Primitive Glassmaking (Creating Glass from Sand)

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Have you ever wondered what the secret is to making glass from scratch? Today I'm teaching you about the origin, the components of glass, and how to create glass STRAIGHT from sand using primitive technology.
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How to Make Everything
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TyelorD, Daemon Rene, Amelia Grant, Kevin Shuttic, Erik Språng, Daniel Sixta, Lee Schnee, Iain Bailey, Sean Brooks, alex latzko, Stephen DeCubellis, Fruitymasterz, John Gregg, alkalinekats, Lana Sinapayen, Daffyd Wagstaff, Chad Nodo, David Beckett, Adrian Noland, Estoky Designs, Eric Moore, Phil, Benjamin Maitland, Sandy & Jayremy Lester, Larry Ullman, Skylar MacDonald, Maimus32, Stephen C Strausbaugh, Dylan Rich, Jason Kaczmarsky, Antonio Rios-Ochoa, Liz Roth, Jason Lewis, Andrew Nichols, Susan M. George, and Daniel Laux
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Created and Hosted by Andy George
Co-Hosted and Assistance by Lauren Lexvold
Camera and Cinematography by Daniel Garritsen
Primary Editing by Joseph Knox-Carr
Music by Taylor Lewin: taylorlewin.com/htme

[@htme]

Try 5 pairs of glasses at home for free at warbyparker.com/htme

[@antagonizerr]

Your kiln location just screams forest fire with all of that dry grass around it. Sparks can fly pretty far.

[@wiktor_nosa]

*next video: MAKE PISTON from simple items* pls (imo mc is real)

[@JonathanKayne]

Tuyere is pronounced "Tweer"!

[@williampatton632]

What happened to analis

[@eliolira6113]

You should make a giezo

[@mrpenisman5705]

Just imagine the neighbors going "Dammit! Honey the neighbors being a caveman again"

[@pickelboi872]

Lol

[@austinbevis4266]

Shit, I would join him

[@jackwelborn7989]

He only begins as a caveman, but not always shall he stay caveman.

[@jamieevans3666]

@@jackwelborn7989 yea but the neighbour in question dont know that

[@trulsdirio]

"Shut up Karen and Kevin, or my next projcet will be to make varios things out of your bones."

[@avoirdupois1]

I love the fact that Andy shows all of his failures. It makes it clear that this kind of technological advance is difficult.

[@inmyopinion6836]

EACH advancement was made from a previous success with one less step . These were the scientist of their day .

[@adamtwelve]

it's just frustrating that a lot of the failures are simply due to rushing through things and not putting that final 10% of finishing work that separates a quality result from a failure. In this care for example, they could have spent an extra 30 seconds on each brick to properly form them instead of just sloppily slopping the clay in. Then they should have fired the bricks properly, wouldn't be that hard once they get a system and flow going.

[@inmyopinion6836]

@@adamtwelve My thoughts , exactly !

[@ParallaxView111]

Primitive Technology (channel) makes better kilns, and that's a guy rubbing sticks together to make a fire.

[@munkyusm]

​@@adamtwelve That's part of the learning curve. But also keep in mind that they are filmmakers on top of all of this. So imagine trying to do the work to learn how to build these things, but also filming it and editing it and narrating it and yada yada. You have to cut corners somewhere or else you'd spend a year making this video.

[@beetrootmcguillicuddy4185]

"FISH?" When sieging a castle you want to bring a herd of pigs with you. When sapping the walls you add the pigs to the fire which raises the temperature high enough to make the earth above become brittle and collapse the wall above it. Dried oily fish have been used as a fuel by many people and continued into relatively recent times in the form of a ferry that once crossed Lake Michigan fueled by dried sturgeon. Maybe the original artist is suggesting that oily fish will help bring a high stable heat.

[@klonoaorinos8454]

This is why I come to comment sections on these types of vids. There is always someone with a bit of knowledge I had no idea about.

[@Menuki]

Setting pigs on fire was also a crucial tactic in scaring war elephants

[@The_Mad_King]

Well said Sir

[@mariobudal8850]

Sapping walls? Add pigs to the fire? Make the earth _above_ brittle enough? I don't even know which questions to ask to begin to make sense of any of this. But... animal fat burns. Yes.

[@JustHear4DaPopkorn]

So THAT'S WHUT HAPPENED 2 HUMPTY DUMPTY

[@TheTylerJWalker]

Soooo everything you are doing has been a HUGE part of my art practice. History, anthropology, materials science, applied vs. Theoretical science. Experimentation. I have worked in just about every facet of the arts and commercial/industrial fields in pursuit of this same goal. I LOVE WHAT YOU ARE DOING. I would LOVE to contribute any experience or knowledge I have developed to help you you out.

