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The Unexplored Planet | Dave Gallo | TEDxKids@SMU


so I’m going to show you some stuff

today and we’ll start with something

that belongs to you the planet Earth

that doesn’t belong to anybody more than

it belongs to you and the thing about

Earth I’m an oceanographer so I study

oceans and guess what most of the earth

is ocean so all we did here is rotate

the world around take away the clouds

and guess what

all blue and average depth of the ocean

is about two and a half miles so it’s

not easy to explore there in fact today

I’d say we explored about maybe eight

percent of the oceans so if the oceans

earth is mostly ocean that’s like 70%

and we’ve only explored eight percent

that means we’re living at an unexplored

planet we don’t know what’s out there so

it’s not been done it’s not been

explored and the thing that most people

think about the oceans they think it’s a

big blue fishbowl right to stand at the

beach to look out there so they’re

sharks there’s whales if you watch Shark

Week there’s a octopuses and all sorts

of other fish but you know we live on

this planet 7 billion of us live on this

planet so we rely on the ocean so every

breath of fresh air that you take you

can count on the oceans for that half of

the oxygen we breathe comes out of the

sea almost all the rain you get whether

whether it rains or you get droughts all

that rain comes out of the ocean right

90 something percent of the rain comes

out of the ocean the food you eat

there’s about 2 billion people on earth

so 7 billion altogether two billion rely

on the ocean for food so the air you

breathe the food you eat the water you

drink belongs comes out of that ocean

controlled by the ocean and we haven’t

even explored it yet and the thing is

that what we know today is it’s changing

really quickly the chemistry of the

water is changing the temperature the

water is changing things aren’t what

they used to be in fact that’s one of

the big headlines is that this planet

that first picture I showed you was a

snapshot but this planet is constantly

changed mountains come and go oceans

come and go takes hundreds of millions

of years but they do you have

earthquakes volcanoes hurricanes floods

droughts constant change and so what

we’re trying to do is to you know

oceanography split up into two kinds of

directions

one is the exciting stuff what’s out

there at the bottom of the sea you know

and every time we go out we find

something new the other parts the

important part what’s it mean to us you

know what is it that we do that

influenced the ocean and you need to

know that because you’re going to have

to deal with that in the coming decades

ahead and then what does the ocean do

that impacts us you know storms and

things like that so we need to know

about our relationship with the sea but

it all starts with exploring and so if

you take away the water and look at the

bottom of the ocean guess what there’s a

huge mountain range that runs all the

way around the earth it’s just like the

seams on a baseball it’s you can see if

they’re in the middle of the oceans it’s

called the mid-ocean ridge 50,000 miles

long it’s huge it Dwarfs any mountain

range on earth there’s thousands of

peaks along that mountain mountain range

and valleys as well so we’ve got the

world’s greatest mountains the world’s

greatest mountain range the world’s

deepest and widest values are like five

to ten times wider and deeper than the

Grand Canyon

we’ve got underwater rivers we call them

currents when they’re at the surface

there’s a current out there but they’re

at the bottom of the ocean too and and

they’re like rivers they actually move

along the bottom of the ocean just like

river if your average every have a warm

drink whether it’s tea or coffee or

something like that and pour cold cream

in it you’ll see that the cream goes

right to the bottom of the cup that’s

what happens in the ocean the North Pole

South Pole really cold water to equate

our really warm water and when they mix

the cold water goes low and the warm

water stays high so we’re finding all

those things and the most important

thing is that every place we look in the

oceans even in the deepest darkest

places when we go exploring you know my

friend Jim Cameron the guy that did

Titanic Terminator and avatar he built a

submarine with his team and he actually

went to the very deepest part of the

ocean seven miles down by himself and

even in the deepest part of the ocean he

sees life so one of the messages we have

to is that life really does want to

happen on this planet so we find life

everywhere you know the theme here is

illuminate and when we go to the oceans

to explore we have to bring lights with

us there’s no sunlight in most of the

ocean that’s a completely dark world

there’s a close-up of that underwater

mountain range and

what’s neat about it is you see that it

looks like this snake shape in the

middle of the Atlantic Ocean but look at

Africa fits right into it

North America fits right into it South

