Word at night: change of illumination 1993-2003

[Penguin]

Pretty interesting: https://plus.google.com/photos/10710...82440124907857 (site needs jscript)

And because we are an eurocentric board, here's a big pic of our home country:

- Red lights appeared during that period
- Orange and yellow areas are regions of high and low intensity lighting respectively that increased in brightness over the ten years.
- Grey areas are unchanged.
- Pale blue and dark blue areas are of low and high intensity lighting that decreased in brightness.
- Very dark blue areas were present in 1993 and had disappeared by 2003.