Street Science (2017–…): Season 2, Episode 12 - Dueling Infernos - full transcript

Delaney: THREE, TWO, ONE!

THAT WAS A BIG FLAME.

WE GIVE NEW MEANING
TO BLOWING UP A BALLOON...

ALL RIGHT. NICK, YOU READY? I'M READY.

AND EXPERIMENT WITH SOME GRILLING TIPS

THAT ARE NOT FIT FOR THE KITCHEN...

ALL RIGHT. I GUESS BLOW UP THE GRILL.

THREE, TWO, ONE!

OOH. WHOA.

OR YOUR CAR.

FIRE.



WHOA! YES!

MY NAME IS KEVIN DELANEY.

I'VE BEEN SHOWING OFF THE
MAGIC OF SCIENCE FOR YEARS,

FROM MUSEUMS TO TALK SHOWS.

WE'RE TAKING SCIENCE TO THE STREETS

AND COMBINING EVERYDAY ELEMENTS IN WAYS

THAT WILL BLOW YOUR MIND.

I'VE GOT A TALENTED TEAM
OF ENGINEERS AND EXPERTS,

INCLUDING THE BACKYARD SCIENTIST HIMSELF...

WAIT. THAT WAS A TWIST-OFF?

AND OUR CINEMATOGRAPHER, DARREN,

WHO USES HIGH-TECH
CAMERAS TO REVEAL THE SCIENCE

THAT SURROUNDS US IN WAYS
YOU'VE NEVER SEEN BEFORE.

THAT'S GNARLY.



THIS IS "STREET SCIENCE."

♪♪

-WHAT'S UP, GUYS? -HEY. HI, EVERYBODY.

-WHAT'S GOING ON, GUYS? -NOT MUCH.

PRESENTS? THAT SMELLS KIND OF AWESOME.

WHO WANTS A DOG? I'LL HAVE A DOG.

OH, YOU GOT PROPANE, NOT CHARCOAL?

TASTE THE MEAT, NOT THE
HEAT, AND THAT'S WHAT HANK HILL

SAYS, RIGHT?

YEAH.

I PREFER CHARCOAL PERSONALLY,
BUT I LIKE THAT FLAVOR.

ALSO, PROPANE GRILLS
EXPLODE FROM TIME TO TIME.

YEAH. THERE'S A LOT OF
GASES THAT WE WORK WITH,

LIKE, ON A DAY-TO-DAY BASIS
THAT ARE ACTUALLY REALLY SCARY

IF YOU GET THEM IN THE RIGHT SITUATIONS.

I FEEL LIKE YOU'RE GOING TO
BLOW SOMETHING UP TODAY.

HEY, YOU GUYS WANT TO HANG ON

AND WATCH SOME DIFFERENT GASES EXPLODE?

YEAH, ABSOLUTELY.

Delaney: BREANNE IS
USUALLY BEHIND THE SCENES

ON THE STREET SCIENCE CREW,
BUT SHE AND HER FRIEND, CHRIS,

ARE SERIOUS GRILLERS AND PSYCHED
TO SEE WHAT NICK IS PLANNING.

I'M JUST GOING TO ENJOY MY BURGER.

MM-HMM. THEY'RE GOOD.

SERIOUSLY, BUENO.

SO HOW EXPLOSIVE IS THE
GAS IN YOUR BARBECUE GRILL,

AND HOW BIG OF A FIREBALL COULD IT CREATE?

NICK IS GOING TO KICK OFF THIS EXPERIMENT

BY LIGHTING A BALLOON FULL OF PROPANE,

THE MOST COMMON FUEL USED FOR BARBECUING.

SO FIRST UP, WE HAVE PROPANE.

EVERYBODY READY? ALL RIGHT.

THREE, TWO, ONE.

♪♪

WHOA. THAT WAS VERY COOL.

THAT WAS A BIG FLAME.

♪♪

FOR ANY EXPLOSION TO OCCUR,
YOU JUST NEED THE RIGHT MIXTURE

OF COMBUSTIBLE GAS AND AIR.

