Extraordinary stroboscopic effect

[ciocirlan21]

We need to wait for the world upddate... announced this year on 24 sept. :D

[mrmathreex]

FAKE

[Dado709]

@mrmathreex Мудак

[MrBaron23]

@mrmathreex фак тебе по всей мм.. лицу, а это правда. Пендосов то физике не учат поди

[himmler251]

@mrmathreex its not fake thats a REAL MI-24 Hind, The rotors and the cameras pixels are moving aat the same speed, therefore it makes the aircraft feel like their blades arent spinning. This is VERY common in older cameras

[ifyouwantmefindme]

Нет русских комментов в топе? Хватит это терпеть!

[Merrick0001]

It's fake you can see the strings ;P

[heloartve]

Screw gravity!!!

[tigerkoley]

Excellent capture! Thank you!

[sib0kralj]

lol, wtf ?

[xdeville1]

it´s a sailplane !!

[vava54own]

In soviet russia... air flies you.

[wwwtotalitaerde]

The German BND is the renamed 3rd Reich GESTAPO.The BND had organized the delegate Scheuermann of our county to visit or home.To allow him to personally experience how my brother and our parents had been tortured.The BND continued to torture my brother.He was assassinated on July 11th2009.Half a year after the assassination of my brother the CDU delegate Mappus from our district town Pforzheim was made prime minister of the German land of Baden Würtemberg

The CDU is the ruling party in Germany

[doni05111982]

How cool is that xD

[RobinEnrydCarlsson]

Answer to why its happening: The camera can only film in an certain amount of frames per second which makes the propellers seem to not rotate whilst the helicopter is flying.

[hefterify]

@RobinEnrydCarlsson yeas i agree with you.. nutthing special but still its cool to wach it :))

[MrJOHNVICK]

Chuck Norris was piloting this helicopter

[hyAxis]

And they say dragons flying backwards in Skyrim is a huge bug...

[superspartan11]

You all know what happens in Soviet Russia..

[Graywolf116]

"Weeeeeeeeeeeeeeeeeeee!"

[KarmazynSlovian]

It is Mi-24, Flying Tank ;) pozdro

[MadMuz2000]

my toy helicopter flies exactly the same way... Nothing special.. :)

[TheEDguitarman]

insert soviet russia joke here:

[TheParsonsRS]

@TheEDguitarman LOL

[badwolfshamma]

Rreality.exe has stopped working, please restart later

[roflastc]

It's called the rolling shutter effect. It has to do with CMOS sensors. But i'm sure somebody already said that.

[crossbladetube]

@roflastc this is not cmos sensor. this is ccd sensor obviously!

[TheSimCaptain]

You can do the same thing to a vibrating rubber band without using any high tech. There's an article about it at bruce-bowden.suite101.com/cult­ivate-your-childs-inner-scient­ist-a396282

[Orlandohhh]

It is turning so fast that looks like is stoped. If you look others you will see they biginning and then geting faster and you see as it is stoped. Surely this is natural video.

[L0VE2TROLL]

@Orlandohhh completely wrong. the fps of the camera and the blades are in sync, so every "picture" the camera takes, the next blade is back in the same place making it seem likes its not moving.

[NATOcodename762]

FUCK YOU NEWTON!!!

[1lln3ss]

That's how Chuck Norris flies an helicopter.

[DjFixxxer01]

It looks like a helicopter from some early 90's PC game lol

[TechSgtCrume]

Goddamn modders. Probably has aimbots as well.

[ipadize]

lol it looks like a bug in crysis xD

[tubedydeck]

Trollcopter

[naveen2681991]

This is known as Stroboscopic effect.

They flash a light with frequency equal to the RPM of the fan which creates an illusion that the fan is not rotating.

[ZcudTheBlind]

@naveen2681991 actually it is because of the frames per second taken by the camera D:

[presmr]

its ok, he's lagging

[Burgsonification]

That guy is gonna have a physics hangover tomorrow morning.

[jamminfool]

too cool!

[gogiya41195]

Chuck Norris is the pilot of this thing

[NeKoShinn666]

Haxzor =O

[michiel2047]

haha this is cool.

[mada1241]

Im glad russians in cod cant do this..

[ParkingSucks]

Clearly the pilot is flying and he just happens to be pulling the helicopter with him.

