Fun experiment and a good way to make money on tourists. That's all fine with me. However using this video in classes to teach children about this is just plain stupid (talking at you carolann551) This is like watching the media copy/paste a story from the internet without checking any sources.
You can't see the blue container is a square, not a circle?
This means the way you move the blue container in placing it on the green pale is the direction the water will take (this is not because of the coriolis effect). At 3:43 he turns his body clockwise to face his audience, holding the bowl, watch carefully. It is that fakery that is making the water flow clockwise.
Chris says that in the northern hemisphere, it will spin clockwise (4:20), and in the southern hemisphere, it will spin counter-clockwise (6:00), and he clearly demonstrates what he says.
The problem is, it's actually the other way around. Counter-clockwise in the North, and clockwise in the South.
Look up "Cyclone" or "Coriolis effect" on Wikipedia. A quick Google search will reveal other sources as well.
After the comments, I have read Wikipedia and checked this and some other clips from the equator, and cannot see if they are doing any illusionistics. Actually I saw it on site, held the bucket in my hand and saw a clear and firm movement starting after a short while. Even if I am suspicious about the sensitivity of this effect, I am convinced as I experienced it. /janne
Wonderful video, but I hate to think it will be used in science classes. Chris seems to create initial swirl by pouring the water slightly to one side of center, which then determines the direction at drain. (See Wikipedia entry on Coriolis force.)
There are no hurricanes within about 5 degrees latitude of the equator because there is not enough Coriolis force to start them spinning. Coriolis is too weak to spin a hurricane 400 km north of the equator; this bowl is only 12 m to the north.
Thank you - yes, I was amazed that it was so sensitive, needed to walk only 12 meters to get a solid effect. Pls use it, and spread some enthusiasm about science... /janne
This is very cool. I am a Special Educator in Cardiff, California and my daughter teachers a 4/5 class in Moreno Valley, CA also. We will use this on our Science class!
Lisa Simpson was right! o.0
motanium 1 year ago
Thanks for posting.
The earth weighs tons. The surprise would be if there's NOT an effect like this.
Predictable the people who all copy each other and say it can't happen.
mmullins207 1 year ago
Fun experiment and a good way to make money on tourists. That's all fine with me. However using this video in classes to teach children about this is just plain stupid (talking at you carolann551) This is like watching the media copy/paste a story from the internet without checking any sources.
Ziekheid 1 year ago
and the water magically doesn't spiral at 6:28 look
ESponge2000 1 year ago
Also look at 6:02 what he does with the second toothpick to reinforce the rotation of the first toothpick
ESponge2000 1 year ago
notice on the equator also, he does not put the blue container on the pale because it would be hard to demonstrate spiral otherwise
ESponge2000 1 year ago
You can't see the blue container is a square, not a circle?
This means the way you move the blue container in placing it on the green pale is the direction the water will take (this is not because of the coriolis effect). At 3:43 he turns his body clockwise to face his audience, holding the bowl, watch carefully. It is that fakery that is making the water flow clockwise.
Then look at 5:47 he pushes container
Coriolis effect is too small be shown with this small container.
2)
ESponge2000 1 year ago
Chris says that in the northern hemisphere, it will spin clockwise (4:20), and in the southern hemisphere, it will spin counter-clockwise (6:00), and he clearly demonstrates what he says.
The problem is, it's actually the other way around. Counter-clockwise in the North, and clockwise in the South.
Look up "Cyclone" or "Coriolis effect" on Wikipedia. A quick Google search will reveal other sources as well.
Well...?
eater44 2 years ago
After the comments, I have read Wikipedia and checked this and some other clips from the equator, and cannot see if they are doing any illusionistics. Actually I saw it on site, held the bucket in my hand and saw a clear and firm movement starting after a short while. Even if I am suspicious about the sensitivity of this effect, I am convinced as I experienced it. /janne
JanneOLundberg 2 years ago
How can anyone contradict this?
Can anybody make it more real and obvious than this Chris just made it ?
SebbeG 2 years ago
Wonderful video, but I hate to think it will be used in science classes. Chris seems to create initial swirl by pouring the water slightly to one side of center, which then determines the direction at drain. (See Wikipedia entry on Coriolis force.)
There are no hurricanes within about 5 degrees latitude of the equator because there is not enough Coriolis force to start them spinning. Coriolis is too weak to spin a hurricane 400 km north of the equator; this bowl is only 12 m to the north.
ironDRD 2 years ago
Thank you - yes, I was amazed that it was so sensitive, needed to walk only 12 meters to get a solid effect. Pls use it, and spread some enthusiasm about science... /janne
JanneOLundberg 2 years ago
Janne,
This is very cool. I am a Special Educator in Cardiff, California and my daughter teachers a 4/5 class in Moreno Valley, CA also. We will use this on our Science class!
Carol.
carolann551 2 years ago
More - I just uploaded two more clips, where I filmed the effect Exactly On the Equator. Also good to show, it actually works.. /janne
JanneOLundberg 2 years ago