A comparison of times would also be nice. And dimensionless numbers, like the number of stars in the Galaxy, the number of cells in the human body, and the largest known prime. --AxelBoldt
And the population of various countries and cities. --LA2
I think the example column should be placed immediately after the column of dimensions that it's an example of. As it is now, it's unclear what dimension things in the example column are an example of; for example, is the Sun an example of something that is 109m in diameter, or is it an example of something with an area of 1018m2? This gets even more confusing when mass is considered as well. I'll move it over and see if it looks okay.
There, fixed. If everybody hates this, revert it; otherwise I'm going to add empty example columns for the other measurements as well for future expansion. :)