Nuke Boy

Thanks for sharing this. I shared it with others.

As of Friday they were smelling Nuclear Boy in Sacramento.
http://www.nytimes.com/2011/03/19/science/19plume.html?hp

xkcd posted a very nice info-graphic explaining the dosage levels from different sources of radiation; 

http://xkcd.com/radiation/
 
From eating a banana to hanging out near Chernobyl for an hour to the amount to of exposure that will kill you.  It's all about orders of magnitude.

That's a really cool video for explaining a complex and technical problem to kids!