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1. That part of the ocean lying more than a few hundred nautical mile s from shore, and thus beyond the outer boundary of green water. 2. More generally, the open ocean or deep sea. blue-water navy 1. A navy capable of sustained operations in the open ocean, beyond a few hundred nautical miles from shore. 2.
A ball woven out of line used to provide heft to heave the line to another location. The monkey fist and other heaving-line knots were sometimes weighted with lead (easily available in the form of foil used e.g. to seal tea chests from dampness) although Clifford W. Ashley notes that there was a "definite sporting limit" to the weight thus ...
Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...
When the first transatlantic telegraph cable was laid in 1858 by Cyrus West Field, it operated for only three weeks; a subsequent attempt in 1866 was more successful. [citation needed] On July 13, 1866 the cable laying ship Great Eastern sailed out of Valentia Island, Ireland and on July 27 landed at Heart's Content in Newfoundland, completing the first lasting connection across the Atlantic.
Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. (The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid-ocean ridge is the spreading half-rate and is equal to half of the spreading rate). Spreading rates determine if the ridge is fast, intermediate, or slow.
"The spread of urban trading networks, and their extension along the Persian Gulf and eastern Mediterranean, created a complex molecular structure of regional foci so that as well as the zonation of core and periphery (originally created around Mesopotamia) there was a series of interacting civilizations: Mesopotamia, Egypt, the Indus Valley ...
Tokyo Bay Aqua-Line (Japan) Michael Davitt Bridge (Ireland–Achill Island) Amur Bay Bridge (Russia) Kola Bay Bridge (Russia) Russky Bridge (Russia) Zolotoy Bridge (Russia) Muksalma Dam (Russia) Saint Petersburg Dam (Russia) Western High-Speed Diameter (Russia) Bridge across the Malaya Porya Bay (Russia) Road bridge across the Kanda Bay (Russia)
Isopleth – contour line joining points corresponding to similar values. Often used to plot yield-per-recruit values on a graph showing the changes as a function of size-at-first-capture and fishing mortality. Isopods – group of small crustaceans that includes fish lice. isotherm – contour line connecting points with the same temperature.