If you are science minded, (or even if your not) this is cool and educational

[TandT]

Click here; http://htwins.net/scale2/scale2.swf?bordercolor=white

Be sure to scroll both ways SLOWLY and click on objects for more information. Trace

 

[CliffP]

That's pretty cool! I was all fired up to show it to our 11 year old Carlton, he'd already seen it but did agree it was cool.

 

[Ray LeTourneau]

Yoctometer? I have to remember that in place of that other term for something very small.