The Equator Water Experiment

[ANDRU833]

en realidad si es verdad no se sabe porque sucede eso

[granyk]

Wow thanks for the lesson.. I was using this to teach my grandchildren. And I was amazed at how this even taught me.. Great lesson..

[likmahchoda]

I wonder if that wrist watch can pick up HBO

[TheHarryMann]

Great trick, he had a good knack of just slighlty biasing it with the half moon 'stabiliser'. Notice how slowly and carefully he removes it on the equator itself (as if a few yards either way is ??)

[Lucas17187]

Don't believe everything you see ...

[ianraider08]

look up "bad coriolis" on google. read first link

[ironDRD]

This video is proof that the Coriolis force does NOT determine the direction of the drain swirl as one moves north or south of the equator. Why? Because the demonstrated swirl is exactly BACKWARDS. The Coriolis force (which is indeed too small to regulate actual drain swirl directions) would tend to produce a COUNTER-CLOCKWISE spin in the NORTHERN hemisphere (and the opposite in the southern hemisphere).

[ricke69]

That black man is David Blaine in disguise. It's just an illusion.

[kavero84]

The coriolis effect does not work that close to equator. But if it had the water would turn the other way. On the northern hemisphere the coriolis effect makes fluids turn right, making the water turn to the right of the drain as it aproaches, then spiraling left around the drain. But it's a good scam...

[erc814]

THIS IS NOT A TRICK... and it has nothing to do with the coriolis effect.

This demonstration proves three facts; 1. The earths magnetic field is weakest at the equator and increases in strength as one moves towards the poles. 2. that this magnetic field is hemispherical. 3. and most incredible of all, that the north and south magnetic fields rotate in different directions, one clockwise and the other counter clockwise.

magneticism is one of the least understood forces of nature..

[Vickyokiss]

If you still thinking it isn't true, you may look for Ekman Spiral on google....

[Vickyokiss]

So funny, people that thinks that the Coriolis effects just works for hurricanes, and they say they are physics. I can't believe it!! Man, the Coriolis force affect every moving object in the surface earth!!! It's more notorius in hurricanes, but it doesn't means that the smaller things doesn't be affected...

[Kirobulin]

this still does not answer my question of which way a toilet flows when you flush on the equator

[tampicokeed]

@Kirobulin flows the direction the manufacturer designed it to turn. get your face a little closer, you will see that the water is directed in one direction.

[jonasgjohansen]

LOL cheated by a 3 world hobo :-)

[jonasgjohansen]

Cool... at least it is a good scam.

[MNCPMSteve]

you only need to wathc how he removes the divider from the water. It will only take the slightest of bumps in the desired direction to get things spinning. THAT is his great illusion. Did anyone notice how much care he took on the equator? I'd say he still needed a lot of practice performing that stunt, as iceskater1 said, although it technically actually is possible to create this experiment, you would need a MUCH larger and perfect dish for this. A small dish such as this, impossible...punked!

[rolanduzer]

I dont care what all you "experts" say....try and duplicate this scam yourself. Maybe its not the Coriolis effect, but it sure works.

[vintason]

I also experienced this :) in Borneo :)

[dragonfiremalus]

Using different containers for each try. probably has a small difference in each that affects it. You can see the massive difference in the shape between the first two and the third.

[wesleyooms]

hahaha, I never knew you can walk from the northern hemisphere to the southern hemisphere that easily. This must have been the way to find the equator.

[raVen670]

Not only is if fake, but he even gets the directions wrong! Even if the effect was noticeable, the water should spin counter-clockwise in the northern hemisphere. For example: Hurricane motion!

[sownzgr8]

now do this again in a flat bottom container

[utubeiplay]

Of course it's a trick, and the tourists are hooked mercilessly: ignorance costs!

The sink lasts 20s: the Earth rotates by only 1/10 of degree and nothing can detect it (oh, well, not THAT water anyway :).

