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>> HELLO, MY NAME IS
SHANE KIMBROUGH,
AND I'M AN ASTRONAUT,
LIVING AND WORKING UP HERE ON
THE INTERNATIONAL SPACE STATION.
IN THIS DEMONSTRATION,
I'LL BE TALKING ABOUT
THE FIVE MAIN SENSES WE HAVE,
AND HOW WE USE THEM
UP HERE ON THE STATION.
LET'S GO CHECK 'EM OUT.
AS HUMANS, WE HAVE FIVE SENSES
THAT LET US OBSERVE
THE WORLD AROUND US.
THESE SENSES ARE SIGHT, TASTE,
SMELL, HEARING, AND TOUCH.
OUR SENSES HELP US
DETERMINE WHETHER OR NOT
WE LIKE SOMETHING,
BUT THEY ALSO WARN US
IF SOMETHING IS WRONG.
SOMETIMES, OUR SENSES
PICK UP VERY GOOD THINGS,
LIKE THE SMELL
OF FRESH-BAKED COOKIES,
OR THE TASTE OF YUMMY PIZZA.
OTHER TIMES, OUR SENSES
MAY WARN US OF DANGER,
WITH THE SMELL
OF SOMETHING BURNING,
OR THE FEELING OF SOMETHING HOT.
LET'S GO THROUGH THE FIVE SENSES
AND TALK ABOUT
WHAT WE MAY OBSERVE WITH THEM
UP HERE ON THE STATION.
>> THE SENSE OF SIGHT ALLOWS US
TO SEE THE WORLD AROUND US,
OR IN MY CASE, SPACE.
HERE ON THE STATION,
ONE WAY WE USE
OUR SENSE OF SIGHT
IS TO SEE DIFFERENT EXPERIMENTS
WE ARE WORKING ON,
SO WE CAN REPORT THE RESULTS
BACK TO EARTH.
SOME ASTRONAUTS
HAVE NOTICED THAT
THEIR SIGHT CHANGES A LITTLE
AFTER LIVING IN MICROGRAVITY
ABOARD THE STATION.
SCIENTISTS ARE HELPING
TO FIX THIS
BY CONDUCTING RESEARCH UP HERE
ON ASTRONAUTS LIKE ME.
>> OUR SENSE OF TASTE
COMES FROM OUR TONGUE,
AND IT TELLS OUR BRAIN
WHAT KIND OF FOOD AND NUTRIENTS
WE ARE PUTTING INTO OUR BODY.
WE CAN TELL WHEN SOMETHING
IS SUPER SWEET OR VERY SALTY
BECAUSE OF THIS.
BECAUSE OF FLUID SHIFTS
ON A SPACE STATION,
SOMETIMES OUR NOSES
CAN BE A BIT STUFFY,
AND IT CAN BE HARDER
TO TASTE FOOD.
SO LOTS OF US LOVE
TO ADD HOT SAUCE
TO MANY OF OUR MEALS
TO AMPLIFY THE TASTE.
>> JUST LIKE WITH TASTE,
SOMETIMES OUR SENSE OF SMELL
CAN CHANGE UP HERE
IN MICROGRAVITY
AS THE LIQUIDS IN OUR BODY
MOVE AROUND.
ONCE OUR BODIES HAVE
ADJUSTED TO MICROGRAVITY,
THE SPACE STATION HAS
A VERY DISTINCT SMELL.
>> IN TERMS OF HEARING
INSIDE THE SPACE STATION,
THERE IS CONSTANT NOISE COMING
FROM THE DIFFERENT MACHINES
THAT KEEP OUR AIR FLOWING,
AND THE EXPERIMENTS RUNNING.
OUR SLEEPING QUARTERS BLOCK
SOME OF THE NOISE, THOUGH,
SO WE'RE ABLE TO GET
A GOOD NIGHT'S SLEEP EACH NIGHT.
WHAT DO YOU THINK YOU WOULD HEAR
OUTSIDE THE SPACE STATION?
WELL, YOU'D BETTER BE
WEARING A SPACE SUIT,
SO YOU'D BE HEARING
THE FAN NOISES
INSIDE THE SPACE SUIT.
BUT IF SOMEHOW YOU WERE ABLE
TO BE OUTSIDE OF THE SPACE SUIT,
YOU WOULD HEAR
ABSOLUTELY NOTHING,
BECAUSE SOUND
CANNOT TRAVEL IN SPACE,
BECAUSE IT HAS NO AIR
TO TRAVEL THROUGH.
>> USUALLY WHEN
YOU THINK OF TOUCH,
YOU THINK OF OBSERVING HOW
THINGS FEEL WITH YOUR FINGERS.
SINCE WE ARE FLOATING,
WE ARE CONSTANTLY HAVING TO
TOUCH AND GRAB ONTO OBJECTS,
EITHER USING OUR HANDS
OR OUR FEET.
YOU CAN USE YOUR FEET
TO WALK UP HERE,
IF YOU CAREFURLLY HOOK THEM
UNDER HANDRAILS AS YOU GO.
BUT THIS IS REALLY CHALLENGING,
SO WE LIKE TO USE OUR HANDS
MORE THAN OUR FEET
WHILE WE'RE UP HERE.
WE'LL OFTEN USE OUR HANDS
TO MOVE ALONG
AND CARRY OBJECTS WITH OUR LEGS.
THANKS FOR LEARNING
ABOUT THE FIVE MAIN SENSES
WITH ME TODAY.
START THINKING ABOUT
YOUR FIVE SENSES
AND HOW THEY HELP YOU OBSERVE
AND ADAPT TO YOUR ENVIRONMENT
DOWN ON EARTH.
SEE YOU NEXT TIME.