You've no doubt seen the immensely popular YouTube video of choreographed 2-liter Diet Coke bottles erupting when Mentos are dropped in. It reminds all of us of our first baking soda volcano science project, only on steroids.
Well, now the National Science Foundation has its own video that explains why it works and what happens if you use different flavors of Mentos.
Hint, Mentos porosity is a key factor. And don't you love the helmet?