heads.
229
00:16:45,963 --> 00:16:47,089
WILL: Yeah. (CHUCKLES)
230
00:16:48,966 --> 00:16:51,885
JEFFREY: The very rare potential
for catastrophic harm
231
00:16:52,011 --> 00:16:56,265
is a direct ballistic that goes
from the vents straight shot up.
232
00:16:56,348 --> 00:16:58,308
-WILL: Yeah.
-And if you're leaning over the edge...
233
00:16:58,392 --> 00:17:00,019
Leaning over... Got it. Yeah, yeah, yeah.
234
00:17:00,102 --> 00:17:02,396
-...that would be potentially really bad.
-Absolutely.
235
00:17:02,479 --> 00:17:04,857
JEFFREY: You don't have any warning
when it's a straight shot.
236
00:17:09,528 --> 00:17:14,700
WILL: We were told that when you hear
the sound of the volcano
237
00:17:14,783 --> 00:17:19,496
to immediately turn
and take your eyes to the spatter bombs
238
00:17:20,039 --> 00:17:25,711
because they go up as lava
but they come down as massive rocks.
239
00:17:26,587 --> 00:17:30,674
And I'm thinking... Well, what about Erik?
240
00:17:35,137 --> 00:17:36,472
ERIK: With a sighted person,
241
00:17:37,306 --> 00:17:40,350
their visual cortex lights up
when they're seeing motion.
242
00:17:41,560 --> 00:17:44,938
For me, my visual cortex lights up
when I'm hearing motion.
243
00:17:45,397 --> 00:17:47,024
(LAVA CRASHES)
244
00:17:47,608 --> 00:17:51,028
ERIK: I create a picture in my mind.
So I still see,
245
00:17:51,945 --> 00:17:53,655
but it's all based on sound.
246
00:17:59,244 --> 00:18:00,245
(THUD)
247
00:18:01,371 --> 00:18:04,333
WILL: There is a way
that we can all see sound.
248
00:18:05,542 --> 00:18:07,920
But it's not for the fainthearted.
249
00:18:23,060 --> 00:18:24,144
(THUD)
250
00:18:24,228 --> 00:18:25,938
(WHITE NOISE)
251
00:18:26,105 --> 00:18:28,398
-(CHUCKLES)
-(SPEAKING SPANISH)
252
00:18:28,482 --> 00:18:31,318
-(BIRD CHIRPS)
-(DOGS BARKING)
253
00:18:32,528 --> 00:18:35,447
-Vámonos.
-(SPEAKING SPANISH)
254
00:18:40,035 --> 00:18:42,496
FEMALE VOICE: (ON TV)
Both planets became molten on impact.
255
00:18:42,579 --> 00:18:43,580
(SPEAKING SPANISH)
256
00:18:43,664 --> 00:18:45,749
FEMALE VOICE: (ON TV)
Debris thrown out into space...
257
00:18:45,874 --> 00:18:46,917
(SPEAKING SPANISH)
258
00:18:47,751 --> 00:18:51,004
(SPEAKING SPANISH)
259
00:18:52,381 --> 00:18:53,382
Sí, adios.
260
00:19:00,097 --> 00:19:05,060
-(CARNIVAL MUSIC PLAYING)
-(INDISTINCT CHATTER)
261
00:19:08,188 --> 00:19:12,442
WILL: Every February,
the townspeople of San Juan de la Vega
262
00:19:12,734 --> 00:19:17,656
take part in what has to be
one of the world's most bizarre festivals.
263
00:19:20,325 --> 00:19:23,996
(DRUMBEATS)
264
00:19:26,248 --> 00:19:28,625
(SPEAKING SPANISH)
265
00:19:29,168 --> 00:19:30,669
(BLAST)
266
00:19:32,546 --> 00:19:34,673
WILL: It might seem crazy dangerous,
267
00:19:35,174 --> 00:19:36,300
and it is.