But I don't think it's a slight turn in the "stabilizer". The money-gainer always pours the water off-center so to affect it with an initial spin. Dividing the water can be eye catching but it's useless: the two halves keep turning by themselves and enough of the angolar momentum is kept.

[utubeiplay]

Of course it's a trick, and the tourists are hooked mercilessly: ignorance costs!

The sink lasts 20s: the Earth rotates by only 1/10 of degree and nothing can detect it (oh, well, not THAT water :).

But I don't think it's a slight turn in the "stabilizer". The money-gainer always pours the water off-center so to affect it with an initial spin. Dividing the water can be eye catching but it's useless: the two halves keep turning by themselves and enough of the angolar momentum is kept.

[kiera791]

@utubeiplay lol

[StopMotionMind]

You can see him slightly moving the board that is supposed to "stabilize the water"

[koolkoollo]

fake look at the paint in each section northern southern and equator RIGGED

[JBofBrisbane]

Tourist con.

[khazmiran]

BWAHAHAHHAHAHAHAHAHHAHAHAHAHAH­AHHA this shit never gets old

[1947west]

I guess I'm one of the stupid tourists that many of you are talking about, but I did experience a similar demonstration in Ecuador several months ago. We were exactly on the equator, the local only used one sink and the ground was level. The water swirled in different directions on either side of the equator and went straight down when the sink was on the equator. There was nothing fake about it.

[realisticHomeboy]

@1947west Yes, it was indeed fake. I was in Ecuador last summer, seeing this "demonstration" too.

The guide is the one controlling how the water will swirl or not swirl. There is a trick to how they do it.

As the guide actually also does say, you have to be hundreds of miles away from equator to actually see a real effect. If you ask them, they will also admit that it's a cheat.

Just like their experiment with pulling down your hand or balancing an egg, there is nothing to it. Tourist trap!

[rogerpenna]

@1947west

1 - did you make the test yourself??

[iceskater1]

@1947west Not true... I'm a physics major, and if you do the calculations you'll see that the direction of water flow in such small quantities can't be affect by the Coriolis force. The Coriolis force only affects things as large as hurricanes. The water in the sink will turn any way it has a slight nudge to turn. So if you turn the plug slightly, or if you have a textured bowl, or if you give the water ANY initial direction at all, that's the way it will spin.

I'm sorry, but you were scammed.

[mebetalon]

The Coriolis effect begins the slight movement which is then amplified by the radius of rotation growing smaller as the vortex approaches the drain due to conservation of angular momentum. It's real.

[tampicokeed]

@iceskater1 "Not quite true" Experiments have been done with very large 3-4 ft dia tub, very small externally opened drain, after filling letting set 1-2 weeks in very calm controlled area before openng drain, etc. -- which works to effectively demonstrate the coriolis effect. Obviously such an experiment is not going to be done 30 ft, 30 mi, 300mi, or even not likely 1000mi from equator. For all practical purposes there is no coriolis effect close to equator.

[rogerpenna]

to everyone here... I am brazilian living in southern Brazil, near Uruguay... latitute 30 south. Water turns in different directions at each sink and toilet in my house.

the coriolis effect CAN NOT be observed in such small scales. Its a urban MYTH (in small scale systems)! Dont pay attention to this video!

[Wintendows]

@rogerpenna fok u ... ur a hater

[rogerpenna]

@Wintendows

speaking the truth makes you a hater?

[iceskater1]

@Wintendows That's not "hating". It's called "stating a fact".

[Wintendows]

@iceskater1 I dont know, I live far away from the ecuator :(

[bizzybone951]

thats crazy and watchin the simpsons made me learn this

[rogerpenna]

@bizzybone951

crazy and wrong. And the Simpsons is also wrong. Urban myth perpetuated by some poor tourist traps in the southern hemisphere.

btw, I live in Brazil, southern hemisphere, and I have water rotating in clockwise in 3 sinks and toilets in my house, and anti-clockwise in other 2 sinks/toilets.

