4. Open the pack of Mentos and place all of them in the tube. 1. Slowly and carefully open a new bottle of Diet Coke. 2. Place it on a flat area outside where it is OK to get wet with soda. 3. Put the ...

The cola and Mentos experiment, which later became an internet sensation, was first publicly demonstrated by Lee Marek and 'Marek's Kid Scientists' on the Late Show with David Letterman in 1999.

Surely you're hip to the Diet Coke and Mentos phenomenon of a few years ago. When an enterprising duo realized that the hard-coated candies interacted with the soda in an explosive way ...