HE'S A SCIENCE TEACHER AND PART
OF THE NATIONAL WEEK OF MAKING
STARTING JUNE 16th.
PLEASE WELCOME
"SCIENCE BOB" PFLUGFELDER.
>> THANKS FOR SCIENCE!
>> Jimmy: DID YOU MEET JOHNNY
DEPP?
>> I DID, VERY NICE GUY, VERY
FRIENDLY.
>> Jimmy: WHAT ARE WE GOING TO
DO HERE?
I LIKE SHOWING HOW SCIENCE IS
USED IN EVERYDAY THINGS.
ANYONE THAT HAS A SMALL CHILD
THAT USES DIAPERS?
>> Jimmy: I HAVE A SMALL CHILD
THAT USES DIAPERS AND
OCCASIONALLY I WEAR ONE MYSELF.
>> THEY NEED TO DO A SHOTOUT TO
POLYMER SCIENTISTS.
POLYMERS ARE LONG CHAINS OF
MOLECULES.
HERE'S A DIAPER.
THERE ARE SURPRISES INSIDE OF
DIAPERS.
>> Jimmy: YES, THERE'S ALWAYS A
SURPRISE.
[ LAUGHTER ]
>> TEAR THIS OPEN AND THEN SHAKE
IT OVER THE TABLE.
>> Jimmy: OKAY.
>> YOU SEE THIS POWDER?
>> Jimmy: YEAH.
COCAINE?
>> NO, THAT'S A POLYMER.
>> Jimmy: OH.
>> IT HAS A VERY SPECIAL JOB.
WE HAVE A VERY LARGE AMOUNT OF
WATER.
THEN THIS IS DIAPER POLYMER.
WE'LL SHOW YOU HOW THAT POLYMER
WORKS.
TAKE THIS WATER, DUMP IT INTO
THE POLYMER.
NICE BIG FELL SWOOP THERE TO
STIR IT UP.
>> Jimmy: DID YOU EMPTY LIKE 100
DIAPERS TO GET THAT?
>> THAT'S A LOT OF WORK.
>> Jimmy: ALL RIGHT.
I SHOULD JUST DO IT?
>> DUMP THAT IN THERE, ONE QUICK
DUMP.
>> Jimmy: THIS IS JUST WATER?
>> YEAH, THERE IT GOES.
>> Jimmy: WHOLE THING?
>> YEP, WHOLE THING.
THAT GOES IN THERE.
>> Jimmy: WOW, THIS KID HAD A
LOT TO DRINK.
>> THEN WE GIVE IT, I DON'T
KNOW, FOUR SECONDS.
>> Jimmy: THAT'S WHAT'S IN
DIAPERS?
>> THAT'S WHAT'S IN DIAPERS.
[ CHEERS AND APPLAUSE ]
>> Jimmy: CAN WE MAKE IT COME
OUT?
WOW, LOOK AT THAT.
CAN I TOUCH IT?
OR IS IT POISONOUS?
>> NO, NO, DIG IN.
>> Jimmy: WOW, IT'S WARM TOO.
OH, IT'S KIND OF FUN TO PLAY
WITH.
>> IT IS.
>> Jimmy: CAN YOU DO THIS AFTER
THE DIAPER HAS BEEN USED?
I WOULDN'T WANT TO WASTE ANY.
>> THAT WOULD BE GROSS.
>> Jimmy: ALL RIGHT.
>> WE'RE NOT DONE WITH POLYMER
SCIENCE.
THERE'S ANOTHER KIND OF POLYMER,
IT'S THE SAME BUT THE MOLECULES
AR LITTLE DIFFERENT.
YOU WOULDN'T WANT TO USE THESE
IN TYPERS.
WE'LL SHOW YOU WHY IN JUST A
SECOND.
WE'LL DO THE SAME THING.
POUR THAT INTO THAT.
WE STIR IT UP.
THERE IT GOES.
>> Jimmy: IS THAT SUND COMING
FROM THIS?