THIS 11-INCH BALLOON CONTAINS LESS THAN

1/2 CUBIC FOOT OF PROPANE GAS,

BUT THE FLAME DOESN'T LIGHT
THE GAS BALLOON IMMEDIATELY.

AS WE CAN SEE IN DARREN'S SLOW-MOTION SHOT,

THE FLAME FIRST POPS THE BALLOON,

AND THE PROPANE RAPIDLY
SPREADS INTO A MUCH BIGGER AREA.

♪♪

AS THE PROPANE MIXES WITH OXYGEN,

IT REACHES THE RIGHT
AIR-TO-FUEL MIXTURE AND IGNITES.

THAT WAS A BIG FLAME. NOW HOW BIG WAS THAT?

IF I WERE STANDING AT A
GRILL AND THAT HAPPENED...

ABOUT AS BIG AS, I DON'T KNOW, 7 FEET.

WOW.

IF I HAD BEEN STANDING
NEXT TO THAT BALLOON,

I THINK THAT FIREBALL WOULD'VE ENGULFED ME.

DEFINITELY SEEING THAT 7-FOOT FIREBALL

IS NOT SOMETHING THAT I
WANT TO HAVE HAPPEN TO ME

WHEN I'M GRILLING ANYMORE,

SO MAYBE I'LL LEAVE THAT
TO SOMEBODY ELSE NEXT TIME.

Delaney: PROPANE DEFINITELY
CREATES A BIG FLASHY BOOM,

BUT IT NEEDS A SPECIFIC AMOUNT
OF GAS IN THE AIR TO CATCH FIRE.

OOH.

IF THERE'S TOO MUCH OR
TOO LITTLE PROPANE IN THE AIR,

IT WON'T LIGHT.

LIKE PROPANE, BUTANE FUELS MANY
POPULAR CAMP STOVES AND GRILLS,

BUT WILL IT CREATE A DANGEROUS
FIREBALL LIKE PROPANE DID?

ALL RIGHT. NICK, YOU READY?

I'M READY. THREE, TWO, ONE!

WHOA!

SO THAT WAS A PRETTY SMALL BALLOON,

BUT THAT WAS A BIG FIREBALL.

LIKE THE PROPANE, THE BUTANE
CREATE A 7-FOOT FIREBALL.

ONE OF THE BIG THINGS THAT
HAPPENS WITH THESE BALLOONS

WHEN THEY POP IS THAT
THEY'RE UNDER PRESSURE,

SO AS THEY POP, IT PUSHES
ALL THE GAS OUT AS IT EXPLODES,

SO IT IS DEFINITELY EXPANDING,

AND THAT'S WHY YOU GET
THAT REALLY BIG FIREBALL

THAT GROWS AND THEN RISES.

THAT'S WHY EVEN A SMALL
AMOUNT OF GAS IN A GRILL

COULD BE DANGEROUS.

NEXT, WE'LL COMPARE OUR
EVERYDAY COOKING GASES

TO A GAS THAT'S EVEN
MORE EXPLOSIVE, ACETYLENE.

IT'S USED MORE FOR WELDING THAN COOKING,

BUT SOME BACKYARD CHEFS
USE IT FOR SEARING MEAT

WHEN THEY WANT A SUPER HOT FLAME.

SO, EVERYBODY, WATCH YOUR EARS.

THREE, TWO, ONE.

♪♪

WHOA. WHAT DO YOU GUYS THINK?

Woman: SEEMED TO BE THE SAME SIZE,

BUT THIS ONE WAS DEFINITELY
LOUDER AND SMOKIER.

YEAH.

IT'S EXTREMELY EXPLOSIVE,
SO WHILE WE MIGHT HAVE HAD

A MORE CONCUSSIVE BLAST
OUT OF THE ACETYLENE,

FIREBALL WAS ABOUT THE SAME SIZE,

SAME AS PROPANE OR BUTANE.

IT'S NO SURPRISE THAT PEOPLE
COULD GET HURT USING THIS STUFF.

Delaney: DARREN'S HIGH-SPEED CAMERA

CAPTURES ACETYLENE'S
POWERFUL MOMENT OF IGNITION.

