Brits used 3-D photos to find Hitler's rockets sites

Image by Getty Images via @daylifeThe BBC has a story with an included video that showed how the system worked.  It is interesting how they were able to tweak 1940s technology to get the information they needed.I tend to think that the Germans made a mistake by targeting London.  It would have made more strategic sense to target the invasion force and its fleet of  boats needed for making the