Added: 6 months ago
From: futsang
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  • you lift it up with your hand :)

  • As the candle burns out it takes out all of the oxygen making about 20% of the air in the cup get used by the flame (:

  • You created a vacuum.

  • WHAT KIND OF SORCERY IS THAT

  • OXYGEN IS THE ANSWER.

  • the flame takes is oxygen, and since all of the oxygen is cut off by the cup, It creates a vacuum effect and since it cant taking in oxygen it takes in water

  • the fire pushes away the water cause of the glass's air inside of it then when the fire dies out it because the fire has no air 2 burn it needs air then when the fire goes out the water comes back in the blass cause of the heat

  • @kmanmoney065 guess

  • i can explain this.this happens because in the glass after the combustion ends there is no oxygen in the glass as combustion uses up all the oxygen and the space of the oxygen is taken up by the water. simple.

  • well yeah because if you put a burning candle in the cup then the heat in there will take up more room and once it's gone the heat supply turns into condensation making more room and it allows more water but not all of it in.simple

  • @siansvids AND IM A YR 7

  • So cool fuck haters

  • @alexisboss123 why it's so simple!

  • I have the same plate.

  • the hot air has more mass than cool air. The water and glass makes the temprature low rapidly after the fire is off.

  • low oxigen rate makes a vacum but the pressure diffrence changes rappidly when the flame goes off because of the sudden temprature change in the glass chamber, making the water flow (that equallises the pressure to get more rapid

  • How about this... Charles's law... Volume is related to temperature... When the glass is put over the candle, the oxygen is used up, the flame goes out, the temperature drops. Temperature drops, volume (of gas) drops to maintain a constant pressure while the atmosphere pushes the water into the glass. Fun fact, there is no "pulling" or "sucking" in the "math world", especially when dealing with gases/liquids, outside force is greater than inside, outside pushes things inside!

  • nice

    

  • since the water was going into the cup , water was.... oh fuck this sience shit *walks out*

  • The low oxigen rate made a vacuum

  • constant density??? seriously?!

  • Music ?!?!

  • smoke drinks more water than fire.

  • science nerds + others = geeks?

  • The flame burned up all the oxygen in the glass creating a vacuum, which sucked up the water into the glass, extinguishing the flame.

  • A WAY more impressive demonstration of this principle is the old egg sucked into a bottle trick. Take the shell off a hard boiled egg and then drop one or two lit matches into a bottle and quickly put the egg on top. As the matches go out the egg is shot into the bottle. The egg will sometimes even be torn to pieces. That is a much better demo of the vacuum created.

  • the temprature in the glass is rising and also creating presure with the amount of presure it evolves into suction with that it fire the water in the glass not well explain

  • yes i can explain it

  • Its the suction that is left from all that gas that was left from the candles smoke. That when it went out it caused suction.

  • I had a go at a different candle trick check it out on my page youtube.com/watch?v=WhSU1JIc8z­o

  • The Oxygen is being consumed by the flames of the candle and the water uses that opportunity to fill in that lost oxygen by rising and letting the carbon dioxide pass under the glass in the water and out.

  • song?

  • yes

  • ?- how can we profit from this

  • Awesome!!!

  • Last time i did this i got an arrow to the nee

  • SCIENCE!

  • I did that with about 5 matches and all of the water in the plate was inside the cup XD

  • How long does it take for the water to rise?

  • fuck

    

  • The flame uses up the oxygen in the glass and creates a suction.

  • 8 people dislike because of the music

  • so simple

  • the song was stupid.

  • fire needs oxygen to live so it used the air which caused a vac ume because of less air

  • its easy! its just like a suction cup! place a match or Cantle in a Glass! and the heat Creates a Vacuum suck up the water

  • Interesting!

    

  • TRY THIS use the same thing as top excpet use a cork instead of the wax.put the candle IN the cork puor juice or water put cork and the candle with the cup around it tip the candle over with the cup inside.all the water or juce ANY LIQUID excpet Tick luquid shud be inside the cut.i cant recall wat i did but it shud work

  • Vacuum?

    

  • old trick!