BOTH PROPANE AND BUTANE DON'T
EXPLODE EASILY IF USED PROPERLY,

BUT ACETYLENE IS HIGHLY EXPLOSIVE

AND CAN REACH TEMPERATURES
OF OVER 6,000 DEGREES FAHRENHEIT.

IT'D BE INTERESTING TO
SEE WHAT IT LOOKS LIKE

IF IT'S ACTUALLY INSIDE OF A GRILL

INSTEAD OF JUST IN A BALLOON.

I HAVE A FEELING YOU'RE MORE
THAN JUST WONDERING ABOUT THIS.

NO COMMENT.

♪♪

NEXT, WE'RE AT A LOCAL PARK TO EXPLORE

WHAT PEOPLE SEE OR THINK THEY SEE.

NICK AND THE CREW ARE SETTING
UP A FEW OPTICAL ILLUSIONS

TO CHALLENGE PEOPLE ON THE STREET.

HOW GOES IT?

WHAT'S UP, GUYS? HI, GUYS.

YOU WANT TO CHECK OUT
SOMETHING KIND OF COOL?

SURE.

SO WE HAVE SOME HORIZONTAL LINES HERE.

I WANT YOU TO COUNT HOW MANY ARE STRAIGHT

AND HOW MANY ARE SLANTED.

FOURTEEN SLANTED.

MY GUESS WOULD BE ABOUT
HALF OF THEM ARE STRAIGHT.

ABOUT SEVEN SLANTED?

THEY ALL LOOK CROOKED.

THEY ALL LOOK KIND OF CROOKED.

ALL RIGHT. CARLOS, GO AHEAD AND HIT IT.

THEY'RE ALL STRAIGHT.

I...

WHEN I FIRST LOOKED AT IT,

I THOUGHT THEY WERE
STRAIGHT AT FIRST GLANCE,

AND THEN AS I STARTED TO
LOOK AT EACH ONE, ONE BY ONE,

AND IT LOOKED LIKE THEY WERE SLANTED.

Delaney: OPTICAL ILLUSIONS USE COLOR,

LIGHT AND PATTERNS TO DECEIVE THE BRAIN.

ALL WE'RE DOING HERE IS
SHIFTING ALTERNATING ROWS

BY HALF A SQUARE.

AT FIRST, THE LINES AND SQUARES

OF THE CHECKERBOARD LOOK STRAIGHT,

BUT WHEN THE SQUARES ARE SHIFTED,

THE BRAIN CAN'T PROCESS THE VARIATIONS

OF BLACK AND WHITE CLEARLY,

AND THE HORIZONTAL LINES
START TO LOOK SLANTED

EVEN THOUGH THEY'RE NOT.

LET'S TRY ANOTHER ONE.

THIS TIME, WE HAVE A MORE COMPLEX SETUP,

A LARGE CANVAS WITH MULTICOLORED CIRCLES

AND A PLANK TO STAND ON.

SO WHAT I'M GOING TO ASK YOU TO DO

IS LOOK INTO THE CENTER WHITE DOT

AND JUST FOCUS ON IT FOR ABOUT 30 SECONDS.

OKAY.

WHAT DOES IT LOOK LIKE?

LITTLE ROTATION AROUND A
WHITE DOT RIGHT NOW, I'M SEEING.

THEY'RE STARTING TO LOOK
LIKE THEY'RE SPINNING A LITTLE.

ONE IS GOING ONE WAY.

ONE OF THEM IS GOING THE OTHER WAY.

THESE CIRCLES, THEY
SEEM LIKE THEY'RE MOVING,

BUT TRUST ME WHEN I SAY THEY'RE NOT.

SO NOW TRY LOOKING AT ONE DOT

AND MOVING TO THE NEXT DOT TO THE NEXT DOT.

THE DOT THAT I'M LOOKING
AT DOESN'T SEEM TO MOVE.

HOWEVER, THE OTHER DOTS ARE SPINNING.

YOUR PERIPHERAL VISION. MM-HMM.

