How We Make Glass Nearly Unbreakable … With Science

We know that glass is fragile - that's like, it's main thing. But research is working on improving how we make glass to make it unbreakable, or at least as close as we can get. Here's the latest on how to make truly shatterproof glass!
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[@kelleenbrx6649]

Glass Plastic Lasagna= Bulletproof glass

[@GreenPoint_one]

Indeed, ur right 😉🙃

[@pdxmusl1510]

😂😂😂 i will now forever refer to layered glass like products as lasagna 😂😂😂

[@thexanderthemander]

Mmmmmmm lasagna

[@RyanPaton]

I'm sorry but you are wrong windshields DO NOT use tempered glass. They use regular annealed glass with a PVB (Polyvinyl butyral) interlayer that bonds the two pieces of glass together and to the interlayer to keep the occupants safe by keeping the windshield in place in an accident. Please make a correction to your video because you are spreading false information. I expected better from your channel. I am a huge fan and long time watcher...

[@koimananana]

​@@RyanPatonbro are you high

[@dungeonmattster2134]

The glass in windscreens isn't toughened, but two sheets of ordinary glass held together by the polyvinyl butyral interlayer. Windscreens crack and the cracks then run, this does not happen with toughened glass - any impact strong enough to crack toughed glass will lead to it fracturing into many thousands of tiny particles as described in the video. The glass in the side and rear windows is toughened, but it isn't manufactured as toughened glass to start with. Rather these windows start out as sheets of flat ordinary non-toughened glass. After being cut into the correct peripheral shape (you can't cut toughened glass either, it shatters if you try) the glass is then heated up to the point where it is soft enough to be bent or pressed into the curved shapes we see in cars. Cooling it down quickly from this temperature causes the tempering effect described in the video, they were just wrong about when it happens - rather than happening at the original manufacture of glass from sand it is actually just about the last thing that happens to the glass in the manufacturing process.

[@Ozzie1416]

I work with shower door and its the same process you get the raw sheet of glass and cut it to size you need drill any holes that need to drill then temper it.

[@marshallA.-bp5mi]

interesting, thanks

[@Kram1032]

There *is* a form of glass that is a bit more ordered. It's called Ideal or Ultra-Stable Glass. Takes a lot of time to make it though: It'd theoretically happen if you allowed it to cool of "infinitely slowly". There are ways to speed up the process though. For instance, you can vapor-deposit it. Such ideal glass has a higher density than "regular" (fast-cooled) glass, and in some ways behaves strangely differently. Normally, glass is difficult to heat, but this ideal glass has a much lower heat capacity. There also is a different ideal glass that comes from ultra thin sheets: The thinnest possible sheet of glass ends up being more restricted as an entire dimension is unusable. That sort of glass is one of may "2D materials" that are at most a few atoms thick. Due to the amorphous property, glass can't get down to just a single atom thick, but iirc it only takes two or three atom widths worth of thickness to make 2D glass.

[@John.0z]

Very interesting, but where can Ultra-Stable Glass be bought? I had a quick look on the web, and none of the glaziers mention it. "Ideal Glass" is a glazier company here.

[@Kram1032]

​@@John.0z I don't think regular glaziers make that stuff. It's only made in research contexts for now.

[@John.0z]

@@Kram1032 As an incurable techie freak; what a shame. 🙂

[@lyleblue6739]

Kind of dangerously fascinating how any broken chunk of glass is a molecularly perfect knife i've carefully shaved the back of my hand out of bored curiosity once when I worked at a flowershop

[@4RILDIGITAL]

I never knew that such an everyday material has such a complex and interesting structure. The process of making stronger, safer glass is intriguing. Kudos for explaining amorphous solids and the physics behind shattering in a clear way.

[@MP-vc4nu]

Apple : Lemme prove you wrong with iPhone 15 bending experiments 😉

[@zaczane]

Can we get a video describing the different types of glass? Sodium glass, potassium glass, etc? Maybe even what Cesium and Francium Glass could look like?

[@Psilomuscimol]

I have some uranium "crystal" glass

[@Psilomuscimol]

It's pretty and I like it

[@Psilomuscimol]

I have other kinds of cut crystal too. But the pretty green of uranium glass is amazing

[@piraterubberduck6056]

The edges of tempered glass can still be very sharp, but the corners are close to 90 degrees so they don't cut particularly deep through skin. This is a huge safety Improvement over glass shards that can easily cut 1cm or more into you and break small parts off when you try to remove it, but it is not really blunt. From experience I know those tempered glass pieces slice effortlessly through denim.

