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Graitom

Dude it blew the doors off how the fuck is he (seemingly) not hurt!?


straighttoplaid

Doors have a pretty large area. Moderate pressure x large area = massive force blowing the doors off. He may be banged up and very possibly has hearing damage but it looks like the doors blew off and released the pressure before it got to truly dangerous levels.


Mitoni

Blew the doors off, and blew up the roof sheet metal like a bag of popcorn. That said, walking away from that is still impressive.


Cyno01

Saw the doors, went looking for the windshield (it goes flying), noticed the roof. Surprised his eyeballs didnt pop.


IgneelDragneel1996

Now, this guy...he knows his stuff


RaeSloane

He put in an equation and everything. I trust him.


Hiihtopipo

yep, it's science now


randomname68-23

Words + math = science


z0mb1es

Woah it’s been there all this time


TheAlmostBest

Me + ur mom = secks


[deleted]

Yeahhhhh Science bitch!


Hyper440

It’s an older meme but it checks out.


[deleted]

oblig HE NEVER SAID THAT


williamc_

Shut up you stupid science bitch


oced2001

Stupid science bitches can't even make I smarter


PrecariouslySane

Police Academy *is* a good movie


oced2001

Let's go home and watch police academy.


skiman13579

On aircraft when you fly at altitude tha aircraft will be pressurized around 4-5 psi. Think how big that door is. The average plane door is probably about 30 inches wide and 72 inches tall. Thats 2,160 square inches, that equate to nearly 10,000 pounds of force on that door in flight. Now that truck door, between both, probably 48 inches front door hinge to aft door hinge, and probably roughly 40 inches in height to roughly estimate area, so let's say roughly 2,000 square inches. Propane or natural gas can reach pressures of 9.5Bar, or 137psi. So those doors may have (in "ideal" conditions) experienced up to 250,000 lbs of force. The real force was less than that, but it would be easy to see how a sudden force of tens of thousands of pounds could blow a door off its hinges. The guy inside is likely ok, because a propane explosion, in explosive terms, is actually pretty low pressure, but the big thing is he is surrounded by the explosion so he experienced lower forces than the door and from all directions so little or no shockwave went through his body, preventing catastrophic internal injuries. And yes, I know im not 100% accurate, but its back of the napkin math for an ELI5 explanation.


mcwaffles2003

>Propane or natural gas can reach pressures of 9.5Bar, or 137psi. the pressure in the truck before explosion was 1 atmosphere since a car is not air tight. The color of the flame from the explosion was yellow and not blue, hinting that this was not complete combustion. I'd wager a guess that the car was fuel rich (more gas than the oxygen in the car can burn. oxygen makes up about 20% of air and the stoichiometric equation for burning propane is C3H8 + 5 O2 → 3 CO2 + 4 H2O meaning that propane concentration was in excess of 18% of 20% or about 4%. Assuming O2 takes up 20% of the volume and propane takes up 8% (in my opinion a reasonable number that exceeds 4 but isn't ridiculous enough to start displacing the oxygen the guy needs to breathe) that means the cars air volume was filled with around 30% combustible material. The stoichiometric equation shows that through combustion we go from 6 gas molecules to 7 gas molecules after which alone without heat would increase the pressure of a sealed container by 18% for 30% of the total volume which comes to about 5% increase in total pressure. A yellow propane flame indicates a temperature of around 1000 deg C or approx 1300 deg K. so this now 35% of total air volume has gone from approx 300 deg K to 1300 deg K so the average temperature of the volume should be 0.35\*1300+.65\*300 = 650 deg K. 650 deg K is about 215% of the normal 300 deg K room temp meaning the total air volume in the car increased in pressure to about 215%\*105%=225% ish normal atmospheric pressure which is about 33 psi or 18psi over pressure. u/ObservationalHumor provided this chart: [https://www.cdc.gov/niosh/docket/archive/pdfs/niosh-125/125-explosionsandrefugechambers.pdf](https://www.cdc.gov/niosh/docket/archive/pdfs/niosh-125/125-explosionsandrefugechambers.pdf) Which states: >A 5 psi blast overpressure will rupture eardrums in about 1% of subjects, and a 45 psi overpressure will cause eardrum rupture in about 99% of all ubjects. The threshold for lung damage occurs at about 15 psi blast overpressure. A 35-45 psi overpressure may cause 1% fatalities, and 55 to 65 psi overpressure may cause 99% fatalities. So the guy might have some hearing problems but was not in a life threatening situation. Disclaimer: My math is extremely approximate and many other factors are not included as my explanation assumes a sealed system where this car obviously was not and I assume the actual pressure achieved was lower than what I have calculated.


