Photozincography, or heliozincography, was a revolutionary way of copying photographic negatives onto zinc to be used for map making, outlines, engravings, and the reproduction of images.
An improved Minecraft map of Great Britain has been released by the Ordnance Survey.
It’s estimated that about 7% of males are color blind in some form (as compared with 0.4% of females). ...
The UK's Ordnance Survey will "will open up its data relating to electoral and local authority boundaries, postcode areas and mid scale mapping information."