[ MUSIC ]
>> WELCOME TO THE INTERNATIONAL
SPACE STATION.
I'M ASTRONAUT AKI HOSHIDE.
>> I'M ASTRONAUT MEGAN MCARTHUR.
TODAY, WE'RE GOING TO DISCUSS
HOW ENGINEERS DESIGN
SPACE STATION MODULES
SO WE CAN USE
THE ENTIRE VOLUME
TO LIVE AND WORK.
>> WHAT IS VOLUME?
GLAD YOU ASKED.
LET'S GO CHECK IT OUT.
AREA IS DEFINED AS
THE TWO-DIMENSIONAL SPACE
OCCUPIED BY A FLAT SHAPE
OR SURFACE OF AN OBJECT,
WHEREAS VOLUME IS THE AMOUNT
OF SPACE OCCUPIED INSIDE
A THREE-DIMENSIONAL OBJECT.
>> LENGTH TIMES WIDTH
WILL GIVE YOU
THE AREA OF A SQUARE.
TAKE THE AREA OF A SQUARE
AND MULTIPLY THAT BY ITS HEIGHT
TO GET THE VOLUME OF A CUBE.
FOR EXAMPLE, HERE'S A CUBE
THAT IS TWO METERS LONG
BY TWO METERS WIDE
BY TWO METERS HIGH.
MULTIPLY THOSE DIMENSIONS,
AND YOU GET EIGHT CUBIC METERS
OF VOLUME.
BUT THAT'S ONLY ONE WAY
TO CALCULATE VOLUME.
CONES, CYLINDERS,
AND SPHERES ALL HAVE
DIFFERENT FORMULAS
TO CALCULATE THEIR VOLUMES.
TO CALCULATE
THE VOLUME OF A CYLINDER,
WE TAKE THE AREA OF THE CIRCLE--
PI TIMES THE RADIUS SQUARED--
AND MULTIPLY THAT
BY THE LENGTH OF THE CYLINDER.
IN THE DESTINY MODULE,
WE HAVE A PRESSURIZED VOLUME
OF APPROXIMATELY
106 CUBIC METERS,
OR 3700 CUBIC FEET.
THAT'S A LOT OF SPACE
FOR US TO LIVE AND WORK.
>> DESTINY IS THE PRIMARY
RESEARCH LAB FOR U.S. PAYLOADS,
SUPPORTING A WIDE RANGE
OF EXPERIMENTS AND STUDIES,
CONTRIBUTING TO HEALTH, SAFETY,
AND QUALITY OF LIFE FOR
PEOPLE ALL OVER THE WORLD.
ENGINEERS DESIGNED
THESE CYLINDRICAL MODULES
FOR ASTRONAUTS TO UTILIZE
THE ENTIRE THREE
DIMENSIONAL SPACE.
>> SO YOU'VE LEARNED
THAT DESTINY IS
A CYLINDRICAL-SHAPED
PRESSURIZED MODULE,
BUT INSIDE THIS SPACE,
YOU CAN SEE THAT
OUR INTERIOR SPACE
IS A LITTLE BIT MORE
LIKE A SQUARE.
SO THESE RACKS ARE DESIGNED
TO FIT AGAINST THE WALLS
OF THE, UH, CIRCULAR
CYLINDRICAL MODULE,
AND SO THE BACK
OF THE RACK IS CURVED,
AND THE FRONT OF
THE RACK IS STRAIGHT.
AND SO, WE CAN KEEP
A VARIETY OF DIFFERENT KINDS
OF EXPERIMENTS
IN DIFFERENT RACKS,
AND WE CAN ALSO USE
THE CEILING AND THE FLOOR
JUST AS EASILY
AS IF IT WERE A WALL.
SO ONE OF THE PLACES
THAT WE STORE SOME OF OUR STUFF
IS IN THE CEILING.
YOU SEE WE HAVE THESE
DIFFERENT KINDS OF BAGS
THAT WE STORE THINGS IN
IN THESE DIFFERENT, UM,
KINDS OF CUPBOARDS.
WE ALSO CAN KEEP OUR MEDICAL KIT
UP HERE OUT OF THE WAY,
SO IF ANYBODY, UM,
GETS A CUT OR A SCRAPE
OR NEEDS SOME MEDICINE,
WE HAVE DIFFERENT PACKS
IN HERE THAT HAVE
ALL THE DIFFERENT THINGS
THAT WE MIGHT NEED
WHILE WE'RE UP HERE.
I CAN ALSO USE SPACE
IN THE FLOOR.
WE ACTUALLY HAVE A WINDOW
THAT'S IN OUR FLOOR
THAT LOOKS STRAIGHT DOWN
ONTO THE EARTH.
[ MUSIC ]
I HOPE YOU LEARNED A LITTLE BIT
ABOUT THE IMPORTANCE
OF ENGINEERING
AND UTILIZING VOLUME
ABOARD THE SPACE STATION TODAY.
USE THE CORRESPONDING
CLASSROOM CONNECTION
TO LEARN MORE ABOUT AREA
AND VOLUME AND CHALLENGE
YOURSELF TO REDESIGN
YOUR OWN HOME AND CLASSROOM
FOR LIFE IN MICROGRAVITY.
>> MAYBE ONE DAY
YOU WILL BE AN ENGINEER,
DESIGNING ROOMS FOR US
UP HERE IN SPACE.
SEE YOU NEXT TIME.