DO YOU SEE THE WHEELS SPINNING?

I DO.

HOW YOU FEELING?

I'M GETTING A LITTLE DIZZY.

HOW YOU FEELING, MAN?

LITTLE DIZZY.

RIGHT? LITTLE BIT DIZZY.

YES.

MY BALANCE WAS A LITTLE OFF.

I DEFINITELY FELT DIZZY AND
WAS CONCERNED FOR FALLING.

OH, WAIT A MINUTE.

Delaney: WE'RE ON THE STREETS
SHOWING TRIPPY IMAGES

THAT MESS WITH PEOPLE'S BRAINS.

HOW DO YOU FEEL? DIZZY?

I DEFINITELY FELT DIZZY AND
WAS CONCERNED FOR FALLING

WHEN I WAS WALKING BACK AND FORTH.

OH, WAIT A MINUTE.

THERE YOU GO.

UGH. BALL PITFALL.

WHEN I WALKED BACK AND FORTH ON THE PLANK,

THE IMAGE STARTED TO SPIN,
WHICH CAUSED ME TO FALL.

IT ACTUALLY SURPRISED ME QUITE A BIT

THAT THAT IMAGE MADE ME FALL OFF THERE.

Delaney: I'M NOT SURPRISED, AND HERE'S WHY.

THIS IS CALLED A PERIPHERAL DRIFT ILLUSION.

THE IMAGE IS STATIONARY,
BUT OUR PERIPHERAL VISION

MAKES THE DOTS APPEAR TO BE MOVING.

AFTER STARING AT THE IMAGE FOR 30 SECONDS,

WE THINK WE'RE MOVING TOO,
WHICH KNOCKS US OFF-BALANCE.

THIS IS JUST A STILL IMAGE.

THERE'S NOTHING MOVING ON IT,

BUT BECAUSE THESE COLORS AND PATTERNS

AND SHAPES KIND OF CONFUSE
YOUR BRAIN A LITTLE BIT,

YOUR EYES ARE TRYING TO MAKE SENSE OF IT,

AND SO IT LOOKS LIKE IT'S
MOVING EVEN THOUGH IT'S NOT.

IT'S YOUR MIND JUST
TRYING TO FILL IN THE DOTS.

PLAYING TRICKS ON ME.

NICK HAS SCROUNGED UP A GRILL,
AND WITH HELP FROM KEVIN KOHLER,

THE BACKYARD SCIENTIST,

IT'S TIME TO FIELD-TEST GRILLING
HORROR STORIES WITH PROPANE.

OUR CRASH TEST DUMMY, SEBASTIAN,

WILL BE THE CHEF AT THIS COOKOUT.

ALL RIGHT, GUYS.

SO SINCE THERE ARE ALL
THESE STORIES OF PEOPLE

GOING TO LIGHT THEIR GRILLS

AND THE GRILLS EXPLODING
WITH BOTH THE LID OPEN

AND CLOSED, WHAT'S GOING TO HAPPEN?

WELL, WE GOT A BARBECUE GRILL OUT THERE.

WE'RE GOING TO OPEN THAT WAY
UP, FILL THAT GRILL WITH PROPANE

TO SEE WHAT KIND OF
FIREBALL WE CAN GET IN THERE.

ALL RIGHT. AND, DARREN, YOU'RE GOING TO BE

AT A SAFE DISTANCE AWAY THOUGH, RIGHT?

OF COURSE. ALL RIGHT.

I GUESS BLOW UP THE GRILL.

HOW EXACTLY CAN WE LIGHT A BARBECUE GRILL

THAT COULD EXPLODE?

Man: WE COME UP WITH THIS INVENTION,

WHICH IS BASICALLY A
GIANT BARBECUE LIGHTER,

SO IT'S A TORCH TAPED TO
THE END OF A 16-FOOT POLE,

SO WE JUST TURN ON THE GAS, LIGHT IT,

AND THEN I CAN REACH WAY OVER HERE

TO IGNITE IT FROM A SAFE DISTANCE

WITHOUT BLOWING MYSELF UP.

