I work at a chemical plant. We used to put quick lime in this one product which came in huge bags. And if you threw the bags away in the open top dumpster, when it would rain it would catch the bags on fire from the chemical reaction.
Fun fact: Calcium Oxide is used a lot in Japanese bento boxes (lunch boxes you have when you take a bullet train from one location to another.) You pull a string, which causes a water packet and the calcium oxide to react and heat the food.
I suppose this is a similar reaction as used in the "Hand Warmers" packets? In those packets, I believe that an iron chemical is used, but all the same, it is an exothermic reaction! 😀
Some extra knowledge - In India (I am a native Indian) people often chew paan ( Paan is a preparation combining betel leaf with betel nut) on various occasions. They use lime for a basic taste. So they bring lime from market which is clean and mix in with water and keep it in a glass jar aside for like 12-16 hours until it gets creamy. They jar gets so hot between this interval and bubbles form. Even I do this sometimes on some family occasions. Believe me the jar gets so so so hot. Lmao I get so scared sometimes that the jar will actually break but it doesn't :)
In the UK we've been putting water on quicklime for hundreds of years, it's used to make lime morter, the bricks in the house I live in are held together with lime morter.
Calcium Carbonate is a perfectly edible ingredient in heartburn remedies used to neutralise stomach acid. Quicklime is also used as a pickling agent. I used to slake lime to create hotlime mortars by the ton. I work with it every single day and consider it to be a wonder material, but must be used with caution. I've suffered 2nd degree burns from this stuff, but not through the process of slaking, but from exposure to the hydrate combined with friction in a wet environment. It's extremely caustic. Also, you cannot reuse it in the way it is suggested here, once CaO has reacted with water the Hydrated Lime Ca(OH)² must first react with CO² dissolved in water (or in combination with water and CO² present in the air) and cure into CaCO³ (Calcium Carbonate) before it can be burned and slaked once again. This reaction is extremely slow. It's known as the lime cycle. It isn't as simple as just re-heating the hydrate.SHFPs that use quicklime are single use only.
@@ShadowoftheDudeInteresting! I just looked on Google images at the ingredients list, and depending on the product, it may be 500mg, 750mg, or 1000mg calcium carbonate per Tums. I don't yet see the total mass of a Tums, so I don't know what percentage by mass it is. It would be a funny prank to get some Tums preheated, like put them in the oven under the broiler for a while so that they become quick lime, put them back in the bottle, then show a friend "look what happens when you put water on a Tums!" Then they would go to the store and buy some and try to recreate it only nothing happens 😜
Funny, I _just_ learned about the origin of the term "limelight" a couple weeks ago when watching an episode of "Penny Dreadful". They mentioned "limelights" as actual things instead of an expression, so I paused to look it up. Quicklime has had some interesting uses throughout history. Some of the more notable examples are the production of cement and the processing of corn and other grains in the Americas. That second one is my favorite. It's called "nixtamalization", from the Aztec word "nixtamalli". If you grind dried corn, it won't absorb much water. But if it's pre-treated with quicklime, you'll have something completely different. More nutritious. More aromatic. And more workable as a dough. Without nixtamalization, you can't have corn tortillas or tamales. Imagine that.
I've seen "lime" as an ingredient on a particular brand of tortilla chips, I can't remember which, and it wasn't the citrus "lime". I remember the texture being a little bit more different than normal tortilla chips, like more pasty but in a good way.
@@adamcolbertmusic I wonder if that means they're starting from corn and nixtamalizing it themselves, instead of purchasing prepared masa from a supllier. I think that would require them to include lime in the ingredients list. Whereas a chip maker that purchases masa _might_ _maybe_ get away with just putting "corn" on the list, since after nixtamalization all of the calcium hydroxide used in the processing of the corn is washed away, leaving just the very-changed corn behind.
Hes probably worried about impurites or other chemicals from products marketed as edible chalk. Or just regular chalk. Since its prob not regulated like Tums would be.
Schoolboy trick from more than five decades ago: wet the chalk, write something improper on the board, when it dries, it's nearly impossible to remove.