[doremonhg]

You're developed a very high latency

[scottthompson1]

I would argue that energy flows from negative to positive because of the way blackholes (positive) consume light / energy (negative) and also lightning flows from clouds (negative) to Earth (positive).

[xTEHWAFFLESx2]

@scottthompson1 stay in skool

[scottthompson1]

@xTEHWAFFLESx2 Get a job

[michiel2047]

@scottthompson1 the fuck does that have to do with anything? :p

[scottthompson1]

@michiel2047 it has no bearing what-so-ever with this page or video. I made the comment on another video - based on the flow of electricity from one source to another - but somehow - it was posted here. My apologies to anyone that wasted their time reading this.

[xSLAYERx17]

They must have known that at a certain rpm the blades would do that. So Co000000l!

[SlidGarm]

Holy shit

[akiratrooper]

It's a glitch, they patched it on the latest version xD

[CruZ9992]

This modernised Hind is from the Czech republic, it's the Mi-24V/35

[rsxhitman]

@CruZ9992 modernizing something doesnt make it yours...

it has little to no relations with czech republic

[CruZ9992]

@rsxhitman I didn't said that this Hind is a czech product... Of course it's russian, but this hind has camouflage and symbols which belong to Czech air force. So it's from the czech republic (czech air force), it was modernised in the czech republic, but the type of the helicopter is russian.

[xxschlager420xx]

Powered by Chuck Norris. Nuff said.

[kiwiodoom]

God will fix this in the next patch...

[zizo47]

@kiwiodoom Lol, genius!

[nubserver]

@kiwiodoom lol'd

[PiterburgCowboy]

this was the infamous Hind-N. N for Norris!

[thisismikeyy]

chuck norris was piloting that helicopter

[milane39]

it's not Russia, this Hind may be Hungarian, Czech or Romanian...

[hoffy1138]

chuck norris copter

[gaypotter]

who forgot to turn on the engine?



[3uu649]

lol chuck norris

[TheAwakenedHeretic]

Haters gonna hate.

[sonickrnd]

Э... Бензин наверное кончился?

[TuneXploderz]

The pilot wants to fly.

The helicopter doesn't want to.

The pilot doesn't give a fuck about that.

[Salger12]

@TuneXploderz Fucking lol

[Corvette35000]

@TuneXploderz LMFAO

[oOGehirnfaschingOo]

@TuneXploderz the pilot is chuck norris

[BurgerGrabber]

@TuneXploderz pilots gotta be chuck norris

[watzupdawg]

Chuck Norris flew that.

[JoeBGR]

now thats..

*put on glasses*

a rofl copter

YEEEEEEEEEEAAAAAAAAAAAAAAAAAAA­AAAAAAAAAAAHH

[alienorbiter]

Russians don't follow Newton's Laws. Russians only follow russian laws!

[smeagle9999]

lol what?

[JAYcovey706]

hhahahah it has to do with the frames per second on the camra

[kesakahn]

that is the first soviet russia joke that is actually funny ! congrats

[oliveros46]

Mannn I'm tripping balls! :O

[Derviczen]

I meant "should allow posters to"... Ok, now it's plain trolling...

[Derviczen]

And Youtube should allow the posters to delete their own posts.. or else have a spelling check... or else pay my Ritalin so i can pay more attention!! That's 3 options... Very democratic...

[Derviczen]

For some reason, the stroboscopic effect in chopters in a great source of original e very funny comments. It must be the stroboscomic effect. They should study it!

[fishchunksgaming]

The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous motion is represented by a series of short or instantaneous samples. It occurs when the view of a moving object is represented by a series of short samples as distinct from a continuous view (Thanks wikipedia :D)

[paystobeawinner1]

Correct me if im wrong but

Its going so fast that u cant see it move right?

[fishchunksgaming]

@paystobeawinner1 The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous motion is represented by a series of short or instantaneous samples. It occurs when the view of a moving object is represented by a series of short samples as distinct from a continuous view

[Geo877]

@paystobeawinner1 a little wrong, it's going so fast that the blades have spun all the way round by the time the camera takes another picture, so when you play back those pictures the blades don't appear to have moved at all.

[gibbo1112]

@Geo877 yea, but they could also have spun to any of the other five blade positions... not that it really changes much...

[Kipohippo21]

Well jimmy you have done it. You broke science.

[RobertsDigital]

??????

[speedy123321]

and this people... is how hacks work on real life

[slipknot2b4ever]

spinning propeller to mainstream in russia

[Teknikly]

@slipknot2b4ever That hipster joke didn't even make sense.

