Ancient Ice-Making Machines Found In Persian Desert, The Yakhchāl

[@LeafofLifeWorld]

Subscribe www.youtube.com/@LeafofLifeMusicOfficial 🌳 Support our on the ground regenerative projects that make a positive impact on peoples lives & the environment: www.leafoflife.news 🎥 Support our video work, helping us to improve our videos, upgrade our equipment & share more informative videos like this one here: www.patreon.com/leafoflifefilms 💚 Make a one time donation here: paypal.me/leafoflifefilms (make sure to change "what is payment for?" to paying friends & family) Thank you 🙏 Watch how to harvest water in the desert: kzbin.info/www/bejne/sHXEYqtoiraAfpo

[@joegran]

it even looks like soft serve

[@mrferrer9485]

I'm from Iran and I've seen the structure of yakhchals used in "Zoorkhaneh"(ancient gym). This kind of structure helped ancient body builders not to sweat. That kind of ancient gyms go back to more than 1000 years ago. They also had one or a few musicians called "Morshed" who perfomed music during exercises and sometimes gave them peptalks and words of wisdom which is amazing. In addition to body building, they also practiced wrestling in zoorkhanehs. Edite: Thank you guys 🙌🏻🙏🏻

[@LeafofLifeWorld]

Thats so interesting!

[@BeReal918]

Other _activities_ and debaucheries were also performed in these structures 😉

[@MK_ULTRA420]

@@BeReal918 It's all Greek to me!

[@googlesmostwantedfrog147]

@@MK_ULTRA420 You misspelled " projection "

[@Dragon_Iord]

Wow, they must have been walthy to keep a musician in the gym

[@thetruth4116]

Just goes to show how innovative ancient peoples were. It annoys me to no end when people ascribe the construction of wonders like the pyramids to imaginary aliens rather than giving our hard working and intelligent ancestors proper credit!

[@davidschmidt270]

Amen 👏👏👏👏👏✝️🛐🐧🌵

[@beback_]

The human brain has been constantly shrinking since 10000 years ago.

[@RearrangeGinger]

True even though we really don't know the history with the Egyptians and with more info on ufos lately I wouldn't be surprised if aliens helped.

[@DungeonMiser]

It's only because people look at the complete imbeciles that inhabit these ancient places and don't understand that the people who built those wonders are long gone.

[@thepotato405]

Ancient people apparently can't build a triangle but they can create refrigeration thousands of years before electricity..

[@jamiefoyers2800]

I love the shape of these ice stores. Pretty cool and purpose built...ancient builders knew what they were doing.

[@nunyabiznes33]

They look like pointy sorbets.

[@malkaYAHA777]

Was this pun unintentional? 🤔

[@shreetherock]

booba shaped

[@RandallPerkins-rx7vq]

Indeed, I am certain those egg whites were indispensable.

[@thomasmantifel8579]

Hell yeah! Who needs "ancient aliens" when we have ourselves!?

[@TheSunTheSea]

I love how “yakchal” is the word used for the modern refrigerator today

[@AnyoneCanSee]

Interesting and very impressive. Especially in the desert heat. Stately homes in the UK had icehouses and they also have pointed roofs. They'd put ice in them in the winter and it would last the summer. They also built massive ones by the Thames and they would ship ice from Norway store it in them and then have ice deliveries around London. Restaurants would just get a big block of ice delivered into led-lined rooms and store food in it. This is how people refrigerated things before fridges were invented. If you Google "ice house found under London street" this is one from the 1700s discovered under a London street in 2018.

[@scotthughes7440]

Desert heat? Deserts get cold too genius. That's why they take ice from a frozen pond..

[@zaxmaxlax]

In the 1800s there was a whole industry of harvesting and shipping Ice from norway/north america to the rest of the world. You could get a cold drink in brazil or egypt in the middle of summer.

[@stephanieyee9784]

The engineering and architecture of these structures is amazing.