In kindergarten I put small pieces of chalk into the eraser and it took my teacher a while to realize it as she kept erasing while simultaneously making lines. She did not take it well. She was a B.
i put water on chalk that i took from school and i crushed the chalk and added water but nothing happened probably because it isnt the thing in the video
This is fascinating. I've always been intrigued by pre-electric light generation, but your limelight demonstration at 2:30 didn't seem to produce the desired effect. I'd be interested in seeing a more detailed experiment involving this.
@Venky Wank I think it looks bad too. Not to mention the Teeth. Have they been veneered? Affecting his speech. Love the channel, and think the guy is great. Just a little off putting.
My grandmother used to paint walls with a mix of quicklime and water. I remember her preparing it in a metal container ...The water would boil and lots of vapour would come out. Tens of liters of water boiling with some 4 or 5 big chunks of quicklime.
I do recommend eating a bit of chalk to ease the symptoms of acid reflux and other problems related to acidity in the stomach. It's marketed in grocery store as TUMS.
Chalk doesn't have an exothermic reaction with water, he's being very disingenuous with that line. He turns the chalk into quick lime before he adds water.
In Pakistan and in probably my neighbouring country India, *Chalk* is sometimes used as a *cheap* *alternative* to *paint.* We say _that_ _wall_ _is_ _whitewashed_ when painted with *chalk.*
It's funny that you mention "eating chalk". While a lot of the cases of people eating "normally not edible" inorganic substances (like chalk, drywall, and dirt), there are documented cases of people unknowingly doing this to make up for some nutritional deficiencies.
I work at a steel mill that uses literal tons of this stuff, when we clean the transfer houses we use water and this reaction happens in mass, perhaps I should record it next time.
In indonesia traditionally people consume areca nut or leave, betel leave, and active (will release heat when mixed with water) or inactive lime. We only chew them together, will get the effect of getting high and a little addictive. When the mix is not releasing any effect anymore we spit them.out. the spit is as red as red paint
I remember when they painted the house, they used lime. When they mixed water it used to get very hot and started boiling and steaming ... I could feel the heat from 2-3 metres away!
Actually, a few old theater houses that used limelights exploded in fireballs when the bladders they used to hold hydrogen and oxygen for the lime either leaked or caught fire.
There are some self-heating packed foods using CaO as the heat source. You just add tap water and leave it for a few minutes and it’s piping hot. So chalk is not hard to buy after all XD
Hey!-I recall seeing something like this a few years ago in a History Channel show about the construction of White House. The stones that were used to build the WH weren’t white; quicklime was used to “whitewash” the stones, and the demonstrated how it was done. For *sometime* after that, I was *musing* about the possibility of perhaps “MacGuyver”-ing this into-...I dunno-something “thermoionic”? A fuel cell thingee, perhaps? Anyway-I’d forgotten about all this until coming across this video now...
I have tried this. Are you a Pacific Islander? I put the "chalk" in the leaf and the nut and chewed it. Turns your mouth red and gives you a slight buzz. But not sure it was actually chalk...
The Active ingredient in TUMS is Calcium Carbonate. Although there are inactive ingredients. I dont think its bad to eat chalk per se. Its one of least dangerous things for people to consume.
Calcium carbonate is used in many thing - food supplement for pets (it is already mixed into commercial pet-food but for homemade food might be required to be added extra), as part of a backing-agent, acid-balancer and more. For other applications you do not require food-grade CC which is then of course quite a bit cheaper. You can bake it and then use as mortar (many european barns are whitewashed with that). And darn is it fun (cause of the danger) when mixing several kilogram of that with water :)
As a non native English speaker, I've always been curious about the origin of words or expressions. Today I actually learned something new about limelight. Thanks!
we have things called kapur sirih, which literally chalk & betel leaf. is actually well known around SE Asia you can find the wikipedia page titled Paan. its no longer recomended though concerning the health risk, but some eldery still did it.
Antacid tablets are calcium carbonate too. Basically flavored edible chalk. Also, couldn't this reaction be used to heat homes during the winter? I'm not sure how long it takes for all the water to evaporate but it seems like a pretty renewable source of heat.
