This is only part of the story. Watch the whole story, it’s called “the long way down”. It’s about Ewan and a friend riding motorcycles from England to South Africa. Ewan Mcgregor laughs about how he was fooled. The guy pulled a slight of hand on him! This video only shows what they want you to see!?
Yes, this is absolutely right. The confusion people have is that an experiment - over many days - that happens to use a large basin of water to observe a force, has been conflated with the vortex seen when the plug is pulled out of a washbasin.
I like how my geology teacher just picks this video as a wrong demonstration of Coriolis Effect and tells us to find what is wrong with this demonstration, thanks but no thanks
@puterduper you are correct. he is manipulating the direction of spin depending by pouring the water in a specific side of the red bowl. If you were to wait long enough for the eddy currents to settle, the water would drain without spin down the hole.try this in your sink, but let the water settle for about 30 minutes to ensure all motion has stooped.
@MrBojangles983 When they say it's fake, they mean it's a trick. The Coriolis Force should not (and does not) have an effect on drains. Don't believe me? Fill up your sink with water and watch it drain. Fill it up again, and stir it in the opposite direction before you let it drain. It's not going to stop and spin the other way because Coriolis has nothing to do with drains, and everything to do with weather, air, and water currents.
It's a spam. Though coriolis effect play role in spin direction of hurricanes in southern and northern hemisphere but it doesn't have to do with the spinning of water in bucket or toilet etc. Here the person very cleverly pouring the water into bucket such that it's rotation becomes clockwise or anti clockwise.
I've read a demo that shows the so-called Coriolis effect this way but to see any rotation you'd need to be at higher (or lower) latitudes and you would need to wait days for any initial motion of the poured water to damp down. Then water flowing out of the basin in the Northern latitudes would turn counter-clockwise (cyclonic) just like air flowing into a low pressure zone. So OB1 is being conned.
Moreover, coriolis force is zero for any body at the equator and it would be very negligible at a walkable distance from the equator. Clearly, it is a trick used to amaze the tourists. This is my opinion. Please correct me if wrong.
FIRST OF ALL THIS IS A TOURIST TRICK. THE CORIOLIS EFFECT WILL NOT EFFECT WATER ANYWHERE, EVEN IF IT DID THERE WOULD NOT BE ANY CHANGE AT OR NEAR THE EQUATOR.
It effects everything with mass, even a rock. Off course it effects more gases and liquids than a rock, but then again can you blow a rock with the air in your lunges? what about gases or surface of liquids? ;)
@NibiruClose so the explination my oceanography professor gave to me during lecture a few weeks ago is wrong? the earth spins at a lower eastward velocity at higher latitudes than near the equatorial region. As a result any object shot north from the lower latitudes will undergo a rightward deflection. but this only occurs at great distances, not in a plastic bowl.
The time for rotation of a pendulum would be 1 sidereal day divided by the sine of the latitude. That would be about 1900years for 30ft from equator, 4.5 months for 30 miles away, and 13 days for 300 miles from equator. Thats not quite "millions of years" but you are correct, this shows that it would be impossible to get a pendulum (or a basin) to demo an effect 30 ft from the equator. Interesting question tho--how close to equator is there a pendulum set up demonstrating the effect???
Actually as a physicist i have to say that they show what people want to see,coriolis does not work that way at all, it only happens in large scales,especially in water,for example the ocean,your toilet have nothing to do with it, mainly happens cuz of the deformation of the surface,a simple experiment to disproove this video is to take large amounts of people and ask them to see the direction of the water in their homes, result is always 50-50, coriolis being affected by few meters is laughable
Yes, th test must be VERY controlled. Such as: A circular tub 4ft diameter and 1ft deep. A very small drain, (maybe 1/16 inch?) which is a small pipe welded in th center sticking 1/2 inch up from bottom. Th drain is opened by a valve in th pipe, below/outside the tub. The tub is in a very stable (think thick concrete floor) remote area, and allowed 2 stand a week after filling, and has a ventilated glass cover to stop air currents from affecting the surface--etc etc....wld capably demo th effect
The circular motion of the water is due to momentum and not coriolis force. Watch 0:50. If the guy poured the water on the other side of the hole, it would spin the other way. simple. He is just starting a circular motion while pouring the water. A body needs to be moving horizontally over the earth's surface to experience coriolis force. Here, the water is just moving vertically downwards which cannot develop any coriolis force.
this theory was debunked a long time ago, it has nothing to do with Coriolis. The perturbations and turbulences within the water creating residual angular momentum, and the minor imperfections in the container are what determines the direction of drainage.