  • the heat creates rising air which creates a vacum

  • Yes ur glass is cracked

  • As the flame dies out it eats away at the oxygen left in the glass creating carbon. As the oxygen is destroyed the water gets sucked up like a vacuum.

  • it just basically creates a vaccum, which then makes the water rise

  • pressure

  • ofcourse when the fire survived in it it destroyed the oxygen nd replaced it with carbon dioxide which caused the water to contract

  • Obviously the candle took an arrow to the knee, the glass realized that and felt sorry for the candle, therefore it decided to give him a drink...

  • Since the carbon monoxide escapes there's more space for the water

  • a little thing called vacuum

  • Its Chuck Testa.

  • I believe it is because of Charles's gas law. When pressure is constant, and the temperature goes up, the volume of air in the glass decreases, thus sucking up the water.

  • Burning is a chemical reaction taking Oxygen and creating Carbon Dioxide. Carbon dioxide has more mass than air (Density = Mass/Volume) and since the fire converts Oxygen into a more massive material, then the volume inside the glass must "decrease" (D = M/V, if M increases, V must decrease). This leaves a negative pressure inside the glass, and to compensate for that negative pressure water is essentially "sucked up" into the glass, in the attempt to gain more volume to be back at equilibrium.

  • @TheZatzke this isn't quite right. You don't talk about density of air, but pressure, and pressure doesn't care very much about the mass of the molecules, but more about how many there are, at least in the small scale like this. The vacuum effect is more due to 2 things: one is that when the fire goes out the temperature drops and thus the pressure. The other is that part of the burning reaction is water vapor, which condenses thus reducing the pressure even more.

  • @TheZatzke wtf are u like in 23987564375846th grade

  • @TheZatzke Oh. thanks for explaining. i never known that co2 has more mass than oxygen...

  • neic

  • yes at first there is oxygen in the glass and as we all know fire runs off of oxygen so as oxygen levels get low in the glass it causes pressure and to release pressure it sucks in oxygen until it eventually starts pulling in water instead. once the glass is air tight it stops pulling in water

  • 5-

    yes

    

  • :o

  • Amazing video, I really like it.

  • 0:51 isnt it already slow enough?

  • the heat of the flame imparts energy to the gas trapped under the glass, raising its pressure and pushing against the water. When the flame is extinguished the air cools. Less pressure is exerted against the water, allowing it to flow into the glass.

  • When fire burns oxygen is used, then it turns into CO2 or Carbon Dioxide. But since the weight and mass of water is more than that of carbon dioxide it rises due to the Boyle's Law, therefore water rises since carbon dioxide takes up less room than oxygen in the container.

  • Your cutting of the fires food oxygen solja the fires dies the water evaporates and puts it out then

  • The water level rises up due to the depletion of oxygen then water replaced it..

  • no such thing as magic, but neat

  • its the fire it is acting as a vacume

  • Cool! Thanks. I like ARC528's answer.

  • to neni zadny trik to je fizika

  • it is bad trick

    it is lol trick

  • i have that plate (:

  • Couldn't have said it better myself.

  • I did it :D

  • wow its magic....if you have not attended school ;)

  • Im 10...

  • Was it an air-pressure change?

  • yea just like global warming except smaller science

  • yes , the way is because when the candle was lit the air pressure was low so water can't come in so when the match burned out the pressure was low so water could come in

  • I acctually know why, It's cuz the heat is in the glass trying to escape, so it pushes the water away and down, as a way of escape, but once it goes out, the heat does too, then the water has freedom to raise to neccessary levels and relax.

  • I KNOW WHY!!!!! cuz it does.

  • LEARNT THIS IN 2ND GRADE

  • The candle has no oxagen to breath so it goes out pee brains do u ever get tort enything

  • @MrCoolclips123 Yeah, I know that. The maker knows that. Do you know why the liquid rises? Carbon dioxide has a smaller atomic mass than oxygen, creating a vaccum, and causing the water to fill the vaccum.

  • @MrPuddingTaco wrong, it's because of the relationship between temperature and pressure and volume. candle was making heat, heat expanded air, heat goes away, air shrinks, water equalizes the pressure with the surrounding pressure outside the glass.

