An idea I once had is a "slush cooler". Basically, it works like a water cooler, except it's hooked up to a slushy machine. The slushified-water fluid is pumped down to the CPU, where it naturally will melt, then the melted slushy fluid is pumped back up to the slushy machine where it is re-cooled.
Instead of changing the cup for a new one you should have added more ice Due to a property of materials called latent heat, when a material is changing its phase its temperature will remain constant It means that if you mantain a mixture of water and ice its temperature will always remain at 0°C I'm sure that if you swapped between cups of this solution you could have gotten way better results
I was about to suggest same. Also surface area of an ice cube that touches the cup is small, but with water and ice cube, heat will transfer much better between the cube and water and between water and the cup. Maybe even better, modify a heatpipe cooler to enter through a cup, seal it with a glue gun, it would have the heatpipes in the ice cold water and would getter heat transfer in my opinion.
While he would get a way better result, your statement is lacking as there is something called heat conductivity and convection speed. Water that is on contact with the heated surface needs time to move or conduct the heat to other parts of the liquid. So you should also add a stirring system to effectively cool your system.
@@nilsfrahm1323 Yeah he should have added cold water. The metal part initially only exchanges heat with small contact patch on the ice cube + itself. And largely the ice cube "touches" air which doesn't exchange as much heat with the metal cup.
Dude I had a Dell XPS studio with one of those in 2008 and the thing sounded like a friggin jet turbine every time I started GTA IV. And, yeah 90 C was common on that processor with the demanding games of the era. In the CPUs defence, I'd never even heard of liquid cooling back then. Coolers were typically smaller then, too. But, hey, multithreading and ddr3 blew my mind at the time. It was such a jump from my previous 32 bit Windows XP system.
The cooling got better as the ice melted because of poor thermal coupling of a loose ice cube, that is improved by the water that bridges the gap as it melts. Filling the pot with water and freezing it would improve that. You could also try to use paraffin (candles), as it has a higher melting point, so maybe it would cool less but last longer.
by that do you mean ,,uh.. convection? heat tranfer from one hot objedt to one cold object? ya yer right, the ice has to touch the medium, or its just heating water... and the cube is melting at a rate cooling stops transfering heat, and just boils off.... cooking is a good example... heats low but pan is hot, tons of ice,,, no dif, the pan is being heated faster then the water can cool it :-\.. oop oop what we call, a half ass thermal runaway. :-)
You may try this same thing with other kind of metals like aluminum, copper and even with heatsink (idk how to do). I think the problem here is with heat conductivity of metal used. Ice is below zero, it must have cooled.
If you have ever seen someone hold a 1/8th inch copper pipe in there hand and just hold it against an ice cube, it cuts the the cube like butter just with the heat transfer from your hand. Point is better heat transfer would be good but it would probably melt the ice cube in about 30 seconds lol
Ooooohhhh an alcahol evaporative cooling setup would be interesting to see. Get some rubbing alcohol in a spray bottle and spray it on the surface of the CPU! If you’ve got a 3D printer, you could make a collar to go around the CPU so that you don’t get any over spray and it could just mount to the same air cooler holes. (If you wanted me to design the collar for you I’d be happy to do so)
the compressed air was better than the air duster bc its an aerosol, so the gas decompressing (condensing) also cools down the cpu. You can test this by spraying some on your hand, it'll be cold.
I had ran a i5 3470 without a cooler for a week before realizing that it was missing its cooler. Decided to test it with integrated graphics on games like OG ghost recon and rainbow six 3 and it never went above 80 degrees celcius. A testament to "old" Intel.
salt changes the freezing point of water. the ice will be the same temperature as the air in the freezer whether or not there is salt in it. what's most likely is that the water would never freeze in the first place
There wasn't nearly enough pressure between the cup and CPU for the thermal paste to be effective. In fact it might have even had some insulating properties (edit: in comparison to metal-on-metal) due to less contact surface.
I did all these experiments back when i was 12years old more or less, i did Dryice and LN2 by 15yo on P4 Prescott and Pentium D's, amd Athlon etc...so yes, this is the content i found and still find interesting and captivating! Subscribed.
The measuring cups really should have been sanded to at least a grit of 3000. If that were done, the liquid water would probly be able to sustain a decent temperature without switching cups.
