hey guys, As part of my high-school diploma i have to write a 4000-word essay about practically any topic, but i chose to do one in physics. ;) I've already done a bit of research trying to look at what topics might be interesting and possible to do EXPERIMENTS for. I was looking at doing something about the interference properties of light and doing the double-slit experiment but i thought that would be too simple and i wouldnt be able to fill 4000 words. I've looked at my textbooks and quite a bit on the internet to try and determine a topic, but haven't had much luck yet. I was hoping you guys could help me come up with an interesting topic i could research and possibly do an experiment for. Thanks a lot guys!!!