268
00:19:36,383 --> 00:19:37,801
(CARNIVAL MUSIC PLAYING)
269
00:19:38,218 --> 00:19:39,219
(BLAST)
270
00:19:40,220 --> 00:19:41,263
(BLAST)
271
00:19:44,641 --> 00:19:45,684
(BLAST)
272
00:19:45,767 --> 00:19:48,770
(SINGING IN SPANISH)
273
00:19:48,896 --> 00:19:49,897
(BLAST)
274
00:19:50,856 --> 00:19:55,485
WILL: These violent explosions demonstrate
something crucial about sound.
275
00:19:55,569 --> 00:19:56,612
(BLAST)
276
00:20:00,824 --> 00:20:03,911
(BLAST)
277
00:20:04,119 --> 00:20:07,039
WILL: Something that explains
why you can feel it
278
00:20:07,164 --> 00:20:08,832
even if you can't hear it.
279
00:20:09,833 --> 00:20:11,251
It can move stuff.
280
00:20:18,217 --> 00:20:21,803
(BLAST REVERBERATES)
281
00:20:21,887 --> 00:20:24,681
WILL: Sound doesn't just travel
through the air.
282
00:20:24,806 --> 00:20:25,933
(BLAST)
283
00:20:26,058 --> 00:20:28,560
WILL: It causes movement of the air.
284
00:20:32,272 --> 00:20:36,318
These invisible forces can even burst
an eardrum.
285
00:20:39,529 --> 00:20:42,491
Because sound is movement.
286
00:20:45,202 --> 00:20:48,205
That is what Erik is feeling
on our volcano.
287
00:20:49,331 --> 00:20:54,127
And down in the crater, it's just possible
that I'll feel it too.
288
00:20:56,129 --> 00:21:01,677
Uh, and we need the helmet
because the volcano spits rocks and stuff,
289
00:21:02,135 --> 00:21:04,972
and the rocks go up in the air,
and then they come down.
290
00:21:05,389 --> 00:21:07,307
And they hit you in your head.
291
00:21:08,433 --> 00:21:11,603
-As if this helmet's gonna do something...
-(JEFFREY LAUGHS)
292
00:21:11,687 --> 00:21:13,313
WILL: ...for one of these big-ass rocks.
293
00:21:23,156 --> 00:21:25,409
JEFFREY: You know, you might ask
why we're going inside.
294
00:21:25,742 --> 00:21:29,371
The answer is that we're getting
the highest quality signals possible
295
00:21:29,746 --> 00:21:32,833
if we go in the crater
as opposed to up on the rim here.
296
00:21:34,376 --> 00:21:35,877
For real, that's hot.
297
00:21:37,004 --> 00:21:38,297
(RUMBLING)
298
00:21:38,547 --> 00:21:40,841
WILL: Now that we're actually about
to go down there,
299
00:21:41,091 --> 00:21:45,178
I can't stop thinking,
a few days ago without warning,
300
00:21:45,470 --> 00:21:48,932
a volcano erupted in New Zealand
killing 22 people.
301
00:21:49,599 --> 00:21:54,813
Now, does that volcano erupting mean
anything about this one?
302
00:21:57,316 --> 00:21:59,943
-JEFFREY: Any last words?
-Yeah, this is my action hero pose.
303
00:22:00,068 --> 00:22:01,153
-(LAUGHING)
-JEFFREY: Yeah.
304
00:22:01,236 --> 00:22:02,988
-JEFFREY: Erik, you ready?
-ERIK: Yes, I'm in.
305
00:22:03,071 --> 00:22:04,323
-JEFFREY: Will, ready?
-Yes, sir.
306
00:22:04,948 --> 00:22:06,575
I may have lost my mind.
307
00:22:07,326 --> 00:22:14,249
There's crazy heat, toxic gas, glass, ash.
Hell, even the smoke is out to get you.
308
00:22:15,459 --> 00:22:16,585
ERIK: All right, on rappel.
309
00:22:16,668 --> 00:22:18,754
-JEFFERY: All right, on rappel, guys.
-WILL: Let's do it.
310
00:22:33,143 --> 00:22:34,561
JEFFREY: You've never done this before,
huh?
311
00:22:34,686 --> 00:22:35,812
WILL: Not for real.
312
00:22:35,937 --> 00:22:38,482
-WILL: Oh, wow. Yo.
