Is Glass Really A Liquid?

[@TomGelmers]

lol even my science teacher made me believe that glass is actually a liquid. LOL

[@keripalajanata]

sling poop at your science teacher

[@TomGelmers]

good idea

[@brentb5303]

We were lied to apparently.

[@LordPlagus777]

Lauren is a solid 10.

[@Spiegel420]

LordPlagus777 more like a 6

[@pidgo4867]

Dan Loe-Castleberry +4

[@HattieMcDanielonaMoon]

@@pidgo4867 -4

[@Lerkero]

This is very interesting. I have wondered why people still ask this question about glass. Turns out the research is still going on.

[@SantaWithGuns]

We all know its a gas. Silly scientitions!

[@seasemestreetcast]

Its a lasquid!

[@ichigo199]

Keenan Healey solquid actually

[@merocs101nvnv]

plasma I believe

[@jcwdesigns82]

I've a question for you to tackle, why does the same temperature feel cold in the winter and hot in the summer?

[@timewalker38]

Hey you still here after 9 years?

[@losveratos]

She was much better than most of the other hosts so far on this channel. I hope to see her more in the future.

[@daddyleon]

I always thought it was a very very very viscous liquid.. :-/

[@Knaeben]

My views of glass and it's liquidity have been totally shattered by this video

[@cappie2000]

finally, a presenter without brain damage :-)

[@FroehligGirlz]

BTW, glass at room temperature is an amorphous solid. It's primarily silica, and yes, most of it comes from sand or recycling. So yes, please recycle. Doing so preserves beaches. God knows what damage we're doing digging so much shoreline up, as if we didn't have enough shoreline erosion as it is.

[@johnstarr2001]

Lauren, thanks for the solid!

[@qwertysingha]

😳👍

[@wedmunds]

Pitch drop experiment v2 anyone?

[@shadowdance4666]

Very interesting to look at.

[@erik61801]

Hmmm, your spinning glass conclusion might have applied to very early glass manufacturing, but the glass in 20th century homes was made by flowing the molten glass onto giant pools of molten tin thus the ripples and distortions you see. Also Ive read that some of the horizontally mounted glass in the sistine chapel thats been there over a thousand years does indeed deform and fall out of its mounting..

[@jamevianjackson5605]

Glass is just a non-crystalline solid.I don't see why it needs to be more complicated than that

[@cosmosgato]

Back in the day I was taught glass was a liquid.

[@celticslimjim]

You were taught that because glass IS a liquid, strictly speaking. These days people are referring to it, as the lady in the video said, as an amorphous solid. However in terms of Gibbs free energy glass truly is a liquid.

[@briantrash]

@@celticslimjim Glass has been considered an amorphous solid for a LONG time, so it's not just "these days" that people are saying it. In the 80's when I was in junior high, my science teacher/track coach tried to force us to accept that it was a liquid. I remember having argument after argument because this seemed so ridiculous to me. Finally I talked with my father, who told me that when he was in college, in the 60's, EVEN THEN they were taught that glass was an amorphous solid. That was over 50 years ago...not "these days". So this concept is nothing new, but the misinformation keeps getting perpetuated by high school coaches who are unqualified to teach science but are required to so the school can save money.

[@yashadityaaggarwal3342]

Is there any work of evaporation in the old building glasses which becomes thicker from bottom?

[@Jerrydupris]

Wow. Always had that same exact question in my mind.

[@Wmikesterr]

Very good to know! Thank you.

[@nayakworldinfo]

Do you make a video who explain about pseudo solids with some video example?

[@robertof84]

I'd like to know about the Fahrenheit scale for temperature. Celsius is pretty obvious but where did Fahrenheit come from?

[@soulfuldevil]

Solid; firm and stable in shape; not liquid or fluid. Liquid; having a consistency like that of water or oil, i.e., flowing freely but of constant. I think it's fair to say that glass is a solid. I have never heard of the question or statement about glass being a liquid or if it was a liquid.

[@jefferytr]

I think you should have more graphical illustrations, either by drawing or by video (this actually applies to all other channels of Howstuffworks on KZbin). I like the content though, but I enjoyed it much more when I listen to podcasts. On youtube, I expect video illustrations.

