Why Does a Candle Make Water Rise?

Today we're testing out an old tea light experiment that makes a cup fill up while upside down. Not only that, we're going to super size the experiment by lighting a match with a laser.

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[@Bigfoot_With_Internet_Access]

Why does a candle make water rise? It just works

[@ryderlead]

thank you for your contribution Bigfoot, mad respect

[@arisara_xoxo8290]

Love ur name ngl 😂

[@paddyrobbo2430]

Just Some Bigfoot With Internet Access because the flame takes up all the oxygen 😂

[@Ian.Ressler2]

The candle uses oxygen which takes up matter so the water wants to equalize the pressure

[@akturbo774]

R/woooosh on some of the replies

[@Opshishio]

Freeze a steel axe head in liquid nitrogen,then try to chop wood Heat a steel axe head then try to chop wood

[@Bobbers31]

3:24 cali has absolutely no idea what nate is talking about

[@pogomouse5898]

I had no idea what Nate was talking about.

[@evie0613]

Jamie O'Brien I had no idea what he was on about either

[@gteaz]

Jamie O'Brien What are you talking about?

[@LordDragox412]

Neither does Nate.

[@greenjoe4202]

@@gteaz look at her face at 3:22

[@givrally7634]

3:13 Nate : "You also get atoms of water..." Me : Aight, imma head out...

[@cactiman6593]

Same thought here.

[@LordDragox412]

Water is my favorite atom. So is playing with lasers and only having one of two people wear laser goggles.

[@clonew07yt70]

I came down here to say that

[@RusticAlarm]

Our atmosphere is a lot of elements like nitrogen and hydrogen so it’s hard to say exactly a correct formula for the air in their location, but anyway the type of reaction is combustion which has a product of mostly CO2 and H2O. So here is a makeshift equation: Air + O2 -> CO2 + H2O

[@givrally7634]

@@RusticAlarm I think you forgot the fuel in your equation, you gotta get something burning. (Also, that's a r/woooosh right there)

[@Daani_die_boer]

When did Cali get glasses 😎 they look nice

[@dodoarmy8515]

They are laser glasses and she kinda wore them to not get blinded

[@tdub2399]

@@dodoarmy8515 10:11 your saying those are Lazer glasses

[@heysaucemikehere1804]

tdub2399 Lazer

[@heysaucemikehere1804]

DoDoArmy No, she usually wears contacts and has worn those glasses many times in other videos.

[@tdub2399]

@@heysaucemikehere1804 point the got still u!!! LAZZZZZZZZZZZZZZZZZZZZER

[@jupiterresident1537]

11:23 look at Cali watching it burn..so happy :)

[@brianaddington2335]

I can’t believe Cali just pulled apart steel wool. When my friend did that he cut his hand open

[@QualityCarp]

You have different thickness of steel wool, your friend probably had a much thicker kind of wool what has more structure and is sharper, also thicker wool won't burn, been there done that been disappointed.

[@benaycock1646]

Please more science explanations in videos like this! Really enjoy learning the Why

[@firstnamelastname9398]

5:30 you watched a *chemical* reaction that displaced air. The ignition of the match caused a chain reaction that cause gases to rapidly expand. That made the bubbles. The *physical* change was when the molocules in the air cooled down and created low pressure, where the water rushed in to fill the vaccuum

[@7duke77]

I love Calli's reactions to this stuff! Pure joy!

[@margarethenriquez3204]

Hey Nate and Calli, know how would a bathbomb react to liquid nitrogen

[@sweeflyboy]

It probably wouldn't

[@johnny129]

Yessir!!

[@nunyabizness6734]

Answer: vacuum. The air heated by the candle takes up more space, so hot air escapes from the container (fixed volume) prior to the container being set down. When the candle goes out, the remaining air in the container cools and contracts, creating an area of low pressure, which in turn pulls water into the container until an equilibrium is reached.

[@Noneblue39]

nice explanation

[@denisgavrilov3676]

Finally someone understands. Paraffin was being burned and took up more space? Tf?

