Schlieren photography of moving air

[Smithy082]

why the hell are the previews at the end o.O

[EnderBro12]

Could they use this to see ghosts maybe?

[IrrexP]

"Seeing is believing" 3:43

No,

Seeing is deceiving, dreaming is believing.

[2manslkh]

Wall hack equivalent for sailing.

[MariofanE1337]

what if they filmed a plane going at super sonic speed? what would that look like? would anything change at all?

[cplai]

@MariofanE1337 You cannot do that with this filming technique. This photography process requires you to put your target object in between a special mirror and your camera. In other words, you'll first need to install a huge mirror in the sky and wait for the plane to pass in front of it. Perhaps there is a different technique for what you want to do.

[XxBrazilianKingxX]

@cplai Couldn't you use something smaller like a whip breaking the sound barrier?

[cplai]

@XxBrazilianKingxX Check the Video Response of this video, the linked video is exactly what you are proposing, using a whip to show the shockwave of a zonic boom.

[lbochtler]

@cplai normal cameras can actualy captur the soic boom, you just need a fast shutter and high iso, to do that, but normal digital cameras cant do that, however highspeed cameras can.

[8938butterfly]

I fucking love science

[TechnicCreations]

Hot air doesn't rise, cold air sinks

[ctomlinson109]

@TechnicCreations actually i think hot air moves to replace cold air.

[Evoshun]

@TechnicCreations no actually thats backwards

[Spanetik]

Can we record my farts... plox?

[ikik32]

@Spanetik no but we can record your mom!

[iamacupcakee]

so is this kind of like when it's really hot outside, and if you look at something closely, you can see the heatwaves above it?

[nicko198718]

where does hot air go in sapce??????

[cplai]

@nicko198718 With no gravity, hot air simply expands outward, i.e. no convection would take place. You can search Youtube for the NASA experiment on flame in micro-gravity on board of the space shuttle. e.g. watch?v=Q58-la_yAB4

[camswickyswick]

do not, i repeat, DO NOT WATCH THIS WHILE HIGH. you will be so tripped you will literally shit your pants. trust me. also, dick tits.

[ilovekitkats]

Last time I fart on camera

[bigbenhoward]

VOLUME!!!

[ulcard1]

1:10 *HEHMMM*Penn State University*Hmm*

[notfree25]

That dude was blowing his hair in a sea of fire.. LIKE A BOSS

[ninjagoalie3]

DICK TITS...............JUST DICK TITS

[RobyllPhotos]

its spelled schlieren but in english you should pronunce it like "shleeren"

[lilEmre99]

Vsauce inbound !!

[spiritsummoner3131]

VIEWERS PREPARE YOUR ANUSES! THE VSAUCE VIKINGS ARE HERE!

[quosmo1]

farts

[MagicMourni]

They are talking about the "Schlieren Technik" but they pronounce Schlieren SOOOO BAAD!!...

Im a native german speaker and it took me a loong time to understand to which german word they are referring too... D:!

[cplai]

@MagicMourni I can tell from the responses here that the pronunciation was way off. Perhaps you can help me clarify that mistake by spelling the word correctly in the video title. Give me the accurate spelling and I will edit the title and description section.

[MagicMourni]

@cplai

no,no! You wrote it correct. i was just reffering to the speakers in the video ^^

The Title and the Descriptopn ware fine :)

[TuringTroll]

@cplai Its Shlee-renn, emphasis on the ee.

[EllieInCaracas]

@MagicMourni Besserwisser

[MagicMourni]

@EllieInCaracas

Nya!

[EllieInCaracas]

@MagicMourni Scherz

[babblan981]

You know what else we can't see? Octopuses.

[RtoojBntOmha]

im thinking more of farts

[Pandamonia101]

Fail hot air doesn't rise

Hot things move to the nearest cold thing which in airs case is usually up

[cplai]

@Pandamonia101 You are right about the thermodynamic heat flow. You forgot to consider the expansion due to heat which in turn reduces the density of that pocket of air. Then buoyancy kicks in which causes the less dense (hot) air to rise relative to surrounding denser air. That is how hot air balloon works. Sea breeze in day time and mountain breeze at night go by the same convection mechanism too. Buoyancy, density and gravity are the key of the convection phenomenon. No convection in space.

[TheBlazzer12]

@cplai So you're saying in short, hot air doesn't rise, cold air settles, which leaves the hot air nowhere to go but up.

[cplai]

@TheBlazzer12 I didn't say it exactly like that, but I won't disagree with your interpretation. If you think of it there is no force pulling the hot air balloon up. There is only gravity from earth pulling down pockets of air in different density. Archimedes' principle suggests that the difference in the weight of the fluid displaced determine the buoyancy, which is just a difference in the downward forces (same acceleration g acted on different masses means difference forces). It is displaced.

[mirtosim]

imagine if i fart!

[theIrishfries]

what would happen if i farted

[looselard]

lol 4:24 biggest bong rip ever.

