Apologies in advance to iOS users for pointing to a Flash-only resource, but Cary and Michael Huang’s “The Scale of the Universe” interactive page on NASA’s Astronomy Picture of the Day site is a fascinating update to the classic “Powers of Ten” video created in the 1960s by designers Charles and Ray Eames. We were particularly amused to see Boeing’s Everett, Washington aircraft plant (on the scale of Vatican City) and the virtual Minecraft world (larger than Neptune). follow link
How to Know Your iPod Model
If you have an old iPod but aren't sure exactly which model it is, check the info at the Web page linked below. You'll find lots of photos and information that will help you determine exactly which model you have.
Visit Identifying iPod Models
Interactive Demonstration of the Scale of the Universe