[@declankim2977]

I wonder how long until he makes a fuse lock musket. He has almost all the materials he needs, besides potassium nitrate I think

[@Prestonian1]

He could, except from the fact that he would be demonetized

[@Sketchy_Dood]

Prestonian 1 Cody’s lab reference? Or just generally making guns

[@izzudinishak1841]

Isn't potassium nitrate can be obtained from fermented urine or bats' guano?

[@Sketchy_Dood]

Izzudin Ishak I think so, getting doctor stone like up in here

[@riograndedosulball248]

Yeah, when they reach medieval europe they can start messing around with handgonnes

[@saikyawthanhtay8933]

The real dr. Stone who would survive the reverse

[@vladimirlenin843]

Senku is definitely not going to do this if he don't have to

[@JupiterVortex]

@@vladimirlenin843 he did make glass tho

[@kingjay9554]

@@vladimirlenin843 he did

[@starstrangledmanwithaplan8148]

@@vladimirlenin843 He did make glass. Did you really think earthenware can hold off sulfur?

[@sniser360]

@@starstrangledmanwithaplan8148 much like H²SO⁴

[@bobo9537]

Thank you for showing how hard and tedious it was to live before modern tech Your dedication to hands on trying out your explorations is TRULY AMAZING admirable

[@tylervercetti4187]

10:20 The clay was actually way too wet for making bricks, it should be a lot drier and harder, somewhat like the consistency of hard dough. The clay being too wet could be harder to handle, and more importantly it will shrink significantly and unevenly when drying, causing the brick to have inconsistent shapes or even cracks.

[@zachstufflebeam8915]

I couldn't tell for sure, did you add straw to your clay when making bricks? That's important. Some kind of fibrous plant material, such as straw, grass, etc, it adds a lot of strength to the bricks.

[@fellipeparreiras4435]

They shrank too much too, maybe less water..?

[@michaeljones4049]

@@fellipeparreiras4435 I was thinking the same thing and also just taking a bit more time for consistency. Brick material was lumpy as

[@Mr2winners]

Also too much water in the clay of the bricks Edit: the clay should be really dry like the moulding clay your clay you use for the vessels but even drier

[@lectorserelith]

Yeah no straw, and only firing one side of the bricks are real head scratchers. I really like this project but some of the 'successful' projects are ugly and not successful at all.

[@michaeljones4049]

@@lectorserelith It's my only annoyance with HTME, if they put a little extra effort into things their projects do so much better and actually succeed. Like primitive tech is a good example of this and good to be learnt from for where they are on the tech tree

[@Rhen5656]

The bricks need a lot of work it seems. As other people have mentioned they probably could use less water to reduce deformation. A tip I saw on primative technology was to use wood ash with water on the brick mold to allow it to slide out more easily, but also being dryer would allow it to slip out more easily too (also using wood ash on the floor to prevent it from sticking). I believe the design of your kiln was also pretty flawed, if you're using rectangular bricks you should be building a square kiln (make sure to make square bricks too for end pieces). If you need to make a cylindrical shaped kiln you should be using trapezoidal bricks, where the interior angles are 75 and 105 degrees respectively (for a 12 sided circle). One more thing you missed is the critical step of firing the bricks (you can test to see if they're fired by putting them in water to see if they dissolve, if they dissolve then they weren't properly fired). When you put them around the fireplace all that did was dry them, which isn't bad but it doesn't make them fired; they should glow orange/red or be close to glowing. I've never made bricks in my life so feel free to disregard all of what i said, but there's lots of videos about how to do this stuff on youtube (e.g. primative technology)

[@SF-li9kh]

I have a cottage industry manufacturing bricks a few kilometres from my home. They fry the bricks like this. Maybe because it's not practical or cost effective to fry each brick on a grate. Ghe bricks they produce are surprisingly good quality. I guess it also has to do with the quality of clay and the compaction. (All done by hand mind you). About the shape, you are absolutely right. I have always seen rectangular structures with bricks. Never a cylindrical one.

[@hempwick8203]

lmao aka you binge watch primitive technology videos and related stuff, youtube phd telling this 1.58million homie what's up I gave the video a dislike, I was so let down by this, what a waste of all the resources and oppurtunity they have, just throwing it all down the drain probably eating processed food and being a little lazy.

