The Truth About Toilet Swirl - Northern Hemisphere

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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.
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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 /. 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.
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There was a study performed at MIT years ago () 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:
The Coriolis Effect influences the flight of a bullet.
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:
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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!
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Warm Regards,
Destin