CSAV Hawaii: Best Science Magic Trick with Water

[MGtechman98]

I did this in school on chemestry :D



[Dekyo1234]

Great for cleaning up spills LOL

[Fayte11]

This sucks! (pun intended)

[DrKillaser]

i knew this trick long time ago.. :P.., but hadn't any idea on how it does work.. :(..

and if you get a paper on a small plastic thing that can float.. will be better, the paper produces more fire... the water goes in in a MUCH faster rate..

[JonhyBlog]

works as well, with normal water, and a a match stick to plasticine

[CraterMuffin]

Its like the next shamwow.

[OsamaBinLooney]

hahaha i love this trick!

Science rules!

[Gorgorous96]

atmosphere pressure

[kamponghilir]

This is an ancient showcase developed 300 BC. This is used for people with ailments or diseases. A bottle with a large neck is heated over a burning coal. When it is heated for a human body to withstand the heat, the neck of the glass is pressed against the body part with either the ailment or disease. It is held on the body [art for a few minutes. The body will feel as though an extraction is taking part to remove the problem.

[FHomeBrew]

This is how I'm gonna clean fresh stains off my floors... only problem is getting the liquid out of the lass without spilling it again...

[BlondieBitesBronte]

OMG I HAVE THE SAME GLASSES AS YOU!

[VIZUAL1211]

Nice... :P

[thesteveoknows]

Sorry about the emphatic nature, I try to quelch bad science explanations on the internet all the time. The demo can be enhanced even further by fitting the candle as closely to the glass as possible, so that the maximum volume of water is drawn up, and allowing the maximum amount of headspace. That's how I do it for student audiences of 100-10000, so they can see, with dark or bright red food coloring against a white candle.

[thesteveoknows]

The explanation is totally wrong! The wax is a hydrocarbon. You burn the carbon part, you turn O2 into CO2, no molecular change. The hydrogen, you create H2O and push air out at first, then it collapses to an approximately 1000:1 ratio, and THAT is what creates the suction! GET YOUR PHYSICS AND CHEMISTRY RIGHT, PEOPLE! The condensing water vapor in the liquid and on the sides of the glass (I do this demo all the time) are what cause the suction. Physics professor, trust me.

[CenterStudyVolcanoes]

@thesteveoknows

You are correct. A geochemist pointed out the same thing a couple of months ago (but without the capital letters and exclamation points), and we have been planning to revise and upload a more accurate version of the video ever since. Be patient.

[Cureousful]

Eliminating the chemistry: electric stove, trap hot air inside a glass (3-4 seconds). Room T H2O and glass (thermometer). Same result.

Filling the cup with combustion products, it's ~1/5 water (cooled down gives 80% of initial volume). Heating the air in the glass to ~200C (products ~800C), give 50% volume after cooling. "1000 times" sounds impressive, but it disguises the lack of mole balance and PV=nRT. I'd be interested to see a more refined experiment that contradicts me.

[tdd10006]

thats so cool thanks

[HumaninSeoul]

You need a seal on the bottom and a bigger flame ^__^ might make a nasty mess lol

[Darktech008]

Do It In A Big Candle Not Small Ones

[cruzader550]

thanks man you help me in my science subject

[348katrina]

is it okey if you will not put food dying?

[CenterStudyVolcanoes]

@348katrina

Food dye is not essential, but adds to the beauty of the demonstration.

[nirika34]

that was awsome!!!!!!!!!!!!!

[serverconsole]

Awwsome ! thanks man, im going to take this into my fav. :]

[XxTeeJayexX]

cooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­ooool

[Abidail14]

oh wow that is surprising