[@jenniferschmitzer299]

@@SF-li9kh I guess it depends on the era, Ive seen semi cylindrical bricks on post war houses. Ive got a heap of 100 year plus bricks in my backyard plus shitty coal and slag. Its just everywhere here.

[@michaellang9154]

Did you watch the same video as I did? Where some guy built things in the jungle? He burnt I think coconut husks for the ash. He built a kiln and a fan. I also thought that the bricks were not uniform enough and not fired properly. They have to glow red. First dry them. Then dry around a fire and the fire them in a kiln. I think you have to use way less water so that the bricks hold the form better and dry out faster and more uniform. But of course it needs much more time. I think you cannot rush such things. Today in our society everything is rushed. But in the past you needed time to build things. To make them last. The kiln had to many nooks and crannies and to many cracks. If you build it with better bricks and smoothen it out it will get less cracked and the chance of the kiln or bricks getting destroyed is much smaller. I like to watch such videos but my knowledge is only theory. I never did it myself. But sometimes I will try it out.

[@TheTylerJWalker]

👍👍👍👍👍

[@ezeee3147]

This should be titled “different ways to fail at making glass”

[@STScott-qo4pw]

john plant in queensland - primitive technology - would not have made these errors. i'd like to see him make glass. also, this guy always seems to be having to explain his mistakes rather than pulling it off. i get trial-and-error but this guy always seems to be going off slap-dash semi-prepared like he's simply not thinking things through. interesting vids, tho'.

[@randyvera9541]

Imagine where we'd be today if our ancestors just gave up because they failed

[@ryanmarbut1035]

@Eze Ee I look at it more like he is trying to prove the concept. Which is a lot of work in and of itself. I don't think he is going for mastery, which can take a lifetime.

[@Sayansuf]

The more you fail the more u can learn from mistakes so don't say this its kinda mean

[@potatoboy549]

Glassworking is extremely hard with modern technology, let alone with nothing but chunks of crude iron and clay, so even a tiny piece of glass third try is extremely impressive.

[@BlueBobbin]

She worked with cement, made bricks AND still has great nails!! RESPECT!!

[@realLuisGiordano]

she has beautiful hands, indeed

[@JasmineLajeunesse]

I know how is she staying perfectly manicured through all this ?

[@shashankverma1261]

🤦

[@Aalienik]

The bricks looked and performed like shit though.

[@altonb93]

Its just clay and bricks🤷🏻‍♂️. Her nails weren’t going to get damaged🤦🏻‍♂️. Not impressive at all

[@furrypersoon2842]

Omg, it’s a rare specimen of the Iron Age infrared thermometer!

[@ornessarhithfaeron3576]

And only speak in Proto-Indo-European or Proto-Germanic

[@ivanravenski]

@@ornessarhithfaeron3576 protogermanic isn’t older than PiE

[@keinebuhnefurgrune506]

It is still working. They surely knew what quality is!

[@capnbilll2913]

A more primitive method of determining heat would be. 1. Put substances with different melting points in on a stick. 2. Color of glowing metal for higher temps. 3. Measure thermal expansion of a metal rod, (can be done with a small pivot like a needle).

[@chesterbaconga9279]

Try watching the OG PRIMITIVE TECHNOLOGY to make better bricks and kiln/oven

[@wancrit2317]

i was gonna say, I'm surprised they haven't done lime mortar cement yet. it makes much better mortar and much smoother bricks.

[@redred9000]

Perhaps it's not within their reach right now, either in the time line, or with their materials?

[@wancrit2317]

Emery Weir well the egyptians had it so they can use it, it nay be more an issue of getting shells for the lime.

[@britzwickit]

This.

[@notOEAH]

Yes John Plant's channel is an encyclopedia for these things.

[@easternhills1329]

Once again, the HTME team has put an insane amount of work for one video! The love you guys have for this stuff is infectious haha

[@vladm9384]

Glass flutes were discovered in egypt and other desert regions whenever lighting pierced through the sands. Glass has always been around. I imagine someone collecting a glass flute after lighting striking the ground. Their minds must have made the connection between heat and sand producing glass.