  • @duerdo

    ... Hate to burst your bubble but that explanation is wrong. If the heat expanded any air in the glass. Say at the beginning the glass has a 0 bar pressure inside, and no water is being sucked up the glass.. After heating, the glass would have a net pressure of say +10 bar. This +10 bar then goes away (Temp Drops) and the glass is back at 0 bar, meaning the water would still not get sucked up the glass. This particular experiment has nothing to do with the heat of the candle.

  • @TheZatzke Nah, the air's already heated up before the glass is put on it. How else do you explain the rush of water after the flame's been out for a few seconds? If we accept your explanation as true, then the reaction of the paraffin wax vapors burning with the oxygen continues well after the flame goes out. But the reaction releases energy, producing a flame. If the reaction continues, why does the evidence of the reaction not continue?

  • @MrPuddingTaco

    CO2 has a higher atomic mass than O2...

  • VACCUM!!!!!

  • or in other words it creates a vaccum affect and when the mane power supply is gone the water will go out the vacuum

  • It creates a vacuum

  • It creates a vacuum

  • omg cool !

  • not magic... science

  • @m4r1o148 still cool tho

  • Theirs another trick bring a lighter and a tea bag open the tea bag and empty at all the interests inside it and make it stand up and light the teabag from up!

  • @missforevermimi How are you the only one who's getting this? It's pressure amd temperature, guys. Not chemistry, physics.

  • Nom nom nom

  • so funny i just did that in science class today

  • The flame is exhausting its oxygen supple giving the water more space to invade the cup

  • charles law : as temprature increases volume increse

  • I want to see this done in a larger scale

  • No i need help

  • it creates a vacuum so not that cool bud

  • its very simple. you have a puddle of water that wants it to be flat. your glass has a pocket of air in it as it gets close to the water you almost have the air traped. the candle starts to heat up the air in the cup expanding it.

    if you noticed as the cup made contact with the water it was blowing bubbles that was because the hot air was expanding and when the water covered the entire edge of the glass it made a seal when the candle burned out the the last bit of O2 it cooled and created a vac

  • The fire burned up all the oxygen in the glass

  • @jpm1316 yes, but it basically replaced it with carbon dioxide

  • @futsang while the candle is lit, you have complete combustion. during this time the cup is filling up with carbon dioxide (co2) and dihydrogen monoxide(h2o, water). the molecules of the candle are made up of chains of 20 carbon with 42 hydrogen attached to them(c20h42). whenever you have fire you need 3 things, fuel(the candle), oxygen (o2), and heat. the balance equation for this combustion is 2(C20H42) + 61 (o2) + heat ---> 40(CO2) + 42(H2O).

  • @futsang as the oxygen(o2) levels decrease you will have an incomplete combustion. during this time the cup starts to fill with carbon monoxide(co) until the oxygen(o2) is gone which results in the flame dying. the balance equation for an incomplete combustion is 2(C20H42) + 41(o2) + heat ---> 40(CO) + 42(H2O).

  • @futsang are you stupid that isnt how it works when you suffocate a flame like that it forms a vacuum it does not breath!!!

  • @np0388 moron, the fire heats the air up, causing the air to expand and exert a set amount of pressure against the water from the point the glass cup is placed over it. When the fire goes out from using up its oxygen supply, the temperature of the air in the glass goes down and the pressure of the air goes down. Much like a balloon that shrinks because of a colder temperature

  • @NightWolfJC this is not a case of heat it is a case of standard osmosis the flame depletes the oxygen and that creates an area of lower pressure within the glass this causes it to seek equilibrium the easiest way possible which would be to bring some water into the glass... notice how the water rises while the candle is still lit.... if it was about the temperature the candle would be out before the water even began to rise

  • @futsang Carbon dioxide has a much smaller atomic mass

  • @futsang burning oxygen into carbon dioxide does not change its capacity in that big way. real explanation is that carbon dioxide just cooled when fire went off. it gave heat to glass and changed its capacity.

  • @futsang bro... that's respiration...

  • but it came when the candle blew out

  • the heat forced the water into the cup

  • Hot air goes up leaving a vacuum that sucks water in?

  • :)

  • Yes,the light of the candle went out which made a vaccum which pulled the liquid into the glass

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