In the ongoing wake of the Fukushima Daiichi crisis, news outlets have been saying “Three Mile Island” and “Chernobyl” a lot. To help alleviate the ensuing confusion and help us all understand radiation doses a little better, Randall Munroe of xkcd fame has prepared a chart of radiation doses on the xkcd blag.

We can see at the 1µSv scale the effect of eating a banana, at the 1mSv scale the dose one gets during a mammogram, and at the 1Sv scale the doses that are likely to kill you. The dose for “Ten minutes next to the Chernobyl reactor core after explosion and meltdown” is pretty astonishing.