[@queweamiraitantofeoculiao5826]

yet westerners love to pretend ancient civilizations were savages.

[@falilousarr2744]

And without computer for simulation 😊

[@shapursasan9019]

The Sassanian Persians were amazing people--and then came Islam and ruined everything!

[@KoroushRP]

@@shapursasan9019well we had the islamic golden age which was carried on by Persian muslims.

[@shapursasan9019]

@@KoroushRP None of them were muslims. They were all Zoroastrians like their forefathers before them. They just had to pretend to be the same religion as their Arab slave-masters in order to be accepted in science and academia. Islam has been a dark plague upon Persian civilization from day one-as it has been to every other civilization it conquered and destroyed.

[@beut6151]

In Viet Nam, it’s called “giếng trời”. We saw the same structure from caves and found that it really helps reduce moisture, increase air flow for cooling. But we do not make a refrigerator out of this though, we apply to home architecture. It still a challenge. A vacant ground and hollow like vertical space is necessary for this type of home design, but there is not much space to do so. Some construction companies used this idea to attract homeowners, and it turned to be a complete failure (the lands were just too small)

[@LeafofLifeWorld]

wow, thats very interesting thank you for the information

[@nelsondog100]

Greetings from the Philippines! Thank you for informing us about this. I think it is very interesting and will research the topic more. Have a nice day.

[@nbeizaie]

there are many old houses with similar construct in Iran too! actually the whole Yazd city was made out of those kind of buildings because it is in a desert. Many of the homes goy ruined several years ago due to earthquake and some got demolished to make room for "modern" homes but there are sill many of those buildings left that people are actually living in/using.

[@StrangersIteDomum]

Seems like the ground is too wet in Vietnam for this?

[@TDQ_Gaming]

@@StrangersIteDomum Ya, the video didn't get into how evaporative cooling works but you need dry air flowing over water. Evaporating the water takes energy and cools the air.

[@MaxwellBenson80]

I had no clue that these structures existed. Thank you for sharing this with us!!

[@j.tamburello4053]

they did it without refrigerants or polluting. I love it.

[@monkeymanwasd1239]

Other countries had ice houses too this is just a big example with a large drainage system underground

[@scotthughes7440]

they didn't freeze it themself genius...they took it from a frozen pond..My lord people are weird

[@monkeymanwasd1239]

@@scotthughes7440 dude we already know that and technically they did have ponds that they actively built or maintained for this purpose you're the one that's being weird here

[@DonOmarRamiro]

yeah, and a lot of hard work. I just press a button and get ice.

[@GaydolfShitler]

Is it feasible for a population of over 7 billion people? Keep dreaming...

[@gseric4721]

Would be awesome seeing the process of one of these things working and operating in current times. That would be extremely cool.

[@janalee6358]

Literally 🙃

[@RedPillSurvival]

Really. Would be nice to know the actual temperature inside vs outside.

[@iMadrid11]

They should built a replica nearby to demonstrate how it works.

[@Yosemite-George-61]

better not... the energy tycoons would kill you...@@iMadrid11

[@koriifaloju2051]

There is a few recently built around the world using such old architectural solutions The office complex in Harare Zimbabwe is a great example, fully passive cooling using thermal mass subfloor storage, natural biomimicry, conduction and convection Also in Mexico they (re)deploying similar techniques used long ago but recently revived, to keep buildings cool without a/c energy demands Humans (& nature) have always figured out how to adapt when necessary

[@LesterMoore]

While not Persian/Iranian, I still take pride as a human from our ancients who so capably demonstrated genius. This ice making factory demonstrates pure ingenuity.

[@sigertjohansen]

Of course, Thinking the ancients were less intelligent or creative than the moderns is a common prejudice. They knew a lot of things we slowly rediscovered along the centuries, and some technics are lost forever.

[@LesterMoore]

@@sigertjohansen Your words and thoughts are so sadly true. I greatly anticipate every new archaeology discovery.