5:53 It's different for some boards. For example on an OptiPlex mobo it'll just alert you that the corresponding fans are not found, and you can press F1 to continue.
Try to put the Ice in the melted water. The ice block does not completely cover the surface of the cup. I'd like to see that rerun with only new ice in the melted water, I think this'll help even more:)
Can you flip the motherboard, and apply the ice from bottom? That way water will drip to ground, keeping the motherboard dry without using a cup in between
@@Rubennatorr nope, then it won’t work at all. There’s wood in between then, a bad conductor of heat. He meant CPU facing down and ice in contact with it.
I used to do something like this on my old crappy laptop. I would place a round lunchbox cooler under where the cpu was as the thermal paste on the cpu was all dried up.
I think the reason for temps dropping as the ice melts is due to the additional coverage provided by the water, instead of just bare metal touching it.
Try using acetone. It has a boiling point of 56 degrees celsius. By turning the top part of your cpu into a basin, you could literally boil off acetone at 56. That means that the excess heat would be turn into energy to boil off the acetone and prevent the cpu from reaching above 56 celsius.
Of you guys find a way of supplementing a normal air fan but with ice somehow, it should lower the active temperature during stress a little more than just the fan, in addition to reducing the speed at which the ice melts.
Hello! Ice is actually quite more effective. I use it o the bottom of my laptop all the time. My laptop can get quite toasty,and throttles down,but as soon as I rub 1-2 ice cubes all ove te metal bottom it goes back to its maximum potential. I think the biggest mistake you did was to just let the ice sit there. A more effective solution would be to put a small metal plate ontop of the cpu and then rub it as it melts much quicker that way. The biggest problem with ice is that it cant flow tho. Perhaps near freezing temperature water cooling would be the best of conventional and non conventional Collin worlds
@@crisnmaryfam7344 not really nobody uses that method, first you need to add more surface where the heat can be transferred like a piece of metal that connects to the CPU the it can become more effective
Well I wanted to say that I actaully tried on Phone this ice cooling its stayed below 40 while its 53 normallly and I tried on Battery I dunno but i cool it, It gave me 30% battery boost again i did it again gave 22% Boost I dont know But Maybe If battery stays cool it automatically charges ? I was actually charging it before a min and then switch mobile and then cooled it, thats how i did it
As a person who has accidentally spilled a drink on my laptop, I can confidently say that using an ice cube as a CPU cooler would be the coolest and chilliest way to overclock my computer
As in January 1985 the Commodore 128 was presented, the second video chip VDC wasn't stable, it quickly overheated. The developer bent from his popcorn popper a tray, and with an ice cube it worked for about 20 minutes without buring down.
This is so funny to me as a chemical engineer. Running the experiment instead of just calculating it based on the CPU's power usage and assuming various efficiencies to see what would happen ideally with the ice. I guess this way is more fun!
It's important to note that compressed air is not comparable to a fan because the air will be cooled as it decompresses. Fans don't cool the air they blow.
Many years ago when I was at school I upgraded my 484 to pentium... I spend all for ram, cpu, graphic. No case and fan just a power supply. For a few month I used to put ice in a glass on the cpu and some cloth around it to keep things dry. It worked.
ever tried wrapping the outside of the cooler and up the side of the fan with duct/electrical tape to force the air to pass through the entire block? believe it or not but radiators work better when cool air is passed over the fins rather than the fan just pulling air from the gaps where it meets the cooler
maximum contact is required between the cup and cpu. There's a reason you screw in an air cooling system tight. As for the air blower, you could've installed the aluminum fins and then blown it with the air blower in replacement of the fan.
This looks fascinating but as a layman I’m horrified by the idea of putting frozen WATER on my CPU horrifies me because WATER and electronics is not a good idea. That’s super cool though how the ice melts instantly. That’s so cool! It’s such efficient heat transfer.
imo you should try surrounding the socket with paper towels and use pure ice, might still destroy your mobo but itd be interesting to see what'd happen with frozen water instead of thermal paste
I began designing and building phase change cooling systems around 2001.Actually attended Uni for Hvac Ref Eng. Built a 3 stage cooler. Installed all 3 stages in a used, clothes dryer housing. All new compressors HX's oil separators, VF drives...etc. it can pull a 500 watt load to -184 deg F. Silicone, it just comes alive below -120F! Regardless, a functional experiment! successful yes, but well really expensive. I was able to achieve solid 100% stable, 70%- 150% overclocks on Xeons. So bit of pride. And forget about running 24/7 that would be $$$$$$$$
Literally me, back in high school I used ice cold coins and put it on my copper heat sink. If those coins gains temp I replace it with a new batch of ice cold coins
Haha ! Back in the mid 80's, I needed to place a plastic bag of ice & water on the two 40-pin chips inside my brother's Commodore-64 to prevent it from crashing & freezing. That trick worked just fine ! 🙂
Thermal paste alternative: Toothpaste!
