Ship floating on nothing! :: Physikshow Uni Bonn

[903harman]

what would happen if they threw some rice in there. would the rice float?

[liquidrock2u]

if you wanted to do this with helium, couldn't you just make the box upside down and trap it that way?

[zeron8195]

@liquidrock2u Obviously you don't understand how gravity works...

[DarthNihilus1]

if u used helium, you would have to keep the cover on, and the foil would almost "Stick" to the bottom of the board from the helium pushing up on it

[TheFantasticCorndog]

it IS floating on something

[AndrosForever]

I would like to see him drink from that cup

[jakeproductions15]

wha????????

[xLulziex]

ARE YOU A WIZARD?

[spencertron88]

why don't they use this instead of maglev trains

[izachari]

@spencertron88 because a train's slightly heavier than a foil boat

[MrQuadraguy]

Cool ! It's alive hahahaha.

[lim0333]

its true that it works because the air beneath the aluminum foil is helium and is lighter than the air above it and that is why it floats not some stupid photoshop thing

[tappakeggaday1]

@lim0333 helium would have floated away , like you said it's lighter than air.there are gasses heavier than air that will do this. i think argon would be one of them

[wojteklew]

@tappakeggaday1 it's obviously SF6 :)

[mudskeeter101]

@lim0333 sulphur hexafluoride, not helium, helium would dissipate... helium is lighter, therefore would float above air.

[ryang123ful]

that fake

[SilkEclipse]

@ryang123ful No... your just dumb!

[Jeffersen08]

Could this stuff float a person, or only really lightweight things???

[rhysvanhouten746]

@Jeffersen08 only lightweight things. its only 6 times heavier than air, so anything thats between air and sulfur hexafluoride will float. look at it like a really really light water.

[boyd1876]

BUSTED

[amalikstar]

ohh wow

[halo4life090]

... is this really Sulfur Hexafluoride?

Because I came here after watching a few of those videos and this seems retarded.

[Valles923]

@halo4life090 Yes. The gas is really dense and will stay in the bottom of your lungs like this if you dont breathe it out.

[skihelmetcam]

They should make a pool filled with this and enough oxygen to breath so you can jump from really high up into it. or if the oxygen would just float to the top people could wear oxygen masks

[romainelettuce2]

@skihelmetcam that would just be alot of broken bones.

[tatykbp]

hahaha!!. OMG! is incredible.! congratulations i like it. :D

[PamelaKhooShynYee]

My gosh wow this is so cool!!!! :D Thanks for sharing!

[courtneyjy]

@PamelaKhooShynYee It was because of you im watching this vid now!

[PamelaKhooShynYee]

@courtneyjy hehe :D

[yadamC]

This is so bad for the environment like holy crap!



[rotem2kok]

FS6.. cool..

[LuigiWorld12]

what witch craft bull s##t is this

[queenvictoria1701]

Does it really work? 

[KittyaaRutheaa583]

hùhu_pâsst_hïer_ñêt_rèïn_abá_í­ch_bíñ_sò_ëìñsám_wïll_jèmáñd_m­ít_míà_schréìbéñ

[teddzertell123]

Whays going on right hear

[richarddale76]

Co2

[P3ligrosisimo]

It isn't magic, it is chemistry & Physical Science.

:-)

[xXTehAfroXx]

It's magnets. Plain and simple.

[miauw62]

@xXTehAfroXx Read the description, it says that it floats on gass. *cough*dumbass*cough*

[kakashinarutofan]

@xXTehAfroXx dont be stupid

[raretunes1]

Try a tank full of radon gas. Kidding.

[CAMNZ117]

did you know that if you filled a pool with custard you can run on on the custard :D

[guywithminigun]

and somewhere physics are weeping

[iunno12345678]

@guywithminigun this IS physics dumbass

[guywithminigun]

@iunno12345678 well excuuuuse me princess

[iunno12345678]

@guywithminigun scrub.

[pheonixfire989]

The only reason that happened is because the gas is denser than the compounds of different gasses in air, therefor the LIGHT tin foil floats on the partly ENCLOSED AREA CONTAINING THE GAS.

[Xanzis]

yh?

