Make 756
Robert shows you an interesting science experiment using a water balloon and a candle –

This is a variation of an old, Victorian parlor trick, but even after over 100 years, it is still just as amazing. In Victorian times, the experiment was done by folding a calling card (much like a modern business card) into a square container. When the paper container was filled with water, it could be held over a candle to boil the water without the paper catching fire.

Science Experiment #3 – [via] Link.