We call it slaked lime in the UK and is used to make render for buildings from the medieval times to go present.Its nasty stuff and the dust from it can burn your eyes or even blind you
I crave chalk like crazy. I have all my life. As well as candies that are primarily calcium carbonate. So happy to find out I can order this chalk to eat.
In Russia we used this to paint the chicken house with this dissolved in copious amounts of water... ... so as kids we would get a small piece of it, stick it into a hairspray bottle with one end cut out, add a few drops of water, shake it up and light up a match near the hole- big boom! I’m guessing some flammable gas is a part of the reaction...
Did you know your comment is at the bottom due to the filter that make top comments first so if u want like youll need to be first or no one will even know yoh commented
Sound is big waves compared to light. It would have to have a lot of power in that beam. Kind of like arc welding. Low voltage but lots of amperage. But, if it takes so much energy for a sound wave, how much more power one must need for that perfect, I mean perfect, frequency. I dunno theoretically it is possible that's what harmonic frequencies are about too. I just don't see light having enough physical power to do anything. You can't arc weld with three hundred volts and no amperage.
@@earth117 sound, for us to hear it, has to vibrate between sixty and fourteen thousand times a second. Kilohertz means thousand cycles (vibrations). Light vibrates in the trillions. That is your gigahertz. Sound is a low frequency, bit with lots and lots of physical energy that actually makes the air molecules transfer the soundwave travel through the air. Light is on a different realm altogether.
Steel mills order lime in bulk as flux. To test for purity they throw samples it into water tubs, depending on how fast the lime dissolves and how much CaCO3 is left they can determine how pure their order of lime is.
isn't this used in wall paint ?? I saw something similar when our home was getting renovating, they used something like this, It got really hot when water was added,
I work at a chemical plant. We used to put quick lime in this one product which came in huge bags. And if you threw the bags away in the open top dumpster, when it would rain it would catch the bags on fire from the chemical reaction.
normal people when they see rain: ah there goes the rain
the people at the chemical plant: oh god call the fire brigade
Made in USA
@@spooopy4789 Today at Chicago Fire:
@wil fri
xDDD
And that's what I call good fun.
Fun fact: Calcium Oxide is used a lot in Japanese bento boxes (lunch boxes you have when you take a bullet train from one location to another.)
You pull a string, which causes a water packet and the calcium oxide to react and heat the food.
I suppose this is a similar reaction as used in the "Hand Warmers" packets? In those packets, I believe that an iron chemical is used, but all the same, it is an exothermic reaction! 😀
i think he accidentally edited out the footage that showed the lime light lol
@Michael John O’Neill. I think you are right bc I thought I’d missed something at first.
I got the same thought
He did.
OOF lol
yup
I didnt see any limelight, just little red glow.
same
same
same
same
Because it needs 2300 degree Celsius. For that effect.
Some extra knowledge -
In India (I am a native Indian) people often chew paan ( Paan is a preparation combining betel leaf with betel nut) on various occasions. They use lime for a basic taste. So they bring lime from market which is clean and mix in with water and keep it in a glass jar aside for like 12-16 hours until it gets creamy. They jar gets so hot between this interval and bubbles form. Even I do this sometimes on some family occasions. Believe me the jar gets so so so hot. Lmao I get so scared sometimes that the jar will actually break but it doesn't :)
I've had meetha paan before, I liked it a lot, pretty sweet, though it's a little unhealthy 😅
Relatable
In the UK we've been putting water on quicklime for hundreds of years, it's used to make lime morter, the bricks in the house I live in are held together with lime morter.
Calcium Carbonate is a perfectly edible ingredient in heartburn remedies used to neutralise stomach acid. Quicklime is also used as a pickling agent. I used to slake lime to create hotlime mortars by the ton. I work with it every single day and consider it to be a wonder material, but must be used with caution. I've suffered 2nd degree burns from this stuff, but not through the process of slaking, but from exposure to the hydrate combined with friction in a wet environment. It's extremely caustic. Also, you cannot reuse it in the way it is suggested here, once CaO has reacted with water the Hydrated Lime Ca(OH)² must first react with CO² dissolved in water (or in combination with water and
CO² present in the air) and cure into CaCO³ (Calcium Carbonate) before it can be burned and slaked once again. This reaction is extremely slow. It's known as the lime cycle. It isn't as simple as just re-heating the hydrate.SHFPs that use quicklime are single use only.