You misunderstood something, we are not talking about a controlable lab experiment.. we are talking about your home's latrine, the cup of water with a toothpick on it's surface... there's too many variables that overcome the validity of the coriolis effect in this circunstaces... the inclination of the body studied hitted by the fluid, the friction, the composition, the (probably) random molecular collisions, the interaction with the atmosphere and so on...
I agree that whats shown on this vid is false, but you are wrong on a couple of things. Well constructed, well controlled, time consuming, tub drain experiments have very capably demonstrated the effect, as have pendulums (which is a quite small scale experiment). Also if you could get everyone to observe accurately, large scale observations of drains (not toilets) actually WOULD show a small percentage more CCW rotation in the north.
You are not quite visualizing the "website drain experiment"(lol). Think many millions of entries of data. This means that the random influences cancel each other out, and you r left with what????? This also assumes accurrate observation/reporting--because like he said,errors in this probably would not be scewed a little toward the direction most people know it tends to go. Of course we also assume way higher latitudes than this vid shows.
This isn’t the Coriolis effect! 😂😂 this is just a parlour trick idiots fall for who believe they know what the Coriolis effect is! This video has absolutely nothing to do with the Coriolis effect 👍
I'm glad you say this as I was in cape town last week and tried it in the sink before returning back to london. The water went clockwise. Exactly the same when I tried in london... I'm seriously baffled and sense it's all BS! I've no idea what the truth is now!!
This is only part of the story. Watch the whole story, it’s called “the long way down”. It’s about Ewan and a friend riding motorcycles from England to South Africa. Ewan Mcgregor laughs about how he was fooled. The guy pulled a slight of hand on him! This video only shows what they want you to see!?
Yes, this is absolutely right. The confusion people have is that an experiment - over many days - that happens to use a large basin of water to observe a force, has been conflated with the vortex seen when the plug is pulled out of a washbasin.
I like how my geology teacher just picks this video as a wrong demonstration of Coriolis Effect and tells us to find what is wrong with this demonstration, thanks but no thanks
@puterduper you are correct. he is manipulating the direction of spin depending by pouring the water in a specific side of the red bowl. If you were to wait long enough for the eddy currents to settle, the water would drain without spin down the hole.try this in your sink, but let the water settle for about 30 minutes to ensure all motion has stooped.
@MrBojangles983 When they say it's fake, they mean it's a trick. The Coriolis Force should not (and does not) have an effect on drains. Don't believe me? Fill up your sink with water and watch it drain. Fill it up again, and stir it in the opposite direction before you let it drain. It's not going to stop and spin the other way because Coriolis has nothing to do with drains, and everything to do with weather, air, and water currents.
It's a spam. Though coriolis effect play role in spin direction of hurricanes in southern and northern hemisphere but it doesn't have to do with the spinning of water in bucket or toilet etc. Here the person very cleverly pouring the water into bucket such that it's rotation becomes clockwise or anti clockwise.
I've read a demo that shows the so-called Coriolis effect this way but to see any rotation you'd need to be at higher (or lower) latitudes and you would need to wait days for any initial motion of the poured water to damp down. Then water flowing out of the basin in the Northern latitudes would turn counter-clockwise (cyclonic) just like air flowing into a low pressure zone. So OB1 is being conned.
Moreover, coriolis force is zero for any body at the equator and it would be very negligible at a walkable distance from the equator. Clearly, it is a trick used to amaze the tourists.
This is my opinion. Please correct me if wrong.
anyway, even if the C-effect could be measured here, they've got it switched around; should be anti-clockwise in the North
At least this guy is demonstrating it in the proper direction.
FIRST OF ALL THIS IS A TOURIST TRICK. THE CORIOLIS EFFECT WILL NOT EFFECT WATER ANYWHERE, EVEN IF IT DID THERE WOULD NOT BE ANY CHANGE AT OR NEAR THE EQUATOR.
It effects everything with mass, even a rock. Off course it effects more gases and liquids than a rock, but then again can you blow a rock with the air in your lunges? what about gases or surface of liquids? ;)
he poured the water on the left when he was on the south and on the right when he was on the left, that's the trick
@NibiruClose so the explination my oceanography professor gave to me during lecture a few weeks ago is wrong? the earth spins at a lower eastward velocity at higher latitudes than near the equatorial region. As a result any object shot north from the lower latitudes will undergo a rightward deflection. but this only occurs at great distances, not in a plastic bowl.
