The Null Device
Rats have been trained to tell the difference between spoken Japanese and Dutch. (via bOING bOING, who immediately saw the biowar potential of such developments)
Via fact244, a lengthy, extensively-illustrated article on retrofuturism. It's in Italian, but even if you can't read it, the illustrations speak for themselves. They range from the quaint (models of future cities of gigantic highways, and anyone in parts of California or Britain can tell you how well that model of urban planning turned out) to the outlandish (such as maps for a global railway/monorail running across the Bering Strait, or dams to drain parts of the Mediterranean), as well as the usual streamlined cars, jetpacks, spaceplanes, old magazine ads and lots of pulp sci-fi magazine covers.