Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.
Lastly, it is also worth noting that there is also considerable potential for mH solutions in 'extreme' contexts with recognised psychological challenges, such as manned spaceflight, submarine navigation, and Antarctic exploration [ 49].
The submarine's navigation into the Juan de Fuca Strait, and what transpires as it arrives at Edmonds, Washington, at Seattle, and on Santa Maria Island, should have students tracing the submarine's course and the novel's plot on an atlas page -- or a computer screen.
The interior was well equipped with the tools to conduct anti-submarine warfare: navigation, communication and tactical electronic equipment along with weapon loads that included bombs, torpedoes, mines and depth charges.
The bride is a daughter of Susan and Howard Levine of Boynton Beach, Fla. Her father retired as an electrical engineer in the Trident navigation submarine group at Lockheed Martin in Mitchel Field, N.Y.
With canny, patient navigation, the submarine rose slowly upwards beneath the trawler, to within "a few feet" of its engine propellers, without being detected.
Researchers believe this technology published online today in Bioinspiration & Biomimetics could be used in aerial or submarine drones to improve navigation, as well as extend the sensory range of current robotic systems, which is limited to vision, radar, and sonar.
At 22 00 the submarine Sturgeon directed her navigation beacon out to sea to guide the convoy in.
The units kept up a punishing schedule of daily long-range reconnaissance and anti-submarine patrols, "practically without navigation aids, frequently through rain storms and heavy cloud" but, "supported by ground staffs as enduring as themselves, the crews maintained an almost inflexibly high standard and achieved considerable success".
-Tricky navigating submarine down stairs.
The court found that, although Brandhuber was the senior officer present on Greeneville, Waddle as captain was solely responsible for the safe navigation of the submarine.