[zsurfer]

Very nice demo. So is sulphur hexafouride more dense than carbon dioxide? Well, air is 1.204 kg/m3 (I guess at STP...) and CO2 is 1.977 g/L and sulphur hexaflouride is 6.164 g/L, 5 times air! That's why it works...

[mrandytherockstar]

THIS IS MAGNETISM

[MGoose66]

@mrandytherockstar Errr, no, it's density, doh!

[Cabarrano]

This is density!

[romainelettuce2]

@mrandytherockstar no

[realvibes100]

How else there is to do it in the entertainment industry, L.A. Lewis is the

KING , THE GENERAL THE REAL STAR

FOREVER

the nations of earth is supporting you

REAL AS IT IS , NOTHING TO THE 7STAR GENERAL

[vincentpunay]

fuck this is not true ,no water

[Mistraker]

@vincentpunay No water. Sulphur hexafluoride. It's legit.

[trinchehm]

what is the gas name? you wanna to try this

[themagicman2010]

@trinchehm sulphur hexafluoride

[rjanis123]

Sulfur Hexafluoride

[TalkerStudio]

the gas doesn't fly out because of the pressure or something

[fishysk8]

@TalkerStudio the gas doesn't fly out because of density. the molecules of gas are heavier in mass it is like pouring a heavy liquid into a light liquid like when they make fancy coloured cocktails where one drink floats on top of the other. Or the mouthwash that has two colours in it that you shake to mix.

[themagicman2010]

@TalkerStudio No, it's because it's heavier than air

[patrickhadley]

wow! thats awesome, hope its not toxic to breath, being a sulfer compound does it stink?!

[mafiaslicka]

@patrickhadley it isn't toxic, but since it is heavier than air, breathing it, even in small amounts could lead to suffocation due to how hard it is to get out of your lungs

[fishysk8]

@mafiaslicka why don't you just hang upside down. This is rubbish people smoke everyday and the particles in smoke are vastly heavier than any gaseous substance. Obviously with smoke particles become trapped physically but with the gas it what just be expelled like normal. If i am wrong prove it and let me know because i think your point was interesting nevertheless and i had to think it out for a bit

[mafiaslicka]

@fishysk8 nice use of overstuffed language you pompous ass

1) it's not as if everyone can just "hang upside down" whenever they breathe in gas.

2)when you smoke cigarettes, you inhale, and then exhale. if you held your breath with smoke in your lungs till you passed out, the result would not be good. the problem with THIS gas is that your body does not reject it like the smoke, so most people do not immediately exhale it when they are playing with its voice-changing affects. i could go on...

[fishysk8]

@mafiaslicka Ok so i did my research and I was correct by so are you. Basically expelling the gas is not the problem. In a room full you would just collapse from oxygen deprivation and asphyxiate. My point is the gas can be physically exhaled its not dying while trying to do it thats tricky but neverthelss possible. Look up asphyxia on wikipedia.

[themagicman2010]

@patrickhadley If you breath it in, your voice gets deeper.  really!

[MGoose66]

@themagicman2010 True! In the opposite way that Helium raises the refractive index of the sound near your vocal chords. But I'd rather use something more inert...

[ueahg]

burn the witch!!!

[qpo3df]

And the GHGs emitted from this demonstration are roughly equivalent to burning a year's worth of gasoline

[FCBSERIS]

He's a witch - Burn him!

[Strikerklm96]

@FCBSERIS Everyones mentality before the 1700's

[MrMcDugan]

So fake. I could make something like this in 5 minutes with Adobe Premiere Pro

[GFraggle]

@MrMcDugan You could also do it in 5 minutes with a tank of sulfur hexafluoride gas, an aquarium, and some foil. But, yeah, Adobe Premiere works too.

[robillard130]

@MrMcDugan Fucking science, how does it work

[rxrx1776]

WHUT

[stepchangeable]

no really, god exists. honest.

[TheMindHeist]

@AnonymousElektron Shut up you damn fool.

[MarinaBabich]

"LOL "

[crashhold]

Sulfur Hexafluoride

[amadeok]

mbhe che so bravi

[joeyakabert]

bp need to find out how to do this it would be an e z clean

[egotripping88]

@joeyakabert explain

[sepdet13]

kragier -- I don't think you can swim in this gas. it's dense, but it's not as dense as water, is it? In order to float in this gas, *the gas would have to be as dense as your body*

When your body goes in water, you're displacing water equal to the volume of your body. Water is almost as dense as the human body, so the weight of the water you're pushing out of the way pushes right back!

