The Coriolis effect in action 

Thank you Helen! You spun that paper beautifully!

Thank you sooo much, that demonstration with the paper made it so clear. I didn't think of doing that. It is much appreciated!

You forgot to say thanks to Hellen👀

Just used this demo in my first year university enviro sci lab - thank you for the idea!

cheers fella , top bloke , also thanks Hellen

Very simple and precise..

Huge fan from Nepal

The Coriolis effect requires 2 reference frames (inertial and non-inertial spinning reference frame). It doesn't involve imaginary hemispheres or hurricanes actually spinning. It's an apparent (not actual) deflection observed by the person in the non-inertial spinning reference frame viewing an object in the inertial reference frame. We never observe the Coriolis Effect while standing on the ground looking at objects in the air because earth is stationary.

Thank you Helen

Why would the wind goes straight(along the ruler), won't it rotate with earth following conservation of angular momentum?

Thank you 👍🏻

There is one problem I am still feel very confused. I clearly know that, in north hemisphere, the wind will be bent to the right eventually, and the wind toward equator will generally be northeaster wind (There is also an gif in wiki page that can clearly show this). The thing that I am struggling to figure out is the poleward wind. Why the poleward wind is not southeaster wind but southwester wind? Even In the drawing on paper exercise in this video, it's clear that the poleward wind should be initially southeaster after leaving the equator (the edge of the circle)

Highly satisfied with you 👌👌👌👌

Helen distracted me, didn’t get any of that.

Your arrow is curving to the right but the northern air currents are to the left (counter clockwise... like you say later), so it makes little sense to demonstrate it this way. If you had a tub of water with a line of food colouring dots and then ran a knife through the water cutting the line of dots in two, then the resulting eddies in the water would represent the air/water currents and the knife represents the relatively faster air/water movement at the equator.

Thanks a lot.

thanks

There is something about the Coriolis Force that bothers me, and I can't quite put my finger on it. The Earth and its atmosphere tend to rotate together...the earth being a solid ball and the atmosphere being a thin, sticky Jello that clings to the solid ball due to gravity. The solid ball that is the earth, does NOT rotate within an atmosphere that is stationary relative to the fixed starfield which surrounds our planet. If this were the case, winds at the earth's surface would be way too strong to support life. However, in our current Coriolis model, when a convection current moves a small parcel of air within that Jello in a northerly or southerly direction, it appears that we detach that parcel from the rest of the atmosphere and trace out its path relative to the fixed star field around earth; but then wouldn't that mean that the people on the earth's surface who are standing at the parcel's "target" latitude feel a wind that has a magnitude equivalent to VTarget - VSource? It seems that a slightly more accurate model of the air parcel's motion would involve treating the air parcel like a gum drop stuck on a radial arm extending from the center of the earth to the earth's surface. This radial arm and the gum drop positioned at the tip of the radial arm at the earth's surface would (in static conditions) move with the rotation of the earth but then experience a torque if there was any change to the angular momentum of the gum drop brought about by north to south movement. Although there appear to be some correct ideas behind the current model of the Coriolis Force, I cannot help but feel that the current model was conceived in a time when many people were still fighting off the idea that the earth was flat and this has left the current model with some gaps that need to be addressed.

I don't get one thing: Why the opposite directions on north and south when the Earth rotates the same way on both sides?

That is not a demonstration of Coriolis.

But air normally flows from high pressure pole to low pressure equator.. then ur demonstration need 2nd explanation.. please help!!

My teacher showed us this video in class

Hello. What is the song in the background called?

What happens when a craft returns to earth from space? What does that trajectory look like?

Good explanation. Thx. What is the sound track to this vid?

Sorry to tell you that you are explaining this wrong. The reason the wind moves east is do to its velocity and momentum. It is nothing to do with "point of view" or "appearance". If this was the case, as shown in your experiment, the wind would pull to the left at first. Pay close attention to your experiment and you will see how the line goes left in the first half (equator to north pole). It has to do with actual momentum physics. As the air moves north, because it is not attached to the earth, it doesn't lose its velocity/momentum as the earth below it does and so it actually "speeds past it" the more north it goes as the earth below it is actually getting slower and slower…but not the wind…until it cools down, sinks, and starts flowing south again.

Many flat earthers were injured in the making of this video.

The most important statement made in this video is "Coriolis is not a real force"

Nobody else seems to have caught it, but those lines are not the same. You swapped the papers lol.

You would think earth's oceans would have the same type of affect especially when earth is moving at 1000 mph at the equator.

This is almost completely useless and does zero to explain Coriolis effect. You would be less informed watching it than if you'd never watched it.

Porque vai para Leste quando desce para o centro do disco

Does air must blow straight

Why are planes not affected by coriolis?

What makes the water stick to earth

Must be hard as hell to land an airPLANE!

Who’s her for class

In this demonstration the ruler represents the air or atmosphere and assumes the atmosphere does not spin with the earth. If this demonstration was a true representation of what is happening, we would have a constant wind at the same speed the earth is spinning. This demonstration is ridiculous.

This demostration is actually wrong, with the ruler and the pencil you're actually drawing a curve line to the east going north ... as yo're drawing for a whole 360° rotation of the paper disk the line eventually seems to go westward, but it's not.

The Coriolis effect.....how do drones/helicopters hover?

Even the Met Office succumb to the moronic music track.

Half of these comments are normal, the other half is people trying to sound smart and argue against this claim when in reality their argument can't even be started because the grammar and spelling are so bad that it's all unreadable.

Who else is doing this for school? ⬇️ ⬇️ ⬇️ ⬇️ ⬇️ This is how many people are watching this for geography school work

Why in south anticlock

Coriolis only applies to things that are turning. It cannot apply to earth. If it was why hurricanes and cyclones spin how they do, anticyclones would not exist....but they do. The direction of storms is caused by the movent of the sun over the earth and convection currents, not earth turning.

Rather weak! Best of luck!

Useless!