Despite their immense size and distinctive asymmetrical superstructure, U.S. Navy aircraft carriers are meticulously designed ...

For three turbulent centuries, the glimpse of a square sail and dragon-headed prow on the horizon struck ... Without this crucial advance in ship technology, the Vikings would never have become ...

As can just be made out here, in the ship's prow stood a second, wood-framed canopy. Again, its intended use is unknown. Over a half century after the boat's discovery, scholars still debate its ...