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Alexandra Bruce
July 14, 2013

Destin, the affable host of the YouTube channel, SmarterEveryDay explores fluid dynamics and the “Liquid Rope Coil Effect” using mathematical equations and a high speed video camera.

Different coiling effects can be observed based in the density of the fluid and the distance of the drop. Some effects remain as-yet unexplained to science. Watch!


June 3, 2012

Please share this video by clicking this:
This is called the “Liquid Rope Coil Effect”. Ropes behave the same way when dropped from high up. See the raw high speed footage here:

The high speed camera used was a Phantom V10. Rent one yourself by clicking here:

Artist Info:
Gordon McGladdery wrote & Recorded the song “Long Time, No See”
Download it here:

Sarah Xu, a student at the Vancouver Film School made the awesome introduction Drawing. Look at the full non-8-second version here:
The graphs are scientifically accurate!

My pancreas almost shut down after the test tube scene. I kept getting corn syrup/molasses/honey on my hands and licked it off. Seriously…. I started feeling weird.

Why did I make this? Because you asked!
I made this video at the request of a Smarter Every Day Subscriber:

Tweet me @SmarterYouTube and ask me to do something.

Also, I contacted a Physicist named Sean in the UAE who made this video:


Kinematic Viscosity is simply the Dynamic Viscosity divided by the Density

Read an article by the Royal Society on the Math involved. Hope you like math:

Here’s a great paper that describes the 4 flow regimes very well.


The high speed was shot with a Phantom V10:

Instead of saving for my kids’ college, I make videos using the money I would have saved.

The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for their 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:

Warm Regards,


Alexandra Bruce

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Alexandra Bruce

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