[slipknot2b4ever]

@Teknikly i was hipster before it became mainstream

[bilygote]

@Teknikly Yes it does. Think about it.

[dlegere]

Well done Mr. Potter...

[Knibal999]

LOL, Jack Bauer commandeerd that heli to save someone's bacon, he just blitzed it and up he went, but forgot to turn it on. It flew anyway, right? It's the result that matters... LOL

[captainpiccard]

the blades in a helicopter only work to cool off the pilot... if it is not hot, he can turn them off... this is what this video shows...

[fitzal77]

I KNEW IT!

Gravity is a lie!!!

[Zirrcamelot2]

In Soviet Russia, You fly air.

[anthonyd5189]

@languidlogic my bad, misread it.

[anthonyd5189]

@languidlogic send me a message to my inbox because i'm curious as to how you think the tail rotor works. Again, I'm not trying to be a dick it's just that I know for a fact how they work. I'm all up for a discussion(not argument) about it. And I'll be flying later today, so you might want to 'clear the fuck out of the country'.

[teejfalconaf]

The pilot twists a governor control on the collective to specify what RPM the heli should hold. The engine management then throttles up/down as necessary to maintain that head RPM. The pilot pulls up and down on the collective to change the collective pitch, thus changing lift. The tail pedals change the pitch of the tail blades. The tail is always rotating at Main rotor * "x" (where 'x' is some gear ratio).

[teejfalconaf]

You claim what Anthony wrote is empirically wrong. Show us - empirically. Please.

You won't have much luck. What we have written is absolute fact and your ranting to the contrary only reveals your ignorance of how helicopters work.

[Danieloncarevic]

I bet that Chuck Norris is inside.

[teejfalconaf]

@languidlogic empirically wrong? You don't even know what you just said, let alone know anything about helicopters.

In almost every helicopter (if not every...there might be an exception but I'm not aware of one) there is a direct physical link between the tail drive and the main rotor drive. The tail spins at a specific multiple of the main rotor speed. Once spun up to flight speed, the main rotor is governed to its most efficient rpm. It won't change much.

[anthonyd5189]

@teejfalconaf teej, other than tail rotors, you have twin-noncoaxial such as the chinook or V-22 which have the rotors tandem or side by side. then you have the twin-nonxoaxial where the rotors can intermesh. Then theres twin-coxail where the two main rotors are stacked on top of eachother, eliminating the need for a tail rotor. And then there is NOTAR, which uses compressed air to act like a tail rotor. Look up a MD520N.

[teejfalconaf]

@anthonyd5189 Agreed, but I'm speaking of conventional helis like the Hind in this video. 

[anthonyd5189]

@teejfalconaf What you wrote is all correct...which is why Im really curious as to how @languidlogic thinks they work. He hasn't said anything to how he thinks they work, other than telling us we're wrong.

[anthonyd5189]

@languidlogic Really? You sure about that? Not trying to be a dick, but I've flown in quite a few, know plenty of heli pilots...I know how they work. The main rotor and tail rotor while in flight (for the most part) are spinning at a constant speed. The way helis yaw is the same way they get lift. The angle of the tail rotors change, just like the collective of the main rotor. Just like the prop on a constant speed prop airplane changes angle while the RPM stays the same.

[anthonyd5189]

@languidlogic tail rotors on helicopters spin at a constant speed.  they do not speed up or slow down to yaw the helicopter.

[yoiiiaaa]

The cameras FPS matches the blades RPM enough said...

[Clipster15]

@yoiiiaaa As long as the frame rate of the camera is an integer multiple of 1/5 of the RPM I think it will match up being that the propellers are evenly set around the heli's axis. With that being said, the rate of the camera doesn't have to be equal to the rate of the propellers.

[chardwreck]

@languidlogic The tail rotor spins at a faster rpm than the main rotor. This is why you still see movement/rotation in the tail. The FPS of the camera used just happen to match up with the RPM of the main rotor in a manner that every frame that the camera takes catches the main rotor in the same position as the previous frame. Nothing BS about this. Just a lack of understanding of what you are actually seeing.

[777RaiserHell]

@chardwreck Umm... Just one thing. I would be very worried if the tail rotor was going that speed in real life... very very worried. The tail rotor must spin faster then the main rotor which is why the stroboscopic effect is less evident on the tail rotor, and another thing too is that with good reason does the tail rotor go faster then the main one... it is smaller.