-JEFFREY: This is for real.
313
00:22:39,816 --> 00:22:45,113
(SUSPENSEFUL INSTRUMENTAL MUSIC PLAYING)
314
00:22:49,409 --> 00:22:50,952
(WHOOSHING)
315
00:22:51,119 --> 00:22:52,329
WILL: Whoa!
316
00:22:52,496 --> 00:22:54,748
Hey, that's coming up over the rim.
317
00:23:02,381 --> 00:23:03,382
JEFFREY: Yeah.
318
00:23:05,926 --> 00:23:07,677
WILL: Let's do the science quick.
319
00:23:10,180 --> 00:23:12,349
-(VOLCANO RUMBLING)
-ERIK: Oh, my God!
320
00:23:12,432 --> 00:23:14,851
(RUMBLING)
321
00:23:14,976 --> 00:23:17,354
WILL: Oh, that's immense.
322
00:23:18,480 --> 00:23:20,690
Oh, my God! All right,
that's the biggest one yet.
323
00:23:21,775 --> 00:23:23,860
-You feel that?
-ERIK: Hell, yeah.
324
00:23:26,947 --> 00:23:29,866
JEFFREY: Guys, um, let's get
this array out as quickly as possible.
325
00:23:30,492 --> 00:23:32,577
If we hear a big explosion,
eyes towards the crater...
326
00:23:32,661 --> 00:23:33,578
Yeah.
327
00:23:33,662 --> 00:23:35,330
...and let's walk that out
as carefully as you can.
328
00:23:47,217 --> 00:23:48,760
(WIND HOWLING)
329
00:23:56,435 --> 00:24:01,148
(RUMBLING)
330
00:24:02,566 --> 00:24:04,234
JEFFREY: Will,
did you feel that through your body?
331
00:24:04,317 --> 00:24:06,236
-Yeah, that's crazy.
-JEFFREY: Yeah.
332
00:24:06,361 --> 00:24:07,446
It's like a, uh...
333
00:24:07,821 --> 00:24:11,616
-I felt the vibration before the sound.
-Right, it's like a shock wave
334
00:24:11,700 --> 00:24:14,077
-that hits you before you hear it.
-A shock wave before you... Yeah.
335
00:24:16,204 --> 00:24:18,540
ERIK: Will, are you starting to understand
what I'm feeling?
336
00:24:18,665 --> 00:24:22,169
-WILL: I get it.
-(VOLCANO RUMBLES)
337
00:24:24,296 --> 00:24:25,797
The last one that went,
338
00:24:26,089 --> 00:24:29,676
my eardrum wobbled,
but I didn't hear a sound.
339
00:24:29,759 --> 00:24:32,137
-But I felt the pressure of the wobble.
-JEFFREY: Oh, yeah.
340
00:24:32,345 --> 00:24:35,015
Yeah, I feel that wobble
like all the time. I don't know.
341
00:24:35,682 --> 00:24:38,727
-Do... Do you feel that wobble right now?
-Yeah. Yeah, I feel it right now.
342
00:24:39,352 --> 00:24:42,439
Erik, I can't hear that wobble
that you're discussing right now.
343
00:24:42,606 --> 00:24:43,940
I'm just not sensitive to it.
344
00:24:44,024 --> 00:24:45,275
-But I believe you.
-Yeah.
345
00:24:45,358 --> 00:24:47,152
Because this is
what the device is telling us.
346
00:24:47,319 --> 00:24:48,904
-ERIK: Right.
-JEFFREY: And when we turn it up...
347
00:24:49,070 --> 00:24:49,988
(DEVICE RUMBLES)
348
00:24:50,238 --> 00:24:53,200
JEFFREY: ...this is generating
audible tones from that wobble
349
00:24:53,283 --> 00:24:54,326
that you're perceiving.
350
00:24:54,659 --> 00:24:57,204
(RUMBLES)
351
00:24:57,704 --> 00:25:01,708
If you could hear this, it would be
like you were next to a jackhammer.
352
00:25:01,833 --> 00:25:03,460
-Right, right.
-JEFFREY: And you would not be able
353
00:25:03,543 --> 00:25:04,753
to have a conversation.