[@rextheroyalist6389]

Despite being lower-tech, wooden molds generally make for smoother, more consistent bricks. Great video

[@wickideazy]

Shoutout to Annalise :) first her and now Lauren doing all the grunt work, they da real MVPs

[@SlyNation]

I know this is an old video, and I am a few years too late, but a couple things I know from tinkering that will help. For Iron smelting, you need to tap a small hole above the bloom and let the slag pour out every 3 hours. Also, its best that once your done to extract the bloom and group hammer it on a hard surface (large oak log) into a dense ball or puck, but I guess it depends on how you plan on using it. For the bellows, cut 2 small holes in the center of your leather. One for your index or middle finger and another hole about 1 inch apart. Put your finger in the hole and use it to lift the bellows leather. The second hole allows air to rush in while lifting the leather. Then before you push down on the bellows just cover the 2nd hole by grabbing it and holding the leather tight while pushing down. Doing this also minimizes negative pressure. Each time you pull the bellows you are taking air away from the flame. I did not see a valve of any kind so that's what the hole in the leather kind of acts like. This way its always adding air to the fire making it burn much hotter which means less time pumping air. You can also synchronize your pumping. While 1 bellows is being lifted to refill the air the other is pushing air out, then vice versa, and a stream of air is constantly introduced. just that small change alone makes a huge difference. Some tips for next time!

[@Meganopteryx]

I really love the reset of this channel, I think y'all are getting so much better at craftsmanship.

[@NoahChrysler]

Andy your journey has been extremely inspiring to me. The amount of time and sheer will required to make these videos is dumbfounding. I’ve been a fan since your first video when you made a sandwich from scratch. It’s been amazing to see you become an expert in so many areas. I remember your first attempt at glass, and your second attempt, and every attempt after that. I remember you being super discouraged after your first attempt. But as you spoke to more experts and learned how difficult it was to actually make it successfully, each failure was less of a blow. And then eventually after a million attempts, you actually did it. What’s even more impressive to me is watching you grow this brand and build this company. I don’t think the average person understand the logistical spiderweb that has to come together to produce each one of these videos. And more than that, we never really see you become angry or bitter when something doesn’t work out. Every level of this channel is done as ethically as possible. Your tenacity, your patience, and your integrity are all extremely inspiring to me. You’re a modern day role model to me and a lot of your viewers. Thanks for doing what you do.

[@florencioalexandre7873]

I definitely agree with you. And what's better is that Andy doesn't just stick up to doing it "the primitive way", as one can learn how to do simple things better with modern knowledge, and after "inventing" a technology he also uses its modern counterpart, so that when doing new projects it doesn't take forever. For me he is a normal person with the skills of a normal person (not so bad that everything is a major challenge, nor someone who can master a skill with relative ease), who just wants to do stuff, learn and understand them. It's the everyday man, that instead of going "eh, this is too complex to be done by a single person", just tries to do it from the basics, without feeling discouraged or ridiculous about it, powered only by curiosity. Definitely someone I also look up to 👍

[@bradleycalvert804]

11:41 Me and the boys waiting for night to pass in our 2x1, slowly cooking metal frags and sulfur

[@trulyidkman]

rust

[@rambam791]

Friendly, friendly

[@kiwibird8441]

Going deep

[@PoisonelleMisty4311]

Fascinating journey through history! Your dedication to mastering ancient techniques is inspiring. Looking forward to seeing your progress as you delve deeper into the origins of glassmaking. Keep up the great work!

[@eeeehale]

Never have I ever subscribed to a channel before now without seeing at least one of their videos through. Your mission detailed at the beginning of this video got me by 1:17!

[@LittleDergon]

I'm pretty sure the reason your bricks shrank and warped so much was because the mixture was too wet to begin with. To make good form bricks the clay should be a similar consistency to fimo or other oven hardening clays- you should be able to roll it into a ball and it stay a ball

[@laurenapolis]

it wouldn't come out of the brick form unless it was that wet! maybe we will skip the form if we have to make more in the future, thanks for the tip!

[@LittleDergon]

@@laurenapolis if you powder your mold it wont get stuck but with different clay you do need different consistencies so maybe your clay shouldn't be as dry as fimo but it was definitely too wet on the first try as they should barely shrink

[@psgouros]

Lauren - HTME fwiw, if you roll the somewhat dryer clay in the grog just before you throw it into the mold, that helps make a release.

[@lufmesquita]

Makes you wonder how the hell primitive technologies guy managed to be so exact on his measurements for bricks and kilns

[@SyncViews]

Not watched it, but recall when visiting one of the places here in England they used a simple wooden frame, not sure from which age, but getting some flat bits of wood and securing them into a rectangle seems like technology that goes way back (or just carve a large piece I guess). Pack the clay in, let it fall out, next brick. Could probably make more specific shapes as well.

[@_wood_sorrel]

✨ *research* ✨

[@itsFisch]

Just simple planning. This guy didn't even make an opening large enough to fit his crucible, smashed it with his pickaxe and then said that the kiln had leaks. This literally isn't rocket science.