Check Wikipedia for Coriolis rotation. In small scale systems as the ones in the video, many other factors come into play...

[rogerpenna]

@bizzybone951

... like for example, as someone else already pointed out, the TWISTED PAINT in those funnels. The pain is slightly beveled over the plastic surface, and that alone already influences the direction of the water more than the coriolis effect, at such scale.

Look for Coriolis effect at winds, ocean currents, hurricanes, etc... not in small scale experiments.

[spolo123]

This might be true as the rings of Saturn only make some meters in thickness. Check Wiki!

[jonasgjohansen]

@spolo123 Hi Hi Hi. try messuring the other direction...

[vinomike]

Fake, fake, fake. 3 different funnels, all rigged with a twist in their design.

[NScott45]

if that were the coriolis effect at work, which it obviously isn't, the water should turn COUNTER-CLOCKWISE in the NORTHERN hemisphere... fail

[iceskater1]

@NScott45 hahaha I know, right? They could have at least kept that straight! Definitely a fail.

[bonecloe]

The coriolis effect only acts on very large bodies of water (oceans). Notice the flaw in the scientific method here, being that different "sinks" are used each time. This manipulation is easily reproducible using appropriate drains and sink shapes.

[sidewallfusion]

An excellent demonstration.

[rogerpenna]

@sidewallfusion

actually, a terrible flawed unscientific and rigged experiment.

[sidewallfusion]

@rogerpenna  ok please explain

[rogerpenna]

@sidewallfusion

I explained above, in the other posts.

[dbelamkarsol]

i am very happy to see this three video cllip . I thaks to STUARTJOHNSON29

[jimmyriba]

The Coriolis force is much, much too weak to have an effect on such a small body of water. It's a trick to make money.

[RayCathode100]

This is a hoax. The force that creates this apparent circular motion of the water is tiny. To see it you would need a very very very large tank, well away from the equator, well away from any other external forces and then - you may not even witness it. I admire this guy's entrepreneurial abilities but it's not that simple folks!

[89premier]

This doesn 't become obvious in such small scale. Did you found the exact point of the equator gentlemen in this video??? Only there coriolis effect doesn 't take place. How you know that you are exactly on the equator?

[hotfuzz152]

For this to actually take effect you would have to walk much farther than 10-15 feet. Though it is a great way to make money off tourists! =P

[erinshorty09]

@hotfuzz152 How would you fake the direction of water?

[atrodetoni]

@erinshorty09 Easy, the container is different than the other. With the same cantainer the water will rotate the same direction...

Coriolis efect is only seen with a bigger container and much more water , longer time.

[ee02108]

@hotfuzz152 This will not take effect in 10-15 feet or in 100 ou 10000 or 100000 or 1000000, ..... this only takes efect if the the sink got something like 100Km of diameter.

[hotfuzz152]

@ee02108 The Point is this is just a way to make some money off tourists, and this is not an accurate video and should be noted so that people know.

[ildarmail]

it's impossible

[FORZALOTD]

coriolis effect cannot be observed on such small scale! water there rotates according to how that man turned the water. When he wants to show that on equator no force is acting, he waits the longest for the water to calm, to avoid any effect he may have caused.

[hotfuzz152]

@FORZALOTD yes you are correct!

The drain for the one done on the equator is much larger and so the water drains faster, that is why there is no spinning. Like you said the water is moving in the direction he wants it to be going.

[DarkApollo1000]

@FORZALOTD

It cant? really? Seems every time I use a funnel it happens.. I call that a small scale. Have you actually ever tried to make the water counter rotate? If so, post a video. @Hotfuzz152

The size of the drain has exactly NO effect on water rotation. My bathroom tub has a smaller drain then the toilet, and they both rotate clockwise. The bathroom sink is smaller still and it rotates clockwise as well.

[RockTheOcean4me]

This is real, nice to see this uploader.

I am wondering, how many meters did you walk from one spot to the other, 10 meters, a kilometer ?