354
00:25:05,253 --> 00:25:07,714
-What you're hearing is infrasound.
-Right.
355
00:25:07,881 --> 00:25:10,759
(VOLCANO RUMBLES)
356
00:25:10,926 --> 00:25:16,473
WILL: Talk about low.
Infrasound is bass and then some.
357
00:25:17,057 --> 00:25:20,101
So, when you feel it,
you better pay attention.
358
00:25:20,268 --> 00:25:23,396
(VOLCANO RUMBLES)
359
00:25:23,605 --> 00:25:27,359
Huh? What did you say?
Oh, we need to leave?
360
00:25:27,567 --> 00:25:31,112
-Okay, I heard you. I heard you.
-Infrasound just told you that?
361
00:25:31,196 --> 00:25:33,406
Infrasound said
we need to get the hell out of here.
362
00:25:33,532 --> 00:25:35,033
(LAUGHS)
363
00:25:47,128 --> 00:25:48,338
Rock! Rock! Rock! Rock!
364
00:25:58,223 --> 00:25:59,307
You all right, Erik?
365
00:26:01,977 --> 00:26:02,978
ERIK: Yeah.
366
00:26:16,241 --> 00:26:17,742
WILL: That's fantastic.
367
00:26:20,203 --> 00:26:25,083
(RUMBLES)
368
00:26:25,959 --> 00:26:28,587
WILL: Decoding the infrasound
could help predict
369
00:26:28,670 --> 00:26:31,339
when volcanoes like Yasur will erupt.
370
00:26:33,174 --> 00:26:36,386
But there might be other messages
coming from down there.
371
00:26:38,138 --> 00:26:41,766
Sounds that could tell us
something crucial about our world.
372
00:26:43,602 --> 00:26:46,313
(CRACKING)
373
00:26:48,982 --> 00:26:52,360
(CRACKING)
374
00:26:52,485 --> 00:26:56,281
-(CRACKING)
-(RUMBLING)
375
00:26:58,033 --> 00:27:00,535
(CRACKING)
376
00:27:01,536 --> 00:27:05,332
(SUSPENSEFUL INSTRUMENTAL MUSIC PLAYING)
377
00:27:13,840 --> 00:27:18,053
(FIRE CRACKLING)
378
00:27:34,653 --> 00:27:38,740
WILL: Out on thin ice,
these skaters only stay safe
379
00:27:39,491 --> 00:27:42,285
by listening really carefully.
380
00:27:50,585 --> 00:27:51,836
(CRACK)
381
00:27:52,212 --> 00:27:54,547
(LOW RUMBLING)
382
00:27:57,884 --> 00:28:02,472
WILL: Extremely rarely, ice can behave
a bit like the Earth's crust,
383
00:28:03,473 --> 00:28:06,142
amplifying even the slightest noise
384
00:28:08,103 --> 00:28:11,314
into something weird and unexpected.
385
00:28:14,192 --> 00:28:18,363
And just like the volcano
might be signaling it's about to explode,
386
00:28:18,613 --> 00:28:22,409
the sounds from a frozen lake
can warn us how weak the ice is.
387
00:28:23,660 --> 00:28:26,454
Higher sounds mean thinner ice.
388
00:28:45,390 --> 00:28:47,600
WILL: It doesn't take much
to make the sound,
389
00:28:47,934 --> 00:28:50,603
just the tiniest bit of pressure
can do it.
390
00:29:03,491 --> 00:29:08,955
Sound travels faster
and much further through solid surfaces.
391
00:29:21,676 --> 00:29:24,179
So, now you know why in old cowboy movies,
392
00:29:24,345 --> 00:29:28,183
folks put their ear to the ground
when they wanted to hear distant riders.
393
00:29:30,143 --> 00:29:32,812
That's the idea
that one group of explorers
394
00:29:32,937 --> 00:29:34,856
are taking a little bit further.
395
00:29:36,816 --> 00:29:41,529
But first, they need to find
somewhere with no sound at all.
396
00:29:44,699 --> 00:29:46,534
And it ain't easy to get to.
