WHOOSH Bottle and Acetone

[@iwasnotme5268]

can we all pay our respects to that ceiling tile who took the hit?

[@xxdeadshot95xx83]

Yes

[@vivektam]

No, we can't and we shouldn't.

[@n4p3r0]

@@vivektam🤓

[@straighterthanaruler]

Yes we can

[@straighterthanaruler]

And for the bottle who also got hit

[@Fermifire]

Teachers that take risks like this were always my favorite and most memorable.

[@Ghosts1129]

My chemistry teacher was a lot like this, he made me love chemistry and helped me improve my grades.

[@jthomeskillet]

These days they are ran out for insurance reasons or some parents afraid for their kids

[@bornokbidencio1720]

He lost his job that same morning.

[@consciousmatter7584]

Juat got my degree in chemistry because of a teacher like this inspiring me in highschool. I barely made it out of HS with a 1.8 gpa but these vibes pushed me forward. Keep inspiring kids teachers youre changing lives. Just wish i could let him know he saved mine.

[@eyellgeteven9928]

I was never lucky enough to have the cool risk taking teachers...I always got stuck with the super strict, stodgy old bastard teachers. But I got to hear all the laughter and commotion going on it the next classroom all the time, because it was quiet as a tomb in our classroom. Plus, I got to hear the stories about all the cool shit that happened from friends in that class.

[@thenickseditious]

Do you hear the students actually excited and paying attention. This teacher rules.

[@RogueWolfStar18]

That was actually very rare for when **I** was in school. I can't imagine now 😅

[@huntersharddrive6951]

I so wish I had a teacher like this. As I got older I realized how many things I am interested in and how well I could have done in those fields. Instead my teachers wasted years of my life convincing me if I didn’t want to do useless math everyday I wouldn’t amount to anything. Much respect to this guy.

[@RogueWolfStar18]

@@huntersharddrive6951 I couldn't have said it better

[@KleinHeister]

​@@huntersharddrive6951for real, school is trash and should be completely rethought

[@qwerty112311]

Yea and they knew nothing about anything that caused it. Just there for a show. Dumb as all hell.

[@svn45246]

Our kids need more teachers like this. I wouldnt be suprised if a kid saw this and decided to be a astronaut.

[@kareldegreef3945]

But you need to be a 33 degree mason to be an astronaut :-D

[@alclay8689]

I would

[@FijiLaw]

You know your stuff 👋

[@danbaldry1925]

gotta love teachers who go the extra mile to inspire students with demos like this

[@victorparra8113]

In how to do dumb stuff?

[@I_got_nothin]

​@@victorparra8113no. In how to get the kids to pay attention instead of watching tictok in class and actually learn something about the real world not how to swallow a spoonful of salt.

[@glennplatvoet7111]

Dumb stuff that teaches causes of explosion s dum dummy

[@KyeM260]

@@victorparra8113no in how science can be cool

[@Sun_Dayzzz]

​@@victorparra8113Having fun with science in a fairly controlled manner

[@Kammo757]

This feels like an outdoor type of project

[@troyalger1603]

Only to the supersensitives that have bubble wrap around their children. Get over it liberal.

[@tuesdayschild4005]

Yep

[@younameit1407]

Wouldn't work outside

[@blvdes]

​@@younameit1407why not lol

[@alakani]

​@@blvdes Because the sky doesn't have ceiling tiles

[@khodges2]

Now that’s an awesome teacher. Science class was always so much fun.

[@stumpgrinder13]

Teachers who inspire like this are truly heros.

[@davidbilec3009]

this is why every great chemistry teacher has holes in the ceiling

[@andrewfowles3447]

Or burn marks..... Gun powder volcanos can get messy.

[@fredwerza3478]

My chem teacher had holes in the wall from him punching it after most of us failed his exams LOL

[@AlyDoubleJ]

Actually, it’s physics class that has holes in the ceiling chemistry classes have holes in the table and the floor

[@andrewfowles3447]

@@AlyDoubleJ Mine had both, plus a few walls. The teacher liked dropping chunks of sodium the size of a pool ball in water when he wasn't playing with gunpowder and thermite

[@justsomeguymustache]

​@@andrewfowles3447sounds like a man child(in a good way), like my father acting like a child during christmas. i think your teacher loves the profession he got 😂

[@slightlyevolved]

Maintenance must just LOVE this guy.