[@rahulk2633]

Until islam came

[@believeinpeace]

Thanks!

[@LeafofLifeWorld]

Welcome!

[@believeinpeace]

@@LeafofLifeWorld I really do hope you receive most of the money and not half of it

[@Alex-dw9im]

I am 70 and remember using Ice from Yakgchal before refrigerador came to our life in Tehran, some year water could freeze and fill the yakhchal, some year not, so They were bringing ice from the mountain. Afer refrigerator came, these yakhchal were converted to zoorkhaneh for traditional bodybuilding before gym came to our life. another genius design in Iran was cool water reservoir, thousands were built in deserts for travelers totally self maintained. and Qanat, amazing. Iran was amazing country till islamic regime came and destroyed iranian culture.

[@Natty183]

The predator that is my "government" had to destroy your beautiful country for the centralized control of the world's resources. They were busy sequestering resources and tech and now they will pretend that 80 years of sequestered tech is "alien." Don't worry though, the predator turned on those that created it, too. These idiots in this country still don't know what they've funded and abided. Try to tell them, lol... doesn't work, they only hear what their masters tell them. You knew their original power, they've gotten a bit more advanced and are basically their own civilization now and Americans think they work for us. 🤣 💔

[@alvarorubiodomech8327]

Still a lot of Iranians mad at the Arabs for their invasion. Also, the Mongols, The Middle East have jet to recover from the mongol's destruction.

[@JS-jh4cy]

How or what where the design characteristics of these resovairs

[@lol-fm4yp]

islamic regimes were part of iranian culture for the last 812 years, at an age where the roman empire was still standing. free to you to deny it and cry, unless you are talking about THE islamic regime after the last revolution

[@vondahartsock-oneil3343]

Sumerians did this first, and everyone later just improved on it.

[@NK-xw8ok]

This is definitely one of the beautiful things that comes from having the ability to access internet! It’s amazing knowing that we have the ability to discover and Learn about such amazing things! Without having to travel to said places! Amazing !

[@ronliebermann]

This isn’t a secret, evaporative coolers have been around for centuries. But there’s an interesting detail which isn’t mentioned in this video. Thousands of years ago, they used evaporative coolers exactly like this building to condense water out of the desert air. The coolness of the water in the pool is used to cool the upper bricks by thermal conductivity, so that more water condenses, and then drips down back into the pool, resulting in an endless cycle. It’s a self-powered condensation well.

[@LeafofLifeWorld]

Thanks we did mention it here though 4:46 kzbin.info/www/bejne/oYSop2Wsapqfh6M

[@80xdplays88]

yeah thats why its called ancient Iran had these since atleast 400bc

[@jacksonblack9408]

But I thought Dune was set in the future

[@ronliebermann]

@@jacksonblack9408 It was. But the vagrant Spice-Heads time-travelled into the past to water the Rodeo Worms.

[@htomerif]

I hope you understand that using an evaporative cooler to condense water is literally meaningless. You would condense, at most, exactly the same amount of water you would evaporate.

[@jahgsdjashdu]

Love the excellent engineering and foresight of the Persians!!! thanks for sharing

[@tomadams2319]

You shoud do one on "Bad Girs" wind catchers, which are ancient Iranian "swamp coolers", and also do one on Quanats, Iran's underground aquaducts, which bring fresh water from mountain slopes to desert valley towns and farmers fields.

[@vondahartsock-oneil3343]

Handed down from the Sumerians. Sumerians invented all this "tech", everyone later merely improved on it. They kept ice, cooled water etc....cooled by evaporation using straw

[@originsdecoded3508]

@@vondahartsock-oneil3343 meanwhile, Aztecs, mayans, Ancient south America looking at you asking, everybody?

[@dondouglass6415]

I have no words.... Utterly amazing!!!

[@yosemitejam]

We need these in Arizona!

[@LeafofLifeWorld]

Agreed 👍

[@idk9637]

For what? We have freezers, refrigerators, and air conditioning...