[@peterobrien290]

2:48 I doubt that it's the paraffin in the candle as you can use matches on a bottle cap for the same result.

[@stevensun7126]

Peter O'Brien it’s the process of burning, not the substance that’s being burned

[@Chokblaar]

As long as its a hydrocarbon it'll do what they were talking about

[@alssir]

5:10. Cali :lights match Water: LEMMEE IIIIN LEMME IIIIIINN

[@PinguLovesU]

Elssir Ali lol

[@MsCherade9]

Love the science, more of this! The explanations of what is happening is really interesting and useful for viewers.

[@luci9261]

In my science class we learned about this. So what is happening is that as the candle is going out the water is filling up the same volume of air that was in the glass, so the water basically fills up the volume of air that was in the glass.

[@xdiamandis1535]

I haven't even watched the video yet and I can already say that I love it!! Would love to see videos like this more often!!

[@sethhhgarcia1763]

If calli had a blowtorch at all times This is how she would use it. Calli: cooks with blowtorch Calli: lights candle with blowtorch Calli: makes bath warm with blowtorch

[@wendyrippentrop368]

This is my favorite so far. Never knew you could do this.

[@Vinceras]

8:10 best part of the whole video lol...so dang adorable wanting explosions lol

[@emmalocityfamily6025]

Can you guys try something on how color changing cups and mugs like how they work and try to make your own? I got one for Christmas and would like to know how it works

[@Firefly-bq2hm]

Anyone else here love playing with candle wax?

[@DRKWxd]

Firefly totally bro, I like to mold my fingerprints with it

[@beezechurger1732]

*Me*

[@CODMGUY492]

@@DRKWxd yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Hhhhhhhhhhhhhhhhhhhhhhhh Hhhhhhhhhhhhhhhhhhh Hhhhhhhhhhhhhhhhhhhhhhh

[@jackward2231]

I like to let it cool a little dip my finger in it and take it out let it harden and bend my finger

[@jayhoangdang]

yee

[@joshuauriarte452]

When I was in school years ago this was one of our topics for physics. My teacher taught me that this is caused by a suction caused by the gases of the cold and hot air. It was fun to do this.

[@OtterKingGaming]

Probably one of my favorite science style videos y'all have done!

[@Cry_Ry]

Of course it a Zelda reference. I did the bleach experiment for my science experiment and I got a decent grade. Thanks for the idea!

[@sillymonkey73]

Dark ? ?

[@Cry_Ry]

@@sillymonkey73 They made a reference to a game. I also used on of their video ideas as a science project for my school with full credit pointing to them of course.

[@mokatwenty]

Guys! Make sure you ALWAYS wear your protective glasses when that laser is being used in the room. Cali did not have hers on at least once, and is your cameraman wearing his?

[@V10C3]

8:25 I cant tell if that pop noise was edited in or it was real it was so perfect

[@sengokunadekochan]

That is the very sound i think of when i think of pop sounds.

[@dmdragonlord8209]

20Ian Jury but do you know why?

[@donnalynn2]

This has got to be my fave ep ever and I have no idea why!

[@alyx422]

We all love The King Of Random because we all learn from their videos.

[@Alex-rw9nn]

ღFαntasiα Blíssღ their* if you’re talking about learning

[@briennanichols2090]

Yeet

[@alyx422]

Briza Schuler Im so sorry if my english is broken, and thank you👌.

[@Alex-rw9nn]

@@alyx422 it's okay ❤ I understand

[@SystemsPlanet]

What did you learn? What caused the effect?

[@ericjohnston4336]

you guys absolutely must do an episode with adam savage that would be so amazing

[@SchardtCinematic]

I did this in the 80's it was in a science book with experiments in it. This is cool to see you do it.

[@kawaiibri9204]

This explains more and makes it cool at the same time more than my school teaches us

[@wld_gaminglegend5620]

Teacher: watching KZbin for 3 hours doesn’t make u smarter Me: yes it does Teacher: how? Me : THE KING OF RANDOM

[@timothyneiswander3151]

I watch youtube for 6 hours. Am I twice as smart as you?

