How Do Airbags Work?
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- Опубликовано: 30 апр 2018
- Check to see if your car is part of the Takata airbag recall: www.nhtsa.gov/recalls
If you’re in a car accident, you want to be sure your airbags protect you. And they work because of chemistry, with some physics thrown in. This week on Reactions, we’re talking the science of airbags. And remember: Airbags are meant to work in conjunction with seatbelts, so buckle up!
[Pinned comment: In the aftermath of a crash, you might notice a puff of white powder and a funny smell. In older model cars, that’s cornstarch or talcum powder used to lubricate the bag itself, but in more recent vehicles, it’s the actual byproducts of the airbag reaction.]
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Credits:
Producer: Sean Parsons
Writer: Alexa Billow
Scientific Consultants: National Highway Traffic Safety Administration (NHTSA)
Sources:
• How an Airbag Sensor W...
www.chemistry.wustl.edu/~edude...
www.scientificamerican.com/ar...
www.thoughtco.com/history-of-...
web.bryant.edu/~ehu/h364proj/s...
www.consumeraffairs.com/news0...
paleofuture.gizmodo.com/a-bri...
www.nhtsa.gov/equipment/air-bags
www.quora.com/Why-do-airbags-...
www.popsci.com/how-airbags-ar...
pubs.acs.org/doi/abs/10.1021/...
cecas.clemson.edu/cvel/auto/a...
Ever wonder why dogs sniff each others' butts? Or how Adderall works? Or whether it's OK to pee in the pool? We've got you covered: Reactions a web series about the chemistry that surrounds you every day.
Produced by the American Chemical Society. 
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Air bag saved me. I'm so indebted to all those wonderful people who contributed to the development.
did you marry the air bag?
michael regan I know airbags save us when crashing our cars I know you do not want to get hurt
@@worlds1qwopfan93 an airbag saved my life
Dunno if you guys gives a shit but if you guys are stoned like me atm then you can watch pretty much all the new movies on InstaFlixxer. Been binge watching with my girlfriend lately :)
@Chance Trace Yea, have been watching on Instaflixxer for months myself =)
I had a bad crash earlier today, We rolled 2 times and the airbags saved me and my mums life.
ur cat seems happy about it
@@leahcalabrese2144 is everyone here only because u crashed ur car and ur airbags deployed and SAVED UR LIFE!
Why would you write something like this in the comments. ? Like why ?
Your mom need to learn to drive
Zabair Ghafoor Because you’re a 50 year old man and your hairline is receding.
Airbag just saved my life today. I'm so grateful for this technology that we all take for granted everyday until we need it.
At my collision repair shop, I had a collection of real deployed airbags. Each one was cut from the steering wheel of a hard head on collision. They were framed and hung on my office walls because each one had a womans face in full makeup smashed into it. You could see all the detail like blush, eye liner, lipstick, ect.
Even the surface of the bag was somewhat stretched into the shape of a face.
My customers loved it because it was art taken from real life.
You know what they say, underrated comment
I was in a car crash today and the only thing I remember is the popping sound of the air bags. That was scary!
i couldn’t hear anything, i just felt it really bad. i was just like “welp this is it” before my mom said “NO NO NO NO NO” i wasn’t sure anything was gonna happen. i thought she was going to slam her breaks. its like i blacked out or something
My seatbelt and airbags saved my life. I’m so great full. Please always BUCKLE UP!! ☺️
grateful *
Thank you for saving my mom from that crash
thats ok
🙏
watching this while driving, now i know what comes next
um u gud bro
lmao good one
Lets goo same
I am so thankful for airbags. Saved my life and my dads.
🙏🙏
Good story!😃
the genius of airbags are so overlooked!
You forgot to mention how loud these things are... On the decibel scale:
thunder clap: 120db
shotgun: 160db
.357 magnum revolver: 165db
airbag: 170db
cannon: 175db
rocket launch: 180db
People have had permanent hearing loss from them (better than permanent face loss though)
Air bag saved me two days ago… never been in a wreck before in all my 32 years… I don’t know if the impact or air bag knocked me out but all I saw was black for what seemed like 2 seconds. I remember hearing my daughter screaming and I opened my eyes and the air bags were already deflated. My daughter didn’t have a scratch on her and is perfectly fine. I’m not doing so well though, I have a bad ringing in my ears and a head ache that won’t go away. My mom is coming to take me to the hospital. The guy who hit me was doing 55-60mph in a 35 mph zone… regardless of all that, I am 100% sure that the airbag saved me from dying or being gravely injured…
Damn.. are you feeling better now tho and no lasting effects?