This gas would have to push back with as much force. It looks to me like it's denser than air, not water.

[florinandrei]

@sepdet13 That is correct. SF6 is only 5 times more dense than air, while water is 780 times more dense than air.

[CowWithBeef]

@florinandrei And so using the ideal gas law we find that at only 156 time the pressure of our atmosphere, we could float in it.

[kragier]

@sepdet13 Well, I have never gotten my hands on it, but I've heard it is a density similar to water, probably less though. My idea was that the air in your body could possibly float in the gas, but I am not quite sure if you could actually swim in it, like you said, it may not push back with enough force.

I doubt it is denser than water, I possess no factual evidence to support either claim, but regardless, I am going to swimming in *water today!

Harhar

:D

[RyanatorML2000]

@sepdet13 So wouldn't gaseous tungsten hexafluoride theoretically make you float (if you had enough of it) considering its density is 3.44 grams per cubic centimeter? It would be really cool seeing someone float and swim around in what would appear to be just air (even though it's a corrosive gas).

[MoldyZombie]

@RyanatorML2000

it would look like zero gravity, would it not?

[OrderOfGamers]

@sepdet13 well another thing to think about is why its almost as dense, most of your body is water. i forget the % but its in the 80's or 90's

[gori33]

its sodium hexaflouride the most heaviest gas...it s science

[gtyyyfr5]

@gori33 most heaviest?

[MrSigno350]

idiot ¬¬. it is cience, jaja so good that increible!!

(?)

[KittyCatMew1]

this sure is a stupid question but what is gas and where is it coming from?

[hotelmario510]

Use the force! We need to find out how to market swimming pools from this stuff.

[WestIntro]

So, apparently this is done with sulfur hexafloride, which is six time more dense than air. Now that is cool!! It can also be used like helium, only to lower your voice. Question: Where can I get some of this stuff? =)

[NateSeale15]

if we got enough of that stuff below a human, could we make the human float like that also?

[WestIntro]

Actually, no, because there is no way to contain the gas and prevent it from leaking up and out of the top of whichever container you placed a person in. Also, we are far far too heavy for such an experiment. Nice idea though. =)

[HenvY]

@WestIntro

um, wouldn't its greater density keep it down? and what about a sealed container?

[kragier]

Now I am not going to try it, but you are probably wrong. Sulfur hexafluoride is 6 times denser than air. It has a density similar to water. Being denser than normal air we inhale, it will actually sink in the air, and so gravity will contain it. If you could fill a pool with this gas, you likely COULD lay on your back and float on it; that is if you had enough. Since it is said to have a similar density to air, you might be able to swim in it even! Water in a glass doesn't float out the top! :D

[thecharles11]

@kragier "Since it is said to have a similar density to air, you might be able to swim in it even!" I love swimming in those pools of air!

[kragier]

Excuse me, I meant similar density to water. To be honest, did you even watch the video? Your post is very contradictory to it. They contained it in the video...

[tomfoolery57]

more like drown

[MrGandrew]

Guys! Check out: levitating magic redbull display

Its only a display but magical!!!!!!!!!!!!!!!!!!!!!!!

[LordLink3]

El gas con el que llenan la pecera, se llama "Hexafluoruro de Azufre", cuya formula, haciendo gala de mis penosos conocimientos de nomenclatura inorganica (Suspendi el examen XD) es SF6.

No obstante, el Hexafluoruro de Azufre, es bastante caro.

Pero, en teoria, esto es posible siempre y cuando el gas sea mas denso que el aire, por lo que, En teoria, repito quiza sea posible hacerlo con CO2, que se obtiene facilmente del hielo seco.

[Kro406]

@LordLink3 ey y de donde puedo sacar un gas q sea mas denso q el aire??? o hielo seco?

es q creo q esto se puede hacer para la feria científica de mi colegio n,n...

[AKATECHSUPPORT]

i saw this on mythbusters haha

[OnlineMediathek]

Bonn, the German United Nations city, sparkles in my video at night..

[lseateal]

this is awesome!!

