Scrutable

I don't know if this will be of interest, but if you ever need to measure the area of things in images (for example, the relative sizes of the 4 nations in the UK), you can use the free imaging program The GIMP to do this. "How to:" is here.
https://docs.google.com/document/d/1C9r ... sp=sharing

Handy for putting everything in standard "Size of Wales" units.

But actually handy (if I can overcome my shudders at The Gimp UI). Thanks.