397
00:29:47,702 --> 00:29:51,498
(OMINOUS MUSIC PLAYING)
398
00:30:09,057 --> 00:30:12,352
(OMINOUS MUSIC CONTINUES)
399
00:30:35,917 --> 00:30:38,253
We are going to try to get to a place
400
00:30:38,419 --> 00:30:41,089
where we get the absolute silence
for human beings.
401
00:30:41,172 --> 00:30:44,592
Ah, okay, cool. I'm excited.
402
00:31:03,778 --> 00:31:04,821
(PANTS)
403
00:31:19,544 --> 00:31:20,545
MICHEL: Okay.
404
00:31:23,756 --> 00:31:26,217
All right. Down we go.
405
00:31:44,652 --> 00:31:47,405
(GRUNTS)
406
00:31:58,708 --> 00:32:02,086
(GRUNTS)
407
00:32:04,422 --> 00:32:06,507
-Get this.
-Thank you so much.
408
00:32:06,799 --> 00:32:09,969
-Do you want some more? I can fill.
-Ah, sure, thank you.
409
00:32:11,721 --> 00:32:16,935
(HIGH-PITCHED BEEPING)
410
00:32:22,523 --> 00:32:23,816
(HIGH-PITCHED BEEPING STOPS)
411
00:32:30,949 --> 00:32:34,827
The phenomenon that we experience here
is that our brain doesn't want us
412
00:32:34,911 --> 00:32:37,622
to experience the silence.
But if you pay attention,
413
00:32:37,789 --> 00:32:40,583
if we... if we keep silence,
then we still hear
414
00:32:40,833 --> 00:32:42,835
the, uh, water dropping.
415
00:32:43,086 --> 00:32:44,921
-Okay.
-Just... Just try it.
416
00:32:48,132 --> 00:32:49,258
(WATER DRIPPING)
417
00:32:49,717 --> 00:32:52,345
MICHEL: This is probably the last sound
that we're gonna hear now.
418
00:32:52,428 --> 00:32:54,055
-EXPLORER: Uh-huh.
-Until we get to the place
419
00:32:54,138 --> 00:32:56,474
where we hope to find the virtual silence.
420
00:32:56,599 --> 00:32:58,476
EXPLORER: Okay. So, we keep going now?
421
00:32:58,685 --> 00:33:00,645
-Just deeper. All right.
-Yes. Yeah. Going deeper.
422
00:33:05,316 --> 00:33:08,236
(PANTS)
423
00:33:13,950 --> 00:33:19,414
(SUSPENSEFUL INSTRUMENTAL MUSIC PLAYING)
424
00:33:32,760 --> 00:33:34,804
It looks like we, uh... we found it.
425
00:33:35,596 --> 00:33:36,639
Wow!
426
00:33:37,265 --> 00:33:39,726
Hey, guys, let's... let's try to, uh,
be quiet for a minute
427
00:33:39,851 --> 00:33:42,020
to see it's really something
that we've perceived the...
428
00:33:42,395 --> 00:33:43,604
these quests of the silence,
429
00:33:43,688 --> 00:33:45,773
and then we can maybe deploy
the technology.
430
00:33:57,201 --> 00:33:58,995
There's nothing. There's nothing.
431
00:33:59,245 --> 00:34:01,664
I think that's the first time in my life
I've ever heard...
432
00:34:01,831 --> 00:34:03,124
-MICHEL: Nothing.
-Nothing.
433
00:34:03,374 --> 00:34:04,375
MICHEL: Naturally nothing.
434
00:34:04,542 --> 00:34:05,585
-Yeah.
-Yeah.
435
00:34:05,710 --> 00:34:07,420
-Wow!
-Yeah, nice and pretty amazing.
436
00:34:07,545 --> 00:34:09,714
-It's heavy.
-MICHEL: It's heavy, yeah, totally.
437
00:34:09,797 --> 00:34:11,716
It's like... It's a...
It's a heavy sensation.
438
00:34:11,799 --> 00:34:15,845
Yeah. So,
this instrument what they will do...
439
00:34:17,096 --> 00:34:20,099
is to record whatever we cannot hear now.