[@FloryJohann]

Calculator and website search.

[@Dark78Sabre]

It's the ounce of 'care' put into PT's projects. It's not hard to work with clay ... and simple things like measuring your openings to make sure they are big enough is pretty damn sloppy imo. You can also use calcium carbonate as a flux which is way easier to find and make in larger quantities than the soda ash you were trying to use. Any sort of crustacean shell or similar can be fired and reacted with water to make calcium carbonate. Im not flying to Texas to find that weed (grass) you said to use ...

[@rickcoona]

Congrats on making proto glass! ( pase 1 glass making) I mixed up some sand and flux and lined the bottom of a beach fire pit. In the morning I had some proto glass with a few bits of charcoal embedded into it. I still counted it as a success. ( after. Wire brushing the sand on the bottom it looked pretty good!)

[@malsoonsakit4786]

1st. Grass and goat hair is mixed with mud cakes to prevent blocks from cracking. 2nd. fish on sticks and weeds will ooze fat\oil which will inhance pyro grade. Example: Olive wood is better than palm substance when curing pottery. We burn fig wood to produce caustic ash in making raisins

[@SF-li9kh]

Sawing granite and limestone with copper saws. What Egyptians did to prepare the stones of the pyramid. Would be awesome if you covered that

[@f1shb0nes72]

I think they used chisels on sandstone

[@Hashishin13]

they used chisels I think. Also I'm pretty sure it was sandstone and limestone, not granite which is one of the hardest rocks and substances.

[@LorenWII]

@@Hashishin13 Egyptians did quarry Granite, but used hard rock and fire to do so. Granite was mostly used for obelisks I think.

[@allhumansarejusthuman.5776]

I think it was the Omelcs in central America who primarily did that, Ive heard about Mediterraneans doing that sometimes but primarily using chisels hammers and splitting. and it wouldn't be called sawing, they used hard sands as an abrasive against copper rope or wooden tools. Its unknown what material for certain, but that's called Lapping.

[@SF-li9kh]

@@LorenWII No. The roof of the king's chamber has 6-7 granite blocks

[@ravenpineshomestead]

Your clay for the bricks was too wet, and mixing cob into the clay would help it hold together

[@joshuabarber7432]

WAB: Wet Ass Bricks

[@mark78737]

As if you're a brick expert, what makes you think that he made the bricks to wet

[@mark78737]

Shut up keyboard warrior, He's been using the scientific method to discover and explore the possibilities of making a very clear glass while youre there sitting your ass of a comfortable couch complaining how he made bricks to wet like what's your problem

[@ravenpineshomestead]

@@mark78737 1. I've been present while bricks have been manufactured at a living history gathering 2. I've been using clay most my life and I know soggy clay when I see it and 3. it's called CONSTRUCTIVE CRITICISM you toad, I want to see them succeed as much as the next guy but helpful suggestions go a long way. Now quit being a tit and go try it for yourself "keyboard warrior" 😂

[@7slovenia]

@@mark78737 Honestly those bricks look like crap, a child would do it better. Like the other guy said TOO wet and no biding material like straw.

[@phdtobe]

I’m glad this video was made. I’ll be sure to use it as a reference when the Reset occurs!

[@whysoserious2951]

I have always been interested in history, and I find this very interesting. Keep up the good work. I like and subscribed.

[@smyLor__________________]

It's awesome to see all of the hard work of the HTME crew paying off; it's kind of subtle, but the knowledge gained through things not going to plan and yet persevering through that is apparent. Thanks once again for being an inspiration!

[@JohnLeePettimoreIII]

The clay used for those bricks was _WAY_ too wet. The clay should have been drier, and more like slightly damp modeling clay.

[@muefive]

My vote for BEST KZbin PRESENTATION EVER - Joe Brunner (multiple engineering degrees from U C Berkeley graduated Tau Beta Pi) - Superb my favorite by far!

[@sirnikkel6746]

Senku is proud of you. Now you are one step closer to chemistry.

[@lKaiga]

Dr. Stone really does have the best live actions

[@nonamemage6599]

After we get this done we can start work on the sulfa drug

[@Isheian]

I ten billion percent see what you did there!

[@indoorsandout3022]

He still needs to extract phenol from coal tar. And if he burns himself he can always treat himself with dilute picric acid, which is also made from phenol...

[@alanwolf313]

I find your idea exhilarating

[@akbarrmd7714]

Seeing Senku give Suika her improved helmet really makes me cry.