[@murraysheppard1153]

I am a journeyman glazier. The only glass to seriously injured me was tempered glass. (Safety glass) It has so much stored energy that it shot pieces right to my bones!.. Two things anyone needs to know about any glass..it breaks, and cuts!

[@woutervanr]

I had a uni course on glass engineering. Really interesting. You have different thickness ofc and also different laminates. And you don't always want the strongest (=tempered) glass. After that you have the whole rabbit hole of connections you can dive into. And how you make glass stairs or supporting walls.

[@five-toedslothbear4051]

It might also be interesting to do a video on ion-implanted glasses like are used in phones, and Corelle/Vitrelle dinnerware, which is I guess a little bit like tempered glass. It’s really amazing when Corelle explodes, and that might make for a fun video.

[@CF_Sapper]

Amazing or underwear changing, depending entirely when the dam things "explode" and how long you have been out of a war zone.

[@Benrob0329]

Yes! Gorilla glass (the kind used in many modern phones) is pretty cool stuff and most people don't know how it works.

[@krishrox1015]

i love learning random information that i will probably never use

[@feedbackzaloop]

Was hoping you at least mention see-through minerals and ceramics that are used as glass but have defined crystalline structure. Like spinel, ALON... or diamonds?

[@thegreencompany2101]

That’s really amazing! Learned something new today🙌🏼

[@Vharing404]

I’ve worked in the glass trade for most of my adult life. Tempered glass is not dull edge. I’ve been cut worse from that than regular sheet glass.

[@OverlordMaggie]

The description of tempering glass made me remember the Prince Rupert's drop! Very cool phenomenon, though I can't imagine someone *not* mentioning this in the comments given the target audience :P

[@Ldysith84]

I'd love to hear more about the differences with specialized glass for phone screens (like gorilla glass) after watching this

[@laratheplanespotter]

No mention of Pilkington?! I studied this stuff in my vehicle forensic science class last year. I’m building on it now. Those radial and concentric cracks can tell us where a projectile likely originated from. Interesting stuff!

[@natepenn9112]

If you close your eyes you can hear Penn Gillette. Maybe a younger version, but still very similar. Comedy Central should hire this guy for commercial bumpers.

[@Pepso8P]

Having watched the video from you guys about glass not being a liquid despite popular belief, I immediately knew what claims you are referring to when you mentioned the keyboard warriors defending the liquidity of glass. I was surprised to find some in the comments almost immediately after this video was published though, I'd expect most of the early comments being from your subscribers who probably would've seen it as well.

[@keepitfashion]

This was excellent

[@kennylex]

If you see glass that look wavy like it been melting it may be old glass made on a sand bed, that was a old way to make glass and that methode often do som comeback for it create very nice softer light indoors due to the uneven surface, but it is not slowly melting away.

[@RyanPaton]

I'm sorry but you are wrong windshields DO NOT use tempered glass. They use regular annealed glass with a PVB (Polyvinyl butyral) interlayer that bonds the two pieces of glass together and to the interlayer to keep the occupants safe by keeping the windshield in place in an accident. Please make a correction to your video because you are spreading false information. I expected better from your channel. I am a huge fan and long time watcher... Also tempered glass is not dull edged clumps.... it is small pieces which are much safer when they break for humans but will still give you many little cuts which is far safer it is true then getting cut by large shards of regular annealed glass.

[@dennis2376]

Thank you.

[@joesmith4494]

Ive been to the great canadian glass gathering several times. Its a glass festival. Ive seen glass springs and glass axes that work. Wizards of glass just make it do as wished.

[@erichughes2024]

Glass + Plastic + Carbon Nabotubes + Graphene = Indestructible material. 😁👍🏾😎

[@PeteLorimer]

What about structural glass? Like the kind that forms the floors of many of those observation decks with glass floors?

[@Ozzie1416]

That would also be tempered laminate sandwich sometime with a texture added to the top so its slippery.

[@DanielPereira-ey9nt]

They're just thicc

[@culturebreath369]

His voice reminds me of Bear. ❤

[@StYxXx]

Well there are drinking glasses made of tempered glass (Ikea has some for example). Although probably no wine glasses, since their design is delicate and kids don't use them

[@geoffgunn9673]

I like the way glass sheets used to be made by spinning it on a pole. And that's the reason it's thicker at the bottom on old buildings, cut from a sheet like a pizza that will always be thicker in towards the center, so they being aware of the difference, they put the thick bit to the bottom when glazing

[@laratheplanespotter]

That’s not how sheet glass is made. That’s on a long tin based bath

[@geoffgunn9673]

@@laratheplanespotter now, but when it was first produced, this is how they made it. Float glass is a fairly recent invention

[@AgentOliver]

Something I learned from Mythbusters: Nothing is bulletproof, it can only be bullet resistant.