He already did that
Yes
Spoiler alert
Already done
Aww man, already done? Damn.
This guy’s not a problem solver, he’s a maker
Problem maker?
jamaica
a maker solver?😭😭
I think an inventor would sound better
pfft, guys got nothing on us... LIQUID NITROGEN baby lol who said 7 giga hurts wasnt impossible? kish our caboosh :-)
Next video: can a real rat replace your mouse?
And answer - yes!
No 😮
No.
someone would find a way. Anyway, why is youtube recommending this to all of us again?
no , you need a real MOUSE not a real rat
An idea I once had is a "slush cooler". Basically, it works like a water cooler, except it's hooked up to a slushy machine. The slushified-water fluid is pumped down to the CPU, where it naturally will melt, then the melted slushy fluid is pumped back up to the slushy machine where it is re-cooled.
This sucks and I love it. Someone get on this right now.
Instead of changing the cup for a new one you should have added more ice
Due to a property of materials called latent heat, when a material is changing its phase its temperature will remain constant
It means that if you mantain a mixture of water and ice its temperature will always remain at 0°C
I'm sure that if you swapped between cups of this solution you could have gotten way better results
I was about to suggest same. Also surface area of an ice cube that touches the cup is small, but with water and ice cube, heat will transfer much better between the cube and water and between water and the cup.
Maybe even better, modify a heatpipe cooler to enter through a cup, seal it with a glue gun, it would have the heatpipes in the ice cold water and would getter heat transfer in my opinion.
Yeah except it would have flooded the motherboard...
While he would get a way better result, your statement is lacking as there is something called heat conductivity and convection speed.
Water that is on contact with the heated surface needs time to move or conduct the heat to other parts of the liquid.
So you should also add a stirring system to effectively cool your system.
@@nilsfrahm1323 Yeah he should have added cold water. The metal part initially only exchanges heat with small contact patch on the ice cube + itself.
And largely the ice cube "touches" air which doesn't exchange as much heat with the metal cup.
A
Its incredible how cool old CPUs were
and less powerful...
Say that to my old i7 920 what reached a good 90c while playing valorant
pentium 4 extreme edition entered the chat
Dude I had a Dell XPS studio with one of those in 2008 and the thing sounded like a friggin jet turbine every time I started GTA IV. And, yeah 90 C was common on that processor with the demanding games of the era. In the CPUs defence, I'd never even heard of liquid cooling back then. Coolers were typically smaller then, too. But, hey, multithreading and ddr3 blew my mind at the time. It was such a jump from my previous 32 bit Windows XP system.
Use a combination of all the coldest thermal paste alternatives to make the ultimate one
As well shampoo
it's a cool idea I wish the man himself sees it.
thats cool and all, but why do you have that as your profile picture?? (even though it's canonically accurate)
@@Harlow. everyone has weird pfp here including you dude
@@momu5600 eh true
The cooling got better as the ice melted because of poor thermal coupling of a loose ice cube, that is improved by the water that bridges the gap as it melts. Filling the pot with water and freezing it would improve that. You could also try to use paraffin (candles), as it has a higher melting point, so maybe it would cool less but last longer.
by that do you mean ,,uh.. convection? heat tranfer from one hot objedt to one cold object?
ya yer right, the ice has to touch the medium, or its just heating water... and the cube is melting at a rate cooling stops transfering heat, and just boils off.... cooking is a good example... heats low but pan is hot, tons of ice,,, no dif, the pan is being heated faster then the water can cool it :-\..
oop oop what we call, a half ass thermal runaway. :-)
You may try this same thing with other kind of metals like aluminum, copper and even with heatsink (idk how to do). I think the problem here is with heat conductivity of metal used. Ice is below zero, it must have cooled.
