The short film (Or long one if you can get the Imax version).
There are something like 40 orders of magnitude difference between the biggest and smallest objects we can detect, we lie at about the 16th order of magnitude, so on average, we are small given that we lie nearer the smaller end of the spectrum than the bigger. However, there are many (many many) more smaller things than us, than bigger things, so in effect we are big.
Orders of magnitude being x 10. So the biggest object (the known universe) is 4 x 1040 bigger than the smallest, known object.
Powers of ten, imax clip
Edit: Balls, still can't edit subject line! Should read Watch Powers of 10
(, Tue 24 Feb 2009, 15:46, Reply)