[@OneAndOnlyJackSchitt]

Can we get a part 2 which talks about gorilla glass and borosilicate/labware glass? (Pyrex used to be borosilicate but now it's just tempered and you can't use it on the stovetop like you could in the 80s.)

[@Pelidude]

That's the difference between PYREX and pyrex. The all caps version is the old boro (and I must say better stuff).

[@doktormcnasty]

Was not covering off on the Corning Gorilla glass used on our mobile phones a missed opportunity here?

[@evilsharkey8954]

I thought you were going to talk about Corelle dishes. They bounce off the ground like plastic unless they hit just wrong, in which case they will shatter into hundreds of tiny pieces.

[@headerahelix]

But why does tempered glass suddenly explode sometimes without impact? I've seen on Reddit countless posts in the PC building community about people's side panels suddenly exploding, some manage to film it in progress and you can see and hear it popping like popcorn.

[@outlawbillionairez9780]

'Unbreakable glass". Hydraulic Press Channel.."Ve vill test dis!!"

[@ronkirk5099]

There is also an interesting article on glass in this month's National Geographic.

[@Rorschach1024]

And some bullet proof glass is used to make whale tanks in Klingon Birds of Prey. Aka aluminum oxynitride.

[@philcookies9470]

What about metallic glass?

[@willabyuberton818]

Looking forward to Hank's Tempered Wine Glasses of Science.

[@LonestarTaoboy]

What happened to the "Damascus" video? Even though it was pattern welded steels. Video deleted, how strange. Were there mistakes made perhaps?

[@xpatrstarx]

I got a stone chip in my car window for the first time the same day you guys release this video 😂

[@petevenuti7355]

I used to make these "joke" capsules with a jellyroll of magnesium flash powder and flash paper. Fine till i left one in a glass ashtray. It went poof as planned, but 5 seconds later the ashtray exploded sending sharp chunks across the room! Bad idea.

[@RonTodd-gb1eo]

Is there any non destructive way I can check if a piece of glass is really tempered glass or standard glass I have been over-charged for?

[@yunthi]

the tempering process partially polarizes glass. as in in certain angles in a certain light your rear window appears spotted. each spot is where a cooling air nozzle was pointing at the sheet. any polarizing lens will show tension inside the glass as oily looking area. the heating and rapid cooling can also warp the panel a bit, your standard float glass is pretty much optically perfect, tempered glass, if you look at a reflection from a very steep angle you can notice some warping. (almost from the direction of the edge.) its not 100% tho, but a good indicator.

[@michaelmcchesney6645]

How is Gorilla Glass made? How is it different from regular glass?

[@douglasboyle6544]

Don't be fooled! While they are much less sharp than standard glass shards broken tempered glass chunks can still be sharp. Also The SloMo Guys have a few videos where they try to capture the propagation of a glass fracture with their speed cameras and it is mind-bogglingly fast.

[@jonatanromanowski9519]

Go Go Sci Show!

[@PrettyVacant45988]

Years ago on NHK, Japan, they showed a guy who accidentally invented glass that can heal itself. Does it seem that the best inventions were by accident? and why haven't we seen this glass in use?

[@AeronHale]

Yet we can't make a phone screen capable of withstanding being around me for an extended period...

[@KGTiberius]

📍 Transparent Aluminum (aluminum oxynitride) - aka: ALON - is yet another solution.

[@nffclacey]

Go to 0:00 and tap -10 seconds over and over enjoy

[@oBuLLzEyEo1013]

What the heck the community post about the table and now this... Nice segue...

[@hololightful]

Too bad you didn't cover any of the crazy science going into stuff like "gorilla glass" for phones and such... But great video as usual!

[@Xada35]

Didn't people in East germany develop an almost shatter proof, wine glass?

[@frosted1030]

You forgot about transparent aluminum.

[@my-tschischlak]

Whats about the glass its known as liquid because of this. In a shop window, a very big one, which is over 20y old and still the actual shop window, you can SEE at the edges where glass connects to the frame, that it gets THINNER, because it flows down due to gravity ? Thats why it says glass is a liquid.