Delaney: IN THE U.S.,
FIRES FROM GRILLS LEAD,

ON AVERAGE, TO 10 DEATHS

AND OVER $100 MILLION IN
PROPERTY DAMAGE EVERY YEAR.

GAS-FIRE GRILLS CAUSE THE MAJORITY OF

GRILL-RELATED HOME FIRES
VERSUS COAL-FIRE GRILLS.

THE PROBLEM OFTEN RESULTS
FROM IGNITING TOO MUCH GAS

WHEN THE VALVE IS LEAKING OR BROKEN.

BUT WHAT'S MORE DANGEROUS
FOR THE COOK, LID OPEN OR CLOSED?

READY WHEN YOU ARE, KEVIN.

ALL RIGHT. COME ON.

Delaney: FIRST, LET'S
TRY WITH THE CLOSED LID.

OUR PROPANE HAS BEEN FILLING
THE GRILL FOR ABOUT 30 SECONDS.

ONE, TWO, THREE.

♪♪

WHEN KEVIN IGNITES THE GRILL,

GAS THAT HAS BEEN BUILDING UP UNDER THE LID

EXPLODES WITH ENOUGH PRESSURE
TO BLAST THE METAL LID WIDE OPEN.

HONESTLY, I WAS SHOCKED
AT HOW BIG THE FIREBALL WAS.

I MEAN, I COOK ON A GAS GRILL ALL THE TIME

AND DON'T EVEN WANT TO
KNOW WHAT IT WOULD BE LIKE

IF AN EXPLOSION HAPPENED.

WHAT WAS INTERESTING ON
THIS SHOT IS THAT THE PROPANE

WAS KIND OF FOLLOWING
THE CONTOUR OF THE GRILL.

LIKE, YOU COULD SEE,
LIKE, THIS LITTLE SPIRAL KIND

OF FORMING OUT OF THE EDGE.

IT BASICALLY JUST WAS A
HUGE FLASH BALL OF EXPLOSION.

IT WAS BRIGHT.

I COULD DEFINITELY SEE
THAT HURTING SOMEBODY.

Delaney: BUT WHAT WOULD
HAPPEN IF WE LET THE GAS ESCAPE

BY FIRST OPENING THE LID.

YOU GUYS READY?

I'M GOOD TO GO.

ALL RIGHT. WHENEVER YOU'RE READY.

HERE WE GO.

ALL RIGHT. THREE, TWO, ONE!

OOH!

Delaney: IT MAY LOOK LIKE
WE'RE GRILLING IN THE PARK,

BUT WE'RE ACTUALLY DOING
A BIT OF STREET SCIENCE.

WHEN KEVIN KOHLER LIT A
FLAME NEAR A CLOSED GRILL

FULL OF PROPANE, THE LID BLEW OPEN.

NOW WE'RE OPENING THE LID FIRST.

THREE, TWO, ONE!

OOH! WHOA.

OKAY.

♪♪

Delaney: THIS TIME, THE FLAMES
LEAP 5 FEET FROM THE GRILL.

YOU'D BE IN TROUBLE IF
YOU WERE STANDING HERE.

HE'S WARM.

Woman: OPENING IT UP MAKES IT WORSE,

AND THAT EXPLOSION WAS DEFINITELY

NOT WHAT I WAS EXPECTING.

POOR SEBASTIAN GOT FRIED.

I FEEL SO BAD FOR HIM BUT
BETTER HIM THAN ME, SO...

BOTH TIMES THAT WE'VE DONE THE EXPERIMENT,

THE GUY HAS BEEN ENGULFED IN FLAMES,

SO WHEN IT WAS CLOSED, THE
PRESSURE POPPED THE LID UP

AND SHOT FIRE,

LIKE, 3 OR 4 FEET, KIND
OF ENGULFED THE GUY,

AND WHEN WE OPENED THE LID AND IGNITED IT,

IT WAS JUST A BIG FIREBALL,
JUST DRIFTED RIGHT IN HIS FACE,

AND HE IS WELL-DONE.