[@indoorsandout3022]

@@akbarrmd7714 fun fact: Suika means "watermelon" in Japanese.

[@abhiseeker1579]

Guys are doing great hardwork..hats off❤

[@Strenger_planet]

The kinda videos▶️ deserve to be on this KZbin▶️ platform. man you r genius, your all videos are so knowledgeable. Thnx man for sharing your knowledge with us ❤I lov ur channel.

[@tmtom_8155]

11:42 that's some good ray tracing you have there.

[@EvilSl0th]

me thinks your moisture content in the bricks was a bit high when put into the mold. also, your mortar was very squishy also. also, when making bricks, dusting the mold helps with release, and use a flat anything to pull excess clay from the top. your bricks could have been much more uniform

[@barbiejake4801]

It makes you wonder how hundreds of years ago inventors made glass ornaments kitchen utensils & pieces of furniture using glass as they didn’t have the type of materials used in today’s time, this man is is so smart, I really enjoyed this video it’s very informative,👍🏽👍🏽👍🏽🥰🥰🥰

[@NathanHarrison7]

Dude is dedicated to discovery. Lot of darn work. Like watching ancient history happening live. Thank you.

[@Johannes_P]

I just realised this is a “how to doctor stone” series

[@austinbevis4266]

Wtf is that

[@thisusernameistaken2548]

Basically

[@aname8155]

@@austinbevis4266 Doctor Stone is an anime

[@hntersguild6570]

@@aname8155 A great one.

[@squishfaceofsaryrn]

@@austinbevis4266 in a nutshell, it's about a smart dude that has to reinvent everything from scratch. No books, internet or other people to tell him how to make glass or any other inventions we take for granted.

[@connorhixenbaugh1567]

Loving this Dr.Stone vibe. New here, second video for me

[@thefriendlymadman229]

Meet how to make everything, my irl locked Ultimate Ironman. After recently making a KZbin channel I decided to up the ante to forge my own journey from scratch. No buying, no helping making everything for myself. All leading up to eventually taking on one of lifes biggest challenges: building a Ford escort.

[@rodyates2669]

Your bricks would be a whole lot better if you added a fair amount of sand . (As much as 35%, and 5% silt, with more sand for the chimney bricks.) This allows the clay to shrink as it dries, with less cracking. Your also should add finely shredded straw or grass because this helps to counteract the tendency for bricks to crack while drying. It does not have any real value as reinforcement once the brick has dried, as you suggested. You'll find the ideal blend of clay, sand and silt at some point where an old river turned around a bend, and deposited it , already graded. You'll also improve your bricks by adding protein such as casein, which can be sourced from fresh cow manure. Add about 5% and see the result. Another good additive will be a detergent, or a deflocculant. Its an interesting experiment to try different ratios.

[@GamerXBoi]

He''s actually steve from Minecraft lmao

[@IdaeChop]

ikr

[@KainYusanagi]

Using GregTech. Lol.

[@monke6912]

Whit mods

[@SimuLord]

Minecraft meets Dawn of Man.

[@imjustaguy4340]

I wana learn the skills

[@mikedrop4421]

When he started this channel a few years ago I thought it was a neat idea. Now I'm pretty sure he's gonna be the only reason our species survives 2020.

[@justinwizard4776]

At least us subscribers anyhow. Haha.

[@SimuLord]

@@justinwizard4776 See you in New Uruk. Chicken wings and hot sauce around the fire for everyone.

[@mightisright]

Ha ha. He'd be dead within 6 months of the apocalypse, if he's lucky enough to be near fresh water. None of his stuff is useful or functional and he hasn't improved at all since he started this dogshit channel. Hope you have better teachers than this Minnesota hayseed.

[@sufferr2914]

Who spat in your coffee

[@Bruh4.]

@@mightisright who pissed in your tea

[@paulmcguinness4827]

Just discovered your channel. Thanks for the hard work! Interesting and enjoyable video.

[@cavelvlan25]

And we call these people of old primitive? Rhe processes of figuring out what these plants contain and how to extract it alone is a marvel. Especially considering they didnt have any of the research tech we have. Then figuring out it's potential uses. Not tk mention the process of making the glass itself and more or less perfecting it. Mind blowing.

[@ez8314]

I'm hoping we evenually get to see a full boat. Maybe a Viking raiding ship? That would be a big project, season finale-type, but it would be so cool!!!!

[@masterix4021]

I feel like those bricks and the resulting furnace from them is an insult to people in the past.

