A YouTube channel called "kreosan" (made by Russian-speaking people who I believe live in Ukraine) posted a video showing rockets made from bottles of Coca-Cola.
Here's what I've figured out from the video.
First step: pour out some Coca-Cola to make room in the bottle to add gas.
Second step: add butane (looks like a canister for refueling butane lighters)
Third step: this is unclear. He adds a gas from a large container that appears to say "GAS-1". The YouTube description says "Coca Cola + propane = turbo ROCKET" so I guess it's propane.
Unknown: Does the rocket require both butane and propane? I think the second step was just to show that you don't get very much gas out of a little butane canister, and all you really need is the propane from the last step.
- Final step: invert the bottle, and some reaction pushes Coca-Cola out the mouth of the bottle with enough force that the whole bottle flies quickly as a rocket.
What is going on here? How does inverting the bottle trigger the reaction? Is this like the "Mentos and Diet Coke" thing where the trick was to get the carbon dioxide dissolved in the drink to come out quickly?
My understanding is that the surface of Mentos candy provides a bunch of nucleation sites for bubbles, causing a lot of carbon dioxide to come out of solution quickly.
So, does the "kreosan" rocket fly on just carbon dioxide or is there some other reaction going on here?
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