Yep. Active ingredient in Tums.
@@ShadowoftheDudeInteresting! I just looked on Google images at the ingredients list, and depending on the product, it may be 500mg, 750mg, or 1000mg calcium carbonate per Tums. I don't yet see the total mass of a Tums, so I don't know what percentage by mass it is.
It would be a funny prank to get some Tums preheated, like put them in the oven under the broiler for a while so that they become quick lime, put them back in the bottle, then show a friend "look what happens when you put water on a Tums!" Then they would go to the store and buy some and try to recreate it only nothing happens 😜
Sir are chemical engineer or chemist??? Please reply. I want to ask a question
No, there's no need to make the carbonate, as Ca(OH)₂ will also decompose into H₂O+CaO at 512°C.
Funny, I _just_ learned about the origin of the term "limelight" a couple weeks ago when watching an episode of "Penny Dreadful". They mentioned "limelights" as actual things instead of an expression, so I paused to look it up.
Quicklime has had some interesting uses throughout history. Some of the more notable examples are the production of cement and the processing of corn and other grains in the Americas. That second one is my favorite. It's called "nixtamalization", from the Aztec word "nixtamalli". If you grind dried corn, it won't absorb much water. But if it's pre-treated with quicklime, you'll have something completely different. More nutritious. More aromatic. And more workable as a dough. Without nixtamalization, you can't have corn tortillas or tamales. Imagine that.
I've seen "lime" as an ingredient on a particular brand of tortilla chips, I can't remember which, and it wasn't the citrus "lime". I remember the texture being a little bit more different than normal tortilla chips, like more pasty but in a good way.
@@adamcolbertmusic I wonder if that means they're starting from corn and nixtamalizing it themselves, instead of purchasing prepared masa from a supllier. I think that would require them to include lime in the ingredients list. Whereas a chip maker that purchases masa _might_ _maybe_ get away with just putting "corn" on the list, since after nixtamalization all of the calcium hydroxide used in the processing of the corn is washed away, leaving just the very-changed corn behind.
@@tom_something I will look at the ingredients on the tortilla chips the next time I'm at the store!
Remembering old school days with this experiment!!
Shouldn't this be "don't heat chalk and then put water on it?"
After seeking out actual chalk that is apparently hard to find.
Forget water, we shouldn’t heat it in the first place!
Firefighter: prepares water hose to extinguish the fire in the action lab
Me: You're making a big mistake...
That is the reason water is not used on chemical fires. Instead a dry extinguisher is used.
Another thing to add to my list of things to fight Aquaman, along with cesium
-MINUsHYPHEN1TwO3 and sodium right?
I thought it is common sense.
People eat chalk all the time, the active ingredient in Tums is calcium carbonate
Hes probably worried about impurites or other chemicals from products marketed as edible chalk. Or just regular chalk. Since its prob not regulated like Tums would be.
Ight imma eat chalk now I never thought of that!
Thank you for mentioning this. You can actually overdose from from calcium carbonate
Schoolboy trick from more than five decades ago: wet the chalk, write something improper on the board, when it dries, it's nearly impossible to remove.
In kindergarten I put small pieces of chalk into the eraser and it took my teacher a while to realize it as she kept erasing while simultaneously making lines. She did not take it well. She was a B.
Thanks for warning me, I was just going to put water on chalk!
Marijo Pilić wow! Me too!
metoo bro
@@Merczz no
i put water on chalk that i took from school and i crushed the chalk and added water but nothing happened probably because it isnt the thing in the video
@@Merczz no
"It's called the limelight."
*Rush has entered the chat*
yeah
90% of the people don't know what is the telling but 100% of us are interested in his expriment.