America fits right into it all those

pieces used to be together so even the

face of the earth the continents are

constantly moving you know we used to be

together Africa and North America and

South America used to be together about

180 million years ago and then they

started moving apart and they’re still

moving apart and so eventually they’re

going to come back together again when

they move apart they make oceans when

they come together they make mountains

it’s an amazing planet so how do we

explore this underwater world and you’ve

got to have technology and that’s our

ship called the Atlantis 50 people go on

that boat they go out thousands of miles

in the middle of nowhere and that’s our

submarine Alvin Alvin helps three people

in a tiny little capsule it’s like it’s

like a miniature car but there’s three

people sitting inside there they will

you out on deck you’re really nervous

it’s hot it’s sweaty at the deck of the

ship everyone wonders should I go to the

bathroom one more time before I go to

the bottom and it’s a long day it’s like

10 hours and this crane picks you up off

the back of the ship puts you over the

side and the minute you hit the water

because you know the surface ship is

noisy there’s machinery there’s all

sorts of stuff going on you hit the

water right there boom totally different

world that blue color penetrates inside

the sphere of the sub you start to hear

the sounds you don’t hear the ship

anymore but you start to hear animals

you hear the pinging of a sonar going

down to the bottom and back up some

divers check you out and say it’s okay

to dive if you push a couple of buttons

down you go three of you so you’re on a

journey into this unknown world the

first half hour you go light blue medium

blue dark blue and then for two hours

pitch-black and we thought there’d be no

life at all down there in the darkness

but guess what full of life the animals

like this this animal here is only about

eight inches long it’s got all these

different working parts

he’s got fishing lures on the bottom and

tentacles and individual stomachs lots

of different stomachs and jet thrusters

and a lightness head full grown to be

longer than this room is wide okay and

so what we used to do with animals like

this like that one looks like it’s out

of Star Wars so this is all work done by

the

advanced imaging lab atwood told my

buddy billy lange and his team and so

now we build cameras now that we know

they’re there okay we never thought they

would be we can go inside there was

really special cameras and have a look

at these animals where they live and

they’ve all got light so like fireflies

in the dark that’s how they communicate

that’s how they attract prey that’s how

they avoid beating so they got all

different ways of using chemicals to

make light and they’re like these death

stars floating around eating those all

those little things you see some of them

are like little jet fighters like little

shrimp and things like that but these

animals even though they’re big and slow

can catch could catch those things and

inside there even though it’s a clear

body they’ve got teeth just like sharks

really sharp little teeth that animals

about that big this guy that’s an

octopus he’s about that big got a great

scientific name squishy you know hey

look at his head you can see through his

head you can see his fins flapping so

every time we go we’re finding stuff

like this you know and that’s the

amazing thing about oceanography and I

I’ve been really privileged to be part

of this for about 30 years so that you

know it’s every time you go down there

and turn on the lights you’re looking at

either a new landscape something new or

some new creature comes out of the

darkness that one’s about 10 inches long

and that’s the real color so it’s like

neon down there at the bottom of the

ocean and with those tentacles it could

be about that that long floating in the

darkness and I’m a geologist by training

so I can just look at animals and say

wow that’s really cool other times you

know we go to the bottom of the sea and

we know what we’re going to find we’re

looking for something like Titanic this

is video from Titanic and the Titanic is

amazing right sank in 1912 over a

hundred years ago and we’ve been

exploring it for the last couple of

decades and aiko led the last expedition

out there with premiere exhibitions and

in NOAA and a couple of other groups and

we’re learning every time we go to

Titanic we learn something every single

year big ships like this sink to the

bottom of the ocean but they’re not

luxury liners like Titanic they’re

they’re usually carrying or or oil or

something like that

and each one’s got their own story so

but from Titanic view we’re sitting

right on the deck right now in the front

of Titanic that’s where the captain

would have been standing in this

would have been when you go to these

spots it’s awesome it’s really

emotionally powerful to be at these

spots when you know what what went on

there so long ago those are some of the

