- A very nice zoom-in/zoom-out gadget showing, in a nutshell, what's in the universe at all scales, from the size of the universe itself down to Planck's length. Click here and then on "play" (from 1027 to 10-35).
- This one is specific for biological objects (from 10-2 to 10-12).
- And here is a zoom-in into Mandelbrot's set 10214 times (this is more exponents than in 1. and 2. above).
(All taken from a Nadder!)