Earlier, I had posted that I thought that I had made liquid oxygen. People seemed skeptical that it would work, but I did an experiment to prove the concept. On a ring stand, I had some burning paper towel. I put some liquid nitrogen in a pie tin and allowed atmosphere to condense on the outside. Allowing this cold liquid to fall on the burning paper produced small spurts of burning paper. It was a bit difficult to keep the cold nitrogen vapors from blowing out the fire, but if the pie tin was held high enough, this was not an issue. I know this isn't any ground-breaking science, but it sure was fun!! Should I write a paper?