[cowboybebop82]

now we can know who passed the gas!

[XtremeBratmaxe]

its pronounced "shleeren"

[Ilir7777]

& i was thinking the fishes were isolated in water...We are like them but we just can't see air, which kinda plays the role of the water in the universe of fishes :)

[enterkakashi]

I wonder if you can see the air during sex.

[Naughtful]

blow drying with a flame thrower, hardcore lmao.

[fancy24frenzy]

the right pronounciation would be "shleeren"

smarty-pants mode off :)

[lasalle1alpha]

I wish they video captured someone sneezing...

[MegaBanane9]

@lasalle1alpha it does

[lasalle1alpha]

@MegaBanane9 that was a cough...

[NetherNerd]

ALRIGHT, who ruined the 1337 likes? Hmm!?

[macaroni262]

Notice how much the guy changed the density. NO wounder predator has no problem tracking us!

[steamuser123]

i call hax

[EMJohnson97]

Wait, he states that it is the same with stars. How so? There is no air in space.

[pussytaxi]

@EMJohnson97 the whole point of this is light hitting the particles, light can travel through space and hits the particles within the stars.

[cplai]

@EMJohnson97 I thought he meant when starlight pass through Earth's atmosphere, the moving air causes the star to appear twinkling. The void of space does not matter when the the layer of air above you is enough to affect your vision.

[NarlepoaxIII]

@cplai

Exactly, that's why the Hubble Space Telescope can capture photos of space that look unreal; as well as the technology that is used to change what light is detected.

[CrissCrossClock]

@EMJohnson97

Oh, haha. The atmosphere of Earth is distorting it. If you went into space, you'd look at the stares and go "WTF The stares don't twinkle, I need to tweet this!" :P

[CODxApokalyps]

@EMJohnson97 you watch through a atmosfeer

[WasiqqIsNinja]

1,337 likes, 7 dislikes

lol, 1337 likes :D

[cplai]

@WasiqqIsNinja thumbs up from the LEETs! yea!

[GreatBritishGamers]

But can it see the gorilla?

[obeyjef]

this would be perfect for ghost hunting

[Gear244]

...Trippy

[cramst3r]

slieren isn't a german ord it is a dutch word 2

[MassiveSub]

@cramst3r it's schlieren in german and slieren in dutch.

[cramst3r]

@MassiveSub ah yeaa your right but the pronouncation is the same

[zzzofzzz]

mmm... nice green screen you got there...

[quinto551]

dear santa..

[32deej]

i used to watch this show

[32deej]

compare helium with sulfur hexafluoride

[cplai]

@32deej It would be neat to have one beaker pouring sulfur hexafluoride gas downwards and another upsidedown beaker releasing helium upward and observe how the two streams of invisible gas "splash" into each other.

[32deej]

@cplai ooo yeah good idea

[KaxxxE]

like hell

[keyfloater96]

kool man

[noname311298]

seeing is believing?did any one remember in a vsauce leanback theres a video call "we cant believe what we see"

[Kj16V]

I hate the way American shows just repeat the same footage over and over throughout the show. Lazy programme making.

[fizzlemanizzleable]

Views before Vsauce - 503

Views after Vsauce - 60'422

[cplai]

@fizzlemanizzleable I checked the Youtube Insight statistics. The total view count on Oct 22 before the Vsauce army passed through was 42995. The count grew 50% in 2 days. I hope it would go higher still.

[Event0011]

@fizzlemanizzleable Yeah, and the past video in this playlist is 21k

[TheAidamus]

lol dick tits

[shadow19734]

god, everytime someone coughs I'm gonna hit them in the face because of this, so gorss

[feastluva222]

film sulfur hexafloride!

[superzandermon]

7 people didnt see the gorilla

[Itbeh]

i wonder what would happen if a person farted in front of one of those cameras?

[andrew1357984620]

But did you see the gorilla?

[H057IL3]

I need to gain the superpower that allows me to see in Schieren photography, that way I don't have to ask who cut that fart.

[H057IL3]

I'd love to see a transparent balloon filmed using this technique.

[Robmeisterflex]

That is fucking cool

[crazypika12]

vsauce passing through~

[TheN1ckz]

@crazypika12 YOU ARE NOT ONE OF THE LEANBACKERS! DESTROY HIM! HE IS NOT ONE OF US! GRAB YOUR PITCHFORKS AND TORCHES! GOGOGO!

[SecretKassemG]

i farted

[GREENGALAXYHERO]

WHAT hot air rises 

[spaghetti4536]

WHERE CAN I GET THIS CAMERA?!?!?

[windro10]

staying 6 feet away from everyone now !!

[TheGodofspeed]

Your video has been invaded by vsausers, surrender or meet your doom.

[0LoIo]

u can see ghosts !!

[miguel8yuri]

Thumbs up if you think he looks like he is in hell lol!

[SnappyK9]

in soviet russia AIR SEES YOU

[LazyPenguinsBuddy]

Bitches, i bend light around a razor blade for a living. You hating?

