I need ideas for a physics project. The teacher said that we could do anything, so long as we can get hold of the equipment for it. I basically need to answer a question or have some kind of title which I could investigate, for example, drag forces on different shape objects, variation of surface tension with temperature. But I want to do something interesting so that I don't get bored of it half way. It's a project that will take about 3 months to complete, inclulding the experiments and write-up. Preferably to an advanced level, but not too advanced.