Enigma Machine - Enigma Machine During World War II, the Germans used the Enigma, a cipher machine, to develop nearly unbreakable codes for sending messages. The Enigma's settings offered 150,000,000,000,000,000,000 possible solutions, yet the Allies were eventually able to crack its code. By end of the war, 10 percent of all German Enigma communications were decoded at Bletchley Park, in England, on the world’s first electromagnetic computers.
U-Boat 110, a German Submarine that was sunk and risen in 1918. This photograph shows the control room in the Submarine, including the manhole to the periscope well, hand wheels for pressure gear, valve wheels for flooding and blowing and the air pressure gauges.
Rare shot of battle group's sub. BAY OF BENGAL (April 14, 2012) USS Topeka (SSN 754) leads USS Carl Vinson (CVN 70), USS Bunker Hill (CG 52), USS Halsey (DDG 97), USNS Bridge (T-AOE 10) and ships of the Indian navy in formation during Malabar, an annual bilateral naval field training exercise between the two navies. (U.S. Navy photo by Mass Communication Specialist 2nd Class James R. Evans)