[@dislikedez]

Yeah take that outside, not like schools have the funding to repair anything

[@Dankneefantum]

@@dislikedez there was nothing to repair 💀 the ceiling tile was just caught on a corner, it will drop right back in

[@winstonweiss7972]

You beat me to it. I can't wait for the work order for someone to straighten the tile or replace it.

[@sardarali8447]

​@@dislikedez1 ma u 5 qa😊s

[@jakebrown1015]

lol they can cry all day as long as the students seem to be interested

[@rava2107]

It must be an adventure to be in this teachers class. You only have to listen to the voices in the background to see the effect he has on his pupils. Brilliant teacher ❤

[@siler7]

this teachers

[@lastchance8142]

Every future arsonist in that class was paying attention.

[@txgunguy2766]

Do you realize how flammable hand sanitizer is? It also makes a great whiteboard cleaner.

[@LaFox23]

Unhinged comment

[@sertifiedmusic6466]

Love science teachers like this.

[@user-rf5qj5ey5l]

You love teachers being dumb?

[@vader9133]

We had a really chill teacher that brought his electric guitar for the sound waves unit. He did 10 question quizzes on Fridays that you could write the answers on anything: One time someone handed in an orange peel with their answers and he still graded it. He was the legendary teacher that everyone told fond stories about. Fast forward five years, it turns out that he was sleeping with one of the students secretly for two years and got a warrant for dodging court. Be careful of the cool teachers, if they're relatable to 14 year olds, somethings probably not right.

[@jeepwk6.5L]

​@@vader9133a little judgmental 😅

[@vader9133]

@@jeepwk6.5L of a pedophile???

[@thevalorousdong7675]

​@@jeepwk6.5L🤓

[@manjitahzan9577]

What a teacher. He's willing to take the risk just to make the lesson fun. Salute.

[@bernardballard9551]

Im flagging this comment because you took it from the commenter above

[@MrPaxio]

only ones having fun here are the women who scream at the slightest loud noise like a rat, id be sleeping rn

[@sargentballs]

@@MrPaxioman you're miserable as shit lol

[@HoloScope]

@@MrPaxiook

[@illkissyourightnow]

@@MrPaxio average child brained comment

[@shine9944]

Now that's someone you learn something from,great job teacher.

[@alclay8689]

What did we learn from this

[@draizwrm]

Great teacher, great demo,

[@rossmacintosh5652]

If the floor had been freshly waxed the teacher could have ignited it. Had the bottle had a bit more oomph it could have gone into the ceiling space and started a fire. While it was a fun demonstration it was had the potential to have a much worse outcome. Should have been done outdoors in the middle of a big empty parking lot.

[@acCincy6913]

Teachers like these are what makes classes memorable! Especially when they do cool experiments like these!

[@kylemaynard7797]

Especially when the class burns down😅 lol i will never forget that time

[@iansanford6544]

Freshman in high school, asking the upperclassmen which science teachers you want to get next year, "the guy with the scorch marks on his ceiling"

[@heeder777]

Ahh the memories. Remember when the science teacher burned the floor before the exploding water bottle went into the ceiling and burned down the classroom. 😂

[@rustyshackleford3293]

This is a demonstration, not an experiment.

[@fredwerza3478]

I woulda loved to have teachers this brave at my high school --- mine were all wimpy and weak

[@sizzleMoose]

When the teacher gave none about the ceiling tiles, that's how you knew you were in for a good year.

[@primetimeturner_YT]

reminds me of when we would try and see who could stick their pencils into the ceiling during class without getting caught 🤣

[@bobthebuilder1360]

@@primetimeturner_YTlmao I remember that dumb shi😂

[@othyvitswamba1111]

😂😂😂. No, I think he is like I hope the architect and the engineers knew what this room was designed for.

[@justsomeguymustache]

​@@othyvitswamba1111its made out of concrete, im pretty sure its all good.

[@BloodyKnives66]

Never had a teacher like this. The world needs more people like this.

[@SullyOrange]

In 1975 or 76 I had a science teacher at Ramona High in Riverside. His name was Van Camp, and he was just like this. Then in 1983 I had him again, at Riverside City College. He had mellowed. We all still loved him and will always remember him.

[@Zibi21]

And those are the teachers we need, ones that enjoy what they do and want to make people learn while having fun. Nothing beats seeing a reaction with own eyes than read it in a book.