I’m so thankful that my airbags went off last night. My car was totaled. We made it out with a few bruises and scratches. They were speeding over 60, we were going 20. Me and my bestie wouldn’t be alive without it.
Thank you to all the great engineers who designed this technology. I owe them my life
First time I've ever had airbags deploy in an accident was today. I didn't go out, but the pop from the airbag gave me tinnitus briefly and my adrenalin was pumping hard! I've been in accidents where I went unconscious (skateboarding, vehicle) and know the feeling pretty distinctly- black out, groggy coming to. I looked at my phone for a second to check the time and was in the back of a car almost instantly. Hit, knew it was going to be bad, a white mass comes towards my face, my face goes towards it, I smell rank butt smell (thought something may have ignited but it was the smell of the airbag), jumped out of the car instantly, went to check on the other driver, called 911. It was a whole event. My face is slightly stingy now (felt nothing on impact) but I am confident I avoided a major head injury or death thanks to that white ball of fluff that caught me in my moment of need. I mean, I avoided a concussion and probably would have had a bad brain bruise (no bueno) otherwise. Jfc I love airbags!!!
I was in an accident where all the airbags went off and I’m glad they did! I don’t remember the airbags inflating bc it was so fast! My ear did get bruised by the side curtain airbag but I’m so thankful that was the only injury from the crash!
Last October I hit a deer in my 1997 f150 both airbags went off I was going 60mph the initial airbag deployment shocked me it’s like getting flash banged and I went off road and hit a tree after that but my truck was surprisingly salvageable I fixed the damage and I still drive it
What about the deer
That was very insightful !
It's a good thing that sodium azide was also reacted to make non - poisonous compounds.
I retrofitted a 'DIY airbag' into my vintage Ford Mustang (these cars were made in the days before airbags were standard feature in motorvehicles). The propellant used was nitrogen triiodide. I only closed the door and the airbag went off! Not only that, for an entire week my face was covered in purple iodine sublimate from the decomposition of the nitrogen triiodide; a facial scrub with dilute sodium thiosulphate solution eventually removed the iodine. Back to the drawing board.........
So you were trying to get the role for Thanos but didn't make it. 😜
tuff luck
your channel is Great !! it's always easy to understand hard looking things and Your topics are also Good !! 💝😊
Hey--thanks! We appreciate the kind words and try to do what we can 😉
Looking for Future videos 💝💝
😊
i know it is but what is u
They might be newer, but do those formulations have a funk hit named after them like Tower of Power’s “Squib Cakes?”
Love the vid man
I was in a head on collision yesterday if it wasn’t for the airbag I’m not sure I’d still be here. The only injury I have is a fractured wrist
THAT BEAUTIFUL CAR THEY USED WTF
Great video - thanks:)
Great vid
Had an F350 run a red light and hit me in the driver door of my mustang. It was the craziest thing seeing the truck driving straight at my face the split second before the crash. The next thing I know I'm surrounded by airbags. Curtains, dash boards, seats, all over the place. Luckily I walked away uninjured just a little bit sore and some glass cuts.
Airbags saved my life yesterday..
The background music sounds like "The Office" intro tho.
Azide is a potent inhibitor of mitochondrial respiration that blocks cytochrome c oxidase by binding between the heme a3 iron and CuB in the oxygen reduction site.
Well yes, but nobody is ingesting that. Unless they have issues and find eating the contents of the airbag a worthwhile pursuit.
demo is clear so many doubts
english love
Only 45,000 lives? I thought it would have been way more than that.
be grateful
But probably seriously injured or killed just as many, due to people not holding the steering wheel correctly or looking round when it went off.
@@BlatentlyFakeNameI find that unlikely. It is true that airbags have caused an increase in the number of serious injuries simply because the airbag made the difference from death to serious injury
@@grassytramtracks If the airbags goes off when you have your hand over it, you'll punch yourself in the face at 200mph. That's why cars with airbags have hand "grips" either side of it. That is where you are meant to hold it.
People have to have limbs amputated after airbags go off on them.