This is fascinating. I've always been intrigued by pre-electric light generation, but your limelight demonstration at 2:30 didn't seem to produce the desired effect. I'd be interested in seeing a more detailed experiment involving this.
i cant stop staring at the mustache it looks amazing u look like an undercover cop
He looks like Nikola Tesla....
And also like a FBI agent
@Venky Wank I think it looks bad too. Not to mention the Teeth. Have they been veneered? Affecting his speech. Love the channel, and think the guy is great. Just a little off putting.
And JoJo's character
I thought undercover cops don't have a specific look
Quick random fact, quicklime was also used in roman concrete.
I've heard you can also use egg shells or snail shells to make quicklime instead of chalk.
It is a component in portland cement as well...
@@Just_Sara That's because those shells are made of calcium carbonate (CaCO3), the thing that is in chalk.
CaCO3 + heat -> CaO + CO2
(quicklime)
@@gamistry2947 I know, right, isn't that rad?! :D
My grandmother used to paint walls with a mix of quicklime and water.
I remember her preparing it in a metal container ...The water would boil and lots of vapour would come out.
Tens of liters of water boiling with some 4 or 5 big chunks of quicklime.
Slaked lime
I do recommend eating a bit of chalk to ease the symptoms of acid reflux and other problems related to acidity in the stomach. It's marketed in grocery store as TUMS.
He says " extreme exothermic reaction of chalk with water"
Sodium : " Allow me to introduce myself "
Sodium says "hold my beer"...
@@Jonkemm that too is nice 😂
Sulfuric acid: "pour water on me and u die"
@@Jonkemm nope he says BOOM
Chalk doesn't have an exothermic reaction with water, he's being very disingenuous with that line. He turns the chalk into quick lime before he adds water.
In Pakistan and in probably my neighbouring country India, *Chalk* is sometimes used as a *cheap* *alternative* to *paint.*
We say _that_ _wall_ _is_ _whitewashed_ when painted with *chalk.*
Happy to show you this on a large and incredibly violent scale if you like... I work with it for a living. I enjoy your videos. Cheers.
Next : THROWING A CHUNK OF CHALK.. in the pool...
So, what do you think😁😁
I would like to see it
Just ask backyard scientist to do that.
Yes! I came to the comments section just to say this. Maybe Hydraulic Press Channel will do it.
EARTH WILL DIE
Probably nothing would happen if it was just normal chalk
Action lab: I don't recommend to eat chalk
60% People in China: Say what?
Covid-20 : yes
Me and my sister when we bite chalk for fun: are we a joke to you?
@@hello_oh_laaaaaaaeee who tf eats chalk , disgusting
@@furiousphoenix9784 Ever had a Rolaid or Tums? If so than you've eaten chalk with flavoring added.
It's funny that you mention "eating chalk". While a lot of the cases of people eating "normally not edible" inorganic substances (like chalk, drywall, and dirt), there are documented cases of people unknowingly doing this to make up for some nutritional deficiencies.
This was my school experiment in standard 7....😀😀
Indian?
@@yourboimoremore8364 obviously
Yourboi MoreMore yea no one else says standard lmao
@@malharmahajan6882 not just Indians say standard lol I live in Trinidad and we does say standard
I work at a steel mill that uses literal tons of this stuff, when we clean the transfer houses we use water and this reaction happens in mass, perhaps I should record it next time.
In indonesia traditionally people consume areca nut or leave, betel leave, and active (will release heat when mixed with water) or inactive lime. We only chew them together, will get the effect of getting high and a little addictive. When the mix is not releasing any effect anymore we spit them.out. the spit is as red as red paint
I wish he was my science teacher
His explanation method is really good
I remember when they painted the house, they used lime.
When they mixed water it used to get very hot and started boiling and steaming ...
I could feel the heat from 2-3 metres away!
Actually, a few old theater houses that used limelights exploded in fireballs when the bladders they used to hold hydrogen and oxygen for the lime either leaked or caught fire.
Title: Don't Put Water on Chalk!