[@yunthi]

nah, you can still find some roman and egyptian glass jars in museums, they do not resemble puddles which they would be after 2k+ years if a decade or two was enough to make a visible change. in general if you look at the edge from teh middle sortof, the glass bends light much like a straw inside a glass of water. it looks thinner but if you actually see the edge, they dont change. its still the same thickness and if you look at really old mouth blown glass, yea its true its thicker at the base but thats because it was installed that way. essentially mouthblown glass isnt even thickness and the thicker part tends to be most straight, you nail that down and use the runners to press the rest against the frame. resulting in a panel thats thicker at base.

[@thekaxmax]

plasma-deposition diamond sheet, laminated.

[@belindaweber7999]

I'd just like a windshield that wouldn't let an animal like a Kangaroo or Emu come crashing through when it's jumps out in front of a car going at 110kms/hr 😳

[@funderburke43]

I miss amorphous pellet

[@Qermaq]

This sounds like an insult. "You eat glass sandwiches."

[@daqq]

Plastic wine glasses are usually shatterproof... 😂

[@garner6583]

Windshields are not tempered. They are laminated.

[@genocidegrand2057]

we actually have wineglass that cant shatter its called mug

[@dragon411320]

and then you have lab-created sapphire lenses as "glass" too

[@1MarkKeller]

Kool

[@PlankNom]

But glass is glass.. And glass breaks

[@norliasmith]

The windshield is laminated glass...

[@BigFatJuicyMonkies]

What's the speed of propagation of a glass crack? How fast does a crack travel through a piece of glass?

[@Beryllahawk]

What, no borosilicate glass?

[@TrustFire1]

You want car windows to be breakable in case the doors can't open

[@whitehawk5]

You meant 500 not 5000 years right ?

[@GuardianOfUltima]

Glass is horrible for birds. We should be regulating the sole use of one way safety glass in all applications to protect them.

[@DhruvParmar12]

Glass is glass, and glass breaks

[@mysteriousshadow395]

The carjackers disagree

[@prsworld]

Glastic

[@jed-henrywitkowski6470]

Nothing is "bulletproof". Just so you know - the term you need to use is bullet-resistant or ballistic glass.

[@alexanderwuolukka8333]

Everyone! Update the lexicons!

[@eleycki]

Isn’t everything ’nearly unbreakable’ ?

[@sdelzer7896]

Super interesting article about super tough glas: en.wikipedia.org/wiki/Superfest

[@Jimmyni-kk4em]

Wat about nick fury car

[@zzzetsulive]

Technically you are a liquid... If i feed you intro an industrial rock crusher.

[@Asadmalik31715]

Pzz

[@Hobbes4ever]

yeah you can't exactly make glass unbreakable with religion

[@falcon1209]

Can we stop saying "see" as an introduction to any sentence where you explain something?

[@izz6581]

Skip all the weird Nazeing issues by calling bullet proof glass bullet proof transparent sheets

[@christopherzarnsy468]

Bunch of know it all glass'holes.... make ur own videos then... lol I'm just friendly-trolling... love the videos gg😂

[@RyanPaton]

I think there are too many errors in this video for you to keep it up. Are you going to do the right thing and take this down and correct your errors?

[@charlesrovira5707]

I'm surprised that you didn't cover ALON (Aluminium oxynitride. [†]) Now *_that_* is bulletproof. †) [ en.wikipedia.org/wiki/Aluminium_oxynitride ]

[@schroedingersdog7965]

Although glass has the non-crystalline *structure* of a liquid, it is, nevertheless, a solid. Consider that telescope lenses and mirrors are made of glass that is shaped to exceedingly small tolerances. If glass did flow, the images created by telescopes would quickly deteriorate until the instruments became unusable. In fact, telescopes manufactured 150 years ago still produce pinpoint star images demonstrating that their optical components haven't changed shape in that time.

[@lunatickoala]

Sometimes people give an incorrect "proof" that glass flows by saying that in really old glass windows the bottom is thicker. While in some cases there are really old windows that are thicker at the bottom, it's because manufacturing techniques weren't as good way back when. Glassmakers would blow a bulb or cylinder and then flatten it out with hand tools which means the windows are much less uniform in thickness than with float glass. Then when the windows were installed, people were smart enough to put the thicker and thus heavier side at the bottom. But not 100% of the time and there are cases where the thicker side isn't at the bottom.