Lol As the video started to end I started to think about my Honda and its recalled airbag and then you mentioned it. Ironic.
Nice
Thanks to engineers who made such technologies to save lives.......🥰🥰🥰
The airbags main purpose is a Head and Neck device to combat basilar skull fractures. Which is where your body is seat belted the head is not. So the car stops, your torso stops, but your head keeps moving at the velocity you impacted at. The brain is tied to the spinal cord that carries electrical signals down your spine. It is very strong almost like carbon fiber and in a crash the head skull/skin will keep moving forward the spinal cord is anchored in the seat belted torso so the spinal cord attached to the brain will restrain the brain. The brain gets turns into a battering ram and it causes basilar skull fractures or (Base of skull fracture) because the brain gets yanked into the base of the skull at a high velocity. Almost like a sling shot shooting your brain. The brain it’s self gets turned into a deadly weapon.
Airbag saved my family
Just saved my life. Way, way scarier than a crackhead.
And here I am wondering where the steering wheel goes when the airbag opens. Does that break into parts or like fly away into infinity? I'm talking about the middle part where usually your horn is
Truck Driver Skeeter it rips in half basically. If your vehicle isn’t salvaged after it’s just a matter of repacking and putting a new cover over the airbag
On the 2012 ram 1500 it hinges up. The airbags shears the bottom of the fancy plate from the steering wheel and the entire piece flips up behind the airbags then settles back down after it deflates.
0:54 So where exactly does the airbag come from? The slot between your dashboard and glove box?
ur mum
From the driver side, it rips through the center steering cover where the horn button is. Passenger side, it rips through the dashboard.
Man wtf, I got into a car crash where this guy passed a red light at 180 mph. My car did a 180 and the airbags didn’t go off. Luckily I wasn’t hurt and had no injuries
I was rear ended at 35mph and bag didn't deploy. My neck and back was sore for a week, can't imagine at 60mph.😵
Dang--glad you're okay.
Seeing this reminded me of how many drivers I see driving with one wrist loosely draped over the top of their steering wheel. If their airbag ever deploys, their forearm, wrist and hand are gonna smack them in the face at between 150-250 mph!
The air bags saved my life last night
in kenya we dont have airbags we die like real men
i can’t tell if ur joking or not 😭
LMFAOOO
I always wondered how plumbus's got made 😂
0:56
Wait, but where does it come from? Does a piece of the steering wheel detach so the airbag can get out or something
i always wanted to know ...I was thinking what if that piece just hits you in the face lmao
I was thinking about that, but 1:48 explains a lot
@@Red4350 the front cover of the steering wheel comes flying off because the airbag punches through it
The front plate either comes flying off or splits.
Source: last week,
I saw it first hand.
Airbags save lives and kept my face from being destroyed.
I was in a crash the horn area of the steering wheel rips and airbag goes through
I know
Its just not imaginable how that is possible within 50ms !?
I like this vidio.
dis vidio gibs me happi
the real question is, how does it open. does it just fling and hit ur face because that would be epic
Had a crash on friday the 13th. The airbags made me loose my hearing for 50 seconds and black out when our car were getting totalled in an accedent because of a drunk person going about 80 MPH down our main rd. But they saved me and my moms life. My moms arm is broken because of an airbag
is it air bag is automticaly work on sudden accidntal..
maybe ill be able to answer that if u spoke english
What happens to the plastic piece of the steering wheel? Why doesn’t that blow off? Must have really strong hinges I guess
An airbag saved my life
Mashallah chemie einfach LIEBE
Though its funny that the airbag kick boxs you
2:07
Oh man..
Seriously, do it !!
நன்றி வணக்கம்
Inside has a ball bearing so it can deploy.
Inside the airbag has a ball bearing so it can deploy
@@user-bw6lq7nr5i m8 u replied to ur own comment tf
Here after a almost deadly crash
Who the fuck destroys a beautiful antique car like that
The first generation airbags were inflated with ultra toxic hydrazine and nitrogen tetroxide explosive reaction. Fortunately, those chemicals are long banned from automotive air bags. The combustion trace residue of these chemicals was just as toxic, 100% carcinogenic and was a real threat when fire fighters needed to rip the bags to make extracating the injured easier.