440
00:34:39,368 --> 00:34:42,455
WILL: If you want to hear
something really quiet,
441
00:34:43,414 --> 00:34:47,460
quieter than your breathing,
quieter than your heart beating,
442
00:34:48,878 --> 00:34:51,130
then you either have to stop those things
443
00:34:51,714 --> 00:34:54,509
or get the hell out of the way.
444
00:34:57,095 --> 00:35:00,556
That way, you might just have a chance
of hearing something
445
00:35:01,057 --> 00:35:03,184
no one's ever heard before.
446
00:35:03,351 --> 00:35:07,271
(RUMBLING)
447
00:35:17,824 --> 00:35:20,743
WILL:
Sounds from deep within the mountains.
448
00:35:38,261 --> 00:35:40,429
It's actually thought to be the sound
449
00:35:40,638 --> 00:35:44,976
of the moon's gravity
dragging the mountains.
450
00:35:45,768 --> 00:35:50,064
(LOUD RUMBLING)
451
00:35:58,906 --> 00:36:02,952
The moon pulls on the sea to create tides.
452
00:36:03,661 --> 00:36:06,956
It turns out,
it does the same to the land.
453
00:36:08,374 --> 00:36:10,793
And it's not just the mountains
that are moving.
454
00:36:14,422 --> 00:36:19,302
Imagine you could peel away
the sounds of New York City, one by one.
455
00:36:19,427 --> 00:36:21,220
(SIRENS WAILING)
456
00:36:25,600 --> 00:36:28,227
WILL: Eventually, if you get quiet enough,
457
00:36:28,394 --> 00:36:32,273
you just might find
those same deep, primal rhythms
458
00:36:32,356 --> 00:36:34,233
recorded in the Dolomites.
459
00:36:34,358 --> 00:36:36,402
(RUMBLING)
460
00:36:40,406 --> 00:36:43,159
WILL: Because the moon moves cities too.
461
00:36:45,828 --> 00:36:49,999
New York rises and falls up to 14 inches
462
00:36:51,083 --> 00:36:53,711
twice a day, every day.
463
00:36:56,214 --> 00:36:59,967
An invisible wave of concrete and steel.
464
00:37:03,554 --> 00:37:06,307
They're called Earth tides.
465
00:37:14,065 --> 00:37:16,400
(CHILDREN CHATTERING IN DISTANCE)
466
00:37:16,484 --> 00:37:18,319
WILL: Coming down from the volcano,
467
00:37:18,527 --> 00:37:21,364
Jackson takes us to his village
to celebrate.
468
00:37:21,739 --> 00:37:25,243
And I realize I am listening
to everything differently.
469
00:37:27,703 --> 00:37:33,209
(FIRE CRACKLING)
470
00:37:33,626 --> 00:37:36,545
(INSECTS CHIRPING)
471
00:37:38,130 --> 00:37:40,716
WILL: The layers of sound.
472
00:37:41,092 --> 00:37:44,178
(CHICKEN CLUCKING)
473
00:37:46,347 --> 00:37:48,432
WILL: I could feel my hearing turn up.
474
00:37:49,350 --> 00:37:52,311
(PAN FLUTE PLAYING)
475
00:37:53,396 --> 00:37:56,357
(INDISTINCT CHATTER)
476
00:38:02,363 --> 00:38:05,741
I was tuned into a...
a whole world of sound
477
00:38:06,075 --> 00:38:09,704
that even as a musician
had been hidden from me.
478
00:38:12,581 --> 00:38:15,584
ERIK: I feel pretty proud
that I was able to give Will
479
00:38:15,668 --> 00:38:18,212
a little glimpse into my experience.
480
00:38:18,879 --> 00:38:22,550
To not just be wowed
by all the visual things in the world,
481
00:38:22,675 --> 00:38:26,929
but to actually be able to hear subtleties
and beautiful things and violent things.
482
00:38:27,722 --> 00:38:30,099
Sight is just a sliver of reality.
483
00:38:30,516 --> 00:38:31,892
And so, in a way,
484
00:38:32,143 --> 00:38:36,605
maybe I'm helping him to really experience
the full spectrum of living.
