How big is everything? How small? This nifty scaling demonstration will amaze you.

That Pluto really isn't that big is it?

This seems like a simple little tool. Slide left and check out how small some things are. Except they just keep getting smaller and smaller. And smaller. And...

Slide right, and you get big, bigger, and so on in scales you will have trouble comprehending.

And that's fine, because the sorts of scales that exist in our universe are quite simply beyond our ability to comprehend. So we need to just acknowledge it, marvel at it, and then leave it to the scientists!

Unfortunately, the tool is in Flash, so iThing users will need to find a desktop PC.

Hat tip to my sister Michelle who passed on the link.