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A fishing sinker or plummet is a weight used in conjunction with a fishing lure or hook to increase its rate of sink, anchoring ability, and/or casting distance. Fishing sinkers may be as small as 1 gram (0.035 oz) for applications in shallow water, and even smaller for fly fishing applications, or as large as several pounds (>1 kg) or ...
Drag curve. The drag curve or drag polar is the relationship between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation or displayed as a graph (sometimes called a "polar plot"). [1] Drag may be expressed as actual drag or the coefficient of drag.
Fishing mortality: the removal of fish from the stock due to fishing activities using any fishing gear. [ 1] It is denoted by (F) in fisheries models. (M) and (F) are additive instantaneous rates that sum up to (Z), the instantaneous total mortality coefficient; that is, Z=M+F. [ 2] These rates are usually calculated on an annual basis.
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Survival rate. Survival rate is a part of survival analysis. It is the proportion of people in a study or treatment group still alive at a given period of time after diagnosis. It is a method of describing prognosis in certain disease conditions, and can be used for the assessment of standards of therapy. The survival period is usually reckoned ...
Maritime archaeology. A maritime archaeologist with the Lighthouse Archaeological Maritime Program in St. Augustine, Florida, recording the ship's bell discovered on the 18th century "Storm Wreck." Maritime archaeology (also known as marine archaeology) is a discipline within archaeology as a whole that specifically studies human interaction ...
Michael Steven Grant of New York City wants to retire in a smaller-scale place with access to a larger city. Here’s why he likes Sitges on Spain’s Mediterranean coast.
Expedition to shipwreck in Tallinn Bay. The archaeology of shipwrecks is the field of archaeology specialized most commonly in the study and exploration of shipwrecks. [1] Its techniques combine those of archaeology with those of diving to become Underwater archaeology. However, shipwrecks are discovered on what have become terrestrial sites.