In our continuing quest to find interesting blogs and bloggers, we ran into Leah Simmers Photography Blog, where she was capturing her experience with Mentos and Diet Coke. Thanks to Leah for letting us share some her unique geyser pictures here. Check out Leah’s full blog post here. And yes, that is the Geyser Tube she’s using to launch that screaming geyser.

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This story came across my Google alerts today from the crack team at ABC News… “Science of Mentos-Diet Coke Explosions Explained.” My fingers couldn’t click on the link fast enough. New research finally explains this amazing phenomenon? Here’s the opening sentence of the story…

The startling reaction between Diet Coke and Mentos sweets, made famous in thousands of YouTube videos, finally has a scientific explanation. A study in the US has identified the prime factors that drive the fizzy plumes from Coke bottles: the roughness of the sweet and how fast it plummets to the bottle’s base.

What… this is the big discovery? The Mentos chewy mints have a rough surface and they’re heavy? Well, they’re absolutely correct and they confirmed the original Mentos Eruption explanation published back in 2005. Tonya Coffey, a physicist at Appalachian State University in Boone, North Carolina said, “This was a good project for my students to study because there was still some mystery to it.” Hats off to Coffey and her students for publishing her findings and bringing peer review to the Mentos Geyser experiment.

However, it was nice to have someone else confirm our findings that either fruit or mint Mentos work equally well. “The results showed that Diet Coke created the most spectacular explosions with either fruit or mint Mentos, the fountains travelling a horizontal distance of up to 7 metres.”

It was probably most fun to read the comments on the ABC News blog. What questions or “mysteries” about the Mentos reaction would you like to ask?

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Robert Woodhead is always looking for a new challenge with his Casio EX-F1 camera. I found Robert’s first Mentos Geyser reaction on Gizmodo using just a roll of Mentos and a bottle Diet Coke. Watching the reaction at 1200 fps is truly amazing. Robert found a willing subject (the kid running from the exploding bottle) and sent us this video. Huge thanks!

If you haven’t seen the Mentos Slow Motion Video from the people at Perfetti Van Melle, watch it! At 2,000 frames per second, you can actually see the carbon dioxide bubbles forming on the nucleation sites.

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Tune into Food Network’s Unwrapped to get a peek inside the Spangler Science labs as Steve shares the science behind the Mentos Geyser all of that exploding soda. Back in December, I mentioned that a crew from Unwrapped on the Food Network wanted to get the real scoop on the popular Mentos and soda reaction. The crew spent an entire day grabbing the reaction from every angle and trying to understand how all of those tiny bubbles produce such a huge fountain of soda. The episode is scheduled to air on September 24, 2007. Consult your local listing for time and channel.

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Dropping a roll of Mentos into a bottle of soda used to be something that kids did for fun. Now adults are getting into the act. I opened my e-mail and received these cool pictures from the organizers of the event that took place on July 10th in Flower Mound, TX. Representatives from the Guinness World Records certified the record-setting effort, which went off at 6:30 pm inside the Circle R Ranch Rodeo Arena where 850 independent sales representatives from Books Are Fun, a Reader’s Digest Company, simultaneously dropped Mentos into 850 two-liter bottles of soda using the Geyser Tube Toy. The previous Mentos geyser record was set on May 24, 2007 in Cincinnati, Ohio when 504 Mentos-and-Coke geysers were set off.

Watch the Video: The Largest Number of Simultaneous Mentos GeysersÂ

Please remember that you’re looking at 850 screaming adults… not kids… running away. Yes, learning is fun for people of all ages.

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