[PuffyDustin9]

what happens if u fart?

[MrAineg]

So....that video with a fat guy farting was real? Man i wanna do something artistic with my farts from now on

[uhelp06]

VSAUCE SWAT TEAM!!!

[belieberchick101]

WE ARE THE VSAUCE ARMY WE COME IN PEACE :)

[Jellysmackle]

actually hot air does not rise. but because cold air sinks it is pushing the hot air up. get your facts right

[noirman345]

So, we're all human torches?

[bellottis]

so it can see my  farts?

[Timmytard190]

@bellottis I was just about to ask that!!

[7rieuth]

CAPTURE AIR FROM A SNEEZE!!

[Skyisthelimit504]

Shleeren Mleereen...

[thecrissjackson]

Vsauce Army Incoming!

[shannonluzchris]

@thecrissjackson lol so true!

[guesswho2390]

@thecrissjackson Isn't it like walking across a campus with the teacher n learning different things? :D so much better than a school!

[Liwan1000]

@HaH93 :D

[Razzfazz87]

shlirren...

its schlieren

pronounced like "ee" in need followed by an "ren" like in renderer

[TORN9000]

imagine a fart

[MrKuger9]

simply amazing!

[IanGracia]

i wanted to come up a joke with this guy --> ლ(ಠ益ಠ)ლ

i failed .. :(

[alpha493]

@IanGracia ლ(ಠ益ಠ)ლ

Y U NO MAKE JOKE WITH ME

[denniscocousnuss]

So that means you can now see a fart ..shit

[JCCTAPIA]

Y U NO HD? ლ(ಠ益ಠლ)

[madorao]

thumbs up for Schlieren Fart Capture Technique

[astralrock]

Ауу јебему, ово је до јаја!!

[Bugside]

Looks like music videos from the 80's

[Gliese0]

it's amazing to think that in a few years people will laugh at us being amazed by this just like we laugh at people that were amazed by mobile phones, television, internet

[Ferhod]

Wtf is wrong with the end?!

[hotpapilatino253]

0:14 for a moment, hes actually holding water :))

[Ferhod]

Scroll back up you're missing the video!

[tenpinbowl12]

:33

[che3se1495]

VVVVVsauce!

[pa3kj0shua]

The music is hipster :))

[MultiWip]

film rain 

[cplai]

@MultiWip Rain is visible without special photography. I don't think this would add anything interesting. You may see some chaotic air movement pushed around by the rain drops, but the picture may look more interesting if you just film one drop of water thru the air.

[MrBamboowarrior]

what if you get a boner and someone looks at you with heat camera.......

[NitrEX4]

freaking INGENIUS

[urby000]

dicktits

[bankezitter]

dicktits

[FRE5HIT]

i like the model

[123ModoNauer]

and here how it works *play next video*

[Ilamarea]

This si freaking awesome just imagine if you could have such implanted vision mode! Seeing gas auras around everything like some fantasy awesomeness bad ass force xD

[mitkou123]

0:17 Water brain

[moledonkey]

Damn, now i can't silently fart :(

[saibertoo]

#LEANBACK :)

[Vabaduce]

i know schlieren is german, but he pronounces it so bad

[agahajak]

Now i can pretend im a dragon

[XBLCHLOE]

Wow next time i hear someone coughing i'm running.

[NOExplodex]

I will never ever be capable of looking at a cola bottle being opened without thinking of this again -.-

[zhongguoren2010]

Wie er Schlieren ausspricht

[FireFoxProducts]

@zhongguoren2010 xDD Bis ich verstanden habe was er meinte, is das ganze Video durchgespielt gewesen

[StalkerHD]

@zhongguoren2010 Omg es gibt noch andere Deutsche die Vsauce Leanback gucken :D! Awesome.

[joejoe4games]

@StalkerHD ja klar... was denkst du denn... so nen coolen youtuber lasse ich mir doch nicht entgehen :D

[highguyontour]

Film a guy smoking a ziggarett

[visslevitt]

VSAUCE ARMY REPORT IN!!!!!

[Jerbod2]

Fart :D

[Lsoftproductions]

I didn't realize what he means by Schlieren, because of his pronunciation, even though i am german xD

[MedicineManMehdi]

We could catch ghosts with this.

[Jerbod2]

@MedicineManMehdi You dont actually believe in ghosts do you?

[MedicineManMehdi]

@Jerbod2

Of course not

[msms47]

omg i know we can thorw fire from out mouth :D

[theillusionoftruth]

Damn i never got to eat ice cream for science

[cruminface]

do this with a car

[legacycz]

What is the name of song that plays from about 2nd minute?

[MrValzen]

I want to fart and know when its going to hit someone in the room.

[WAYtoomuchbacon]

0:13 FALCON.......PUNCH!!!!!!!

[Daddeldu1001]

when he said it was german i was kind of confused because im german and i could not understand it because its that badly pronounced