[gronfuzius]

I'm not convinced. He used a different bowl for each experiment. And he could influence the direction of the spin with this thing with which he sais he stabalises the water. Well, I learnt in school that the Coriolis effect is not strong enough to influence the spin on such a small scale.

[agibon]

so incorrect !!

In reality, the northern hemisphere is counterclockwise and in the southern hemisphere is clockwise, look to all the sattelite pictures!!!! I'm studying physics at univ and we've to study the coriolis effect, so i know what i'm talking about!

[cerebral200]

so what's incorrect? the experiment shown in the video? doesn't look doctored.

[agibon]

Yes the experiment in the video is incorrect. Even if you absolutely don't know what is the coriolis effect, you can check out the hurricanes on the satelite pictures, you will see that it is the opposite of that in the video.

[kubush]

@cerebral200 Not only do they use different drains but even the tinies push of the water would determine the direction of spin...slight of hand anyone?

[EyeLean5280]

@agibon, in satellite pictures, aren't we usually watching clouds being pulled up into a low pressure system? When air moves downward in a high pressure system in the same hemisphere, doesn't it go clockwise? I'm not seeing how a satellite picture of low atmospheric pressure systems relates to draining water.

Explain, please!

[agibon]

@EyeLean5280

I'm not a meteorologist but I know air is indeed influenced by different meteorology effects but surely by the coriolis effect at (very) big scale because the coriolis effect is a very little force. Due to the coriolis effect, objects deflects to the right in the northern hemisphere (i will not write any formulas, but it's true).

[agibon]

So let be a molecule of water in a very big funnel @ the northern hemisphere (a diameter of more than 10kilometers for an efect of som centimeters) the molecule will deflect to the right will collide on the side of the funnel (but will also move forward bcause earth turns (=> formulas)) nd will continu its way in the funnel that makes the counterclockwise in the northern hemisphere. I dont study metereology (physics is hard enough :-p) but when huricanes r formed thats the way how molecules act.

[agibon]

Due to the coriolis effect, hurricanes cannot be formed on the equator (or rarely). But like i said, i know air is influenced by more than the coriolis effect, for example in tornados, the coriolis effect doesn't do anything (maybe a bit, but it's negligible).

[smokey651]

@agibon You mentioned tornados. You realize the direction they spin is determined by which side of the equator you're on? Tornadoes don't form on the equator.. but if they did.. which direction would they go? Or an even better question... what would happen to a tornado if it crossed the equator?

[agibon]

1) If it happens that a tornado cross the equator, the direction it spin of winds, air, etc. in the tornado will absolutely not change. A tornado is completely different than a hurricane (size).

[smokey651]

@agibon

Well, I can think of some fairly smart people that would beg to differ with that. But Tornadoes don't happen near the equator... so we'll never know what happens for sure.

[agibon]

2) The spin of the hurricane is determined by the coriolis effect. Not the tornado because he is too small.

[agibon]

Damn, you've got to read the third first, then second, the here below, fault of youtube.

[kubush]

The coriolis effect is something that is most apparent in our weather system. Hurricanes in the northern hemisphere spin counter-clockwise and the opposite in the souther. The myth is that water draining in sinks and toilets would have the same effect and thus spin like hurricanes do. This is false, the coriolis effect is too small to be a significant factor on small amounts of water.

[EyeLean5280]

That's correct but not for the reasons you give. In the course of my studies, I've discovered the coriolis effect HAS been shown to work on draining water.

But conditions have to be extremely well controlled so that other forces don't counter it. Toilet water is influenced by the construction of the bowl.

You can look through the archives in "Nature" to see the results of the little-known study.

[kubush]

If you actually read the study that was done awhile back you would know that the tank they used was some 6 feet (around there) and was allowed to sit for 24 hours and blocked from any other influence. When they let it sit for only 2 hours the water spun in either direction. Conclusion: The coriolis effect is too insignificant to play a role in everyday drainage of water.

[EyeLean5280]

No need to get all condescending, pal.