OR THAT IS COMING FROM THE BAND?
[ LAUGHTER ]
>> THIS HAS A LITTLE BIT OF A
DIFFERENT REACTION.
THAT WE DIDN'T INCREASE THE
VOLUME.
WATCH THIS.
IF WE START TO JUST POUR SOME OF
THIS POWDER THAT'S CREATED OUT
OF THIS -- YOU'LL SEE THAT THIS
EXPANDS.
THIS IS AN EXPANDING POLYMER.
IT WILL END UP TAKING WAY MORE
SPACE --
>> Jimmy: THERE'S MORE, YEAH.
[ CHEERS AND APPLAUSE ]
>> KEEP GOING, KEEP GOING.
YEAH.
>> Jimmy: CAN I MAKE A SNOWBALL
OUT OF THIS?
YOU CAN'T MAKE A SNOWBALL OUT OF
THIS.
BUT I CAN MAKE A GOOPBALL OUT OF
THIS.
LOOK OUT, GUILLERMO!
[ DRUMROLL ]
[ CHEERS AND APPLAUSE ]
>> Jimmy: SORRY ABOUT THAT.
>> POLYMERS ARE FUN.
ALL RIGHT.
>> Jimmy: WHAT ELSE?
>> SHOULD WE DO A LITTLE FIRE?
>> Jimmy: YEAH, LET'S DEFINITELY
BURN THINGS, YEAH.
[ CHEERS AND APPLAUSE ]
>> THIS IS A LITTLE SOMETHING
THAT MY YOUTUBE FOLKS WANTED ME
TO EXPERIMENT A LITTLE BIT WITH.
SO THIS IS JUST GOOD
OLD-FASHIONED BLOW TORCH.
GOT TWO STAGES TO IT.
A HALF SQUEEZE PUTS THE GAS OUT.
THEN THAT LIGHTS IT.
>> Jimmy: OKAY.
>> ALL RIGHT?
THERE'S SOMETHING IN SCIENCE
CALLS A DEFLAGRATION WAVE.
A DETONATION ALSO WHEN YOU
TRIGGER DINE NIGHT.
A DEFLAGRATION IS ALL THE FIRE
THAT COMES OUT OF IT THAT
SUPERHEROES RUN AWAY FROM.
THIS IS FIRE, DON'T DO THIS AT
HOME.
ON THE OTHER HAND, IF YOU WANT
TO TRY IT, IT'S SUPER EASY.
[ LAUGHTER ]
>> Jimmy: OKAY.
>> GO AHEAD AND PUT THE END OF
THAT IN THERE.
>> Jimmy: OKAY.
>> ALL RIGHT.
TURN THE GAS ON.
BUT -- HALFWAY.
NOW WE'RE FILLING IN WITH
PROPANE.
WE'RE GOING TO SEE IF WE CAN
CREATE A DEFLAGRATION WAVE.
TRIGGER IT OFF.
SQUEEZE IT ALL THE WAY.
>> Jimmy: WE'LL GET THE FLAME IN
THERE?
YEAH, YEAH.
YOU SEE THAT?
>> Jimmy: OH!
>> THIS IS A SELF-PROPAGATING
WAVE THAT SHOOTS DOWN --
>> Jimmy: IT'S LIKE "STAR WARS."
[ CHEERS AND APPLAUSE ]
YOU COULD KILL BATMAN WITH
SLSLIDE
SOMETHING LIKE THIS.
>> THAT'S KIND OF COOL.
I'M A MAKER SO I DECIDED TO SEE
IF WE COULD RATHEMP IT UP A LIT
BIT.
I MADE A LITTLE SHOULD GO FOR
YOU.
COME ON OVER HERE.
WATCH YOUR HEAD THERE.
[ CHEERS AND APPLAUSE ]
YOU COME OVER HERE.
>> Jimmy: WHERE DID THAT COME
FROM?