[@lion714wla7]

That’s not the furnace this is just for heat the breaks

[@mateomaderas5504]

Yep, It’s all incredibly shoddy.

[@thysannifebcagaanan8299]

Senku be like: "It's 10 billion percent exhilarating"

[@fairytail.5307]

BHAHAHAH PLS IM WHEEZING-

[@JETTSKII.OFFICIAL]

The more I watch, The more my fascination with history's creations grows and the more I watch your channel‼️

[@boxorox1]

A key piece of what is missed. When they made the hard wood charcoal for pig iron, the sand would set in the charcoal. It was made by digging a pit and dropping the hard wood in it. After the wood was set and coals buring, they would be covered by sand to stop oxygen from getting in. That would make the charcoal burn longer in the bloom stoves. This caused the byproduct of dirty glass. And would be smelted away when the pig iron was pulled from the bloom. Over time, the reused pits would have soda ash develop and cause more glass, and in turn require more flux for the pig iron. By distilling it often enough, you get clear glass.

[@Bendoughver]

Keep producing the high quality videos. I can really tell your putting in the dedication and time for each video.

[@lordfrostdraken]

If you think that then you should watch Primitive technology. That guy is epic

[@monikasaringer1152]

Good on you for trying, it's crazy how the ancients worked out how to make things and produced such beautiful things

[@lisathomas1622]

WarbyParker should definitely give you twice whatever they gave you for making their sponsorship info awesome. I’m new here, and you got me subbed by 2:27.. you good vibes! 😂 I like the premise and you have my curiosity!

[@yippee851]

New season of Dr. Stone lookin hot.

[@Prismaticmind]

Your first attempts at glass had a lot of smoke which means likely much organic material in the fire which charcoal would reduce smoke as it is closer to carbon. Clay with less moisture in the mould would have faired better and seen less shrinking.

[@user-wu8cb9pz9n]

you guys have amazing craftsmanship

[@d.jensen5153]

Fusing rock flour and white wood ash makes a decent primitive glass. The white ash comes from my wood-burning stove, and is mostly calcium potassium carbonates. The rock flour comes from a rock tumbler in which I tumble agates and rose quartz. The heat comes from a carbon arc. The recipe doesn't make optical glass, but it makes nice pendants and other jewelry. The provenance is kind of cool, too, especially when customers provide wood and-or rocks that mean something to them.

[@Kirby03]

I can’t wait for him to make the first engine

[@allhumansarejusthuman.5776]

He only needs to get to the Roman era... Technically anyway. Modern knowledge in chemistry and physics where big bottlenecks

[@SF-li9kh]

He's unlocking technology left and right without any real success. Going like this he'll make an engine using a spanner, screws etc

[@keinebuhnefurgrune506]

Medieval W12 diesel engine?

[@M3A7]

This channel is pretty trash, ngl.

[@SF-li9kh]

Honestly I'd love to see your next smelt. The last one was not great. I wouldn't consider that as iron unlocked.

[@jesusllanas9318]

Sams he just needs a better design he should take notes from other KZbinrsw

[@KainYusanagi]

Tiny little iron prills were in fact the first forms of iron produced, and those were then smelted together to for bigger, more usable pieces. It was in fact iron unlocked, just not full blacksmithing tier iron.

[@dmo848]

I find this really really neat. Totally dig this kinda stuff

[@rp1174]

This is exactly the channel I was looking for!! M glad to have found it!!

[@raymondbiskner6885]

"Not sure why they put fish in there" Glassblower's gotta eat, mate.

[@keinebuhnefurgrune506]

Better to put fish in there instead of glass. Fishblower's gotta eat, mate.

[@eastportland]

Happy to hear you mention Annalise. Her contributions and dedication in earlier episodes were major factors helping this channel.

[@jessicag630]

Where is she now? Is she still working with HTME?

[@potatoboy549]

@@jessicag630 They broke up.

[@Rekeronse2543]

this is indisputably in the top 5 of coolest videos I've ever seen

[@colmanpm]

Wow. Makes you wonder how glassmaking ever came about. Top video. Thanks.

[@jacobkoster3808]

Should’ve done a crossover with Half as interesting because of the bricks

[@brainstormhq1287]

omg i thought i was the only one!!!