[@dspenseroftruth9373]

Tell politicians to leave them alone if you want lessons like this

[@xmarine73]

I don't think it's tough to find a guy that enjoys playing with fire. Just hire more male science teachers. Then give them a budget and a fire extinguisher. Kids are going to learn while having the best year of chemistry and/or physics they could possibly have.

[@glennplatvoet7111]

​@@dspenseroftruth9373it's insurance company s that's why o stop can't do that it's not covered by the police

[@BobbyGeneric145]

I had a science teacher like that... Kept me after class to show me to burning sugar breaks it into the constituent elements

[@gripnrip5633]

You say it like math or English teachers should juggle for your entertainment

[@BIG_B_BRYAN]

Imagine it landed like a bottle flip... 😳

[@real4265]

​@@JacksonWacksonFlackson2016

[@deadsheep1017]

​@@JacksonWacksonFlacksonold meme or not, still would've been cool.

[@JacksonWacksonFlackson]

@@deadsheep1017 I know. I was just messing with him. Sorry man, I didn’t mean it.

[@user-sb2qe2zt3y]

ik I really wanted that to happen

[@marinesole2]

Cringe

[@MaliciousMollusc]

I wish my chemistry class was like this

[@stephenwelch9492]

Notice how fun this is for the students and how excited they are, this teacher makes learning fun for these guys and they're going to remember this.

[@trainnerd3029]

Top-tier teacher right there! Well done, sir!

[@noelsemzelensky9322]

He's taking risks😳😳

[@1432HATAZ]

For those future chemist and astronauts to dream big and inspire them silly man

[@rodrigogomez5035]

Its kinda sad that most schools are strictly regulated with BS. Teachers say that they are preparing us for the real world and thats absolutely false; you need experience to gain experience. Books are nothing compared to physical experience. Doing these science experiments are real life. Scientists do hundreds of experiments to perfect their calculations; their calculations in a book are not what define perfecting the act. FACT

[@IzziedeD]

not many people get excited about science by doing pages of math. people get excited by science by seeing stuff change, expand, freeze, burn, explode, etc. And if it can be done in a controlled way by a science teacher, even better!

[@Menaceblue3]

He's risking his tenured career

[@jdefabs2112]

​@@Menaceblue3no he's not. Anyone can do this. When we were kids we would get a 1l. Pepsi bottle, make about a 1/4" inch hole in the cap, then take the (clean) bottle, put about 2 drops of gasoline (we used an empty eyedrop bottle) put the cap on, roll the bottle to coat the inside and mix the gas around. Then you lay the bottle on the ground, light a match, push on the bottle a bit, hold match the the hole in the cap, let off the bottle (draws in the flame) it'll go about 30-50 feet . Never had one explode or cause a fire if you use common sense.

[@TwstedTV]

I wish I had a teacher like this in science class. I would have paid more attention. 🤓👍

[@daikikaminari6360]

My science teacher did a demonstration like so, but horizontaly and it was the perfect mix of oxygen and methane (or other gas), it sent the bottle really fast between the 2 rows of student tables It was quite impressive, especially the sound it makes x")

[@meyomammawefriends.7106]

This is how you capture the attention and curiosity of your students.

[@evil7011]

And a headache for the maintenance guys every time

[@heeder777]

And the fire department

[@justsomeguymustache]

​@@evil7011dude itd a dislodged ceiling tile. i could literally put that back in myself, not that hars. if a dude got hired to do maintenance and hes complaining because of a fucking ceiling tile, he should not have applied for a job there. simple as that.

[@justsomeguymustache]

​@@heeder777fire department doesnt care because they know this is safe. acetone burns very quickly and at low temperatures, and the classrroom is literally made out of CONCRETE. i dont think you understand all tthe teacher is doing is making it fun to learn and you are just being a douche about it. go ahead and hinder our education further like the karen you are.

[@dischorddynne]

This man is the upstairs neighbor.

[@Zoogor95]

Down stairs neighbour

[@Lemon_Sage9999]

​@@Zoogor95also note the large mass of expanding gas on the floor

[@jackstraw5875]

@@Lemon_Sage9999 which doesnt affect anything under it.

[@Lemon_Sage9999]

@@jackstraw5875 equal and opposite reaction, Einstein. Catch this ratio

[@BureauATF]

​@@Lemon_Sage9999I dont think you understand Newtons Third Law as well as you think you do.

