We broke the WORLD RECORD for the Largest Soda Mentos Geyser, and the process was fascinating! I learned an incredible amount of science, from carbonating liquids to prototyping and 3D printing. I think this record was more about seeing if we could do something and keeping on the problem-solving track until it was completed. I am very proud of this video and the problem solving the whole team continued to muscle through. The record may be silly, but the focus, dedication and consistent mental attack to overcome obstacles is really something incredible... for this I am very proud and grateful for this experience!


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We could not have done this without the help of the LACI (Los Angeles Clean Tech Incubator). They are currently running an IndieGoGo to sell memberships. If you are in the LA area or would like to sponsor a membership please go to this link:
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Mentos on the surface look very smooth however at microscopic level they tons of mini little crevasses (like peaks and valleys) and its in these little areas that are know as nucleation sites. They trap little tiny pockets of air, and when the dissolved CO2 hits these nucleation sites it forms a bubble. The bubbles grow with additional C02 dissolving into them until they are buoyant enough to rise to the top of the container. If we add enough Mentos, we will get A LOT of CO2 bubbles forming, so many in fact that it will turn to what we call a foam fountain. AND if we have a system that creates pressure of this foam we can direct it and send it easily over 5 meters or roughly 16 feet. And that’s exactly what we did!

Here are the specs for how we broke the record.

- About 20 L of soda (Diet Coke… research on the internet suggests this is the best due to high C02 levels and the aspartame working as a surfactant, weakening surface tension and allowing the fizz to break free faster)
- 9 packs of Mentos
- Carbonating the soda with cold soda to get as much CO2 dissolved as possible
- Used a poly carbonate 5 gallon water jug
- Created a Mentos dropping devise with a 3D printer to easily drop Mentos, redirect the soda stream, and maximize pressure.


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Production Team:
Producer: Nick Uhas
Editor/Cam 2: Griffin Louis
DP: Sam Mosco

Sources:
http://askville.amazon.com/temperature-water-hold-carbon-dioxide/AnswerViewer.do?requestId=1674443
http://www.livescience.com/32461-why-do-soft-drinks-go-flat.html
http://www.wiley.com/college/chem/brady184764/resources/ch10/think_ans10.12.html
http://soda-dispensers.com/tdever/p5.html
http://hypertextbook.com/facts/2000/SeemaMeraj.shtml
http://www.truetex.com/carbonation.htm
http://www.eepybird.com/featured-video/coke-and-mentos-featured-video/science-of-coke-mentos/