I did read the study. I know it was done a while back (relevance?) I mentioned above (did you *actually* read my post?) that the conditions were highly controlled and not related to everyday phenomena, and was barely contradicting you at all. Just adding detail.

Grow up.

[kubush]

I apologise if you took my tone as condescending. Not my intention. I am not sure why you wrote that comment to me in the first place since my statement about why the coriolis effect is insignificant, is true.

"(relevance?)" I was just trying to give a reference to what I was refering to.

[EyeLean5280]

The reason I thought you were being condescending was the phrase "if you actually read the study..." But if that's not what you meant, I'll take it back.

As for why I replied to you, I had misread your last line. So my apologies on that.

Truce?

[kubush]

"Truce?"

LOL. Indeed. :D

[thatisfunnyveryfunny]

this is probably have to do with the N/S pole, its like a magnet. the equator has the same force from the two poles so maybe thats why its like that.

[kubush]

LOL. When was the last time you tried manipulating water with a magnet?

[Whiteblooded]

I really don't think that this is actually showing the coriolis effect... You'd only ever notice the coriolis effect if you were right ontop of one of the poles and had a HUGE basin... I'm guessing that here, this appears to be spinning this way because of the paint on the side of the basins.

[Reality9O]

That little shitty sink is waay to small to demonstrate the corioliseffect, that black guy is a bullshitter. To really show a true corioliseffect example he would have to use a sink that was atleast 50 meters

[naumarcheriscool]

you dont know anything about it u can see the coriolis effect on your bathtub -.-

[Reality9O]

Wrong. Ive studied the corioliseffect @ college level, I know what im talking about.

What you can see in the bathtub is water being drained down the pipes, its not the real corioliseffect.

Do some more researching then youll know what im talking about.

[EyeLean5280]

@Reality9O, have you replicated the experiment yourself, at the equator?

[EyeLean5280]

@Reality9O, why do you think bathtub drains would cause a whirlpool?

I'm not trying to be a jerk, I just want to know more about this.

[vortexf6]

You are correct... This is a scam... so annoying...

[Reality9O]

Thanks for understanding, obviously I've gotten a thumb down, thanks to all these tons of uninformed/simply dumb people who refuse to do some researching before commenting heh..

[Musicfan5ft8]

I swear to god Equator is some city in Mexico???? Or is that Ecuador?????

[Reality9O]

Equator is the "line" of center of the earth (axis)

ecuador is a country..

[Musicfan5ft8]

...huh???

[Reality9O]

What is it that you cant understand? Equator isnt the same thing as Ecuador (which is a country) located ON the eQuator.

[Musicfan5ft8]

Is that on purpose??? Or just a coincidence???

I think I'm starting to get it, why does the earth have a line on it?

[Reality9O]

Heh, its just a coincidence, search for "equator" at google pictures, the line is not REAL, its just the center of the earth kinda.

[Musicfan5ft8]

ok :)

Thanks you made me not as dumb as i used to be, you will go down in history for this :)

[henrikssali]

This video clip was shot in UGANDA (East Africa) on The main Highway to the Western part of the country.(On Kampala -Masaka road to be exact)

[droop522]

it's the paint that causes this. the coriolis effect is a macroscale phenomenon, it has effectively no influence on such a small body of water. Just look...the paint goes in opposite directions. If this were only intended to to show you what you are supposed to see, then why not make it just an arrow along the top? because this is a trick, and people don't think about things...they just want to ooh and aah

[warrior7772]

The video is labeled incorrectly. Didn't anybody notice the Nothern hemisphere had a clockwise spin and the southern part had a counterclockwise spin? Well, it is actually the opposite of that, so the vid was either wrong or labeled wrong.

[YoMomSaddam]

The answer is NO. Coriolis force takes hours to affect a liquid. Water does not inherently spin down the drain in the opposite direction in the toilet - it does not sit there long enough for it to have a coriolis force effect.

