Benian motion
I just got back in from a walk with my dog Ben and decided it was time he had a shower. He doesn't like having a shower but now accepts it. When he has a shower I always take my socks off, this is so they don't get wet when I splash water on the bathroom floor, he now associated socks off with having a shower so every time I take off my socks he runs downstairs and hides. Whilst showering Ben I noticed this interesting phenomena; when water droplets dropped of Ben's coat onto the bath, instead of dispersing the droplets stayed whole and skidded about. The effect was made clearer because the droplets reflected light back giving the appearance of silver beads dancing about. Could be an interesting EE topic.