[@yosemitejam]

@@idk9637, Is energy independence is not something you want to achieve, or even being more energy efficient?

[@abuhajaar2533]

@@yosemitejam If you have the property and water access then go for it but it's probably a full time job attending to it too, not to mention building it and maintaining it. Also, you should make sure the night weather in Arizona is cold enough for this to work.

[@earthlingjohn]

@@idk9637 Defeatist

[@Ramash440]

I've heard of these ice storehouses before but I never realized the ice was made in situ. We all hear about how cold in can get in the desert during the night or in the shade but it's hard to realize how cold it can get. Honestly I thought they simply transported the ice from colder, high altitude regions.

[@waterzap99]

I used to live in a desert. I have pictures of myself standing in the middle of the day with a thick parka on in the winter. At night it would easily go below freezing. There wasnt enough moisture to make ice, but it would get extremely cold.

[@teeanahera8949]

The ones that kept ice all year round were from high altitude desert locations and were several degrees below 0ºc (freezing point). (Btw he said lemon juice was in the mortar but he got that mixed up with lime from which mortar is made.)

[@Wolffur]

I presume that they simply brought the water in and let it freeze. Bringing in more as needed.

[@mansari7310]

​@@waterzap99 what desert you are talking about .Iran isn't like Arab countries. no body live in desert in Iran are like Grand Canyon or Utah desert as opposed to sand desert that exist in Arab countries . in the winters in Iran we go and ski and yes, on the snow not on the sand kzbin.info/www/bejne/g16cfKh8Z9uKrsUsi=WgLoEsYiyUWRHOpE

[@FlyGuy2000]

Look up cold sinks for an example of how they funneled the cold air into these mechanisms to make the ice.

[@alibeyzae7445]

fun fact we still call the refrigerator "yakhchal"

[@sorousha.s9002]

@@juli_gotshal iranians

[@NemoNoone-p3p]

So what do you call a cooler?

[@smarsh6340]

@@NemoNoone-p3pinterestingly the word Cooler is used for AC or air conditioning system in Iran and what we call ice chest or cooler in the US is “Yakhdan” if I’m not wrong, and the freezer is freezer 😆

[@Yadeehoo]

That makes sense. Brilliant design

[@whosaidso-org]

The word yakhchal [ یخچال ] literally means "ice pit".; the Persian word for refrigerator is also yakhchal.

[@lambert801]

​@AZ-zn9lgWhat the hell is wrong with you?

[@CLXCL]

​@A Z I think you are confusing Persian with Arabic. No surprise here coming from ignorant phool.

[@alecempire1499]

@@CLXCL i agree. many are confusing it. but both languages are very different. espacelly in their melody

[@Svettulf]

@AZ-zn9lg Why would you even type out a comment like this?

[@Thefire591]

@AZ-zn9lg???

[@Marathayash8672]

Ancient Persians were such a developed society ❤

[@bostonbruinsfanboy]

Now 😔

[@UnknownUser69698]

Funny how you have to specify just the ancient Persians were developed 😂😂

[@sweetLemonist]

My fave ancient people! Today's Iranians are also absolutely amazing. Very smart and hospitable people. I hope they can get rid of their oppressive government soon...

[@occamraiser]

Mesopotamia DID do most things first - hardly a shock since that's where agriculture (and hence cities) started. The people who start first DO often win.

[@Bakaaahsjflflakahhdkf]

@@UnknownUser69698 funny how you have to specify that there were no undeveloped areas😂😂

[@wgt7537]

What a marvel of technology! Almost unbelievable! Lovely video essay mam, keep up the good work 😁👍

[@AkkashMalhotra]

LOVE PERSIA , HISTORY & CULTURE ❤

[@yazdtourism]

Ancient tech is awesome sometimes. Something they used to do in India. In the state of Rajasthan there is a desert and lack of rain. They used to build water tight terrace and attach pipes so that the rain that fell on the terrace can be stored in an underground tank. Then they also build rooms next to this tank which will be cooled...