Yeah, use a thin and small copper cup, pour water in it till the brim and freeze it. Then apply fresh thermal paste and just use that frozen cup.
But cpu is much hotter
I usually use wet tissues on my laptop cpu
If you have ever seen someone hold a 1/8th inch copper pipe in there hand and just hold it against an ice cube, it cuts the the cube like butter just with the heat transfer from your hand. Point is better heat transfer would be good but it would probably melt the ice cube in about 30 seconds lol
And more mounting pressure on the CPU.
Thermal paste alternative ideas:
Yogurt, oatmeal, banana paste, ice cream, or Vaseline!
Ooooohhhh an alcahol evaporative cooling setup would be interesting to see. Get some rubbing alcohol in a spray bottle and spray it on the surface of the CPU! If you’ve got a 3D printer, you could make a collar to go around the CPU so that you don’t get any over spray and it could just mount to the same air cooler holes. (If you wanted me to design the collar for you I’d be happy to do so)
It's pretty much same thing as a heat pipe
@@timserious7678 it functions on the same principal as a heatpipe, but it’s about it’s only similarity to a heatpipe
Blowing that bowl of water with the compressed air next to the mobo really triggered my anxiety.
I'm really liking these longer videos you're doing
Same
Same
same
Same
Alternative ice! DRY ICE BROOO
the compressed air was better than the air duster bc its an aerosol, so the gas decompressing (condensing) also cools down the cpu. You can test this by spraying some on your hand, it'll be cold.
I had ran a i5 3470 without a cooler for a week before realizing that it was missing its cooler. Decided to test it with integrated graphics on games like OG ghost recon and rainbow six 3 and it never went above 80 degrees celcius. A testament to "old" Intel.
It was most likely thermal throttling itself.
Well you should've tried ice with salt cuz salt drops the temperature of ice to about -15°C. Go try this test it could be great!
doesnt ice smelt with ice?
@@IHATEUA-camSNEWUSERNAMESTUFF Yes it does , but I mean it would be a nice experiment do test.
@@IHATEUA-camSNEWUSERNAMESTUFF ice smelts with ice???
salt changes the freezing point of water. the ice will be the same temperature as the air in the freezer whether or not there is salt in it. what's most likely is that the water would never freeze in the first place
There wasn't nearly enough pressure between the cup and CPU for the thermal paste to be effective. In fact it might have even had some insulating properties (edit: in comparison to metal-on-metal) due to less contact surface.
I did all these experiments back when i was 12years old more or less, i did Dryice and LN2 by 15yo on P4 Prescott and Pentium D's, amd Athlon etc...so yes, this is the content i found and still find interesting and captivating!
Subscribed.
6:00 *Cooking a Ice Cubes!*
The measuring cups really should have been sanded to at least a grit of 3000. If that were done, the liquid water would probly be able to sustain a decent temperature without switching cups.
😂😂😂😂😂😂
now microwave a cpu for 5 seconds
*playing games with friends* "Hold on guys, need to replace the ice for my CPU cooler real quick."
i realy like your concepts there crazy like linuses but also nicely demonstrated and in a very cool format
5:53 It's different for some boards. For example on an OptiPlex mobo it'll just alert you that the corresponding fans are not found, and you can press F1 to continue.
Yeah, in Asus mobos there is option to ignore cpu fan
3:28 what kinda guy puts ice in their soup lol
me
me
It would be epic if you water cooled the CPU with engine coolant lol, love these vids man!
Anti-Freeze
3:05 for SOME reason, oh I don't know maybe because your motherboard is literally on a wood desk without a case, and one ram stick xD
when applying a new paste, make sure you clean the cpu well, otherwise it won't work as much as it should
That's amazing. It's as if it wouldn't melt and water wouldn't short-circuit everything.
Try to put the Ice in the melted water. The ice block does not completely cover the surface of the cup. I'd like to see that rerun with only new ice in the melted water, I think this'll help even more:)
This video gave me closure for my i5 3450 which runs around 75°-80° glad to know that it can be over 90° and still function
I have that exact cpu in my old desktop, even for as old as it is, its impressive how well it ran modern day games on average hardware.
video starts at 05:36
Thermal paste ideas:
-Make a PC PbJ sandwhich
-Make a PC Smore
-Peanut butter
-Another CPU
"another CPU"
thats what i said!