[@smdll22]

I watch youtube 12 hours am i 2x as smart as you?

[@fry1ngpan823]

Excellent

[@cementcake1392]

I watch youtube for 18 hours, am I 3x smarter than you?

[@serb9756]

I watch yt for 24 hours does that make me 8xs smarter than u

[@raymondramlal1863]

Try this with: Liquid nitrogen Gallium It might have some weird reactions or probably wont work

[@averagegamer9975]

You could basically replace liquid nitrogen or gallium with anything and that would be the same.... It might have a weird reaction or not

[@raymondramlal1863]

No Dw41n

[@amurderofdrunkcrows2587]

I think someone has done this I've seen it

[@c10v3r]

The gallium would just freeze. Because it’s metal.

[@noodlesgamebox5903]

@@c10v3r not with the nitrogen, lol

[@the8thark]

Great video. Love the way how you had an initial question you wanted the experiment/video to answer. Still no conclusion at the end of the video. But it's one of your better videos.

[@Calista_Star]

Loved the science experiments. Please do more videos like this.

[@matthewg1100]

Happy birthday for tomorrow Calli, I hope you have a great day (Also my birthday tomorrow)

[@ShadowCooper77]

Happy birthday

[@emmametcalfe422]

my birthday as well!

[@ShadowCooper77]

@@emmametcalfe422 wow what are the chances of that lol!!! Happy birthday

[@admirnaruto]

@@ShadowCooper77 Actually really high, there is this paradox called birthday paradox, simply put if you have 23 people in a room there is a 50% chance that two people will have a birthday on the same day, but if you have 75 people in that room, there is a 99.99% chance that two people will have a birthday on the same day. And at the time of writing this there are 357 comments here, so really close to 100% that two or more people will have a birthday on the same day.

[@ShadowCooper77]

@@admirnaruto hmmm... i dont know if i believe that. Can you show me where you found this? And why does this happen? Also, it's not going to be as high as you think, because there isn't a 100% chance that someone will comment that their birthday is tommorow, and there isn't a 100% chance that a person with the same birthday will even look at the comments, nevermind even finding this exact comment.

[@charleygabriel1485]

You know I love how she looks at you like when you talk science and talk smart she has this look of amazingly cuteness for example I study human actions and watching you talk she has this look like omg I love him but not just love him but like looking at him like he is your protector and the smartest man alive I love it. Keep up the great work man

[@channingtaylor1752]

Charley Gabriel are they dating..? I didn’t think they were

[@selinanachtmann2705]

Is anyone else fascinated more by that laser lighting the match than the water rising? I mean it caused a flame through glass without heating up the glass too much or causing anymore damage

[@celinaphuah2909]

In my opinion , this experiment is one of the best you guys made !

[@CortashGaming]

To everyone in the TKOR team,their families and everyone in these comments.I hope you all had a merry Christmas and have a happy new year!.

[@F0undationsofD3cay]

8:25 the popping sound it made lol

[@kofu4943]

I love how she referenced the Poe from LoZ

[@JoshuaD.Howard]

Love this simple yet intriguing and interesting experiment and question 😎😎🤩🤩

[@kevalpatel8301]

Make A vortex Cannon and fill it with flammable gas then try light it up

[@weewooo]

I have the answer to your question: Heat

[@devynjordan3097]

nitrogen would win it will because it is a cold gas that lasts so nitrogen will win

[@devynjordan3097]

fire might win

[@findingthee6049]

Magic

[@gteaz]

The answer is buoyancy.

[@plzletmebefrank]

It's more complicated than that. Heat causes the air to expand, which in turn increases pressure, enough pressure to push out through the water. Which that rush of air decreases overall mass. Which causes the water to rush in to equalize the pressure. (EDIT: This works because when the air inside the jar cools, it causes the pressure inside to drop. Drop lower than the pressure of the air outside the jar. The pressure of the air outside pushes on the water, thus, the water rises.)