REALLY INTERESTING THING ABOUT PROPANE GAS

IS THAT IT'S HEAVIER THAN AIR,

SO IT SINKS INSTEAD OF FLOATING OFF

OR JUST DISSIPATING INTO THE AIR,

SO WHAT HAPPENS WHEN THIS
GRILL GETS FULL OF PROPANE

IS IT ALL SITS IN THE BOTTOM OF THE GRILL

INSTEAD OF VAPORIZING OFF INTO SPACE.

SO THE INSIDE OF THE
GRILL FILLS WITH PROPANE

WITHOUT THE PILOT LIGHT ON.

WHAT CAN HAPPEN TO A PERSON
IS THAT THEY TRY TO LIGHT IT

AND IGNITE A BIG OLD
FIREBALL RIGHT IN THEIR FACE.

♪♪

SEBASTIAN IS DONE.

HE'S LIKE, "NO MORE, GUYS."

WE'VE SEEN HOW PROPANE
IGNITES IN A CLOSED GRILL

AND AN OPEN GRILL AND IN THE BALLOONS,

BUT THERE'S ANOTHER STORY
OF FOLKS DRIVING IN A CAR

WHO FORGOT TO TURN THEIR PROPANE TANK ON,

AND SOMEBODY LIGHTS A CIGARETTE,
AND THE CAR WINDOWS BLOW OUT.

SOUNDS LIKE SOMETHING I WANT TO TRY.

I FIGURED IT MIGHT.

YOU GUYS WANT TO GO FOR A RIDE IN THE CAR?

NOT IF THERE'S PROPANE IN IT.

I CALL SHOTGUN.

♪♪

A GOOD WAY TO CHILL AFTER A BARBECUE BLOWUP

AND AFTER YOU GET SOME FIRST AID

IS WITH A COLD BEER AND A
COUPLE OF COOL BAR TRICKS.

OUR CHEMIST, ANNE-LISE, JOINS ME
AND DARREN AT A LOCAL BREWERY.

ALL RIGHT. WE HAVE THIS
GLASS AND THIS OLIVE,

AND YOU NEED TO GET
THE OLIVE INTO THE GLASS

WITHOUT TOUCHING THE OLIVE.

GOT IT.

ALL RIGHT. REMEMBER THE BLOWING THING.

ONE CARD. ALL RIGHT. READY?

THAT'S A NICE IDEA.

OH, WOW! NICE! NOT TOO BAD.

I FEEL LIKE THAT WAS NOT THE WAY TO DO IT.

NOT SANITARY. IT'S NOT SANITARY.

THAT'S A WAY TO DO IT. YEAH.

SO YOU CAN JUST SPIN IT AROUND,

AND THEN YOU'LL SEE THE OLIVE
STARTS TO MOVE UP THE GLASS.

BECAUSE OF THE SHAPE OF THE GLASS.

THE KEY IS THE SHAPE OF THE GLASS,

WHICH IS NARROW AT THE
TOP LIKE A BRANDY SNIFTER.

CENTRIFUGAL FORCE CREATED
BY THE SPINNING GLASS

DRAGS THE OLIVE UP INTO THE GLASS,

AND THE OLIVE STAYS THERE AS
LONG AS THE GLASS IS SPINNING.

WELL, THANK YOU, GUYS, VERY
MUCH, AND NOW YOU HAVE A TRICK

YOU CAN BOTHER YOUR FRIENDS WITH.

FUN BAR TRICKS. THERE YOU GO.

♪♪

Delaney: NEXT, WE'VE GOT ANOTHER TRICK,

MAKING A TABLE WITHOUT ANY
CONSTRUCTION TOOLS OR MATERIALS.

THIS GROUP DOESN'T KNOW WHAT'S COMING.

SORRY TO INTERRUPT. WE
HAVE SOMETHING TO SHOW YOU.

YOU GUYS HAVE A SECOND? SURE.

HOPEFULLY YOUR FOOD WILL STAY WARM.

ALL RIGHT.

EVERYBODY, STAND UP AND COME THIS WAY.

GRAB YOUR CHAIRS.