The action Lab : **proceeds to do exactly that**
Hello
So... Literally every video
Calcium Oxide is not chalk... Just sayin’... The item he puts water on, calcium oxide, is not chalk.
"I'll put water on chalk so you don't have too
Random UA-cam video:
Comment: proceeds
This guy sound like he is asking a question every sentence he says.
People who like eating chalk are weird (except Susie, she's so badass) #Deltarune
I knew it someone was going to comment this!
But, you're right, like the little skeleton man, she's Sansational
Susie #deltarune
what about people eating soda?
@@cheesycheese60 thank u for the correction! :D
You can 100% do the same thing with shells either snail shells or seashells (I believe 🤔) it was used to make concrete.
*_welcome back to another “quarantine brought us here_* ”
wow i learned how self cooking meals work and where the word limelight came from. thanks!! great video 😃👍🏽
Hey Mr. James, can you make a video in which you explain day to day life things that we see but don't know exactly how it works.
The action Labs : Posts
Everyone: Rushes straight to the comments
100K Subscribers With 1 Videos Challenge copied.
hahaha it's funny because it's soo relatable stop im choking
Muzik Bike *chalking
There are some self-heating packed foods using CaO as the heat source. You just add tap water and leave it for a few minutes and it’s piping hot. So chalk is not hard to buy after all XD
Hey!-I recall seeing something like this a few years ago in a History Channel show about the construction of White House. The stones that were used to build the WH weren’t white; quicklime was used to “whitewash” the stones, and the demonstrated how it was done.
For *sometime* after that, I was *musing* about the possibility of perhaps “MacGuyver”-ing this into-...I dunno-something “thermoionic”? A fuel cell thingee, perhaps?
Anyway-I’d forgotten about all this until coming across this video now...
I'm buying this kind of chalk and drawing pictures all over my driveway! Can't wait until it rains! Another cool video!
lol
I love how this guy makes videos to educate viewers and not to gain subscribers.
aight imma go watch some gaming videos.
in brighton chalk is not hard to find, just dig down a couple of inches and solid chalk bedrock, we have whole clifs made of the stuff
Eating chalk (after adding water) is pretty common in our area...everybody consumes chalk here after dinner or lunch with betel nut and betel leaf
I have tried this. Are you a Pacific Islander? I put the "chalk" in the leaf and the nut and chewed it. Turns your mouth red and gives you a slight buzz. But not sure it was actually chalk...
@@moodberry it's actually a mild stimulant which helps in digestion..
This is a very good video that satisfies a STEM beginner’s curiosity about limelight.
We have chalk cliffs near where I live. And it rains (sometimes often :) )
The Active ingredient in TUMS is Calcium Carbonate. Although there are inactive ingredients. I dont think its bad to eat chalk per se. Its one of least dangerous things for people to consume.
Action lab is the best science channel
Now this is real backyard science
You can get good ideas for school science projects
Why you should out water on chalk,
Me: oh I thought you need clocks.
I’m sorry 😞
I loved the little fun fact at the end
Calcium carbonate is used in many thing - food supplement for pets (it is already mixed into commercial pet-food but for homemade food might be required to be added extra), as part of a backing-agent, acid-balancer and more.
For other applications you do not require food-grade CC which is then of course quite a bit cheaper.
You can bake it and then use as mortar (many european barns are whitewashed with that). And darn is it fun (cause of the danger) when mixing several kilogram of that with water :)
Bro I have that exact Belgorod chalk. Something about chalk is so satisfying to munch on.
Actually eatable chalk is used to reduce the acidity of certain products, like rhubarb for instance.
As a non native English speaker, I've always been curious about the origin of words or expressions. Today I actually learned something new about limelight. Thanks!
Hey, make an experiment on "Tungsten ". I think it would be great!
"Real Chalk is hard to find..."
Me: lives on South of England looks outside window... oh there's some 😆
we have things called kapur sirih, which literally chalk & betel leaf. is actually well known around SE Asia you can find the wikipedia page titled Paan.
its no longer recomended though concerning the health risk, but some eldery still did it.
Clipped at the lumen test, didn't work?
