This is a new variation on my "Fire Hand" demonstration. I never did like the size of the methane bubbles that were produced, so I got an idea from a Mythbusters' segment on methane bubbles. They used a tube with many small holes to create the small methane bubbles. I decided to to do a variation of it using aquarium tubing. The result is a bigger handful of methane bubbles which means a bigger flame!
References allow you to track sources for this article, as well as articles that were written in response to this article.