2:21 bsod jumpscare
people dont know what kind of content they are missing! It was so informative. want more like this :)
The fact that mryeester's video is also there. im honored.
Can you flip the motherboard, and apply the ice from bottom?
That way water will drip to ground, keeping the motherboard dry without using a cup in between
Then you’ll need something like a spring constantly pushing the ice upwards. Also the condensation formed on the motherboard can kill it too.
@@jivewig I think he means that if you put it on de otherside of the motherboard
@@Rubennatorr nope, then it won’t work at all. There’s wood in between then, a bad conductor of heat. He meant CPU facing down and ice in contact with it.
@@jivewig But he said bottom
@@Rubennatorr first flip the motherboard, then apply ice from bottom
Instructions unclear: Ice Cube ran out of breath trying to blow air onto my CPU. Had to call his doctor, Dre.
you could retry the ice cube experiment with distilled water ice cubes, those shouldn't be conductive
I used to do something like this on my old crappy laptop. I would place a round lunchbox cooler under where the cpu was as the thermal paste on the cpu was all dried up.
You should freeze mineral oil and see if it works as thermal paste
Laptop users: 90C° is not hot, its freezing. 🥶
Add salt to ice to melt it without increasing its temperature. That would distribute heat more efficient.
I don’t think that’s how it works…
I think the reason for temps dropping as the ice melts is due to the additional coverage provided by the water, instead of just bare metal touching it.
Try using acetone. It has a boiling point of 56 degrees celsius. By turning the top part of your cpu into a basin, you could literally boil off acetone at 56. That means that the excess heat would be turn into energy to boil off the acetone and prevent the cpu from reaching above 56 celsius.
Ah yes, chemical poisoning
Of you guys find a way of supplementing a normal air fan but with ice somehow, it should lower the active temperature during stress a little more than just the fan, in addition to reducing the speed at which the ice melts.
Hello! Ice is actually quite more effective. I use it o the bottom of my laptop all the time. My laptop can get quite toasty,and throttles down,but as soon as I rub 1-2 ice cubes all ove te metal bottom it goes back to its maximum potential. I think the biggest mistake you did was to just let the ice sit there. A more effective solution would be to put a small metal plate ontop of the cpu and then rub it as it melts much quicker that way. The biggest problem with ice is that it cant flow tho. Perhaps near freezing temperature water cooling would be the best of conventional and non conventional Collin worlds
You could make a take a pvc with a diameter less the the width of the cpu. Glue it on so it can touch the cpu
Dry ice next time ?
Imagine you are talking to your friends on discord and you say "brb I have to replace my ice" every 3 minutes or so.
I'd love to see a CPU cooler by an evaporator condenser (HVAC) system.
Like this?
ua-cam.com/video/oaTOHmuN2M0/v-deo.html
thermal paste alternative: hot wax
Maybe you could try dry ice for the cooling?
watch linus then they already made a video about it a month ago
Use normal cooling fan, turn it off and run it with compresed air.
Next : liquid nitrogen
💡 What if a continuously running compressor blows air onto the CPU instead of that can of compressed air? 🤔
What if..... A continually spinning fan were to move air across it?!? We may have come up with a new type of Cpu cooler!.........wait..... No... Nope.
@@crisnmaryfam7344 not really nobody uses that method, first you need to add more surface where the heat can be transferred like a piece of metal that connects to the CPU the it can become more effective
me: help my pc is hot! school nurse: *ICE!!!*
I guess this guy just really hates thermal paste...
Please use Copper Paste as a thermal paste, it is used to lubricate car brakes where extreme temperature differentials are normal usage.
im hungry cook egg
Or re-purpose a portable ice maker into a cpu cooler somehow? It's something I have wanted to try.
Well I wanted to say that I actaully tried on Phone this ice cooling its stayed below 40 while its 53 normallly and I tried on Battery I dunno but i cool it, It gave me 30% battery boost again i did it again gave 22% Boost I dont know But Maybe If battery stays cool it automatically charges ? I was actually charging it before a min and then switch mobile and then cooled it, thats how i did it
Battery's start to die at low enough temperatures
Please dont comment again
@@Lapraniteon ?
@@Lapraniteon ?
As a person who has accidentally spilled a drink on my laptop, I can confidently say that using an ice cube as a CPU cooler would be the coolest and chilliest way to overclock my computer
What if you remove a disk from a hard drive and install it into a pc ?