I just got one hell of a lesson from a Jedi as well as a ex heroin addict
The time for rotation of a pendulum would be 1 sidereal day divided by the sine of the latitude. That would be about 1900years for 30ft from equator, 4.5 months for 30 miles away, and 13 days for 300 miles from equator. Thats not quite "millions of years" but you are correct, this shows that it would be impossible to get a pendulum (or a basin) to demo an effect 30 ft from the equator. Interesting question tho--how close to equator is there a pendulum set up demonstrating the effect???
Im glad that they got water to play with there now...
Actually as a physicist i have to say that they show what people want to see,coriolis does not work that way at all, it only happens in large scales,especially in water,for example the ocean,your toilet have nothing to do with it, mainly happens cuz of the deformation of the surface,a simple experiment to disproove this video is to take large amounts of people and ask them to see the direction of the water in their homes, result is always 50-50, coriolis being affected by few meters is laughable
Yes, th test must be VERY controlled. Such as: A circular tub 4ft diameter and 1ft deep. A very small drain, (maybe 1/16 inch?) which is a small pipe welded in th center sticking 1/2 inch up from bottom. Th drain is opened by a valve in th pipe, below/outside the tub. The tub is in a very stable (think thick concrete floor) remote area, and allowed 2 stand a week after filling, and has a ventilated glass cover to stop air currents from affecting the surface--etc etc....wld capably demo th effect
The circular motion of the water is due to momentum and not coriolis force. Watch 0:50. If the guy poured the water on the other side of the hole, it would spin the other way. simple. He is just starting a circular motion while pouring the water. A body needs to be moving horizontally over the earth's surface to experience coriolis force. Here, the water is just moving vertically downwards which cannot develop any coriolis force.
this theory was debunked a long time ago, it has nothing to do with Coriolis. The perturbations and turbulences within the water creating residual angular momentum, and the minor imperfections in the container are what determines the direction of drainage.
was that ewan mcgregor
my physics prof says this is BS, any little movement will have a WAY effect than the earths force.
You misunderstood something, we are not talking about a controlable lab experiment.. we are talking about your home's latrine, the cup of water with a toothpick on it's surface... there's too many variables that overcome the validity of the coriolis effect in this circunstaces... the inclination of the body studied hitted by the fluid, the friction, the composition, the (probably) random molecular collisions, the interaction with the atmosphere and so on...
I agree that whats shown on this vid is false, but you are wrong on a couple of things. Well constructed, well controlled, time consuming, tub drain experiments have very capably demonstrated the effect, as have pendulums (which is a quite small scale experiment). Also if you could get everyone to observe accurately, large scale observations of drains (not toilets) actually WOULD show a small percentage more CCW rotation in the north.
Sorry, meant "errors WOULD be scewed a little.....", instead of "would not".......
There should be a big black line here somewhere. - Hammond
OMG!!! Ewan Mcgregor!! :D
No fair, he used his jedi powers to turn the water
Coriolis effect force only appear at high scale. Not in the bath or similar...
If this is fake, then I'm tricked as fuck!
I guess if they put it at equator it shouldn't spin at all.
Also the equator isn't quite as fixed as people think it is. The actual magnetic points are in flux.
What the fuck the equator has nothing to do with magnetism.
You are not quite visualizing the "website drain experiment"(lol). Think many millions of entries of data. This means that the random influences cancel each other out, and you r left with what????? This also assumes accurrate observation/reporting--because like he said,errors in this probably would not be scewed a little toward the direction most people know it tends to go. Of course we also assume way higher latitudes than this vid shows.
what happens if you stand in the middle?
nothing
please!
why does ewan mcgregor care about this stuff?
coriolis effect only works over a great distance and has to do with the different speeds of earths rotation about its axis. False
But isn't the world tilted in 23.5 degrees. Prove to us how it will still be equal.
the corriolis effect has nothing to do with the magnetic pole. It has to do with the geographical poles.
37rainman it doesn’t have anything to do with poles whatsoever 😂😂 there’s 2 conditions required for a Coriolis, can you name them please?? 🤔
Obi Wan ?
Is that you ? ? ?
This isn’t the Coriolis effect! 😂😂 this is just a parlour trick idiots fall for who believe they know what the Coriolis effect is! This video has absolutely nothing to do with the Coriolis effect 👍
I'm glad you say this as I was in cape town last week and tried it in the sink before returning back to london. The water went clockwise. Exactly the same when I tried in london... I'm seriously baffled and sense it's all BS! I've no idea what the truth is now!!
@MrNaivaz
It's not fake, this happens because rotation of our planet.
lol. anti-clockwise~
Big moneymaker.
FAKE
FAKE BOI
Maybe kenya is a quite backward country.........