>> SO I FIGURED, YOU KNOW, LET'S
BEND THE TUBES A LITTLE
BUSINESS.
THIS IS A DNA MOLECULE.
YOU KNOW WHAT DNA STANDS FOR IN.
>> Jimmy: DADDY NEEDS ALCOHOL?
>> DEOXY RIB BOW NEW CLAYIC
ACID.
YOU HAVE A SMART CROWD.
[ CHEERS AND APPLAUSE ]
>> Jimmy: WHERE DID THEY COME
FROM?
>> ALL RIGHT.
>> Jimmy: WE HAVE A DUMB HOST
WHAT IS WE HAVE.
>> WE'RE GOING TO SQUEEZE BODY
THOSE TRIGGERS HALFWAY.
ALL RIGHT, WE'RE GOING TO DO A
QUICK COUNTDOWN.
WE'VE ALSO ADDED SOME MUZZLES TO
THE END WHERE EXTRA PROPAIN CAN
GATHER.
HERE WE GO.
THREE, TWO, ONE --
>> Jimmy: WHOA!
[ CHEERS AND APPLAUSE ]
WHAT IF WE PUT SOME OF THAT SNOW
POWDER IN HERE?
WILL WE HAVE A REAL CRAZY
EXPLOSION?
I'LL KILL YOU, BATMAN!
>> THE NATIONAL WEEK OF MAKING,
AN ORGANIZATION THE NATION OF
MAKERS, JUNE 16th TO 22nd, WE
ARE ENCOURAGING ALL MAKERS OUT
THERE, WHETHER A WOODWORKER,
MAKE STUFF WITH GLUE GUNS AND
CARDBOARD --
>> Jimmy: YOU MAKE
METHAMPHETAMINE, FOR INSTANCE?
>> #NATIONOFMAKERS, ADAM SAVAGE
FROM MYTH BUSTERS, WE'LL CHECK
IT OUT AND HAVE A MAKER
COMMUNITY.
>> Jimmy: THERE WILL BE SEX?
>> I DON'T THINK SO.
>> Jimmy: ALL RIGHT.
WHAT ARE WE GOING TO DO HERE?
>> MAFBLS DOWN FOR A SECOND
HERE.
WE HAVE OUR OLD FRIEND.
DO YOU REMEMBER?
>> Jimmy: LIQUID NITROGEN.
>> 320 DEGREES BELOW FAHRENHEIT,
198 CELSIUS.
>> Jimmy: DO YOU WANT A SHOT,
GUILLERMO?
>> REMEMBER, IF YOU POUR THIS ON
THE FLOOR, YOU GET THIS LIGHT
AND FROST EFFECT.
YOU CAN WATCH IT DANCE ACROSS
THE FLOOR.
>> Jimmy: CAN I DO THAT?
>> GO AHEAD, SURE.
SEE THAT?
IT'S SO COLD IT DANCES ACROSS.
>> Jimmy: YES.
>> WE'RE GOING TO USE THIS TO
CREATE PROJECTILES.
>> GOOD.
>> HERE'S WHAT I'VE DONE.
TAKEN YOUR TYPICAL FIVE-GALLON
WATER BOTTLE.
AND WE'VE HACK THE IT AND ADDED
A SIX-INCH BARREL.
>> Jimmy: YEAH, BUT WHY?
WHY WOULD YOU DO THIS?
>> BECAUSE WE CAN.
WE'RE PUTTING 450 PING-PONG
BALLS IN THERE.
AND THEN THE BACK WE HAVE A
CHAMBER FOR SOME HOT WATER.
HERE'S WHAT'S GOING TO HAPPEN.
LIQUID NITROGEN GOES IN HERE,
STEP ONE.
STEP TWO, HOT WATER GOES IN
HERE.
THERE'S A VALVE THAT KEEPS THEM
FROM MIXING.
STEP THREE, A CAP HERE.
STEP FOUR, A CAP HERE.
>> Jimmy: ARE YOU LISTENING TO
THIS?
