Enlarge / A well-coordinated Mentos-and-Diet-Coke explosion filmed in slow motion for The Slow Down Show in 2013. (credit: YouTube/The Slow Down Show) Back in 2006, Fritz Grobe and Stephen Voltz—the self described mad scientists behind Eepybird—ignited an Internet sensation with their viral video of an elaborate version of the Diet Coke and Mentos fountain experiment, recreating the choreography of the Bellagio's world-famous fountain display in Las Vegas.