[@consciousobjector2507]

*MANY* times.

[@broomStivk]

There is no india back then, only cow

[@Maryam-tt3wl]

i was in Yazd this Nowrouz and i visited this place! Breathtaking!

[@muhammad-bin-american]

No pollution. No greenhouse gasses. Just common sense. Remarkable!

[@ksgraham3477]

Oh, but the permitting process and zoning!

[@jaybee1570]

It would be cool to see one still in operation today!

[@wenmoonson]

Icy what u did there.

[@TheEyeOfHorus69]

It is...if you freeze the video you will see and ice in the making.

[@jimmycricket7385]

Very clever. The Persians / Iranians have always been clever.

[@danak.9513]

Finally an interesting side of KZbin, thank you for your videos

[@originsdecoded3508]

This can be used for more then just ice or preserving food, it can literally be used as a home with constant air cooled environment from the heat of the dessert by manipulating certain factors about the design.

[@JazminKing-g9v]

It would be cool to see one still in operation today!. Ancient Persians were such a developed society .

[@EndlessResentment]

Even the wall that shelters the pit from the water is beautifully designed and decorated

[@Seekay-oe3qz]

I learnt something, that's bloody brilliant ! Necessity is the mother of all invention.

[@bold58]

It would make sense considering that in the 19 th century even in Europe and America they had ice houses some of which were simply layers of ice with layers of saw dust between them stored in a building with a large dug out area to keep the ice below ground level.

[@riversedgegoatdairy297]

Ice sheds are still used by the Mennonite community here in Ontario. I also recall my grandfather harvesting ice off of Lake Ontario each winter in the 1950s. My father was a kids and use to buy a block of ice for a nickle each week or 3 to 5 days. Add this block to the ice box cooler in every home.

[@philip5940]

During gold rush times , ice was shipped by clipper ships from America to Australia. Winter in northern hemisphere is Summer in southern hemisphere. Both the Pacific and the Atlantic/Indian Ocean routes are feasible . Three to five weeks for the journey.

[@vondahartsock-oneil3343]

I remember going to the ice house with my dad clear up til the 70s

[@olisk-jy9rz]

The ones built in northern countries weren't simple layers of ice and saw dust. Most of those were buildings as big and complex as the ones in this video, but built underground or with just the roof poking up from the ground, which is ten times harder but much more effective.

[@NadeemAhmed-nv2br]

@@olisk-jy9rz you do know the northern countries basically imported the ice by sawing it off as they had nothing as fancy as seen in the video above as they had no need for to invent something like above because they had naturally occurring guys

[@The_Real_Indiana_Joe]

Very interesting. I hadn't heard of these before. Great video!

[@willemvanlent6955]

FANTASTIC, WE SHOULD USE TECHNICS LIKE THESE AGAIN!!!❤

[@notapplicable430]

Slave labor was required to carry the ice. Electricity and refrigeration prevent the enslavement of others. Why work harder when we can work smarter.

[@SilverSergeant]

LOL!!!! Ridiculous.

[@vondahartsock-oneil3343]

We did up til the 70s. We had an "ice house" in my town next to the rail station. Same concept except the packed the ice in sawdust. Kept in a building, dugout in the bottom.

[@guyincognito1406]

We do. Conductors and insulators. It’s not about electricity it’s about energy. Learn thermodynamics. You bring enough solid mass of cold to overpower the poor conductive properties of air while sitting in a dug out pit avoiding contact with conductive surfaces, materials science is ancient and ever important to date. Air conditioners or refrigerators use every bit of the same “technique” it’s not gone. Just advanced to where we can use energy a lot more freely with devices to directly move what energy we want where.

[@paulmaxwell8851]

An amazing bit of engineering. And an impressive bit of construction too! Those folks really were a lot smarter than we give them credit for. This would work today!