>> THEN ON MY CUE PULL THIS
LEVER.
THAT WILL MIX OUR LIQUID
NIT
NITROGEN, OUR HOT WATER.
IT HAS AN EXPANSION RATIO OF ONE
TO 700.
IN OTHER WORDS WE'RE GOING TO
CREATE PRESSURE.
IF ALL GOES WELL THERE'S A
MEMBRANE IN HERE WHICH SHOULD
SEND PING-PONG BALLS FLYING.
>> Jimmy: LET'S DO THIS.
>> ALL RIGHT, HERE WE GO.
[ CHEERS AND APPLAUSE ]
ALL RIGHT, STEP ONE.
GRAB ONE OF YOUR LIQUID
NITROGENS.
>> Jimmy: GOT TO GET THE LIQUID
NITROGEN, HERE IT IS.
>> POUR THAT CAREFULLY INTO THE
RED FUNNEL.
>> Jimmy: THE WHOLE THING?
>> YEAH.
THAT'S GOING TO POUR IN THERE,
OF COURSE IT'S STILL LIQUID, YOU
CAN SEE SOME OF THE VAPOR AROUND
IT.
THAT'S MOISTURE THAT'S IN THE
AREA VAPORIZING.
>> YEAH?
>> THERE WE GO.
HOW'S IT GOING, IS IT BUBBLING A
LITTLE BIT?
IT TENDS TO DO THAT.
>> Jimmy: OKAY.
>> ALL RIGHT.
>> Jimmy: THAT'S IT.
>> ONCE YOU'VE GOT THAT IN
THERE, ALL RIGHT, YOU HAVE
ANOTHER FLASK THERE, IT'S GOT
THE HOT WATER IN IT.
>> Jimmy: GOT IT.
>> ALL RIGHT THAT GOES IN THE
BACK?
>> Jimmy: GUILLERMO, YOU'RE NOT
HELPING AT ALL.
>> POUR THAT INTO THE CHAMBER.
YOU'RE GOING TO FILL THAT UP TO
THE RED LIN.
>> Jimmy: THIS LOOKS LIKE
CHILDREN'S TYLENOL.
>> ALL RIGHT.
YOU GOT A LITTLE CAP TOWARDS THE
BACK THERE.
>> Jimmy: OKAY.
>> RIGHT UP TO THE RED LINE.
A LITTLE CAP IN THE BACK.
GO AHEAD, SCREW THAT ON.
>> Jimmy: OKAY.
>> ALL RIGHT, PULL THE FUNNEL
OUT.
>> Jimmy: WHAT?
>> Guillermo: PULL IT OUT?
>> YEAH, YOU GOT IT, GUILLERMO.
THAT'S GOOD.
>> Jimmy: CAN YOU PROMISE ME
WE'RE NOT GOING TO KILL ANN
WILSON?
>> ALL RIGHT, LITTLE CAP GOES ON
THE TANK.
>> Guillermo: HOLD ON, HOLD ON.
WAIT, HOLD ON.
>> YOU GOT THAT?
>> Jimmy: ALL RIGHT.
>> YOU GOT IT, GUILLERMO?
>> Guillermo: GOT IT.
>> ALL RIGHT.
HAND OVER HAND, ARE YOU READY?
PING-PONG CANNON IN THREE, TWO,
ONE --
[ CHEERS AND APPLAUSE ]
>> Jimmy: WOW.
>> Guillermo: WOW!
>> Jimmy: HOLY COW.
LET'S LOOK AT THAT AGAIN.
>> Guillermo: THIS IS SO COOL.
>> Jimmy: THAT WAS CRAZY.
[ CHEERS AND APPLAUSE ]
"SCIENCE BOB" PFLUGFELDER!
FIND OUT MORE ABOUT
ABOUT THE NATIONAL WEEK OF
MAKING AT WEEKOFMAKING.ORG.
THANK YOU, SCIENCE BOB.
Không có nhận xét nào:
Đăng nhận xét