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1 There is only one described species in this genus. It grows to a length of 7.2 centimetres (2.8 in) SL. [8] Cyclothone: 13 [9] Cyclothone is a genus of bioluminescent bristlemouths. They are typically about 3 inches long and found usually at depths exceeding 1000 feet. [10] This genus is thought to contain more individuals than any other ...
The lower the temperature, the greater the brine concentration. A January 2014 along the coast of the White Sea recorded that at an air temperature of −1 °C the brine salinity was between 30 and 35 psu while the salinity at sea was 28 psu. When the temperature was −12 °C the salinity of the brine increased to between 120 and 156 psu. [5]
Polychaeta (/ ˌ p ɒ l ɪ ˈ k iː t ə /) is a paraphyletic [1] class of generally marine annelid worms, commonly called bristle worms or polychaetes (/ ˈ p ɒ l ɪ ˌ k iː t s /).Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
The toy sinks when placed into water, but after a few seconds, enough water leaks in to react with the baking powder and produce carbon dioxide bubbles. The resulting foam creates just enough buoyancy in the toy for it to rise towards the surface of the water. When the toy surfaces, it capsizes, releasing the gas into the air. The toy sinks ...
[2] They can reach up to 13 cm (5.1 in) in length and are pale gray, with red tentacle-like gills on their heads. Perhaps most fascinating, their tail ends are often resting in temperatures as high as 80 °C (176 °F), while their feather-like heads stick out of the tubes into water that is much cooler, 22 °C (72 °F). [ 3 ]
Buoyancy-forced downwelling, often termed convection, is the deepening of a water parcel due to a change in the density of that parcel.Density changes in the surface ocean are primarily the result of evaporation, precipitation, heating, cooling, or the introduction and mixing of an alternate water or salinity source, such as river input or brine rejection.
The selective inverted sink or SIS is a device used by farmers to protect plants from frost, developed by Uruguayan Rafael Guarga in the late 1990s. The sink is actually a large fan housed in a chimney-like structure, and works by defeating surface temperature inversion. Cold air is denser than warm air, and will pool at ground level during ...
1 × 3-inch (76 mm) / 50 caliber deck gun [5] Bofors 40 mm and Oerlikon 20 mm cannon USS Barb (SS-220) , a Gato -class submarine , was the first ship of the United States Navy to be named for the Barbus , a genus of ray-finned fish .