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Lorin Thwaits A geek says what?

Two decades ago as a young teenager I was intrigued when I dropped a single M&M into a 2 liter of Sprite and saw it quickly overflow.  After some brief thought, I figured the CO2 previously dissolved into the soda was being rapidly displaced by the sugar on the coating of the M&M, since sugar is much preferred to go into solution in water compared with CO2.

These guys at eepybird.com are taking that same soda experiment to a new level, creating a small-scale Bellagio fountain.  And they seem to think the cause is something called nucleation sites, or a propensity for bubbles to form on the rough surface of the candy itself.  I still think the cause is sugar dissolving into the soda and displacing the CO2, especially since the surface of an M&M is pretty smooth, and the M&M has about the same effect as Mentos.  Probably the more intense spray of a diet soda is because much less other stuff is dissolved into a diet drink than a sugared one, leaving room for more CO2.  (Takes much less mass of artificial sweetener to equal the taste of sugar.)  What do you guys think?

Posted on Monday, June 12, 2006 6:43 PM | Back to top


Comments on this post: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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This is weird
Left by ryan on Feb 18, 2008 6:57 AM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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good information. thank you.
Left by tdc on Jul 21, 2009 6:23 AM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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you can see how to do those same things in Visual Studio!re
Left by DDos Protection on Nov 06, 2009 11:43 PM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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that is my project
Left by leo on Jan 16, 2010 9:55 AM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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Could you pleasee provide more information on this subject?? Also your web site is totally awesome. Take care!!!!
Left by seek and find games on Mar 06, 2010 7:12 PM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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Mass com is the need for act.
Left by HID kit on May 23, 2010 2:16 AM

# re: Nucleation sites or simple displacement when sugar dissolves -- which really causes a soda geyser?
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Now see I never knew that you could do that with an m&m as well!
Left by phone lookup on Jul 29, 2010 4:14 PM

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