Hands on History - Bulletproof Glass
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- čas přidán 8. 09. 2024
- Standard Bent Glass was featured in a 2003 episode of this History channel program. Take a walk through the SBG facility in Butler Pa as we show you how bullet resistant glass is created including a stop at the original brick kilns to showcase how bent BR glass is made.
Dropping that pane of glass from vertical to horizontal onto a sub-inch layer of air was, well, just ingeniously amazing.
I wonder how they figured out they could do that lolol
When the History channel was worth watching.
Before when we could socialize with others
Yiannis Mantheakis - Ain’t that the truth!
👊🏽👊🏽
@@aldowells9066 what is wrong with you. Seriously?
Make the History channel great again.
That was amazing and now learning that Henry Ford was first to use laminated glass was awsome, knowing that Ford's family came from here in Ireland 🇮🇪
I own a glass company, we replace glass in windows, we do table top glass, frameless shower enclosures, etc.
First, the furnace the laminated glass goes in is a vacuum furnace, not a pressure vessel. It pulls a vacuum to get all the air out from in between the glass pieces.
Next, when they setup the 3/8" glass to shoot it, he said "3/8 glass is what you'll find in your home" seemingly referring to windows. Most windows are actually 3/32 thick glass, or should I say 3/32 thin glass!! 3/8 is 4 times thicker than 3/32 glass. 1/8" is common for windows also.. I'd say it's 50/50. The only 3/8" thick glass you'll find in any home is the shower enclosure. Other than that... great information!
Michael Boyer it appears their autoclave is different in that they are pulling vacuum on the bags around the laminated glass while the pressure vessel does provide pressure to squeeze the bagged glass with more force than just atmospheric pressure would allow.
Bret, you're right. Mister Glassman give a s*it about physics.. ;)
And -1 bar at sea level is higest negative pressure what you or anyone can create. Kind of "negative absolute pressure". So If you need more force, you have to add positive pressure outside of that "bag". That laminating technic is nice brainchild.
@@jannejohansson3383 hi Jane, it's nice to have a female in a technical conversation! I have never seen the type of process where there's a bag and you can manipulate pressure inside the bag, which is inside the furnace. Really cool! So thank you both for that info! I was wrong! And I do care about physics. I'm not sure what misled you, but you were definitely misled about that:)
And, it's technique, not technic. Are you Russian? Or Mongolian? Thanks again!
In real measurements 3mm is thin cheap glass and 5mm thick is the good stuff. 4mm and laminated 6mm are also used.
@@maxmackinlay618 3mm = .183" which loosely equates to 3/16 which is far from this cheap glass. 5mm = 0.197 which isn't available on the United States. We have 3/32 (0.09375") and 1/8" (0.125") and 3/16 (0.1875) and 1/4" (0.250) and 1/2" (0.500)
A more comparable test would've been to have standard non-laminated glass of the same thickness as the bullet-resistant glass.
you dont know, you're not master of the world.
@@6Diego1Diego9 what? He was just saying that comparing a normal piece of glass that is the same thickness as a sample of bullet-resistant glass would be a more accurate test.
The non laminated glass could lose material after being shot at as a result of breaking. The laminator help to hold together the Brocken pieces of the glass after being shot at..
The moment they let the huge sheet of glass free fall...
That feeling!
Yeah, and that's safest+easiest way to do that.. Google says "Making bread is the easiest thing to do", but I'dont confirm :p
@@jannejohansson3383
There is that feeling like you are looking down from the edge of high building when you are afraid of height.
I liked bread.
I remember making this back at Viracon, in the 90's and early 2000's. Bullet proof, and resistant. Used AG .015 interlayer. UL and non Ul rated.
Interesting process!
Pretty cool.
Ron is the best home fixit man.
This reminds me of the star trek movie when they traveled back in time and introduced transparent aluminum to that timeline.
We have it now, check Goggle or DuckDuckGo
@@presleyfunk4362 I know, I've seen a couple videos on that and each one made me picture scotty talking into the computer mouse.
Awesome show, thanks.
Interesting process.
I wonder how the different levels of glass would withstand medieval weaponry like vs a crossbow
If you knew how they cut that bank glass you would be astonished.