[@jeffwobrak5205]

Just enough acetone to be awesome without getting fired. He knows his shit.

[@highendtrends3508]

We need more professors like this

[@jdawg93]

These are the teachers that spark inspiration into students instead of just trying to get a paycheck. Props

[@careysimpson5282]

This is awesome! The woosh bottle is the simplest pulse jet engine. This is the first time I've ever seen it used for propulsion. :)

[@owllow4014]

Почему "импульсный"? Обычный ракетный двигатель.

[@bronsonstephens5799]

These will never get old for me. I used to love doing this in high school and getting in trouble for it 😂

[@robervar1097]

Imagine the "fails" of the 1960s glass water cooler jugs that didn't quite launch😉. Kinda hoping it went up and stayed in the ceiling 😁😛

[@billdornback9167]

He never got beyond 12 year old curiosity.

[@thomasdemore7972]

This is what makes a kid or young adult realize something they might wanna do when they get out of school/college. Teachers are vastly underpaid and this guy goes the extra mile. We need more teachers like him

[@pcproffy]

Hey, no safety goggles!? 🥽👨‍🔬

[@SassySlayer69]

How was this the extra mile. I agree that teachers are underpaid tho

[@flyingchimp12]

Something tells me this guy does this even at home without students lmao

[@robbzooi]

literally one of the most basic ass first lesson experiments dude, the fuck you talking about:')

[@thomasdemore7972]

@@robbzooi someone is unnecessarily angry😂😂😂. I never said he conducted the most difficult science experiment, so I see your reading skills aren't exactly strong. I said he goes to the extra mile to have a demonstration versus not having one at all. But we'll go with what you said, hahaha.

[@fredericcolombier5380]

The kind of very good teachers who leave you with an unforgettable memory, passionate enough to experiment in class to completely captivate their students. Nice job =) !

[@MarkBowenPiano]

Janitor is thinking, "Blooming heck! Not again. I suppose I've got to get a ladder and put that tile straight now!" 😂

[@MtnBadger]

Thr maintenance crew just *LOOOVES* him. 😊

[@justsomeguymustache]

maintenance crew doesnt care because all thaat happened was a slightly dislodged ceiling tile. wow are you stupid.

[@justfly60482]

We need more teachers like this

[@artoflife6093]

So that's how rockets work

[@ElectromagNick]

Essentially. The longer, physics-y explanation is actually really fascinating, but this is just an awesome small scale practical demonstration.

[@jbruck6874]

Thats why around the time of the Moon Landing no big bottles were left in stores...

[@Peter..Griffin]

Im dumb asf and the way i know it is this: Turbine= take air and throw it faster than you pick it up. Rocket= same but theres no air, so bring your own.

[@justinbieltz5903]

@@jbruck6874makes sense

[@naturefix290]

You can do it with gasoline and a glass mason jar, it still makes a jet like combustion but doesn’t break the glass.

[@187mrsmith]

If science class was like this bro I would have went to school everyday 💀😂

[@brookebrunson1477]

My kids haven’t had a fun science teacher like this in 5 years

[@sydneexxceasy9063]

This is a teacher who loves to teach and make it fun for the kids to see in action. These are those rare teachers we are all jealous we didnt have

[@destiny.cookie]

the principal watching through the door window: 👁️👄👁️

[@xSTONYTARKx]

Your comment is 20 times funnier then many I've seen with thousends of likes. Totally underrated

[@mach1553]

Wish I had a class like this.

[@JoshO423]

I’m grateful to have always had these type of science teachers. One brought in a dozen different of his own farm animals during the biology section. Another during the chemistry portion had us go to swamps, collect methane bubbles in jars & light them in the lights-off classroom. And this was just middle school!

[@_MEGADETH]

Where's the actual speed video??? Lol

[@atjthe2nd]

yeah I thumbs down because It was in slo-mo

[@QCumba]

Play it two times speed

[@atjthe2nd]

@@QCumba Nope, the video doesn't have the option to change playback speed

[@eh6971]

​@@atjthe2ndAre u on ms-dos?

[@cinthrum361]

We set a table on fire in chem my sophomore year of high school

[@southaussiegarbo2054]

Once my cooking class set off the gas alarm Awkwardly i was leaving bc i wasnt feeling well I herd a bell sound Got home Then mum came home and asked y i set school on fire before leaving lmao

[@MrSkeleton14]

Had a dumpster fire in my school not too long ago because some kid put a paper towel covered in a zinc and strong base in the garbage can, it caught on fire and the whole school smelled like fire and plastic

[@pissshit9001]

Damn, we almost got carbon monoxide poisoning because the AP chem class left the gas on.