Bro a harddrive without a disk is like a cpu without cores 🤣
As in January 1985 the Commodore 128 was presented, the second video chip VDC wasn't stable, it quickly overheated. The developer bent from his popcorn popper a tray, and with an ice cube it worked for about 20 minutes without buring down.
And remember: This was an 48 pin DIP IC running with 5V and 16 MHz.
Future pcs will have integrated ice cube makers being stored in a copper heatsink to cool your pc!
This is so funny to me as a chemical engineer. Running the experiment instead of just calculating it based on the CPU's power usage and assuming various efficiencies to see what would happen ideally with the ice. I guess this way is more fun!
water cooling but off brand:
Someone teach this guy about mounting pressure.
I remember when I was kid opening my computer and seeing the thermal paste, and taking it off thinking it was dirt.
Wondering what happens if you just straight up put the entire computer casing inside a freezer.
Hmmmm...... Wondering if dry ice could do that.
Grate a cpu, and use that as thermal paste
It's important to note that compressed air is not comparable to a fan because the air will be cooled as it decompresses. Fans don't cool the air they blow.
Did you use stainless steel? The least thermally conductive metal?
I have intense anxiety every time I handle my CPU... and here you are throwing Nutella on this one and it's still going strong lol
There's no way noone is talking about how he said he puts ice in his soup
Thermal paste alternative: peripherals
ODDLYYY SATISSSSFYYINGGGGGGG
Many years ago when I was at school I upgraded my 484 to pentium... I spend all for ram, cpu, graphic. No case and fan just a power supply. For a few month I used to put ice in a glass on the cpu and some cloth around it to keep things dry. It worked.
I wanted you to spray the upside down compressed air on the CPU so badly. That would cool it down for sure lol
ever tried wrapping the outside of the cooler and up the side of the fan with duct/electrical tape to force the air to pass through the entire block? believe it or not but radiators work better when cool air is passed over the fins rather than the fan just pulling air from the gaps where it meets the cooler
I don't remember the name of some elevtrical component but it cools a metal pad to below zero when connected to electricity. You should try it
maximum contact is required between the cup and cpu. There's a reason you screw in an air cooling system tight. As for the air blower, you could've installed the aluminum fins and then blown it with the air blower in replacement of the fan.
This looks fascinating but as a layman I’m horrified by the idea of putting frozen WATER on my CPU horrifies me because WATER and electronics is not a good idea. That’s super cool though how the ice melts instantly. That’s so cool! It’s such efficient heat transfer.
imo you should try surrounding the socket with paper towels and use pure ice, might still destroy your mobo but itd be interesting to see what'd happen with frozen water instead of thermal paste
Hey! What's does ur CPU use for cooling?
Me: ----
Is that a Brand?
Me: no.
I began designing and building phase change cooling systems around 2001.Actually attended Uni for Hvac Ref Eng. Built a 3 stage cooler. Installed all 3 stages in a used, clothes dryer housing. All new compressors HX's oil separators, VF drives...etc. it can pull a 500 watt load to -184 deg F. Silicone, it just comes alive below -120F! Regardless, a functional experiment! successful yes, but well really expensive. I was able to achieve solid 100% stable, 70%- 150% overclocks on Xeons. So bit of pride.
And forget about running 24/7 that would be $$$$$$$$
Fun fact - The name for the shape of
Pringles is called a 'Hyperbolic Paraboloid'.
Interesting video but in the end you should've summed up the degrees you got with each cooling method.
Thermal paste on the bottom of the cup for the ice, and keep replacing the ice as the water boils off
I used this and it worked thanks for a tuturial!
Lmfao I haven’t watched this but as a concept this is fucking hilarious come back when I can watch this
Literally me, back in high school I used ice cold coins and put it on my copper heat sink. If those coins gains temp I replace it with a new batch of ice cold coins
You got yourself some hot-swappable ice? Dang that’s cool
Haha ! Back in the mid 80's, I needed to place a plastic bag of ice & water on the two 40-pin chips inside my brother's Commodore-64 to prevent it from crashing & freezing. That trick worked just fine ! 🙂
I thought he was gonna flip the compressed air upside down so it spews out the super cooled liquid
1:31 bro that keyboard.
It’s a ergonomic keyboard