How to survive. Just wear your damn seatbelt
Me and my dad were in his 1000 bhp gtr put the accelerator down lost control slid down a ditch into a barrier and the airbag for the passenger went off and saved my life i was injured tho );
Remember the character in Final Destination who got killed because the airbag inflated and there's a stake right behind the head rest of the driver's seat? Good times... good times.
If you manage to choke on an airbag, can someone use another airbag to perform heimlich?
…what?
ME TO IM SO HURT REACTSHON
I hate seeing that vintage car getting destroyed
????
Who else was just curious??
Me hiting a cow and airbags don’t go off with wife and child in the car
I just got into a car crash today
did the airbag save u
The Lil Bin obviously stupid
It didn’t come out in my car
IF YOU'RE AIRBAGS WITH THE HACKING IN A SEPARATE
The airbag helped my braces not to get shoved into my cheeks
My aunt & I were hit by a drunk driver on Sunday & the airbag & I collided & my sternum is fractured. I feel like I been hit by a Mac truck. It knocked the wind out of me.
Airbag
Its PV=NrT
@highlander723 Yes, that is the ideal gas law. Boyle's law is closely related to the ideal gas law. P1V1=P2V2. It shows that pressure and volume are inversely proportional. Gas molecules collide with the container wall at a faster rate and raise the pressure, when the container volume decreases.
Yes, but if you hold N and T constant (as well as the already constant r) then you can abbreviate them to an arbitrary variable "k". This allows you to to consider changes to volume (of the airbag) with respect to pressure, and vice versa. (also it is it's for it is and its for the possessive form)
Why the hell did I get burn by mine ?
Mine burned my thumb. They’re blown up by hot gasses after all.
Better then hitting the steering wheel and breaking your face
Do those crash test dummies have wet paint on their heads?
Is an airbag _necessary,_ though, if one wears a seat belt?
yes, human body works like dense jelly, it bends aroud the seatbelt - legs and head fly forward, while torso is barely fixed in place. Thats why your cervical spine is rekt after a crash, you pull all the muscles and ligaments on the back side of your neck - whiplash its called. If airbag wasnt there, you would brake the wheel with your forhead. Plus in severe crash front of the car is getting deformed, so its moving towards you.
Necessary? Not necessarily. For decades humans survived vehicular collisions not only without airbags, but also without seat-belts. However, following the implementation of either and/or both...survival rates have increased. So not only are chemistry and physics important, but statistical mathematics as well. Or you could just walk/bike everywhere.
@@Thwapwhacket before decades the speed of cars were much lesser than today.
educate urself m8
Yea. I had a '90 without airbags and it Dislocated my shoulder and stretched out the ligaments. I had to have surgery later
Fact: NEVER let children on the front of the car kids could be killed or seriously hurt by the air bag because it could explode right out and it would cover the child’s nose
For lifting 200k
Dislike: doesn't explain what the material of the bag is. How come it is so strong? etc.
What people want to know is how it works not learn about chemicals
actually ur wrong
That smell of airbags...
My airbag light is on......
My car dont even have airbags
And people like me tear them out of their cars lol
I fucking knew it worked with a metal marbel
would of been nice to know that stuff was old school before i went ahead and wrote 400 words on how airbags work ffs
ey!!! y'all wasted a 59 Impala all for a crash test 😭😭
background music is a major distraction and annoying.
First
I don’t want to learn to drive now
If a car goes off a ledge into a body of water at a decent speed, 20-30 MPH, would an airbag go off?
Not sure about all situations but not necessarily. My first car accident as a new driver, I was driving in a heavy Midwest rainstorm and hydroplaned off the freeway (~60 mph), down a steep slope and into a lake. Airbags didn’t go off.
@@ABitAmiss how new was the car? Modern cars don't deploy airbags in every Situation. Some even measure the weight of the driver and then decide if it's safe enough to deploy airbags.
@@lucariolps277 Interesting, I didn’t know that. It was a 2002 or 2003 Chevy Impala.
@@ABitAmiss hmm can't find anything about the airbags on that specific car but Yeah modern cars can do a lot of interesting Tricks with their airbags. For example a lot of cars measure the weight of people in the Front seats. If the weight is too low, the Airbag will be turned off. For example, you have a child in the Front passenger seat. That would cause the board computer to turn off the passenger side Airbag. Or certain cars only deploy airbags on required sides. Let's say in a roll over, only the side airbags deploy.