[@koreabee]

Everyone can observe that glass is solid through looking at it for a first time, but when you scrutinize its molecular structure "the particles" of glass are not in the classic position of an solid, they are not so closely gathered as in solids the structure is liquid like {cause they form clusters not really and closely attached to each other}. Most of solids they aren't transparent ( except diamonds and some other organic compounds...) but glass is transparent, transparency is an basically an ability that liquids and gases share this fact also makes us think that glass is both a solid and a liquid. In terms of molecular dynamics and thermodynamics it is possible to justify various different views that it is a highly viscous liquid, an amorphous solid, or that is neither liquid nor solid an that is something in between the boundaries of what is called as a solid and what liquid. The difference is semantic.In terms of its material properties we can do little better.There is no clear definition of the distinction between solids and highly viscous liquids.All such phases or states of matter are idealisations of real material properties.Nevertheless, from a more common sense point of view, glass should be considered a solid since it is rigid according to everyday experience. The use of the term "supercooled liquid" to describe glass still persists, but is considered by many to be an unfortunate misnomer that should be avoided. We also can say that is an colloid such as styrofoam, fog , ice clouds ,shaving cream and what I like most JELLY... :) COLLOIDS: A colloid, in chemistry, is a substance in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. Sometimes the dispersed substance alone is called the colloid;[1] the term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word suspension is contradistinguished from colloids by larger particle size). Unlike a solution, whose solute and solvent constitute only one phase, a colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension). To qualify as a colloid, the mixture must be one that does not settle or would take a very long time to settle appreciably. Nice video, good job..!

[@rluv4evr]

I've seen window panes where there is a hole at the top and the glass is thick on the bottom. That was in very old buildings in England, so I say that glass is a very slow moving liquid. It couldn't be more obvious.

[@timewalker38]

Then how does a hundreds of years old telescope still works perfectly?

[@parthgupta669]

Good evening respected tchr. I"m Parth from India. I really like your video. plz make more short videos like this one. I wanna know more 'bout chem tpcs frm yr chnl.

[@brandonlyke7818]

centrifugal force is not a real force, you should have said the law of inertia.

[@jayfulf]

?

[@brandonlyke7818]

Centrifugal force is not an actual force, what your actually feeling or doing, is the law of inertia trying to keep you in the same state you were In originally

[@BrainStuffShow]

You're completely correct -- I was being colloquial, but should've held myself to the real terminology. Am now plotting an episode about the difference between the two. Thanks for watching and commenting. /Lauren

[@DanielBuenrostroC]

BrainStuff, you earn another subscriptor. Nice videos (:

[@9959911611teja]

I have a question how the gas lighter work ? And what is the amount of voltage formed at that arc I.e. light ?

[@ashleypatricia2223]

Oh my god glass is amazing

[@alik.m1529]

What is Miller Indices

[@audiomashup]

Is it true that margarine is only 1 molecule away from being classed as plastic?

[@chedderbob5700]

one could say that I guess, however, that same thought process would also suggest that water is only one molecule from bleach.

[@chedderbob5700]

Bart Goelema Nope, it would be one molecule since bleach is CL2+H2O

[@chedderbob5700]

H2O2 is hydrogen peroxide, and yes that is only one O atom away from water.

[@audiomashup]

Chedderbob'O' atom being 'Oxygen' :)

[@Mambo50]

Love this.

[@kylelittman2168]

Interesting; however glass is more of a liquid, as it flows over time. Similar to some peoples assumptions of the earth being "solid" event though at various depths the CRUST can no longer be considered solid as it flows and deforms like a viscous fluid (not like a solid). Just thought I should remind ppl not to be deceived by our sense experiences.

[@hola_chelo]

+Samrux Glass flows, of course it flows and has viscosity, but sooooooo low that it would take a glass to flow more than the entire time of the universe, in a solid the mollecules don't move or flow and they are arranged perfectly, in glass is, as the video says, more "random", it's not random, it's just that the mollecules have so low time to rearrange that they don't, they keep like they are, that's what makes it a liquid and what makes it flow...

[@LiLFo20KiiNgF4Ts4Kz]

Mind blowing

[@FroehligGirlz]

Glassblower, here. Actually, the glass would be thicker toward the center of the disk, perhaps with a bit of a lip around the edge. If you watch a dog shake off water in slow-mo, you get the idea of how fluid spins off with the cetrifugal force throwing it out, and the centripetal force (sorta like gravity on the dog) holding it back. Glass is at best really gloopy in its liquid state, and though you *can* blow it out thin, it's not actually going to flow much toward the outer edge when spun. It jst flattens. Too, they din't just blow the bubble and spin it. They blew it about as thick as they wanted, probably flattened from a bubble to a cylinder, put it on a punty (pontile), cut it off the pipe, and then spun it. Yeah, so thumbs down on an Ed video that pretty much misinforms. I hope you enjoy my ad revenue.

[@timewalker38]

Did you get to know that this video is true in these 5 years?

