Diet Coke & Mentos with Geyser Tube

This has been overdone on YouTube and the only reason that I am posting it is because this is a demonstration that I do for my students (and did before it became an Internet fad). I filmed it facing the building hoping to use basic trig to calculate the height while using the building to get an exact height. The demo also uses Steve Spangler's Geyser Tube.

Category:

Howto & Style

Tags:

• diet
• coke
• mentos
• Steve
• Spangler
• geyser
• tube
• fountain
• nucleation
• carbonation
• CO2
• Sully
• Russia
• chemistry
• demonstration

[mecidlo]

Old trick! But nice!

I know next trick with coke, get normal coke to water, and it will fall down. And get to the water Light Coke, and it will be swimming! P.S: sorry for my english!

[mrericsully]

I'm not sure I follow, but my guess is that you are referring to the idea that regular pops/sodas/colas sink in water and diet ones float (although they could be layered ina density column this effect is simplest to see when sealed cans are put in water).

[JustinSMonnin]

so I never saw this one in real life, but nonetheless, I'm impressed