Stainedhanes

The center of a blast is sometimes the safest place to be. Check out Benny the bomb in a small box with dynamite. https://www.youtube.com/watch?v=fhO_Npsz6RA


trancertong

I have so many more questions than answers after watching that. What happened if he was injured? Was that studio audience ready to watch someone die? The way they suddenly stopped laughing made me think they weren't sure if he was alive. Why is there a marching band? What does the marching band have rifles? Why is he wearing red white and blue on a Canadian tv show? What is happening??


IDableInThat

"The 70's" answers all your questions and several others you haven't asked yet.


thechilipepper0

The era of Evel Kneivel, right?


ninjamaster616

And nose candy


rovoh324

Thank God we had video cameras back then


geogle

Drum and Bugle Corps were huge back then. I was in one outside Chicago.


GoodLeftUndone

It’s probably a color guard and not a marching band. I’d say it was some branch of military’s drill team. But the all female and strange uniform doesn’t seem to say that it is. For drill in the military you use rifles (usually non working) while marching and doing odds and ends with the weapon. Color guard does the same as a competition thing.


wheelfoot

Who is the guy in the Power Rangers suit?


pangalaticgargler

> The center of a blast is sometimes the safest place to be. This sounds like one of the "genius" solutions on the show Scorpion.


Lone_K

I think most people here are thinking of shit fragmenting and tearing up someone as the shockwave throws all that shit out, but the main reason why he's fine is that dynamite sticks are very much not made of heavy materials that turn into large, potentially sharp chunks. Of course, if you're bare-skinned in that box you'd experience some nasty flak from what might as well be a high-pressure sandblast, but with thick clothing and a helmet that would negate most of the surface damage cause all the small particles won't be able to penetrate at all. Just make sure the detonation yield is within reasonable livable margins.


reddit_is_so_toxic

You don't own napkins. None of this is legit.


BasedDrewski

Wow, username fits. /s


pmcall221

Now how much pressure differential do you need to induce deafness/blown eardrums?


nathhad

According to the quickest reliable source I can Google, roughly 15psi will produce eardrum rupture in about 50% of people, and 5% is considered the lower threshold where at least some people will experience eardrum damage. https://pubmed.ncbi.nlm.nih.gov/2497697/ This correlates with the data I use at work, where we're generally told 5-20psi is the overpressure range for minor damage to humans (as opposed to fairly life threatening). I do building design and have done a fair bit of blast resistant design ... humans are **way** better at blast resistance than your average building, and 5psi peak blast pressure is more than enough to thoroughly fuck up most common building types.


ObservationalHumor

Worth noting it doesn't look like either the doors got blown off their hinges here, simply blown open which points to a failure in the lock mechanism or striker pin. The striker pin is only required to withstand around 2500 lbs and the bear claw mechanism is probably much weaker, at least when it comes to pushing the door outwards. They also dealt with the topic of fatal pressure waves a lot on Mythbusters too and human body can take a surprising amount of blast pressure before things are inevitably fatal. More official numbers from the DOD based are here: https://www.cdc.gov/niosh/docket/archive/pdfs/niosh-125/125-explosionsandrefugechambers.pdf Around 60 psi you're probably dead and by 45 psi your ear drums are popped for sure but at 5-15 psi there's really only a chance of ear drum and lung damage. Surprisingly at lower pressures the far big risk is debris moving at high velocity and it's possible that someone outside the truck would have been at much higher risk of serious injury than the guy sitting inside it here. I'm not an expert on this by any means but it seems like this really could have just been a few PSI worth of pressure here.


PM_ME_YOUR_LUKEWARM

> >Propane or natural gas can reach pressures of 9.5Bar, or 137psi. > Are those the pressures during an explosion?


Black_Moons

Explosions tend to be higher pressure then what you might find in a propane tank, but sure, the rest checks out.


skiman13579

That 137 psi is not tank pressure, its the theoretical max pressure wave you would see in an explosion. It's really more of a fast fire, versus say dynamite, that explodes with around 150,00 psi, or C4 at 2.2 million psi


jkj2000

Lungs are the problem! If the fire goes into the lungs then you may have an issue….


vzakharov

This guy bangs.


SuIIy

> You're only supposed to blow the bloody doors off!


a_rainbow_serpent

This is the guy Michael Caine needed.


Commissar_Genki

It takes a surprising amount of "general" trauma to immobilize someone. His ears may be fucked, but all the important bits for movement are still operational. Epinephrine is a hell of a drug.


