He is not just another pretty face it seems
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If you want a nice little "experiment" try a caustic soda solution on some alluminium. Apparently the only chemical reaction that "speeds up"..
The bubbles are hydrogen and the reaction is such that one can easily fill a ballon with hydrogen from a beer bottle containing the reaction. Tie off the ballon when filled and trim off the excess "rubber" and you have a ballon that goes up into the wide blue (er grey at the moment folks) above. Now for a little more fun tie a strip of paper to the ballon light it and let it go.. your own private super nova
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alex