[idonknowmyname1]

is it that gas only denser than air

[ibfuckd]

hes a witch

[fanbid]

holy shit people invisable thread

[SrgtBarney]

its called sulphur hexaflouride, look it up

[HalfLiveForEver]

Sulphur Hexafloride is not as deadly as you think.. Ofcourse its deadly like any gass but your blood does not absorbe it quicly

[indigofuzzy]

Technically, Sulfur Hexafluoride is non-toxic. However, it does displace oxygen and poses a suffocation hazard in confined spaces.

[HalfLiveForEver]

So i said. but you explaned it better.

Thanks for that :)

[indigofuzzy]

You're welcome :)

[DannyAces]

What the students didn't find in their research was that Sulphur Hexofluoride was an extremely deadly toxin.

The graduating class that year consisted of 3 students and a chimp. Don't ask.

[LeetMoviez]

you must feel special not knowing of the hundreds of thousands of deadly gases on our earth, in-fact, air is deadly too, some people think it comes from trees, some does, but the fact that it comes from algae, cyanobacteria, and some plants in the process of photosynthesis, so next time you try insulting someone or acting smart, maybe pass grade 11. and i didnt know you and 3 students graduated that year...

[DannyAces]

Wow. Hostile much?

That was a joke you idiot. Who am I insulting?

Sulfur hexafluoride is not poisonous. In fact, if you inhaled it all that would happen is your voice would temporarily deeper.

Air is deadly? Really? Wouldn't it be challenging for the billions upon billions of animals to, ya know, flourish?

You may be the dumbest person on the internet. But if I had to find them, I always knew it would be a Canadian. L2Country

[LeetMoviez]

so breathing something heavier than air wont do anything to your brain/other organs?? you tell me what exact molecules are in air and then wikipedia each one, then order some of those things online, and try burning them, breathing them, or you know, pretend ur losing ur virginity, but we all know who already has here, and btw, compare Canada With United State of Assholes (talking about danny and his big mouth not you chuck norris) and tell me what would win, health care or govt? (Prob Canada)

[RazielKain]

I dont know if my english is not good enough or yours is just a bit to redneck-ish but .... anyways

your first question: IT DEPENDS WHAT TYPE OF GAS YOU USE

but I thing in general: gases heavier than air stay inside your lungs long time

unless you do a handstand you will suffocate

[DannyAces]

The gas will be cycled out of your lungs because of the pressure difference caused by your diaphragm. Think of it like rinsing the coffee out of a mug with water : )

[LeetMoviez]

haha, ill bet you an infinite amount of money you will not die if u breath gasses heavier than air. and second, canadians arent rednecks so ur english isnt good enough, and if u passed grade 8 science class you would know that your body needs Oxygen in the blood system to survive, no oxygen - dead, why do u think after ppl play with helium they breath in and out a bunch of times?

[RazielKain]

Our air contains about 21% oxygen absorb about 4% each breath via osmosis in your blood stream where it bonds to the Fe2+ in the haemoglobin as an complex circles around etc etc

Some humans can hold their breath for 10 minutes and longer because there is more oxygen in your blood than cells absorb the first cycle

So if the gas is not poisonous you would be able to survive it as long as you clear your longs afterwards by ... lets say do a handstand

[Simes158]

Sorry had to reply to this...

Oxygen enters the blood via diffusion not osmosis. Osmosis is the movement of water molecules.

[RazielKain]

Osmosis is the diffusion of water through a semi-permeable membran

so yeah you are right ^^

[LeetMoviez]

hehe, just because we dont shoot chimps into space and wonder why we suck at everything so we have to cry upon the stars doesent mean that you have to insult us canadians, you name 1 thing other than space that makes USA horrible and ill give you a cookie, stop making fun of us canadians because you cant find a simple reason other than your health care sucks and you cant find a job better than 8 bucks an hour in your horrible asscap of canada.

[DannyAces]

Well...our ability to focus on a point during an argument helps. Remember - I'm on the america's *not* horrible side of the border.

Don't canadians sneak down here for our superior quality of health care? Cause we see it for what it is- a service provided by skilled professionals, not a right for every fatass and smoker.

Also - your currency is the loonie. Who thought that was a good idea? Thats why nobody takes canada seriously. Why does your money have pictures of leaders if other countries?