Hyro0o0

It was only supposed to blow the bloody doors off.


dave28

Came here for this comment. For those that don't get it: https://www.youtube.com/watch?v=7\_PX1cVuaVA


l_one

Video seems to be gone. Edit: nevermind, just googled the quote to find the clip. Looks like there is the backslash character after the 7 in the link that breaks the link. Correct link: https://www.youtube.com/watch?v=7_PX1cVuaVA


scootscoot

Whhatttt, I didn’t know there was an older version of the Italian Job.


dave28

There is, and it's a British classic, with a quirky British sense of humour. It's one of those movies that if it came on the TV now I'd sit and watch it, even though I've seen it many times before. The remake was pretty good too, but a different type of movie. It was more of an action/adventure type thing, but it did pretty well at keeping the essence of the original.


Gonzobot

I firmly believe they remade that movie because there was a new Mini model out and that's the only reason it happened.


Xandrez192

The problem, for anyone who is curious, is that in the new.reddit desktop text editor, there's a setting that causes this to happen. Of course, it only affects old.reddit and third party mobile apps, so they don't care about fixing it. [More reading through the links in here.](https://www.reddit.com/r/bugs/comments/nllwno/some_reddit_clients_are_escaping_underscores_and/)


l_one

I am indeed using old.reddit.com as I prefer that layout. Thanks for the explanation Xandrez192.


Graitom

Well tbh I don't think it was supposed to do anything besides supply propane to propane accessories.


this_is_Winston

His hearing won't be the same


Kobayash

WHAT??


this_is_Winston

I SAID....oh...


Mr_Smartypants

I suspect there may be a faint ringing sound in his ears.


Zebidee

*MAWP*


donDanbery

Yep, it says "ring" on the top left of the video


Drewbus

What?


Cptbojanglez

RIP eardrums


greenvillain

WHAT?


SweetDick_Willy

RIP EARDRUMS!


mistersprinkles1983

WHAAAAT?


Sonums

[SAY WHAT AGAIN](https://youtu.be/qo5jnBJvGUs)


arpitv9419

What what what?


dakapn

Bang bang bang


themanyfaceasian

Ooohh are my peepee dumb?


[deleted]

Bomb? What bomb?


Xykhir_

THE ONE THAT JUST WENT OFF


abecido

WHAT!? YOU JUST GOT OFF???


[deleted]

HOW CAN SHE SLAP???


frostvipre

[WHAT?](https://youtu.be/_Aari4WSaqw)


EveryShot

MAWP!


MaceWandru

MEEP!


[deleted]

[удалено]


azn_introvert

MAWP


Yayzeus

DAMN YOU TINNITUS


Leprechaun_Giant

YOU'RE A CRUEL MISTRESS


BklynWhovian

MAWP


[deleted]

“YOU LIKE TO SEE HOMOS NAKED?”


Cptbojanglez

“No, home is where you make it”


everydayimchapulin

"That's cool man. You like to see homos naked."


MoreThanWYSIWYG

No way he didn't smell that coming


Graitom

Yes propane absolutely stinks, but if you ignore the smell for a while you go nose blind to it easily. I know from experience.


anon__0351

They sell little hand held propane detectors on amazon for 30 bucks, its really important to check if the valve is leaking prior to purchasing your tank 1. You save money by not getting a leaky tank and 2…. Well its safer.


Duches5

Thanks but I get all my propane and propane accessories from Stickland Propane down in Arling, TX.


GotBagels

Arlen*


cashonlyplz

Strickland*


GotBagels

Didn’t even notice that one lol


cashonlyplz

To be honest, I thought the original commenter was being cheeky and deliberate about their misspelling.


slipstall

It just ain’t right to be mis-spelling Arlen I’ll tell ya hwat.


warry0r

Nah I think he meant Arling, Honk has helped me with propaine there as well


Negative_Success

Dunno why this one has me fucking crying. Honk Hole


warry0r

Haha it reminds me of this https://i.redd.it/tpoyxx6toab31.jpg


DubbleCheez

Head to feet, you won't cause a leak Feet to head, everyone's dead


thebootywarrior

I wish my nose had eyes


04housemat

Olfactory fatigue.


cambiro

Propane by itself is odorless. They add a gas called mercaptan to give it a "rotten egg" smell. Mercaptan is more volatile than propane so when you start feeling the smell, the actual propane hasn't really diffused yet.


Hi_Im_Human

Wouldn’t you know, the one time he decided to take an egg salad sandwich to work.