FIRST, WE NEED TO SET A
SUPPORTING STRUCTURE

SETTING FOUR CHAIRS.

THEN EACH PERSON SITS DOWN
FACING EACH OTHER'S BACKS.

AS CLOSE AS YOU ARE NOW,
WE'RE GOING TO ASK YOU GUYS

TO GET A LITTLE BIT CLOSER.

ALL RIGHT.

NOW LEAN BACK UNTIL EVERYBODY
IS LYING ON EACH OTHER'S LAP.

OKAY. MM.

NOW WE'RE GOING TO TAKE
THE CHAIRS AWAY ONE AT A TIME.

I'M GOING TO TAKE THIS CHAIR AWAY.

OKAY. OH, MY GOD. OH, MY GOD.

YOU GUYS READY? YEP.

OKAY. I'LL MOVE THE LAST CHAIR.

WHAT? WHAT?

SO WHAT ARE WE SITTING ON?

EACH OTHER.

HERE WE GO. WHOA!

♪♪

Delaney: WE'RE AT A LOCAL DINER,

AND INSTEAD OF WAITING
FOR A TABLE FOR FOUR PEOPLE,

WE DECIDED TO MAKE A
TABLE OUT OF FOUR PEOPLE.

WHAT WE'RE GOING TO DO,
WE'RE GOING TO TAKE THE CHAIRS

AWAY ONE AT A TIME UNTIL
THERE ARE NO CHAIRS.

SO WHAT ARE WE SITTING ON?

EACH OTHER. AH.

WHAT?

WE'VE REMOVED THREE OF
THE CHAIRS WITH ONLY ONE LEFT.

IT'S STILL HOLDING UP ALL FOUR PEOPLE.

I'LL MOVE THE LAST CHAIR.

OKAY. HERE WE GO.

WHOA! WHOA.

I'M GOING TO SCOOCH IT OUT, AND NOW...

YOU ARE A TABLE!

WHOA!

NICE.

AND THE ONLY THING
SUPPORTING YOU ALL IS YOU ALL.

THE DINERS FORM A STABLE STRUCTURE

BECAUSE EACH PERSON IS SUPPORTED
BY THE PERSON NEXT TO THEM.

THAT WAY, THEY CAN STAY SUSPENDED

WITHOUT THE SUPPORT OF THE CHAIRS.

YOU GUYS DONE BEING A TABLE?

YES. ALL RIGHT.

LET'S START MOVING THE CHAIRS BACK.

WHOA. WHOA.

THERE YOU GO. LIKE A CARNIVAL RIDE.

AWESOME. UP A LITTLE.

OH.

NOT TOO BAD. NOT TOO BAD.

WELL, THANK YOU, GUYS, VERY
MUCH, GOOD JOB, EVERYBODY.

YAY! THERE WE GO.

I WAS 50/50 THAT THIS
WILL WORK, WILL NOT WORK,

BUT FINALLY, IT DID WORK,

SO THUMBS UP TO KEVIN AND SCIENCE.

♪♪

Delaney: SO FAR, WE'VE SEEN
WHAT HAPPENS WHEN FIRE

AND EXPLOSIVE GASES MEET UP.

EVEN WHEN A GAS GRILL IS OPEN,

POOLING PROPANE CAN TURN
THE GRILL INTO A MASSIVE FIREBALL,

BUT WE WANT TO SEE WHAT ELSE COULD HAPPEN

TO AN UNLUCKY GRILLER.

WHAT IF YOU ACCIDENTALLY
LEFT A PROPANE GRILL

TURNED ON IN YOUR CAR
AND THEN LIT A CIGARETTE?

WOULD THE CAR CATCH
ON FIRE OR EVEN EXPLODE?

WE'VE COME TO THE COUNTY
SHERIFF'S TRAINING CENTER

TO FIND OUT.

OKAY. HERE'S THE BACKSEAT BARBECUE.

OUR BUDDY, SEBASTIAN, IS A LITTLE SINGED

FROM THE LAST EXPERIMENT

BUT IS ALWAYS WILLING TO
BE OUR DESIGNATED DRIVER.

