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Toilet swirl in opposite hemispheres - Veriatasium and Destin
by aaaaaa

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Youtube Thumbnail The Truth About Toilet Swirl - Southern Hemisphere
The Truth About Toilet Swirl - Southern Hemisphere
by Veritasium
8:3 - 2,524,877 views

SYNCHRONIZE WITH DESTIN’S VIDEO: http://bit.ly/NorthernSwirl
Both videos on one page (for desktop): http://bit.ly/ToiletSwirl
Subscribe to Smarter Every Day: http://bit.ly/SubscribeSED
Click to tweet: http://bit.ly/ToiletSwirlTWT

Some notes:
We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! A right circular prismatic kiddie pool is only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do it for yourself.

Veritasium on Instagram: http://instagram.com/veritasium
Patreon Support Link: http://www.patreon.com/veritasium
Twitter: http://twitter.com/veritasium
http://www.facebook.com/veritasium

Smarter Every Day Instagram: http://instagram.com/smartereveryday
Patreon Support Link: http://www.patreon.com/smartereveryday
Twitter: http://twitter.com/smartereveryday
www.facebook.com/SmarterEveryDay

Gordon McGladdery did all of the sound design for the video. We used two songs from other artists (licensed of course). Derek split the first one up so it fades from video to video, and Gordon split the instruments up on the second one. There are violins on one video and percussion on the other for example. It's really neat.

The neat earth animation at the beginning and the synchronizing timer was made by http://eisenfeuer.com/. He also made still images of the earth from the top and the bottom.

Thanks to Vanessa for filming in Sydney: http://youtube.com/braincraftvideo

MORE INFO:

There was a study performed at MIT years ago (http://web.mit.edu/hml/ncfmf/09VOR.pdf) that explained the physics involved. We repeated some of these demonstrations, but on opposite sides of the globe…and in a way that can be easily understood.
This site is a great resource on the Coriolis effect and ways people have gotten it wrong:
http://www.ems.psu.edu/~fraser/Bad/Ba...
Youtube Thumbnail The Truth About Toilet Swirl - Northern Hemisphere
The Truth About Toilet Swirl - Northern Hemisphere
by SmarterEveryDay
8:2 - 2,748,721 views

SYNCHRONIZE WITH DEREK'S VIDEO: http://bit.ly/SouthernSwirl
Both videos on one page (for desktop): http://bit.ly/ToiletSwirl
Subscribe to Veritasium: http://bit.ly/Sub2Veritasium
TWEET THIS! http://bit.ly/ToiletSwirlTWT
↓↓↓↓↓↓↓More info Below ↓↓↓↓↓↓↓


Some notes about this.
We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! The good news is that right circularly prismatic kiddie pools are only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do this on your own, so before you criticize how we've done it, I'd strongly encourage you to do it for yourself.

Smarter Every Day Instagram: http://instagram.com/smartereveryday
Patreon Support Link: http://www.patreon.com/smartereveryday
Twitter: http://twitter.com/smartereveryday
www.facebook.com/SmarterEveryDay

Veritasium on Instagram: http://instagram.com/veritasium
Patreon Support Link: http://www.patreon.com/veritasium
Twitter: http://twitter.com/veritasium
http://www.facebook.com/veritasium

Gordon McGladdery did all of the sound design for the video. We used two songs from other artists (licensed of course). Derek split the first one up so it fades from video to video, and Gordon split the instruments up on the second one. There are violins on one video and percussion on the other for example. It's really neat.

The neat earth animation at the beginning and the synchronizing timer was made by http://eisenfeuer.com/. He also made still images of the earth from the top and the bottom.

Thanks to Jacob Vehrs for helping make the plywood pool platform.

GET SMARTER SECTION:

There was a study performed at MIT years ago (http://web.mit.edu/hml/ncfmf/09VOR.pdf) that explained the physics involved. We repeated some of these demonstrations, but on opposite sides of the globe…and in a way that can be easily understood.
This site is a great resource on the Coriolis effect and ways people have gotten it wrong:
http://www.ems.psu.edu/~fraser/Bad/BadCoriolis.html

The Coriolis Effect influences the flight of a bullet.
http://www-das.uwyo.edu/~geerts/cwx/notes/chap11/artillery.html

We would love for someone to replicate this demonstration. Please tweet your results to us @SmarterEveryDay and @Veritasium.
Here's the link to puchase the exact same pool:
http://www.amazon.com/Intex-56451NP-Inflatable-Snapset-Pool/dp/B000OV0X34/ref=sr_1_1?s=toys-and-games&ie=UTF8&qid=1433743067&sr=1-1&keywords=5%27+kiddie+pool

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Tweet ideas to me @SmarterEveryDay

The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for the kids' education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO!

If you REALLY liked it, feel free to pitch a few dollars towards their college fund by clicking here:
http://bit.ly/KidsCollege

Warm Regards,

Destin
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