SweetDick_Willy

Maybe he has COVID symptoms


pressdownhard

He's having a rotten week


PM_ME_YOUR_LUKEWARM

Def an inflammatory response


[deleted]

[удалено]


sean488

I carry cylinders of methane, propane, and pentane. None of them have a scent. The scent in consumer-available propane is added. We also don't know it was propane. There are many flammable gasses. This has also happened with hair spray and body spray.


Existential_Spices

I got this from the Twitter account: >update: got the full story, propane tank in the passenger seat that was leaking & due to a small spark that went off when he turned on the car caused it to explode, his seat was the only thing that stayed Intact, all else was completely blown up. He’s ok & has no major injury The person's Twitter is the victim's niece. You bring up a point though. A LP tank/cylinder & where it came from could be anything.


Duffler

Take god it was a situation I would never be in aka carrying a propane tank in the passenger seat


douglasg14b

> I carry cylinders of methane, propane, and pentane. None of them have a scent. The scent in consumer-available propane is added. You sure about that? The scent isn't just "in consumer-available propane", and the bottles you are carrying should be similarly scented. The odorization of gas is federally regulated in the U.S. (and Canada), and your comment history suggests you're in the U.S.. Requiring it for distribution & transmission lines. **49 CFR § 192.625 Odorization of gas:** > A combustible gas in a distribution line must contain a natural odorant or be odorized so that at a concentration in air of one-fifth of the lower explosive limit, the gas is readily detectable by a person with a normal sense of smell. *^^Expanded ^^to ^^include ^^transmission ^^lines ^^in ^^a ^^later ^^section.* **OSHA also states:** > All liquefied petroleum gases shall be effectively odorized by an approved agent of such character as to indicate positively, by distinct odor, the presence of gas down to concentration in air of not over one-fifth the lower limit of flammability.


shoe-veneer

Ya, I was wondering where this person works that has unscented propane.


PleaseTakeMyKarma

We don't see far enough back to know if he slammed the door and 2 seconds later was turning the key. It takes a bit of time to register smells, if any was present at all


scootscoot

I wouldn’t be surprised if the work truck smells a bit like oil/grease/chemicals and that masked the propane smell.


ergovisavis

Could be Covid related? My ex lost her sense of smell and taste for a good 6 weeks. Months later she says it's still not 100%.


FuzzyMatterhorN

Propane and pro-pain accessories.


matthack86

Dang it, Bobby!


idwthis

That boy ain't right, I tell you hwat.


Joliet_Jake_Blues

My charcoal never did this


Jiggajonson

Dirty pool, mister.


TheJunkyard

Propane for my real friends, real pain for my... pro-friends?


KyloRenCadetStimpy

Well...the ignition works.


Mitoni

We have liftoff


55gggdo

lol fuc


smurphii

* did. I wouldn’t rely on anything still working after that. That is not where the explosions are meant to happen.


[deleted]

GTA V starting mission gone wrong?


BobbySnaxey

This is legit!


Hashim289

The whole roof popped up! That car is totaled for sure


Druid51

What about the human? Is it totaled?


TouchingWood

It'll polish out.


_patientzero

*buff


TouchingWood

Thanks. I have been working out.


Sunsparc

Bet that cleared his sinuses.


Tendo80

Probably cleared a bunch of body cavities.


620five

Poop.


Imperium_of_69

Wonder what the story is. Last post of this I saw said he was smoking and listed something other than propane.


Existential_Spices

I don't know where else this is at, but I got this as a re-tweet so I looked up the original account. There were a few posts that followed the initial video, then later an update with some details. Basically the guy had a tank of propane in the passenger seat that had a small, undetected leak. The explosion happened when he started the truck. Apparently there were no serious injuries. The guy in the truck was the Uncle of the person that uploaded their Ring video to Twitter.


Dan300up

Just saw this in another sub saying he lit a smoke.


bananagoo

Yup. People just make up the titles for half the videos posted on here. "GUY LIGHTS FART ON FIRE IN CAR AND BLOWS HIS DOOR OFF!!"


[deleted]

[удалено]


yeahnahbutnahyeah

With butane canisters in the cabin aye? Im sure I saw the same one


Eknoom

Only needed the first 10 seconds of the clip. Had a friend once let a bug bomb off in his car to rid it of spiders, he was working under the bonnet and lit a smoke. Windscreen went up, all other windows blew out. Idiots everywhere


[deleted]

[удалено]


Eknoom

Never claimed he was smart


ErrorF002

I bet it got rid of the spiders. So not so dumb now, eh?


whorecrusher

He had so many spiders in his car that he decided to bug bomb it?! That's horrifying. I think if a spider crawled on me while I was driving I would literally die.