[LeetMoviez]

uhmm, ask 9/10 american people over the age of 60, 1600$ a year on pills and such isnt very superior, and tests prove, americans have more obese people and more smokers than canadians, anyways, who were the people who showed us what alcohol and all that was? hmm, AMERICANS! and also, i dont know how u changed the subject changed to money, our money is worth more than urs btw pal, not uhh u wanna dallur! duhhhh hillbilleh much!

[DannyAces]

Did you forget the first sentence of my retort? Retard.

Also Learn2Alchohol: It's more than a few centuries old. Don't fret, buttercup. I don't respect you enough to hold anything you say as remotely valid : )

[hagu44]

the germans showed what alcohol was dumbass. and of course we have the highest rate of obesity, were the third most populated country on earth and a very developed one. and who care's if your dollar is so high. our same stuff is cheaper. also nice hypocrisy; it just shows how much of an idiot you are.

[Xend54]

my country is most obese: america

[ruskie20]

fckin american

[hagu44]

I'd rather be an american than a complete dumbass.

[ruskie20]

lol ur rather be obese

[hagu44]

And there's your complete dumbass showing. you're making accusations on other people based on a stereotype. buddy get a life

[ruskie20]

sterotype? lol look around you...

[LordLink3]

Me disculparas amigo, pero tengo muy poco conocimiento respecto al tema de donde conseguir ese tipo de materiales tan exoticos para algo tan simple... lo siento...

[jm442266]

@hagu44 highest rate of obesity means the percentage of obese people is high, not the amount. Fat bastard

[hagu44]

unfortunately not anymore. stupid healthcare bill

[tanhsienzhong]

true true!!! CANADA rocsk!!! and SA rocks a bit but so what? CAnada still rocks!!!!

[2gamers247]

thats cool

[dirtbikemanly2]

you guys are all idiots this is sulfur hexafloride or sumthing like that it is heavyer than air just think of it like helium exept this gas is heavier than air. so its like filling up a tank with water with the gas and it all goes to the botom and then you put a ship in it! see easy

[Fonzo123454321]

wow u sound like u are just trying to make this up. XD Plz try to sound smarter cuz it makes u look bad if u dont. Look up facts and also analyze wat ur typing. The internet is not the place where u say careless things because there are always critics

[dirtbikemanly2]

atleast i know what im talking about....... it may not have come out the best but if already done expiriments on this certain gas and ive done the same thing

[saigonpunkid]

can you swim in it?

[meaty459]

omg!!! if you find out leme know that would be awesome

[bitesh]

I think you're denser than any gas, so no.

[pdytko]

@saigonpunkid u will prolly suffocate but if

[CowWithBeef]

@saigonpunkid If you pressurize it to about 7 atmospheres, it turns to a liquid. In liquid SF6 you would not sink much deeper than your belly button.

[elfjurer]

lol  he is using sulpher hexafloried

[SenseiBerner]

what happens if you get in a room full of that gas..?

[DFaulted]

well, anything lighter than it floats...so an air balloon would rise

[SenseiBerner]

but what happens would u feel lighter or heavier..?

[Krelus]

You suffocate.

[mistopain]

ur voice go very low

[Tahmelapachme]

you suffocate

[minykilla]

FAIL, only if the room is 100% full of the gas but you can breath it in ok, its like helium but in reverse(becasue helium has a molecular mass of 2 and air is 26 you voice sounds a higher pitch, where as sulfur hexafluoride has a molecular mass of 146 ) it makes you voice sound much deeper (doing A level chemistry btw ;))

[ThreesiXtydegreeS]

you'll all sound like darth vader

[IkBenIvar]

Well, you first start to get dizzy, and then you die.

[dtemple1110]

fuck! really? so what if he thinks that anyways? maybe he doesn't want to be embarassed. i mean who knows, he could be telling the truth

[hop208]

That was cool. I'll have to try that.

[ariadnelol]

how?

[SavageInsight]

Lol, fun with high density gasses.

[blindside92]

my dumb ass friend thinks this is magniteism

[ImTheHaloGod]

no u do, u dont have to use ur friend as a cover

[DevilzDontCry]

how do you know that its really not his friend?

[ik0edui]

sulphur hexaflouride, is denser than air... therefore staying in the bottom of the container.

lamo