[headdie]

http://www.bbc.co.uk/news/magazine-13359064

basically the allies were using 3D photography to study Nazi positions, particularly in the search for the V1 and V2 missile sites.

Also a big nod of respect to the pilots who flew the recon missions, unarmed!!! while having to follow a precise pattern over the same area in order to provide the images needed.

[JCDNWarrior]

That's very impressive indeed there. Imagine what sort of technology there's out there already, that no one tells us about or shows.

[Colonol Dekker]

You've seen nothing

[bobbtmann]

Stereoscopes have been around since the 1800's.

[Black Wolf]

Yeah, these things are really useful for geology as well - we used them for air photo analysis at uni.