485
00:38:46,073 --> 00:38:47,074
WILL: That's beautiful.
486
00:38:57,251 --> 00:38:58,377
WILL: He's singing up there.
487
00:39:05,009 --> 00:39:08,179
(VILLAGERS SINGING)
488
00:39:08,262 --> 00:39:11,640
WILL: This dance symbolizes
the villagers' relationship
489
00:39:11,724 --> 00:39:13,726
with the sounds of the volcano,
490
00:39:14,352 --> 00:39:17,772
like harmonizing
with the primal forces of nature.
491
00:39:18,105 --> 00:39:19,440
Whoo!
492
00:39:19,648 --> 00:39:22,485
So, all of these dances and everything
are about the volcano?
493
00:39:22,985 --> 00:39:28,407
Yes. Exactly how the... the lava
is melting inside, like, boiling...
494
00:39:28,657 --> 00:39:31,452
So that's why...
Sometimes you can hear it like this.
495
00:39:32,703 --> 00:39:36,749
-(FEET POUNDING)
-(VILLAGERS SINGING)
496
00:39:40,669 --> 00:39:44,131
WILL: The dance mirrors
the sounds of the volcano.
497
00:39:48,094 --> 00:39:51,180
-The claps are the explosions.
-(RUMBLING)
498
00:39:53,641 --> 00:39:55,518
WILL: The stomps are infrasound.
499
00:39:57,728 --> 00:40:01,440
The whole thing celebrates the sounds
that pass through their bodies
500
00:40:01,607 --> 00:40:02,733
every single day.
501
00:40:03,442 --> 00:40:08,948
-(FEET POUNDING)
-(VILLAGERS SINGING)
502
00:40:11,742 --> 00:40:12,743
WILL: Wow!
503
00:40:15,162 --> 00:40:16,872
You want me to go? All right, let's go.
504
00:40:18,124 --> 00:40:20,209
Everybody up. Let's get it.
505
00:40:23,462 --> 00:40:28,592
WILL: Yo, that's crazy.
It's like the ground is a bass drum.
506
00:40:28,759 --> 00:40:32,763
(VILLAGERS SINGING)
507
00:40:37,393 --> 00:40:39,270
WILL: There you go, man. That's it, Erik.
508
00:40:39,478 --> 00:40:45,067
(SINGING CONTINUES)
509
00:41:05,713 --> 00:41:08,382
WILL:
Everything on Earth is making a sound.
510
00:41:09,216 --> 00:41:10,885
Each and every thing.
511
00:41:13,971 --> 00:41:16,807
It's a song we might not always
be able to hear,
512
00:41:17,683 --> 00:41:20,394
but it's a song we can learn to feel.
513
00:41:22,855 --> 00:41:24,482
Tune in to the Earth.
514
00:41:25,941 --> 00:41:27,151
Pick up its hidden rhythm.
515
00:41:30,488 --> 00:41:32,239
And learn to dance along.
516
00:41:32,448 --> 00:41:34,033
(CHEERING)
517
00:41:34,658 --> 00:41:35,659
WILL: Yes!
518
00:41:37,745 --> 00:41:41,999
I've changed how I listen,
how to really listen,
519
00:41:42,917 --> 00:41:44,293
but that's just the beginning.
520
00:41:47,421 --> 00:41:49,798
There are more hidden worlds to explore.
521
00:41:54,428 --> 00:41:58,307
Alien worlds where color exists
in total darkness.
522
00:41:58,474 --> 00:41:59,808
Wow, look at that.
523
00:42:02,811 --> 00:42:07,191
Where strange things start to happen
when millions of animals come together.
524
00:42:13,572 --> 00:42:18,869
Where stillness doesn't exist
because every single thing is moving.
525
00:42:21,747 --> 00:42:24,542
These are the hidden worlds
that drive our planet.
526
00:42:27,419 --> 00:42:31,048
The new frontiers that challenge
everything we thought we knew.
527
00:42:33,717 --> 00:42:35,177
(CHEERING)
528
00:42:37,680 --> 00:42:40,891
(THEME MUSIC PLAYING)