>> Fiona: OW!
>> Mike: HA HA!
THAT'S WHY WE LEAVE THE SCIENCE
UP TO THE EXPERTS, LIKE ANDREA
COOK, SO YOU DON'T GET HURT.
ARE YOU OKAY.
>> Fiona: I'M OKAY.
>> Mike: IS THIS THE FIRST
TIME SOMEBODY HAS BEEN HURT WITH
LITTLE JARS?
>> AS FAR AS I KNOW.
BUT I'M FIRST AID CPR CERTIFIED.
>> Mike: THIS I A GYRO AND
THE PRINCIPLE BEHIND IT IS
CALLED --
>> PROCESSION.
>> Fiona: FOR THOSE WHO DON'T
KNOW WHAT IT IS.
>> WHEN YOU'RE RIDING A BICYCLE
AND THE BICYCLE WHEEL WOBBLES,
THAT'S THE WOBBLE.
SO YOU'VE GOT LIKE A PULL TO
RIGHT ANGLE IN THE ROTATIONS
DIRECTION.
SO ANYTHING THAT'S GOING TO GO
UP ON ITS EDGE LIKE A TOP,
GYROSCOPE OR BICYCLE WHEEL,
THAT'S PROCESSION AT WORK.
>> Mike: AND YOU'RE MORE
STABLE THE FASTER YOU GO ON A
BICYCLE SO THAT FORCE BECOMES
STRONGER.
SO IT'S ACTUALLY HARD TO FALL
OVER.
>> YEAH.
WE'RE GOING ON THE ROAD
TOGETHER.
>> Fiona: HE' MY TRAINING
WHEELS.
>> KIDS MAY NOT KNOW THE WORD
GYROSCOPE BUT THEY KNOW THE WORD
BEY BLADE.
THIS IS CALLED A VORTEX AND
YOU'RE GOING TO PUT A COIN ON
EITHER SIDE, FLAT.
IT'S GOING TO BE LIKE A LITTLE
SLIDE.
WHAT'S GOING TO HAPPEN IS YOU
HAVE GRAVITY PULLING IT DOWN,
OBVIOUSLY.
AND THEY HAVE CENTRIFUGAL FORCE
PULLING IT TOWARD THE CENTER.
NICE.
YOU GOT IT GOING THERE.
>> Mike: I COULD DO THIS ALL
DAY.
>> AND YOU HAVE PROCESSION
BRINGING THE COIN UP ON ITS
EDGE.
THAT'S OKAY.
I LOVE THESE THINGS.
YOU SEE THEM IN A LOT OF MUSEUMS
AND STORES.
IT'S A GREAT WAY TO GET A
DONATION.
>> Mike: YOU CAN GET ME THIS
FOR CHRISTMAS.
>> NOW THE NICKELS ARE GOING TO
GO DOWN SLOWER BECAUSE THEY HAVE
MORE INERTIA.
THAT'S CENTRIFUGAL FORCE
BRINGING IT TOWARD THE MIDDLE.
NOW A FUN WAY THAT YOU CAN TALK
ABOUT PROCESSION AT HOME, IF YOU
DON'T MIND HAVING BALLOONS,
MA'AM.
WE'RE USING CLEAR BALLOONS SO
YOU CAN SEE THERE'S A PENNY
INSIDE.
YOU WANT IT TO BE INFLATED TO A
MANAGEABLE SIZE.
GET IT GOING AND YOU HAVE
PROCESSION AND YOU GOT YOUR
PENNY GOING.
>> Mike: IT'S LIKE THE GUY ON
THE MOTORCYCLE AT THE CIRCUS.
>> TOTALLY.
YEAH, YOU CAN THROW THEM UP IN
THE AIR ONCE YOU GET GOING.
THROW, THROW, THROW.
>> Mike: READY, JOHN?
LET ME GET THIS GOING.
>> NICE.
THERE GOES MINE.
>> Mike: SHOOT!
IT DIDN'T WORK.
>> THIS IS FUN AND IT'S
DEFINITELY AN AT-HOME THING.
WHAT I LIKE TO DO AT MAD SCIENCE
IS HAVE PEOPLE SPIN.
WE'RE GOING TO SPIN HIM.
IS THAT COOL?
>> Fiona: YEAH.
IT'S TOTALLY FINE.
>> I HAVE A ROTATING PLATFORM.
HE'S GOING TO HOLD A BICYCLE
WHEEL.
THAT'S A GOOD EXAMPLE OF
PROCESSION.
FIONA IS THERE TO CATCH HIM IF
HE FALLS.
>> Mike: THIS IS LIKE BIG
GYRO.
FEEL HOW STRONG I AM?
>> Fiona: OH, LOOK AT WHAT'S
HAPPENING!
>> AND IT'S GOING TO TURN HIM.
HE CAN FEEL THAT FORCE.
IT'S LIKE RIDING A BIKE WITH
YO ARMS, RIGHT?
AND WHEN YOU PUT A SMALLER
SCIENTIST ON THERE, A CHILD,
PERHAPS, THEY SPIN PRETTY FAST.
>> Mike: YOU WANT TO TRY,
FIONA?
OH, SHE'LL BE FINE IN THE HEELS.
>> HE'S GOING TO SAVE YOU IF YOU
FALL.
READY?
TILT.
AND THEN TILT THE OTHER WAY.
>> Fiona: WOO!
WOO!
YEAH, IT WORKS.