[@michaelmatthews2759]

I did that too, was great, sams year too

[@railworksamerica]

💀😂😂💀💀

[@KarasCyborg]

Good to know about these things. Kids welding on a acetone barrel or gas tank can loose their life.

[@user-pe587ui90]

High school chem teacher did something similar the Monday after spring break! He woke us all up immediately. Loved his class.

[@barryprince3249]

Now that’s a teacher that actually makes a difference in education!!!!

[@steamer1112]

I'm sure that the janitor was VERY impressed.

[@jordank1813]

Yup, because we should make teaching decisions based on janitors. Should we respect our cleaning and maintenance staff? Absolutely! Should we limit what is done in the classrooms to make less of a mess? Never

[@justsomeguymustache]

janutor? for fucking what exactly??? 0 mess whatsoever. there was only a slightly out of place ceiling tile, grab a stick and move it, its not that hard. stop being so nnegative. you were obviously the kid in school that never payed attention.

[@markbrown8097]

What was there to clean up? Everything combusted.

[@wardragon670]

People are amazing! From demons to angels from truth seekers to cock gobbling

[@americanpaisareturns9051]

Ain’t no kid in LAUSD ever seen this kind of amazing science in the class.

[@Frosty_tha_Snowman]

And when I was in highschool, baking soda volcanos were considered dangerous.

[@CidCidCid]

Had a college professor who made his own liquid oxygen and put some in a bottle and showed how it could build pressure and pop the corks. Then he corked one bottle flipped it upside down and held it til the bottle flew up and did a similar amount of damage to a similar ceiling tile. Epic. College seems long ago now but that memory is crystal clear.

[@BuffaloNickel9]

sounds fun but it didn't do any damage to the ceiling tile lol, hell it barely hit it... I know the fire and propulsion may have looked scary but the tile only was pressed up 5-6 inches then came back down

[@ar3cz3k_]

Boys at sleepovers:

[@jc420og]

Me and my boys just smkke crack at our sleepovers im pretty much already 13

[@D-GAF]

I wish school teachers were this creative when I was in school. I might have actually paid attention lol

[@RepubliKING]

You know science class is the shit when your teacher goes: "Hey brandon, go lock the door real quick" 😅😅

[@KamiEpix]

What fun! He's a good teacher, thanks for sharing.

[@sagenbabin8786]

And that ladies and gentlemen is a pulse jet

[@stijnvandamme76]

no its not.. its a basic rocket.. not a pulse jet at all. a pulse jet has moving parts and a combustion cycle that pulses as the intake opens and closes

[@sagenbabin8786]

@@stijnvandamme76 dude a Valveless pules jet has no moving parts And the jam jar pules jet is a jar with a hole drilled in the lid This is a pules jet Your thinking of the Nazi designed valves pulse jet that was used in the v1 rocket and a couple other Nazi and Japanese prototypes But yes this is a pulse jet

[@genericalfishtycoon3853]

That time the janitor became the substitute science teacher for the day.

[@theyearwas1473]

I hope he kept his job when this got known. We always loved the teachers who might burn down the school or harm us. They were the best classes absolutely.

[@nunyabussiness87]

Bro how has this not blown up?

[@Starkiller3870]

There's either isopropyl alcohol or acetone in the bottle both substances burn quickly on contact but they don't burn the object their on and it basically just propelled the bottle up it's completely safe if done correctly and really fun Note you have to fill the bottle 2/3 to 1/2 full with isopropyl alcohol swish it around to create fumes in the bottle then drain it only then is it safe to light and look up some other experiments like this and correct me if I'm wrong in this comment

[@walter7825]

@@Starkiller3870 im pretty sure you dont need 1/2 a gallon of acetone to do this 😂you only need about 50ml and then you shake the bottle for the alcohol to evaporate

[@Starkiller3870]

@@walter7825 yeah I kinda screwed up on that detail

[@Starkiller3870]

@@walter7825 thanks for clarifying though

[@yunoyukki7344]

There is a way for pressure to escape

[@mairimrrji4310]

Now he is finding that person who selled and fixed that tile 😂😂

[@Krokmaniak]

Taking into consideration that tile next to it was visibly loose even before the experiment I think it's not the first time

[@techaaaage]

Nah bro’s taking that out of his pat check 💀

[@matthewnielsen7394]

Science teachers like this are the best!🧬🧪🥼

[@sageminentjunky5197]

We need more teachers like this man.