officers cabins on Titanic you know just

a really powerful really powerful moment

to see that and think about what

happened and one of the things we enjoy

doing is getting these stories out of

the sea back from Neptune and Poseidon

and bringing bringing them back so you

can share them too we can share them

with you there used to be when ship sank

we’d say they were gone for eternity to

the deep we committed them for eternity

to the deep well now with technology

were there you know with our robots and

submarines where we’ve crossed this

boundary called eternity now it’s not

just a deep water even in shallow water

strange things happen you know you’ve

got to be pretty good to be able to

survive when a barracuda is looking for

you in octopuses cephalopods can do that

so check this one out this is my work

work of Roger Hanlon at Marine

Biological Laboratory there’s some algae

sitting there but watch this

Roger creeps up on the algae boom that’s

an octopus a big guy too

and that’s his eye right there so once

he’s seen you see what he did he threw

up a cloud of ink and off he goes and

Rogers right behind him but Roger caught

him pretty easily once he was seen and

he tries to bluff by making his ice pot

really big by making his body really big

so we’re going to roll this backwards

and so it’s hard to believe that that

animal on the right

smooth skin light color can turn into

that stuff on the left so he’s got to be

able to prinkle his skin up change the

color of his skin but he does it and he

doesn’t like that boom gone really good

at doing stuff like that so but you saw

what happened once the octopus was

thought he was seeing he took off so

barracuda could learn if I can scare an

octopus it’ll take off then I got it I

don’t have to actually see it so what

octopus is learned to do is shape-shift

so these are optical is that instead of

camouflaging that’s camouflage but here

it looks like a flatfish in some cases

they shape-shift into a piece of coral

that’s an octopus he’s walking on two

legs crinkled up six legs over his head

and sometimes they bundle up like a

coconut sunk to the bottom of the ocean

and they escaped on their two legs which

is really amazing to me there you go so

a barracuda could be looking right at

that and saying I know there’s an

octopus around here but that’s not an

octopus that’s a coconut floating across

the bottom so just amazing things that

that animal can do and that’s the the

bottom line here I think so you know we

could go on and on and on and on there’s

thousands of new species we found

there’s all sorts of stories to be told

from ancient times to shipwrecks

modern-day wrecks and things like that

there’s a whole issue of climate change

there’s a whole thing about not

polluting the oceans so you know it’s

most of the planet but it does belong to

you you know if you don’t care about it

who should care about it so what I

encourage you to do you know if you want

to get into this kind of field you can

be an engineer you can be a scientist

you can be a technician you could be a

cook work on the deck of a ship it’s an

amazing world and that’s the one thing

that those and you know those animals do

amazing things and I promise you that

you can do amazing things too it’s in

all of us our curiosity if you keep your

curiosity alive and get curious about

something you’ll find a way to explore

it and to satisfy your curiosity and I

promise you that in someplace like the

ocean you set you go to find one answer

to one problem you’ll find ten more

questions that get your attention you

know I’ve got a TD it wasn’t easy for me

to get through school but once I got

into exploring the ocean it’s amazing

you know every time I turn around

there’s some new discovery to be made

it’s just it’s just great robots the

whole new world of robots are coming so

that you’ll be able we could actually

sit in this audience right here and and

drive a robot around the Titanic you

could do it on your on your iPhone if

you wanted to but there’s really nothing

like actually being there so in the

future when you see an image like this

one think about that planet and think

you know that’s your planet everybody

all of our ancestors lived on this

planet and for the near future – I mean

you want to go to Mars okay who’s in

kind of virus but after about a hundred

days of nothing but sand I think you’re

going to get a little bit bored up on

Mars this is an amazing planet it’s

still unexplored we still don’t know

what’s out there I’m not here to say hey

look at all the stuff we found and

there’s nothing so we

Lord 8% 92% the rest of it there’s

probably nothing out there I know that

that 92% of the oceans got absolutely

incredible credible things some of them

startling almost all of them surprising

and some of them revolutionary and you

don’t know until you go with your

curiosity out on a boat out on a ship

into a submarine and explore for your

very soul so keep your spirit of

curiosity alive thank you very much [Applause]

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