In the Giant Insects thread BrianW mentioned shrinking humans and this made me remember something my math teacher talked about. He raised the question that since you couldn't take away any of the atoms that make up the person all you could do is compact the atoms (I'm guessing the space between the electrons and the nucleus). So, would the person weigh the same? I figure some interesting questions revolve around this subject. Hopefully, some of you out there can share your insight.