[@nickkomlev687]

Exactly. Also lead, that was used to hold those glass fragments is less viscose than glass, so if we call glass a liquid - than we can call lead a superfluid, i guess)))

[@garethdean6382]

The difference is that glass contains a network of silicon and oxygen atoms.This cannot move without breaking bonds and holds the entire substance together, not allowing individual atoms to move from their positions. Only at high enough temperatures to break this network does glass become a liquid.

[@wwyk1993]

Glass is glass and glass breaks.

[@yunthi]

a few corrections. the rest of your car windows are indeed tempered, but the windshield is not. there are a few reasons for it, but to make it obvious for any layman, im sure you have all seen a cracked windshield. that cannot happen with tempered glass, itl shatter the entire panel like a prince ruperts drop as soon as you crack it from anywhere in the panel. one of the reasons its not tempered is, it becomes very hard to see thu after it shatters into those pinkytip sized pieces. there are ways to make partially tempered glass, which is sometimes used in heavy machinery. where you temper tha glass so that the area in the middle of the panel shatters into bigger pieces and not those pinkytip sized ones. but thats not done in cars in general. the second reason is why they started to use laminated instead of temepred was, tempered glass is very resistant to dull impacts. which in case of a car crash would sometimes result in your neck breaking on impact with the windshield instead of the glass. (tho origin was before seatbelts became mandatory). so these days your windshield is made of just laminated ~2+2mm glass, and in the case of a car crash, you are more likely to break thu the windshield instead of being squished by it. as for bulletproof glass, the point of the glass layers is essentially that the bullet loses its energy into breaking the glass instead of penetrating it. polycarbonate sheets are often used in it, but its only the last layer and never by itself. polycarbonate is fairly soft and easily penetrated by bullets, but its very stretchy and resistant to cuts. so its often used at the back of the bulletproof panel to prevent spalling, or the last panel shattering resulting in flying glass shards on the other side of the panel. the polycarbonate is very good at catching those.

[@yunthi]

bonus fact. the way tempering is done, its heated up in an oven, and then cooled down with pressurized air, usually by a wall of nozzles and sometimes with fluted ones. the tension partially polarizes the glass. so in a rear window, at a certain angle, the glass panel sortof looks spotted (specially if you use polarized sunglasses). each of those spots is where the high pressure cooling air nozzle was. the fluted cooling results in repeating stripes

[@yunthi]

also i like the fact that you clarified the glass being liquid myth. its somthing even my physics teacher got wrong, with the myth that it flows and its the reason old windows are thicker at the bottom vs top. its true that old windows are thicker at the bottom. but not because it would flow. now most of this is from my father who has installed mouthblown glass to museum graded buildings. so its a word of mouth from an artesan and not otherwise verified. but the reason for the thicker bottom was the method of how those are installed. to start with, it really is mouthblown glass. its first blown into a bubble, then using a vertical plane formed into a long culinderical bubble around 1 meter in length and a bit over 30cm in diameter. the ends are cut off, then you cut it open. its placed in an straightening kiln where the cylinder is opened and laid flat, resulting in roughly 1m by 1m square. now heres the important bit, when it cools down, the heavier parts tend to stay roughly straight, while thinner parts tend to curl up a bit when it cools down. and when its installed, you put the straght edge down, nail it in place. and using runners, press the curled thinner part against the frame and nail it in place. and there you have it. a glass panel thats thicker at the base. the myth is further strengthened by the timeline of how glass is made, as in the mouthblown glass looks like its flowing because well, it did before it solidified. the next evolution of glassmaking was to pull the glass sheets between 2 rollers, which results in mostly straight glass. this was installed with teh roller marks vertically so its less opticly disturbing. im sure most of you have seen glasss like this that looks okay but when you walk the verticcal warping becomes apparent. and lastly the modern float glass which is made by floating the glass material over a mixture of tin lead and other metals which are heavier than the glass. and then pulled from the bath, the speed dictates the thickness the end result will be. and this float is more or less optically perfect. so the timeline is, modern glass, optically perfect, a bit older glass, with vertical stripes. and really old glass that looks like it has been flowing with bubbles in the glass and clear areas with different thicknesses.

[@jtjames79]

​@@yunthi The oldest glass making technique just spun a disc. It was thicker in the middle. When you are installing them, you put the heavy/thick side down, so the glass doesn't immediately fall out if you take your hand away for just a second.

[@DruNature]

​@@yunthiwow you've both added like a 10 minute script!