[@RomanoPRODUCTION]

Replace the candle with an electrical resistance to heat the air in the glass recipient to pump up the pressure

[@ScratchOMatic]

I tried this idea out and it is amazing... it helped me impress the whole family

[@theodoretikhomirov6015]

I have a recommendation, try putting ice or dry ice into liquid nitrogen

[@daviera7848]

Theodore Tikhomirov I think they did that already?

[@thecat5209]

Daviera Dillard that did

[@theodoretikhomirov6015]

Sry I didn’t really see that....

[@samdavies9885]

Hi

[@theodoretikhomirov6015]

Hi

[@fettuccinealfred]

Lol 3:20 my guy said “water atoms”

[@callsign_omaha]

Love the video and happy new year

[@phoenix_games7891]

One of the only channels where learning is fun

[@erictaylor5462]

5:20 wow, that really sucks. Gets a like from me!

[@Cosmic_777]

Umm really sucks?

[@erictaylor5462]

@Mechanitron 123 Well look at the slow motion part, look how much it sucks!

[@wakiezakiederidder6813]

Did you really have to use matches that long to light those candles?

[@jobear6596]

You should have used multiple matches or scaled up the experiment by getting bigger glasses and make your own lager quarks and tuns of matches 👌love ya guys

[@alexisrestemayer115]

I am getting your winter sweatshirt for a Christmas present and I can’t wait to get it

[@SteelCurrent]

Independent variable: The water Dependent variable: How high it rises Controlled variable: The candles

[@duckbrother2duckbrother246]

You cant have two independent variables or controlled variables and still get usable data, or the dependent variables. At least not without an already clearly established way in which these variables relate. Not to be rude, but you should research that.

[@lillym5631]

Can we appreciate for just a moment they just have a random laser that they took out from nowhere

[@ozztelorman7057]

You guys are demonstrating basically a hydraulic piston - just like the ones in an internal combustion engine where the work is similarly done via the isothermal compression phase of the Carnot Cycle (piston rising up).

[@rtechlab6254]

We have made fairly effective cannon with matches, not surprised at all the pressure you got with them. Maybe you should do match cannons. Our record was lead shot through a 1" plank

[@maryc7830]

Happy New Year’s!

[@deion3283]

Its the 27th

[@uniquename6859]

@@deion3283 lol

[@fartogether7317]

That is such a specific Zelda reference with the poe o_O

[@Timothy-NH]

I am so glad that you filled the glass with oxygen, I was sitting thinking it would make a huge difference! As I understand it, the magnesium in a sparkler has an oxidizer in it, what would happen if you did this experiment with a sparkler?

[@elina7347]

Cali's new favorite word is glorious

[@ArtbyAmberLynne]

Calli, you should wear your glasses more often. You're gorgeous with 'em~

[@Laughing_Dragon]

I mean, they generally do unless your the type of person that thinks people loom like nerds negatively in them XD

[@Noneblue39]

girls in glasses are hot lol i find

[@CortashGaming]

Idea!.Can you all make a hand held smoke machine that sprays smoke wherever you want?.

[@CortashGaming]

@@taquasultani4333 ha :D

[@CortashGaming]

@@taquasultani4333 hi!.Quite excited are we?.

[@CortashGaming]

@@taquasultani4333 HA!.Nope just a guy that likes Final Fantasy and TKOR.😃

[@CortashGaming]

@@taquasultani4333 but i hope you had an awesome Christmas and have an awesome new year!.

[@abbypayne4496]

That pop that the oxygen high smaller container made was the BEST!

[@Daileyenator]

Could you use this as a sort of siphon, to get water from one place to another? Very cool. Love your videos!

[@benjaminhackett8896]

“Atoms” of water???

[@aaroncochran4055]

No simply vacuum trick

[@awarepillow1180]

What is the purpose of this comment?

[@leesy5016]

Awarepillow it’s asking I think because water isn’t atoms its molecules

[@benjaminhackett8896]

@@leesy5016 Heyyy, someone knows their science. :)

[@peterknutsen3070]

3 minutes in: Atoms of water? Water is not an element!