Water spin direction = f(drain, jet direction, time)

[divinesystems]

it says in the credits at the end it was filmed in uganda

[markmusette09]

nice :) where is this place?

[Musicfan5ft8]

mexico

[Musicfan5ft8]

Isn't the equator that place in Mexico????

[NeverevenStudios]

ಠ_ಠ

[Musicfan5ft8]

...well isn't it?

[sickayda]

that actually very exiting!thanks for that !

Sickayda

[kutigoi]

I BELEIVE THIS....my friend who flies an aeroplane(Pilot) took me flying in a 4 seater cessa aircraft...as we were leaving Papua NEW GUINEA and was about to cross the equator for a country called TheGilbert Islands ,he yelled out to me to watch the plane's COMPASS and the HEADING INDICATOR,the moment we flew over the equator,Both instruments swang around indicating zero(OOO=360) then moments after crossing they pointed back to our heading...amazing..

[jsoscia3]

Fake ... those Ugandans have you naive Americans all duped.  lol I guess it would be easy to make money off you

[FallingDarkness91]

This is real - I did the same test in Ecuador and you only have to be a short distance in either hemisphere to change the flow.

[crashdum]

actually, Coriolis force has an effect, but only if the tube is perfectly symmetrical, smooth, and water does not have movement (stayed for a long while in the sink after filling).

Here, I hardly think it's the case : the trick might simply lie in the fact that the two first containers are not horizontal, and the different orientation gives different water flow...

[7Lycosa7]

this is not fake. I've been to Kenya last summer to a different location on the equator and tried a similar experiment and the results were identical to the video.

[DZHAFER7]

Super

[spolo123]

To those who think there is a trick with the funnels, how could that work? Could paintings influence it? Sounds more like Voodoo! Or is this using magnetohydrodynamic then? Not bad for a simple scam! No really, how works the scam then?

[Quinzio]

Just how far you have to move away from the Equator to see the effect on a bowl of water ? In the video they seem not to move further than 100 meters or so ? Is it enough?

[cutelyaware]

Hoax. You'd need a volume of water over a kilometer across before you could see the true effect of the Coriolis effect anywhere in the world.

[robbsclassics]

No, my bathroom sink is maybe 18" (1/2 m) and it happens every time. Oh, you could prove yourself wrong if just went into your bathroom..... And the point of a hoax is to somehow scam someone...who's making any money here? I'm sorry, but I will trust someone that I've met that lived in the outback before you.

[cutelyaware]

I couldn't prove myself right or wrong with your proposed experiment because one sink just gives you one data point no matter how many times you test it. My hypothesis is that half of the world's sinks will consistently drain one way and half the other and that the difference depends upon their manufacture and not with where they're installed. I suggest that you try your own experiment on some different sinks and I bet you'll find some that always go the other way.

[vinschutte060672]

I am happily surprised that people get so excited about this experiment. I have watched a couple and discussions run riot everywhere. Been to Nanyuki myself and, being a geogreaphy teacher, tourleader and creationist... I am a believer. They did the experiment with the same funnel in three different places and I don't believe the locals have any interest in con-ing tourists. The scam would be too big if all folk involved would be into it. I don't believe some evil force is training them to fool

[vinschutte060672]

us all.

I think, as a teacher, we should just be happy that people are at least forced to think about something scientifical during there expensive and rather blunt holidays. And I love how involved people tend to get into this... Also on the trip that I guided in Kenia, three on a row, all including THE experiment, there was much discussion. Between critics and believer.

All in all... great stuff!

Oh, and I often teach about the coriolis effect and use my own video. Fact is indeed that

[vinschutte060672]

in my video the water runs clockwise at the Northern hemisphere, whereas the theory states, and we can indeed see on the weather news, a low pressure area turns anti-clockwise, as a result of an "afwijking" to the right.

This is something that still puzzles me, and I am glad about that. So I can inspire my students to think about it and discuss.

Would anybody know of some more interesting geographical experiment one can visit when traveling? I plan to start collecting them!

Keep it up!