[@mohakgoel7917]

Lol, you discoverd 7 years before the scientists, that glass is a new state of matter called "Liquid Glass" 😉

[@smbrob]

Never did notice my glasses dripping of my nose :-)

[@spatuli]

But the glass in our windows is also a little rippely in some spots, and they've only sat there for maybe a 100 years. So the glass was that way when they made the house?

[@BrainStuffShow]

Yep! Either that or someone took a really hot blowtorch to it at some point.

[@spatuli]

I don't think anyone would do that.. But fascinating!

[@keepinitfloored]

Brick is fired clay. Does it move/compress

[@sleepygame1]

what about metal like iron that heated to a high temperature witch turn into a liquid .

[@bigboienfer4331]

thanks brain STUFF

[@DanielC-dz8pu]

Damn glass being all rebellious

[@smokemagnet]

A liquid answer for a solid question...

[@bigc473]

I feel like NASA needs to hold off on its assumptions regarding the possible structure of planets inside/outside our solar system until this questions has a 100% "solid answer"... just sayin'.

[@fr3aky0u]

glass is a solid. it's just heated enough to be moldable. trust me i work in a glass plant.

[@himanshugusain1]

What happens when we eat chillies ? What makes that pain?

[@jamestarrou3685]

Good video

[@ei7ijb]

Our schools books were way outdated.

[@DJdeliverance]

Then wtf does it happen to non blown glass have the same behavior?!

[@Inckman452]

this didnt answer a question this generated several...to google!

[@connorgreen1749]

She's smart and pretty. I'd tell her she was right all the time and wouldn't mind it ;)

[@ThisisRubbishlo]

That's not how you made old glass window panes

[@Eric_D_6]

Just compare it to wave-particle duality. That's all the explanation anyone needs ,right? (sarcasm)

[@derwenthotel]

I have a question that I want answering......was Julius Caesar really the first person to be born by Caesarian section? And how was that method discovered?

[@ThisIsDansk]

The girls at Stuff Mom Never Told You did a podcast on C-sections last spring. You can check it out on their web page: www.stuffmomnevertoldyou.com/podcasts/why-are-more-women-requesting-c-sections/

[@Kasumi8779]

Think about it. Caesarian Section is surgery which you would associate with the time where you would get a something like a medical operation if you had a disease, where when Caesar lived of you had a condition you would be drained of your blood because you had "bad blood". Think about it.

[@MrPrez101]

I'm not sure if he was born that way but it was obviously named after him. I mean, It's a CAESARian after all

[@TheBaconWizard]

MrPrez101 he was born that way, yes.

[@TheDestroyer73]

i see improvements on the explanations :D

[@skinn83]

This video adds to the confusion. You need to make a distinction between the making of glass at high temperature and the solid glass we see everyday. We dont say water is special because it can be a solid liquid or gass at different temperatures. What happened to education?

[@prixat]

How many 'states of matter' are we up to now? ...something like 14???

[@lorddarkseid9445]

I was thinking solid then you got borderline philosophical

[@JohnnnyGash]

Are you Bailey Jay?

[@kirayamatogokusasuke]

Can you guys do a video on Erectile Dysfunction? Is it possible for males around 21 to have it? Please and thanks!

[@A-Duck]

Subtle, bro....

[@sholmesbrown]

Ha ha

[@kronosx7]

Glass is a solid, it does not flow, there is nothing to debate.

[@forestsoceansmusic]

Very informative, but mainly, Lauren, you are a Babe ! = P

[@Orsbore]

You haven't answered this question.

[@Lerkero]

Because there is currently no consensus.

[@Orsbore]

Lerkero No, I think they're saying it's a solid, but I'm not completely sure. As I said, they haven't answered this question.

[@ivo3185]

Orsbore I think they're saying it's a supercooled liquid. People haven't really decided.

[@Orsbore]

Youthro A supercooled liquid - which I believe is a solid. Like I said, they haven't answered this question.

[@Lerkero]

Orsbore If a supercooled liquid is a solid then why not just call it a solid? I think the point is that the research is still ongoing as to what to classify glass as. It's not clear (pun intended).

[@crackers1232]

Why does it hurt and or is hard to swallow food sometimes?

[@ivo3185]

That's more of a medical concern, it's just a sore throat.

[@HiAdrian]

Youthro I suspect he's talking about swallowing insufficiently chewed chunks of food. That can be a bit uncomfortable when it happens.

[@ivo3185]

Adrian Shmadrian I'm guessing it's because it stretches and scratches the throat?

