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The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 1:55 PM

You know the multicolored swirls on a soap bubble? This article discusses intriguing research that could lead to advances engineering stable foams. The researchers actually stopped the swirls, which are caused by the movement of surfactants from areas of lower to higher surface tension. The short video of their arrested bubbles has a gorgeous kaleidoscope-like appearance.

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#1

Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 2:02 PM

But won't that keep the bubbles from popping?

Sorry kid...you'll never 'im out of there now....

oooooo....aaahhhh

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#2

Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 3:18 PM

the science of bubbles (making bigger bubbles, having them last longer and the like) is pretty interesting.

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#3
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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 3:29 PM

Indeed. I've found it a great cure for insomnia.

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#4

Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 3:41 PM

So I wonder what would happen to my electrolysis experiment if the soap was introduced, mixed in, then turn on the current?

Could the oxygen bubbles on the anode end be kept separate from the hydrogen bubbles on the cathode end with a cell separator? Just curious, and I suppose the mixed up bubbles would make an interesting bang, not a whimper.

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#5

Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/14/2016 5:06 PM

Here is a classic, written a long time ago, that is a treasure trove of interesting soap bubble phenomena. I highly recommend it.

https://www.amazon.com/Soap-Bubbles-Their-Colors-Forces/dp/0486205428

pdf file:

http://www.arvindguptatoys.com/arvindgupta/vp-soap-bubbles.pdf

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#8
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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 3:37 PM

Thanks for the suggestion! I ordered this from Amazon today and was surprised at how many books have been written about bubbles. And I thought soap bubbles were just for children ...

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#6

Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 2:36 PM

Wow, fairly awesome....

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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 2:59 PM

what is really cool is when you use hydrogen peroxide in phthalic ester and phenyl oxalate ester (Glow Sticks) in a bubble solutions.

I hope I didn't say that out loud.... but if I did

Not recommended, but cool.

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#9
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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 4:26 PM

Am I the only one the sees the monitor lizard bubble head here?

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#10
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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 4:29 PM

Not UNTIL YOU MENTIONED IT, QUICK! EVERYONE TO YOUR AUTHORIZED ASSIGNED SAFE SPACE

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Re: The Marangoni Effect, Tiny Bubbles, and Fluid Dynamics

09/15/2016 6:12 PM

CR$ Admin: Politics/Religion: This post was deleted because it was overly religious or political. While each user is entitled to his or her own opinion on these topics, CR4 is not the place for discussion about them. Please review Section 14 of the CR4 Site FAQ and the CR4 Rules of Conduct.

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