MAN, SEBASTIAN, DON'T YOU KNOW
THAT SMOKING IS BAD FOR YOU?

WHAT DO YOU GUYS THINK?

I DON'T THINK IT'S GOING TO
BLOW OUT ALL THE WINDOWS,

BUT I DEFINITELY THINK SEBASTIAN

IS GOING TO HAVE A LITTLE FACIAL IN THERE.

HONESTLY, I'M A LITTLE TERRIFIED TO SEE

IF IT ACTUALLY WORKS BECAUSE,
EVERY DAY, YOU DRIVE A CAR,

BUT WHAT IF YOU FORGET?

OH, WELL, THAT'S WHAT HAPPENED, SO...

I WOULD BE VERY NERVOUS FOR SEBASTIAN.

AT THE VERY LEAST, LET'S HOPE

SEBASTIAN LEARNS A VALUABLE LESSON.

WITH THE FIRE DEPARTMENT AND
THE BOMB SQUAD STANDING BY,

WE'RE READY TO FILL THE CAR WITH PROPANE.

AND START.

STARTING TO FILL!

T MINUS 2 MINUTES!

Delaney: ONCE THE CAR
FILLS UP WITH PROPANE,

THE TEAM LIGHTS IT UP.

WHAT DO YOU HAVE IN THERE,
JUST, LIKE, THE EQUIVALENT

OF A CIGARETTE LIGHTER?

YEAH. THEY JUST PRESS A
BUTTON ON THE MACHINE.

IT MAKES A SMALL SPARK,
JUST REALLY TINY, LIKE,

JUST SINGLE MATCH. THAT'S ALL IT DOES.

FIRING IN THREE, TWO, ONE. FIRE!

WHOA!

-HEY! THAT WAS REALLY COOL! -OKAY.

THAT WAS, LIKE, EXACTLY WHAT YOU EXPECTED.

♪♪

-WHOA! -YES!

-THAT WAS GOOD. -THAT WAS AWESOME.

THAT WAS SO COOL.

THAT WAS WILD.

I LOVE THAT YOU COULD
BASICALLY SEE THE SHOCK WAVE

WITHOUT EVEN HAVING HIGH SPEED.

LIKE, THAT WAS VISUAL TO THE NAKED EYE.

THAT STORY CHECKS OUT.

I MEAN, IT JUST BLEW THE WINDOWS OUT,

AND IT LOOKS LIKE THE CAR IS JUST FINE.

YEP.

SO WHAT'S INTERESTING HERE IS
THAT WE HAD A TON OF PRESSURE.

WE BLASTED OUT THE WINDOWS,

BUT THE FIRE WAS JUST THERE AND GONE.

WHAT'S ALSO KIND OF NEAT IS
THAT THE FARTHEST WINDOW

FROM WHERE THE EXPLOSION STARTED
WAS ACTUALLY BLOWN OUT FIRST,

WHICH MEANS THAT ALL OF THE EXPLOSION

WAS SHOT TOWARDS THE BACK,

AND THEN IT KIND OF, LIKE,
FILLED IN TOWARDS THE FRONT.

♪♪

PROPANE GRILL IN THE BACK OF YOUR CAR,

YOU'RE NOT GOING TO HAVE A GOOD DAY.

WE CREATED THIS MASSIVE
AMOUNT OF OVERPRESSURE

ON THE INSIDE, BLEW ALL THE WINDOWS OUT.

Woman: I WOULD NOT
RECOMMEND SMOKING IN A CAR

WITH A OPEN FUEL SOURCE.

NO, I DON'T... I THINK WE CAN...

NOT A GOOD IDEA. ALL AGREE, THUMBS DOWN.

I DO LIKE THAT HIS CIGARETTE IS GONE.

YEAH. COMPLETELY BURNED
OUT IN THE EXPLOSION.

WELL, HE GOT HIS LAST WISH.

YEP, A CIGARETTE.

SO CLEARLY, THIS IS A GOOD TIP.

MAKE SURE THE GAS IS OFF
WHEN THE GRILL IS IN YOUR CAR.