[@HiAdrian]

Youthro Yeah, exactly. (if that's what he meant)

[@S4M4R1T4N]

So its a solid. Cool, got it.

[@libimyheart7855]

My dad told me a long time ago that glass is really a liquid.

[@tboman4128]

He was probably taught that. But we now know it's not.

[@AmanJoshi74]

mam please tell why glass is milky after a large span of time?

[@SiddiqueSukdiki]

My science teacher had just told me 2 days ago that glass is a little viscouse so old windows have a thicker base o.0

[@Missie-gd3jw]

Exact same happened to me lol 😆

[@zakri1990]

is Sand a liquid or a solid ?

[@MrTridac]

Neither. It's like asking: "Is a pile of peas a liquid?" Sand is a collection of small crystals.

[@fremzter]

Why not both? Hue

[@sleepygame1]

Here a good question Is lava a liquid or a solid or both .

[@desertblbuesman]

Thinking it was a liqued, I've misinformed a few people on the subject. Sorry people.

[@zitscx886]

Crystalized glass is sand?

[@oumardiallo7701]

Glass is a more of a superViscous liquid

[@mohabashraf4935]

If that is a liquid what is the solid glass

[@briepstein79]

Okay.

[@BrightIdeatoyou]

I broke the window

[@jkop48473]

Soooo.....is it a liquid or a solid?

[@allieatwood]

This channel has great content and a mix of genders! Empower those female vloggers and scientists!

[@decourtennicolas]

Lol, the video isn't for kids.

[@Brettagher]

Are the ends of her hair blue or is that just the effect of the camera/my imagination?

[@BrainStuffShow]

+Brett Van I had a few blue streaks in my hair at the time. /Lauren

[@Brettagher]

Oh nice. I thought my monitor was going for minute.

[@vaishrox66]

It's an amorphous pseudo solid. It's also known as a super cooled liquid with high viscosity. That's the reason why over time glass is thicker in the bottom than on the top

[@Haralddv]

you clearly did not watch the video bud. What you say has never been proven, like she stated

[@Stormprobe]

By her flawed logic, everything is liquid. Metal and rock and Earth's crust are simply super-cooled liquid.

[@MrTridac]

That's correct for metal, but rock is made of crystals, those are solids.

[@rahxephonmanga9802]

nooooo..........pretty sure glass is a solid...

[@endoftheroad10090]

STOP mentioning centrifugal force, there is no such thing. It's just plain inertia...

[@BrainStuffShow]

Apologies for the twitch I'm sure this gave you -- I get the same twitch sometimes. I was being colloquial. But now I wanna do an episode about the historical idea of centrifugal force to help clear that up. Thanks so much for watching & commenting. /Lauren

[@faroshscale]

I couldn't pay attention to what she was saying. She's so pretty.

[@Qermaq]

She is stunningly beautiful, yes. But lovely to listen to as well.

[@teeess9551]

Eh? Each to their own I suppose.

[@youngwelfare8527]

You guys need energy

[@noneyabidniss]

whaddup lauren? good job on the video but it looks like u didnt know what to do with ur hands and it made watching this hella awkward. u did, however, manage to save this by providing a spectacular view of ur chest muscles. thumbs up.

[@coolnobodycares]

I still think glass is a liquid...

[@OnsideHaddock72]

cool, nobody cares

[@coolnobodycares]

So you are going to be that guy are you?

[@HiramP20]

why cant it be a gas

[@lorddarkseid9445]

Too dense

[@nilin-o2]

who did ever think that? this is so stupid

[@bstix78yfg]

It is a liquid as the oldest windows in buildings in the UK over 200+ years already thicker at the bottom and now very thin at the top. But I guess in the USA you don't have the history to determine that

[@Kodeness]

Are you kidding me?

[@karthikgolagani6844]

I couldn't concentrate on her words..u know wat I mean

[@jjptech]

which words?

[@LucysArt]

jack AKA karthik What's wrong with mans ? -_- Why do you always think of that one thing ?

[@Haralddv]

we were actually not looking at one thing but two of them to be exact

[@TheFoxMcfat]

german last name

[@BrainStuffShow]

My family pronounces it super incorrectly: "VOE-gull-bomb". Sometimes with a proper "baum" at the end. Definitely never with the "F" sound at the beginning. /Lauren

[@bambangsibarani2311]

booooobbbbbbsssssssss

[@luangu]

....Oh, I would definitely like to leave a comment down there (watches her hands...), if ya know what I mean (wink wink)....

[@xrbeattx]

wow this woman is smoking hot

[@QualiT_Check]

First :D