Perhaps check your facts before being such a smart ass?

[chardwreck]

@777RaiserHell So..yeah. You're going to repeat everything I said and ignore the fact that I just said that?

I wasn't being a smart ass. I was explaining what was happening in the video to help him/her understand what was going on.

Repeating what I said doesn't make me look bad. It just makes you look like a troll.

[scowell]

It's not stroboscopic... it's a model, IMO. Watch without sound, and judge.

[nonibandoni]

In soviet Russia, rotor blades don't mov-.. damn I suck at these jokes..

Looks kewl.

[EpiphoneLesPauI]

*connection interrupted*

[fairboy13]

It's because of the camera. The camera doenst capture enough pixels or what the fuck its called, making it stop. something like that.

[kaysandesses]

@fairboy13 You're right, it is the camera but the effect is due to the framerate of the camera. I don't understand the details, but it's really cool.

[jebestus]

@kaysandesses it basically goes down like this: cam makes 25 pics a sec. that's the fps (frames per second) of a normal cam. this cam has less fps, wich are almost in sync with the things. (blades?) so everytime the blades are at a certain position the cam takes a pic, making it look like it's not doing shit. simular things happens when you are looking at a helicopter in real life, but our "framerate" (dunno what you call it with eyes) is higher, so it looks like the blades are going backwards

[kaysandesses]

@jebestus Excellent description! Another example is the flicker from CRT monitors when filmed.

[fairboy13]

@kaysandesses yeah that.. the frames not pixels LOL :b

[LeoneLdrago99]

In Soviet Russia, stroboscopic effect is intrigued by YOU.

[baker861120]

Its the roflcopter?

[sonicfam111]

Tango down

[SinnersFall]

looks like terminator hover ship from the future

[Cognetto]

Helicopter recall...get your money back

[kiashadowwave]

Russian helicopters don't have spinning rotor blades. They simply spin the air around them.

[eRapper01]

@kiashadowwave LOL

[tafelboe]

@kiashadowwave that are chuck norris' copters

[mcdrunkin]

@kiashadowwave no sir they do not... Chuck Norris stole that chopper lmao

[burnout159]

@kiashadowwave just like chuck norrris:P

[Filo127]

WHAT ???

No soviet russia jokes ?

It is a russian helicopter , CMON !!

[Stelios7xXx]

matrix has bugs its time to escape!!!

[percyjacksonfan10]

Damn Russians and their god damn floating helicopters

[TheDeathDr]

There's going to be a patch that will fix this bug next month

[laguero99]

bug

[Janetjacksongurl]

....How is that happening!? LOL It looks like the main one isn't moving.

[Oeconomist]

@Janetjacksongurl—

If the camera captures a new frame at a rate of R, and if the rotor turns at a rate of N*R/5, where N is a natural number (1, 2, ...), then every time the camera takes a picture, there is a rotor blade where there was one when the previous picture was taken.

[Janetjacksongurl]

@Oeconomist Oh okay....Science lol

But really, I think I get it now. Thanks :)

[MrIchhabehunger]

this trips me out!

[zip0v]

Best strobe effect I've seen so far.

[AwesomeFab]

In Soviet Russia, air pushes propeller.

[recipeace15]

@AwesomeFab lmao.

[petruza]

@AwesomeFab ever heard about Newton?

[RoamenCota]

@AwesomeFab HU HU HU HU

[rccardude04]

@AwesomeFab Except during Autorotation. In Soviet Russia, autorotating propeller pushes air.

[NOBOX7]

@AwesomeFab lmao, lol its vodca fumes

[Stahlhart385]

Hahahahahahahahahahahahaha....­.. *runs out of breath* ... *dies*

[Ja2so4]

It's a russian helicopter, it don't push air down with propeller, air push propeller upXD

[Drspeedstackingguy]

*sigh* just another black ops glitch...

[FlashFireSix]

the camera shutter speed matches the speed of the propeller

[obliviousfafnir01]

In Soviet Russia, Gravity defies YOU.

[SeatBeltFTW]

Glitch!

[ALSxEditing]

Looks like a glitch in the Matrix.

[EpicDERP]

@ALSxEditing obv omgfacts

[ThElitE]

Makes me wonder if this is what's happening when we see (or don't see) UFOs acting strangely.

[mzrealm]

OMFG HAX.