[@LisaG442]

So they weren’t ice “making machines”, but clever structures to store ice in the heat. Many ppl’s did something similar. Digging pits in the ground and insulating with sawdust was common in North America before the first home refrigerator was invented. This was simply a cabinet you put an ice block in a top compartment and the coolness would sink down to the lower cabinet where your food was. My FIL was an ice delivery boy for this purpose. So not that long ago in our history.

[@SlayerBG93]

The ponds were designed in such a way that they could make make Ice with the air above freezing. At night if there are no clouds objects radiate heat into space. The ponds were filled with cool water at dusk so they would freeze open to the sky despite the air around being a few degrees above freezing. So in a very real way they were making ice. Just not under any conditions. Obviously measures were taken to make sure the water is a cool as possible prior to flooding the pond.

[@olisk-jy9rz]

@@SlayerBG93 They were freezing with temperatures above freezing point? Absolute nonsense. As they explain in the video, the ice was brought from nearby mountain tops. Iran is colder than you think in some places. Or they made ice in the ponds when it was winter and freezing temperature outside.

[@thierryfaquet7405]

@@SlayerBG93 "radiation to the sky" means absolutely shit…

[@SlayerBG93]

@@thierryfaquet7405 Well how do I put this. There is scientific facts and then there is your opinion. I choose the former.

[@thierryfaquet7405]

@@SlayerBG93 yeah sure buddy, thermodynamic just launch a whole new "magic freezing" section. God the idiots in youtube comments are so pathetic. Don’t forget the earth is flat too…

[@mariharrik5987]

I so admire my ancient ansestors so innovative

[@TheNewMediaoftheDawn]

So cool, the genius of “primitive” civilizations, like us moderns could do that…. That is straight science and engineering right there🎉

[@GaryMcKinnonUFO]

Cool :) Liked and subbed.

[@LeafofLifeWorld]

Awesome thank you!

[@smartduck904]

How big is your refrigerator?

[@ellisburton8733]

Definitely not thattt big, but not that beautiful either... 🤭

[@patriciajrs46]

That's amazing. Thanks for researching this for us. Very cool.

[@wmpetroff2307]

I always enjoy history from the great Persian Empire.

[@sbdiaries]

Very impressive design 👏 and thought of the engineers and builders of long ago . Put such to same when you think about it. Greetings from England 🇬🇧 Simon and Beth ❤🙋♥️

[@doubleslit9513]

Have any real world tests been performed to see these things in action in present day? Are they still in use at all? This is fascinating ! 🖖

[@JS-jh4cy]

Been looking for this the 2nd time in two years and finally KZbin algorithm finally finds this... After two years of searching on the topic

[@danityvanityinsanity]

Beautiful! Besides their simple and elegant passive design, I love how they are aesthetically pleasing to the eye! We can learn so much from the ancient people that existed all around the world!✨💖✨

[@jaredsmith112]

They could learn multitudes more from us

[@alanschuetz9552]

I’ve never heard of this before. Thanks for sharing!

[@beberodriguez2358]

Wonderful documentary ... I learned much Salud ✨✨✨

[@LeafofLifeWorld]

Thank you 🙏

[@beberodriguez2358]

@@LeafofLifeWorld your welcome ✨✨✨

[@PlanetJigobotTV]

I always have wondered about ice in ancient times. This is awsome!

[@luongo7886]

I have been an early admirer and lover of Persian History, culture and people for a long time. My hat is off to these fine wonderful people!

[@artytomparis]

Best description so far.

[@lyyliesther984]

I like it when useful things actually look beautiful

[@patriciajrs46]

Very interesting. Thank you.

[@michaelvandamme2694]

I want to build one of those and use it as my house. I live in Phoenix Arizona where summer temperatures frequently top 110°f and has a record of 122°. That would be sweet to keep it cold and cheap

[@d-obvious]

Excellent content! thank you

[@vondahartsock-oneil3343]

ALSO, we still had "ice houses" in my town in the 70s. Same concept, only sawdust was used. No electric.