[@kashiichan]

These aren't really "corrections"; they talk about windscreens and bulletproof glass from 3:55 onwards. But thanks for the extra context.

[@Psychx_]

Fun fact: Hardened, near unbreakable glass has been a thing since the 70-80s and was sold until the early 90s under the brand name "Superfest" or "Ceverit". It was made in east Germany and the glass was hardened through an ion leeching and replacement process, which created tensions directed towards the inside of the material, much like in a "prince rupert's drop" (without the weakspot though), giving it a very high resistance against scratches and shattering. After the fall of the iron curtain, the manufacturer was bought by a competitor, and the production stopped, because from a business perspective, people would eventually just stop buying them, since the need for a replacement would rarely ever arise, while competing against such a product sucked. Incidentially, this kind of product design philosophy is exactly what's needed to reduce consumption as a whole and humanity's ecological and climate footprint nowadays.

[@lunachocken]

Planned obsolescence

[@nikroth]

Who would use it ? You can't make a big sheet out of it. And if it was usable, it would have been sold for an amazing price to the richest, no one would sell it as a normal glass. So yea, the story might be true, but the real reason as to why it's not produced, lies elsewhere.

[@JohnnyWednesday]

If we could make a glass fiber that applied sufficient pressure to the core to maintain the high pressure super-conducting properties of a suitable material that we could somehow encase inside? we could buy Canada.

[@Morboxx]

​@@nikrothYou haven't been paying attention: Superfest glass DID EXIST. It was available in a country vastly less rich than the one you're in, specifically to cut back on long term cost and resource waste, which were issues to a less than affluent socialist country in the centre of Europe!! I can literally buy six new ones from remaining batches on eBay as collector's items for 30€ here in Germany! And six shot glasses for 20! Maybe I will...they should last a while! It wouldn't make much sense for windows, though. Even using existing techniques, it's really hard to break a window pane. They don't usually fall down, especially not with the thick glass hitting the ground directly.

[@Leadvest]

According to what I can glean from the patents, the soda-lime components of the glass are exchanged for other ions, this displacement reaction takes place through surface contact with flows of heated salts, which leaves behind a tougher glass. The chamber design makes it seem like it would be difficult to scale up the process without a deeper understanding of the relevant dynamics.

[@justinpyle3415]

Windshields aren't tempered, btw, they're just laminated

[@geoffgunn9673]

They used to hardened, laminated windshields became popular around the mid 70's

[@NeoGen1987]

They should make it with superfest glass or gorilla glass Using the plastic technique would make it nearly indestructible

[@13menrollingdown]

tell the severed tendon in my left foot that tempered glass isn't sharp when it breaks. it's definitely safer than non-tempered; no giant shards that can slice off appendages, but each of those tiny cubes of exploding glass can pack a very dangerous punch. Replace your tempered glass shower doors with curtains, people (or at least, make sure they're laminated. not all are). Those doors will undergo so much thermal cycling over the years they're installed, they sometimes explode without even being touched. Mine broke while I was IN the shower, and let me tell ya- not fun being naked and up to your angles in blood and cubed glass.

[@bmanpura]

My condolences, deeply and truly, but forgive me for smiling a bit at your last sentence.

[@danser_theplayer01]

Just yesterday I had to install new ram sticks and so I was taking the glass panel off the computer case and it exploded in my hands. Luckily no cuts, only a pair of pricks, but I had to waste an hour cleaning and vacuuming that mountain of glass shards and dust. Gonna order, drill, and cut acrylic as a replacement. It's damn scary to handle big glass things.

[@FusionDeveloper]

Smartphone Glass: now even stronger! So then they make it thin enough to be just as fragile.

[@jc5495]

Front windshields do not have tempered front glass sandwiched in a laminate. They have two regular glass with the laminate so if the glass gets a rock crack you can still see out the window.

[@drk_blood]

" Glass is glass, and glass breaks. " - Zack.

[@roshi2627]

I was looking for this comment😂

[@cudaman-yq7pq]

Is gorilla glass just a type of tempered glass, or something different?

[@AILIT1]

You are what you eat. I'm seriously considering eating glass plastic and other type of plastic sandwiches so I can become bulletproof.

[@thinkabout602]

😂

[@garethdean6382]

The logic is inescapable,if you eat plastic and glass you'll never have to worry about dying from bullet wounds.

[@HeyNonyNonymous]

Mmmm... glass sandwich...

[@leedunbar4222]

Gorilla glass I, Gorilla glass II, Gorilla glass III?