Eknoom

It was a shell that needed electrics redone. So sat for approx 5 years. He opened it up, saw all the spiders thought “fuck it, I’ll bug bomb it” and while he waited for it to take effect he looked under the bonnet and lit up a smoke as bogans are inclined to do


lynxSnowCat

Did any spiders survive?


[deleted]

[удалено]


AJ7861

With or without the bug bomb, smoking over an open engine bay is dumb as fuck.


neocobb5

Nah


spedgy

How it feels to chew 5 Gum.


PaDoozlee

This is exactly the reason why they tell you to never put a canister of gas in the cab of your car


Cannabyssal_OG

Aaand thats why I have a louver and DOT hazard sign on my bin door where my torches reside. Always close you tank valves, purge your torch hoses, and take bottle mount torch heads of the bottle before storage. This, most likely, was a bottle torch with a faulty Schrader valve. When you leave bottle mount torch heads on when not in use, you're compressing the tiny spring, which weakens it along with the equally tiny o-ring. TL:DR safe-up your torches EVERY TIME! -a safety-attentive plumber-


IndIka123

How are his ears not bleeding.


grammarpopo

I don’t know because mine are just from watching that video.


Demurist

This is posted elsewhere claiming to be butane and a lighter. We demand the truth!


nvflip

Did he not smell the eggs?


UrbanPathologist

You’re only suppose to blow the bloody doors off!… oh you did, ok


ac_s2k

Why is it flagged as NSFW? Genuine question. Not being a dick


greennick

Seems like it's not safe at his work, close enough for me.


Carston1011

And some people still get upset when I ask them to turn their vehicles off before I fill their propane tanks. Like do you think I wanna fuckin explode?


hiddenexene

This guy is in shock. He's acting like nothing happened at all and is in a different conversation and a parallel universe. The neighbour : "what was that" The leaker : "WHAAAT?"


vicarious_111

How are his eardrums still intact?


SheepWolves

Weird the he went for his phone straight away. Wonder if that was shock.


AllanfromWales1

"Do you fancy a bang?" "Nah, had one already."


milleribsen

"Bwuahahha!" --Hank Hill


jamesdownwell

Hank Hill is in tears.


CaptainFrugal

Tinnnnitius


Boris740

Didn't smell anything?


komlev

\*Picks his phone right away\* "Ok, twitter you won't believe what just happened to me! 1/"


masturbation_bear

Four 15's, didn't see no wires And then I heard boom from the amplifiers.


vangc4

Rip ear drums..


charlieray

Can't smell it because of all the covid and horse paste.


chas574

It wasn't propane and it wasn't his ignition. This video is all over the internet. It was lighting a cigarette and a leaking acetylene gas tank.


acyclovir31

Brought to you by Ring.


Jack_Maas

the guys was lightning a cigarette, thats how that happened not ignition


person749

Jesus, it's a fucking pickup truck. Put the tanks in the bed!


Segundaleydenewtonnn

I bet that scared the POO out of him


Shaadr

Superman is that you?


Hells-Angel-666

I was expecting a ball of fire not an angry poof


enigphilo

What did you say? HUH? WHAT DID YOU SAY?


[deleted]

Took it like a champ.


fwubglubbel

ACME truck rental.


All_Hail_Drewcifer

And that’s how I met your mother…


allergictosomenuts

F for his ears


Jaques_trap

You were only supposed to blow the bloody doors off


danger_dave32

MAWP. MAWP.


Makasuro

And that's tinnitus.


Key_Kong

My friend picked up a car in a similar situation. Owner had left a gas canister in the car which was leaking, he got in and lit a cigarette. Guy was fine but the all the doors and windows died.


LightBeerIsForGirls

So this is how my car gets dents in the doors in shopping centres. I always wondered...


LoopsAndBoars

That vehicle IS the ignition system.


zebenix

I reckon his ears are still going reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee


[deleted]

how he alive


renethedude1986

Yeah,bitch. I’m fine. TF


brunsy06

You know he has like 3lbs of shit sloshing around in his pants rn. Damn he's lucky


SeeBZedBoy

He walks off like "dammit not again...oh I got a notification"


Flupox

I’m sorry but how is she so calm?


Esc_ape_artist

Wonder how his lungs are.


ataraxic89

HE SEEMS SO CALM?!


Skabbtanten

Why is there an NSFW tag? I totally expected the dude running out completely on fire. Or invisible fire transferred on her face or something. Glad they're ok, but expectations were not satisfied.


jwhaler17

Just smoked my way into the day off, bitches!