[@andymullarx6365]

No.

[@danielcoetzee5793]

Then you would all have graduated idiots with license to set buildings on fire and kill hundreds of people..!

[@spicyspagett]

Pov: Your a student and Walter white never got cancer.

[@The.Original.Potatocakes]

This is the cool stuff I remember from middle/high school!

[@stinkyfinger420lol]

I wish I didn't go to high school in the projects. We didn't get to do cool stuff like this. Instead we had to hide under the desks cause of the drive bys 😅😅

[@kasonf2176]

Gotta respect a teacher like that

[@crazy_pyromaniac]

I want to see this in real time!

[@Risankaan]

The slowed down sound is amazing

[@therealsechs]

I remember my science teacher doing stuff like this in junior high... We need more teachers that show physical experiments for children. It's fun and makes it engaging to learn

[@amourdoctrina9435]

I loved that the H.S. I taught at would let me conduct experiments similar to this (outside)! Kids love being excited and involved in proving an experiment.👍

[@goingoutonmyshield2811]

And lady's and gentleman this is how NASA was founded.

[@Katiedid1975]

Everybody's favorite science teacher, right there.

[@jessp1535]

Great Teacher ! 🙌 Leaving a inspirational print on those students

[@kimberlypascua8020]

Me as a kid: *playing with my mom's cuticle set*

[@nekkoskrilla6750]

Me as a kid playing with anything flammable 🤣🤣

[@maoa-cdh1389]

That was awesome! 🚀

[@javierflores940]

Loved teachers like that, fun and educational! 🙌🏼

[@wikkidklown]

Man I wish my science teachers did things like this in class. I definitely would have paid more attention. Hell even be interested in learning what they taught

[@drakealexander6668]

You won't. I was a science teacher and you will pay attention to the shiny lights and sounds but won't be able to explain what you saw. We would do stuff like this all the time but when we get to explain and show you how it works, you tune out of it. I don't blame you. I blame the short-attention span social media barrage students get.

[@bryanfeliciano4102]

Now that's how you teach chemistry!

[@daithipol]

What was taught here?what was Explained?

[@Accumulator1]

Especially when it is recorded and played back in slow motion to study the chain of combustion. Words on paper are just words of theory but a live demo proves it.

[@gjalabaster6726]

When the janitor substitutes in science class.

[@whitewaveLuff.74]

Darn wish my kids had science teacher like that when they were younger

[@brianboston4744]

This is a real IDIOTIC move inside a building with people.

[@sunw80]

Ok Karen

[@tasa4904]

Considering that a massive fire didn't start, instead of luck, I'd say that proper precautions were taken.

[@Mike590A1]

Calm down karen

[@michaelaroxz]

How and why?

[@rocamahco]

Its idiotic if its done by an idiot... obviously... he is in full control of the demonstration

[@happy_birds5468]

Mr. Walter White aka Heisenberg finally made a nuclear bomb😱

[@morten1]

Making the janitor nervous

[@catherinegilles6408]

Wow! Great project!

[@everettplummer9725]

Propane in a bottle, and acetone on the floor. At work we had 5 gal buckets to soak tools in. Some chêcked out a electric drill to stir resin, when he started the drill in the bucket, the room got white, socks caught fire, and the guy in the door way, got air time. Don't use acetone indoors without ventilation. . .

[@Drake3051]

and the maintenance guy is like **** **** it professor Lex, I'm not replacing another ceiling tile!

[@garfungel3952]

This guy is the reason we have so many fire drills

[@ogstackadollor85]

Office: Hey maintenance we need a tile reset in the science room again

[@pjfoltz8810]

Awesome teacher!

[@annabenedetti9699]

I bet he had a 100% attendance rate - seeing stuff blow up is rather gratifying

[@clayrester9342]

yo, doin that inside seems wildly unsafe.... but it looks so much more fun! hahaha

[@brunominoletti8179]

Felicitaciones y muchas gracias a este profesor por demostrar tanto espíritu didáctico.

[@mcapple1729]

Got to love these types of teachers.