[jsoscia3]

I'm glad you weren't my teacher.

They are scamming the tourists who are easily fooled

[monkriddler]

I read a physics paper once which said the coreolis effect would only work on large systems (many tons of fluid).

[PabloMHARG]

Thats it´s TRUE. Yo vivo en Argentin y aqui gira como las agujas del relog, en mi último viaje a Miami hice la prueba y giraba contrario a las agujas del reloj. Es muy importante que el agua este en reposo, ya que si esta en movimeinto el resultado puede ser adverso.

[dongiuan]

the speaker says that in the southern empisphere water run in clockwise direction, but the video shows the exact contrary.

in the northern emisphere he says that water runs in counter-clockwise direction, but water goes in clockwise direction.

so... is it a fake?!?!?

[dongiuan]

sorry, i heard wrong... the speaker tells exactly what he see, but the coriolis effect would be the opposit!!!

[peterlangdown]

wiki states:

In a large, circular, symmetrical container (ideally over 1m in diameter and conical), still water (whose motion is so little that over the course of a day, displacements are small compared to the size of the container) escaping through a very small hole, will drain in a cyclonic fashion: counterclockwise in the Northern hemisphere and clockwise in the Southern hemisphere—the same direction as the Earth rotates with respect to the corresponding pole.

[jez3122]

I've found so many conflicting views on this on the internet so i decided to try it for myself.....i live in the UK, In my kitchen the water runs clockwise down the sink and in my bathroom it runs anti-clockwise down the sink....FACT!

[philyfree]

@jez3122 thats just the design of your plughole.

[rogerpenna]

@jez3122

your bathroom probably is located inside a wormhole singularity caused by CERN, so it was in some way transported to the southern hemisphere while still being connected to the rest of your house in the northern hemisphere.

This must be the only explanation!! lol

[jez3122]

@rogerpenna

I KNEW IT!!!!!:)

[gilgtc]

This is a famous scam which originated in Kenya. Michael Palin(from Monty Pyton)'s Pole to Pole shows him getting duped . They are just feeding on the common misconception that the coriolis effect plays a role on small systems. You really need something at least the size of a lake for the coriolis force to size up to the dominant forces acting on the water body.

[StealthMonkey25]

you guys ACTUALLY THINK that the Hemisphere is fake?? YOU FUCKING DUMBASSES, le tme tell you something about the CORIOLIS EFFECT fucktards, step in my class of geography for DUMBFUCKS, the hemisphere effect=real, i tested this effect on January of the 18th with a funnel, i used the same one on BOTH HEMISPHERES, and it works... you dont believe me? it doesnt even spin when your in the middle either... still dont believe me? ask a fucking scientist...

[rollmebackagain]

with all due respect, the no one disputes the existence of the coriolis effect. however, what you need to realize is that the earth angular velocity is too slow to have a meaningful effect on small systems. plus, the effect would be stronger toward the poles, so doing this experiment close to the equator makes the coriolis effect from earth much weaker. in this video, there are three different funnels, each designed to have different dynamics.

[djfl00d]

Yeah man, look at the direction of the painted swirl on the funnel... he switches funnels during the trick, which wouldn't be necessary if the effect were real.

[cm8hadsptc]

Totally fake: I would like to see what happens if you use THE SAME FUNNEL at the three places.

Even if the hemisphere effect were real, a small difference of some hundred meters away through the Ecuator wouldn't make a measurable difference.

The twirling effect is caused by the shape of the funnel, just that.

[shawtycorp]

don't hate the player hate the game son

[howwho80]

FAKE! FAKE! This is a stupid trick for stupid turists. Jesus! I can do it in my own garage. If you want to learn about Coriolis efect please read 'Dynamic Meteorology' of James R. Holton or 'Fluids Mechanics of the atmosfere' of Robert A. Brown

[reprobacious]

I'd think someone as learned as Mr. Brown would know how to spell Atmosphere. :-)

[5744ellis]

And tourists , and effect.