[@markvisconti4507]

Absolutely amazing. There are several english castles/estate houses that added these designs for ice storage "houses" in the 1800s. Best I've seen are in Warwick.

[@peacefulscrimp5183]

Great video 👍

[@princesschariclea]

I saw in a series about Ancient China that they had ice. Couldn't believe it, but it's true then! Whoa what an invention. 👏🏼👏🏼👏🏼

[@christinegerard4974]

Thank you ! Fantastic !

[@danielpaulson8838]

Real evidence of real human history. In global regions where there are lave tubes from old floes, ice forms naturally in those caves. There are a few low end tourist stops in Oregon and Idaho to stop and see, "The Ice Cave, Natures Desert wonder." In Bend, Oregon there is one about ten miles out of town. Pre-electricity, they used to cut huge blocks of ice, pack them in sawdust and transport them by wagon to town for refrigeration and ice.

[@NO1jkpg]

Ty for this video, this was a question i wondering for a very long time.

[@flutsjah]

Interesting that nowadays we have so many educated people but i doubt many of them (including myself) would be able to come up with this idea. Shows you not to underestimate the knowledge of our ancestors.

[@ShamanJeeves]

While I agree with your point about not underestimating the ancients, I think you're actually underestimating us modern folk. Bear in mind that necessity is the mother of invention; most educated people aren't spending their time trying to figure out how to make ice in the desert because we have ways of doing it. I'd be willing to bet that were the electrical grid to go down worldwide, a lot of these sort of ancient innovations would be rediscovered, likely independently and in separate areas, much as they were in the past.

[@petrektek1385]

Great music choice.

[@OpTiCu]

They don’t collect ice from mountains and during winter, they freeze it at near by site by the big walls, night at dessert ante very cold , the construction is as that it keeps water as cool as possible, at lowest temp of the night they freeze and they store it before sunlight next day, they also keep foods and harvest flog that community village

[@pussiboos21t]

it does say that in the video........

[@Sayhoun]

Its a historic fact that ice has been collected from mountains, which also makes sense when during day more than 40 degrees Celsius, while at night high up the mountains near or below freezing. Methods developed over time.

[@webstercat]

Thanks for creating this.

[@JonnyDIY]

Too "cool" 😁💕👍

[@kailashpatirai]

Amazing idea 👍️

[@mattycakes1161]

Ancient peoples were very creative and worked with what they had, just like we do today. I'm willing to bet these types of innovations go back a lot further than we'd believe.

[@njione]

This would be awesome to apply this to a home in the desert where I live in Arizona

[@shafiqshah3]

In Afghanistan we still have these! In fact most houses are built around these. And we also call freezers or refrigerators yakhchal

[@lambert801]

Same as us Iranians. Allthough, these ancient yakhchals aren't used much anymore, since everyone has a refrigerator these days. We have much in common!

[@lambert801]

Same as us Iranians. Allthough, these ancient yakhchals aren't used much anymore, since everyone has a refrigerator these days. We have much in common!

[@fullcircle4723]

This is new to me. Thanks for the video.

[@Jul-66]

Before anyone thinks of building one (lol) he failed to mention that they only work because the are connected to an underground water tunnel called a _qanat_ that bring water from distant mountain outwashes to farms and cools the _yakchāl_ using evaporative cooling. Without a _qanat,_ the storage of ice year around in a desert _yakchāl_ is not possible.

[@LeafofLifeWorld]

They can be made with or without a qanat, the trick is the ancient ac system they use to keep it cool, which we will explain further in this sundays new video, stay tuned

[@maytee672]

Yakhchal is not related to qhanot. They are dfferent structures. The water to make the ice during cold winter nights could have come from a creek, well or ghanot and yakhchal was designed to preserve it for long warm momths ahead.