When they mounted the bullet-resistant glass and shot it I noticed that they put the curve of the glass towards the shooter. Did that make a difference to the resistance of the glass rather than putting the curve of the glass away from the shooter?
I'm not an expert on bulletproof glass but having worked in the automotive glass industry for 10+ years I can say with certainty that a lot of a vehicle's windshield strength is due to the curve facing outwards. If something were to hit it from the inside it would break a lot more easily. There have been quite a few instances where I had to do a replacement where the rear-view mirror was accidentally hit with a head or hand which caused the windshield to break from the inside. It's all about how the force is distributed through the glass due to its shape.
I suspect so. Some helicopter canopies that are rated for small arms fire will break if you drop a wrench from the inside.
This is why armored vehicles usually have alot in angles adds strength and can keep the round from hitting straight on and deflect it
Slick...enjoyed this.
A 9 mm revolver ? Most 9 mm do not move 1200 feet per second . A 357 Magnum average is 1250 per second . But it's the weight of the bullet times the speed gives you power . Do you want to impress me make it glass strong enough to stop at 44 Magnum that would be impressive
They have glass than can stop .50 bmg
I wonder how many people have walked into something in this factory
The process for laminating the glass is the same as the process for laminating the composite structures that are replacing aluminum in aircraft.
Think AirBus 380 (?) most of the fuselage is laminated composites of fiberglass and resin. Helicopter blades are made exactly the same way.
6:04 420 SAND PAPER??? Where can I get this?
Well, it's pretty cool!
Cool video
I kept thinking, "get your thumb down" while you were shooting. I'm a firearms instructor and shoot mostly semi automatics.
@FUCK TRUMP What, you dont like guns ?
Yea Butler pa.
Strange no one's wearing a mask in that factory. I wouldn't want to be breathing in dust/glass particles.
Laminated glasses was an accident
What why were they an accident?
Bullet proof glass in a bank or a plane varies a great deal.In display various rounds are in display in various thickness of the glass.A w.w 2 bomber was not invunerable to 20 millimeter or 30 as such shot down too often.
I have a question: If you fired the gun several times in the same place where the 1st bullet hit the glass, what will happen?
Glass cracks/breaks each time you shoot at it, and every next shot will crack/break it more and more till eventually all the layers crack and bullet can penetrate and make a hole.
Thanks that was cool
He sounds like Brent Spiner (Data) from Star Trek: Next Generation
11:54 yeh that gun is straight up just chilling in the dudes face, lol don't accidently hit the trigger boy
No, there was an offset.
17:10 how the heat doesnt melt the plastic bag in which the glass is put?
Wait until transparent aluminum hits the market, lol
@@mweb1 No one said you should eat it, or have it surgically implanted, but I bet it would be a lot lighter than how they make bullet resistant glass now.
Flat earthier alert at 10:59 “The assembly line was so long that it factored in the curvature of the earth.”
lies ,its flat I tell you !
You guys should invest in the new aluminum oxide glass. It is the glass of the future!
Yes, 'transparent aluminum', which is actually a compound of aluminum, blows the doors off 'bulletproof glass'. It costs more, but the performance is way beyond laminated glass. Advanced civilizations use this special aluminum compound.
What about Lexan sheets? I thought thick Lexan was essentially bullet proof.
@ 08:45 the commentator says "that way each piece will have the EXACTLY the same curve". This is not at all true. Each piece will have a unique curve based on a radius that is different than any other piece by the thickness of each piece relative to each other. If the glass was 1/4" thick, and the sand surface radius was, say, 120", then the down side of the first piece of glass would have a radius of 120", the up face of that same piece of glass would have a radius of 119-3/4", the down face of the next piece of glass would have the same radius as the up face of the first piece of glass (119-3/4"), and the up face of the second piece of glass would have a radius of 119-1/2", etc.
It may sound like I am splitting hairs, but if you tried to re-arrange the order of the glass pieces after they were curved, they would not fit together, as each one would have a different curve based on the increment of the thickness of the glass.
I was waiting for the aliens.
Why did they have to use a second piece of glass for the final test ? Check the position of 1st two shots.
Because you didn't realize the camera is filming the back of the window some time.
They use a crt monitor!
Good for low speed handgun rounds sub 1200 FPS. Most rifle round are much faster.