Antacid tablets are calcium carbonate too. Basically flavored edible chalk.
Also, couldn't this reaction be used to heat homes during the winter? I'm not sure how long it takes for all the water to evaporate but it seems like a pretty renewable source of heat.
We call it slaked lime in the UK and is used to make render for buildings from the medieval times to go present.Its nasty stuff and the dust from it can burn your eyes or even blind you
I forgot how much i love his vids 😨😨😨😨
We had this in school because they used to paint houses with this
0:29 “For some reason, the only *CHOCOLATE* ...”
Thanks man it improves my chemistry
Love your channel and I watch every video even tho I'm not into physics at all, but I have to say GET RID OF THAT STACHE MANNN
anyone else wondering how he washed that powder off his hands lol
Would Fast Orange work for that?
@@killingxgesture I think its actually speedy lemon.
Crayola Chalkboard Chalk is 100% Calcium Carbonate whereas (and they even tell you this on their website) the sidewalk chalk is not.
This would be a great survival tool for starting a fire in the rain.
Got to Dover chalk is everywhere
I learned so much from this!
In my driveway there are all these sort of weak rocks that crack easily and I think it might be chalk because they farley seem the same in material
Once they lined our football field with caustic lime. The dew on the grass activated it. Burns!
I've you live in the right places, you can just find chalk lying around, like in southeastern England it's everywhere.
Good thing it's not Ca(m)! Very cool!
Our water processing plant runs a continuous slaker at around 70 deg C to harden and clarify the water.
Cool experiment! Thanks for the video!
You are my favourite teacher... 😊
I crave chalk like crazy. I have all my life. As well as candies that are primarily calcium carbonate. So happy to find out I can order this chalk to eat.
In Russia we used this to paint the chicken house with this dissolved in copious amounts of water...
... so as kids we would get a small piece of it, stick it into a hairspray bottle with one end cut out, add a few drops of water, shake it up and light up a match near the hole- big boom!
I’m guessing some flammable gas is a part of the reaction...
Did you know your comment is at the bottom due to the filter that make top comments first so if u want like youll need to be first or no one will even know yoh commented
His intro :- hey everyone today I gonna showing you ......
you can also make chalk from baking soda and calcium chloride
Take the quicklime paste after its reacted with the water and mix it with charcoal, sand, or dried clay to make cement.
WTF, I haven't watched this dude in ages and I was shocked by that mustache
Good old Sir Goldsworthy Gurney, a Cornish legend!
So knowledgeable so manly. Thanks James
So interesting. Thanks for the video
Cool science and etymology!
A mustache like that could kill
If you can break glass with a frequency of sound, can you break it with a frequency of light?
Sound is big waves compared to light. It would have to have a lot of power in that beam. Kind of like arc welding. Low voltage but lots of amperage. But, if it takes so much energy for a sound wave, how much more power one must need for that perfect, I mean perfect, frequency. I dunno theoretically it is possible that's what harmonic frequencies are about too. I just don't see light having enough physical power to do anything. You can't arc weld with three hundred volts and no amperage.
Vincent Hildebrand ok that seems to make sense. I wasn’t sure but it was just an idea. Thanks for the explanation 👍
@@earth117 sound, for us to hear it, has to vibrate between sixty and fourteen thousand times a second. Kilohertz means thousand cycles (vibrations). Light vibrates in the trillions. That is your gigahertz. Sound is a low frequency, bit with lots and lots of physical energy that actually makes the air molecules transfer the soundwave travel through the air. Light is on a different realm altogether.
Steel mills order lime in bulk as flux. To test for purity they throw samples it into water tubs, depending on how fast the lime dissolves and how much CaCO3 is left they can determine how pure their order of lime is.
Excellent! *Request* ... Take II of the _forbidden color_ ?
Hmm what if someone ate..
Real Chalk..
😁😁
Cant get the sound "chark" out of my head now
For some reason here in morroco Real chalk that looks like that is treated as trash and just thrown
So that's where the word Limelight comes from!
isn't this used in wall paint ?? I saw something similar when our home was getting renovating, they used something like this, It got really hot when water was added,