[@onthecover5042]

Fun fact: If glass breaks into your eyes, you will be blind

[@elbertkingasher1114]

Omg i never know

[@seilorks6610]

hmm yes the floor here is made out of floor

[@yashgangurde1655]

Albert Einstein is so smart 😯

[@elbertkingasher1114]

He is a genius

[@prptaft]

woah!mind blown

[@surendersingal2192]

Wonderfully innovative guys you are to bring wondrous glass. Thank you all

[@michaelvial125]

The secret is in the prep work,it should be down meticulously.Your grass fibres need to be thrashed an not so long.Aim for shorter fibres,Ensure the clay is free of rocks and other lumps,Reduce the water and line the inside of the mold with ash to prevent sticking.The more effort you place into making the bricks the better the end product.Aim for a square or rectangular kiln, with lots of air entry spaces at the bottom.The walls need to be air tight with a small exit hole at the top to draw up the air an increase the internal temperature. Bricks need to be air dried, then dried around the fire and finally in a kiln. Be careful to compress the bricks into the mold an expel all air from inside brick or they could explode when been fired by the rapidly expanding air bubbles. When correctly fired they will have a metal clink when hit with metal tool. good luck with your future endeavors.

[@S8tan7]

You can hear the torment in Andy's voice when he talks about the glass Hows them flashbacks bud? 😂

[@souljaceaza]

This is our Dr.Stone

[@imjustaguy4340]

Idk why ppl are complaining about the bricks there efective and hand made Wow that glass just looks nice its like a gem

[@wallypizza323]

This is the coolest channel I've seen in a long time! I hope this series is made into a book...

[@TwoSaltySalmon]

I just wanted to let you know how wonderful your videos are! I think they're pretty inspiring, entertaining and informative!

[@glych002]

Here is some advice: measure things first... it will go a long way.

[@andrewcouzens4962]

Great job on the backing tracks

[@tommyodonovan3883]

In 1436 the Medici wanted to Finish their cathedral in Florence, it needed a roof since its completion in 1295, they thought about a cement dome, like the Pompey Theatre in Rome built in 54(?) B.C. but this cathedral was too big and besides *the knowledge of how to make cement had been lost!* Isn't THAT amazing that the Italians had forgotten how to make it!? Fiore Brunelleschi(?) got the job....When asked what his dome would look like he (FB) took an egg and cracked it on the table so it stood up on its end, the Judges wanted to know *HOW* he was going to build the dome, FB said; *"If I tell you....You will get the commission....Not I."*

[@theblackbaron4119]

After a few episodes: How to make the atom bomb and making Nagasaki look like a trial run.

[@snorttroll4379]

gotta find a pristine city. like the americans did.

[@potatoboy549]

Nagasaki already looks like a trial run. There are literal bombs capable of exploding the entire Earth, Mars, and half of Venus.

[@StarScapesOG]

Is there a way to send you drawings? I have a few ideas on how you can improve that kiln without breaking the: only use primitive technology, limitation.

[@MisterTalkingMachine]

You can join the HTME discord which is listed on the channel page

[@StarScapesOG]

@@MisterTalkingMachine oh come come now, that makes way too much sense! Haha. Thanks for pointing that out!

[@forrestlana]

Dude .. your channel is a life filosophy!.. we all should search the roots of our life. God bless you

[@joshschneider9766]

Btw your final firing cycle is similar to many fused glass projects I've done via electronic kiln controllers using modern glasses. Well done.

[@chasonkeele6948]

I wonder if he'll build a locomotive when the industrial revolution comes

[@FD_Stalker]

Everyone needs to know this incase he or she somehow timetravel back to medieval age and wants to make a living

[@michaelhodgson8272]

Awesome concept! You’ve got another history nerd subscribed!

[@gein2287]

How about that, finally an ad for something I actually need.

[@DinoSpidersTV]

Well, now I'm going to have a decent mornings.

[@lemmonsinmyeyes]

it looks like you got a pretty bad head wound. Be safe my dude, if you get dead or injured I wont be able to escape the stone age!

[@imjustaguy4340]

I cant tell if thats sarcasom

[@ChrisTopheRaz]

Making things from absolute scratch is my passion these days. If you guys were in Arizona I would join your team in a heartbeat.

[@KevinS3928]

Did the making stuff from scratch thing back in the early eighties, ended up with two kids.

[@ChrisTopheRaz]

@@KevinS3928 lol

[@abvmoose87]

Awesome idea and concept, love it

[@dincirkic4974]

CHOP CHOP, you're centuries behind man xD

[@mayankjetly3910]

He be confusing Archaeologists of the future.

[@imjustaguy4340]

😂😂😂oh damn your right

[@glennadams8707]

Whoah...just stumbled upon this...the intro was so good I had to pause it to hit like & subscribe because I could already tell this is going to be good!