There is not much one can not do in the name of science! With that said, when I was a high school sr, I got a scolding from a cop after rolling small boulders down a hill, that unbeknownst to me were ending up on the sidewalk a street below, though we're out of view because of trees and a retaining wall. I should have invoked the name of science!
They have transparent aluminum now that is stronger than glass!!!
okay. say does that machine get as hot as the eaarths magma
21:56 almost game me a heart attack
Having worked in the glass industry for 10+ years and not having used this kind of table before I can relate 100%.
Did you guys not see the explanation at 3:00?
@@johnwyman6331 I did but the glass was sliding on the table and there was no one to stop it.
Is Adam related to Les?
Presidents limo has 8 inch thick glass!
Where to order, I'm from Philippines..
Find local glass factory . Or you may get information at any glass shop near you.
Back when History channel was not full of Reality (Snowflake) Programs
W.O.W.W.O.W.
This guy sounds like project farm
Not pistle aka 47 yh u suapect it to shatter
Now stack the Rounds see how long it lasts I bet 5 rounds 357 7 of 9 mm ball
👍C😎😎L👍
fraud. the first bullet hole is not in the same place as in the final glass, 21:05 and then 21:35. notice the other gun-firing shots, you can see the whole pane of glass in a single recording. The first bullet hits the "bullet-resistant" glass below a dark spot on the vertical 2x4 on the right. In the final shot, the hole is above that mark and we don't see where the other bullets hit the glass because it would be too hard to try and fake three holes. Buncha liars.
h7opolo damn you right
A real bullet proof glass is about 2.5 to 3 inches thick glass and lexan laminates and there are 2 of them spaced apart. The aim is to take at lease 2 to 3 hits in the same spot while the second bullet -proof glass will give the person a chance to take defensive action and take proper protection as he fires back.
I doubt if they faked it. That would be a lot of work. But I could see them having to do 2-3 takes, using fresh pieces of glass. This is frequently done in video editing so the editor can choose the best take for each angle. I noticed that there were at least two pieces of glass in the autoclave, so they probably had a backup piece. It would be stupid not to.
I also noticed that the first shot was very close to the edge of the glass and might have compromised the structure of the glass, causing an issue when subsequent shots hit the glass. This would be less of an issue in the real application, as the glass is typically strongly clamped into the window frame to avoid losing integrity on the edges. In this case it's just held by 2x4s, which wouldn't provide the necessary support.
Lastly... are you claiming that bulletproof glass doesn't work or something? Why would they need to fake this?
More than likely it was due to film production than lying, not that the history channel is a very honest bunch... they either didnt get the right shot or lost it so the editor had to make due with what he had, or the editor messed up and didn't notice which clip went with which. This could have been filmed weeks or months before being edited. Filming is a biotch.
@@Sethicorn lol at your last point
They should use AK-47 m-16 shoot the glass
Impressive, for sure... but you need seek out the vid of guy sitting in car, and an ak47 is shot at him... gonads of steel !
420 sandpaper huh
Its take 2 hour break..😂
Me: 'looks at the thumbnail'
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Finally !
*How it's made Crack Cocaine*
There is a such thing as a 50 cal.
Glass that thick these days can stop .50 cal rounds i wonder what they changed
That thick where please cause ive seen .50 cal rated windows that are like 5 inches thick 130lb
i thing i know is...its not gonna be cheap
While the program is interesting, I hate how these show hosts talk like the factory is theirs and they know the employees by name. Rather than the 2 hours they just dropped in and did a location shoot.
Tarak❤️
11:00 a flat earth wouldn’t have that problem.
itzy icy
😨😨😨😨
I'm so going to fail my exam.
Hey where are your suspenders?
You are behind a wooden barrier and have a full face shield.
Yall should teach Elon I think the media's constant pampering has gone to his head..
Just ran across this video . Amateurs, There is No such a thing as Bullet proof, Just bullet resistant. Try some DU 50 BMG rounds.
This niqqa used weak ass wood wtf was that finna stop🤣🤣
Can't bare the seppos accent....
all that for a 9mm gun not worthy
It's not 100% bullet proof.
Weak quallty it shouldent shater at all
There is no curvature of the Earth.