[@heysaucemikehere1804]

Water still has atoms, everything has atoms, yet not everything is an element.

[@jaralara6429]

Taoists disagree

[@thassalantekreskel5742]

"Atom" may be currently used to mean a single nucleus and it's attendant electrons, but it's older usage was a single unit of indivisible size. So one water molecule is "atomic" in that sense.

[@YTsucks300]

Immediately tried. Successfully pulled off. Very happy.

[@angunperme4701]

This experiment is very cool.👍🏻

[@theuncalledfor]

"Atoms of water"? Water doesn't have its own atoms, it has molecules, which consist of other atoms. Hydrogen and oxygen.

[@mathiash3541]

- Me: imposible😶 - My finger: closes the video - Me after: are they reptilians?

[@SamuraiPipotchi]

I'd like to see a variation on this with alterations on soace efficiency. So instead of 1 candle vs 3 candles, try 1 candle with 3 wicks inserted in it. Instead of the whole match, try it with just the match head embedded in the cork. Or maybe even just the chemical compound with no wood.

[@Last_Avenger96]

Tkor: which video you want to watch next? Me:all the videos you have prepared for coz they are interesting

[@marinzovko3258]

Why do I feel tension between the two of them? Anyone else..?

[@plzletmebefrank]

I wonder what would happen if you just stuck the glass on a table top or something it could get some suction against. Is it possible that you could use similar methods to stick a container to a flat surface, possibly a wall?

[@TheSlimCognito]

My guess is that it has to do with thermal expansion. Gasses in a sealed container heat up much faster pushing out air through gaps and causing a vacuum that sucks the water in. I bet if you tried to use multiple matches or storm proof ones you would get a better reaction.

[@darkmattergaming1453]

please do the match in the cork again but then with a flamable liquid. i think this will be cool to watch

[@yusufdakoolkid]

3:13 Water is definitely an atom

[@niki123489]

Well, you can measure the amount of water before and after the experiment and the difference will show you if there is more water produce by a chemical reaction or it is just the shrinking cooling gas creating a lower pressure inside the glass cup.

[@lindseymccraw3572]

Calli: Are we all confused right now? Me: *I am beyond confused mother.*

[@bulletz4breakfast259]

Cali looks amazing in glasses😍😍😍

[@gargava9533]

Happy new year !!!

[@FindAWayGymnastics]

It reminds me of how cupping works on the body. Just almost like the skin is replaced with water in this experiment.

[@annnicolelagmay2636]

Calli has a pet! It’s a jar of smoke! Seriously!

[@scottybarnett3957]

That is so cool thanks guys

[@NickFrom1228]

Vinegar (Acetic Acid) and steel wool is the formula for making iron acetate, which is used to stain wood. Works well in fact.

[@davidwilliams3504]

Now that was cool guys!

[@Sumpinking1]

The wax doesn’t have anything to do with it, you just re-created the “pull an egg into a bottle with a match” trick.

[@kricketflyd111]

I learned that the cork has some kind of neutral porous relationship with air and water that air temp and pressure balance is obtained in a determined volume. Something like that I think.

[@vinishshetty8055]

Hot air expands and cooler air contracts, when the candle extinguishes the pressure drops sucking water, same as an empty barrel imploding when cooled or a can of pickle is sealed with hot water due to possitive pressure when it cools.

[@draysonmorgan308]

You guys should have done some of that fast burning fuse the same fuse you used to light the birthday candles the fastest

[@usmcson3]

Coolest thing yall have done in a long while

[@za.1624]

Love y'all

[@eyemastervideo]

Like many, I was thought that it was the oxygen being burned, but it makes no sense since the matter still is in the container. Like the video explains, it's the heat / expansion. Think of it like an explosion, it expands, then cools and so must contract again. The fuse showed it best.

[@AHToHK]

It would be nice to see this experiment through thermo-imaging, so the physics of this process is better visualized.

[@Mikesisk17]

6:48 go BIG BOOM

[@James-le3df]

Could you guys try seeing what a storm proof match would do versus the regular match