[@Jul-66]

@@maytee672 en.wikipedia.org/wiki/Qanat#Applications_of_qanats

[@bluetickbeagles116]

Mind blowing! 🤯

[@israelpacheco7670]

Very interesting! Awesome learning about other cultures!

[@maxfactorone]

Brilliant. Thank you for making this video. 👍👍👍

[@TIGERZY2K]

Reviving of the ancient Persian giant cooling towers technology called Yakchals deserves to be revived in the 21st century ASAP for fighting the menace of global warming.

[@audigit]

This would be a great experience!

[@JenniferMeachamIsHere]

Loving this desert-cooling "hack"!

[@JamesMarcosChocolate]

These would be great places to be during the heat waves and heat domes happening now. Also using them to condense water out of the desert air is a great idea

[@zezegambles]

you realize when these were built it wasn’t a desert it was a lush rainforest

[@alanmorris4992]

Thats ingenious!

[@drgeoffangel5422]

To cool anything, you need to extract heat from that object, and providing that you continue to extract heat from the object at the same rate, or a greater rate than the object is being heated by the ambient heating conditions, then slowly the temperature of the object will fall. This is basic physics. Thus to cool water held in a vessel, whilst the outside ambient temperature is very hot ie 40 degrees Celsius, is a challenge, but not impossible. Bedouin tribes cool water down in large clay vessels, that are being blown across by the warm desert winds. The clay vessels " weep" and the moisture on the outside of the vessel is subject to natural evaporation by convective air currents. The evaporation of the water on the vessel walls, cools the walls of the vessel, which then by conduction through the wall of the vessel, cools the water therein. The process continues and the water within the vessel, again, providing that the vessel does not gain heat from the surroundings at a greater rate than the coolth being extracted, will continue to cool down. Evaporation can lower the temperature of water by 10 degrees Celsius. If the water within the clay vessel, is continually cooled down, it could reach 2 to 3 degree Celsius, however , I am not aware of this cooling mechanism being able to freeze water! To cool the water to 0 degrees Celsius, demands a huge amount of energy extracted from the water, which is not provided by the evaporation cooling process alone. The Bedouin tribes know what they are doing! Chilled water in the middle of a flaming hot desert! My hat off to them!

[@0ooTheMAXXoo0]

You can see ice, frost, on plants when the air temperature is above freezing. Heat is lost, radiated to the cold of space. In the desert they would make shallow ponds with walls around so the radiation lost to space was greater than how much the ambient air flow would heat it and so be able to create ice in the desert night when temperatures were in the mid forties.

[@robdixson196]

This is super cool.

[@friedrichvolkmann]

Same principle as the ice cellars (Eiskeller) we had in Austria. If find it interesting how peoples all over the world (see also @beut6151's comment) developed the same techniques independently, like convergent evolution.

[@davidb2206]

Except the Incas and Aztecs.

[@johnnyfoo8737]

so much knowledge buried in our past

[@simsarabin]

In Iran we still use the word Yakhchal (یخچال) for home fridges

[@facitenonvictimarum-2245]

Not a freezer or an ice maker, just a place to store ice from the winter as long as possible into the summer. Many cultures stored winter ice for later use.

[@paulaldo9413]

Modern thermodynamics and fluid dynamics hadn't even discovered yet, and these people already knew what they were doing. that's beyond amazing.

[@JMYaden]

Amazing! Thank you for sharing!

[@ProcessedDigitally]

Interesting

[@12TribesUnite]

Very interesting !!

[@BeReal918]

Guys 2000 years ago : Hey baby, you wanna come over and chill? Girl: It's too hot. Guy: I know a spot!!

[@jussikankinen9409]

Indians did same 10 000 years ago

[@CoreyChambersLA]

Fascinating! I'll try one rosewater saffron Bastani please!

[@WakkasLove]

Genius! There's not a single college graduate today that would have come up with something like that.

[@Lppt87]

Persian people were amazing. What a treasure, never allow it to get lost please.