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The floating mass of matted vegetation, organic debris, and soil that constitutes a phumdi has a thickness that varies from a few centimetres to two metres. [15] Its humus is black in colour and porous, with a spongy texture. Only 20% of a phumdi's thickness floats above the water surface; the other 80% remains submerged. [15]
Buoyancy (/ ˈ b ɔɪ ən s i, ˈ b uː j ən s i /), [1] [2] or upthrust is a net upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.
The three cities which comprised Tripura were distributed thus: The lowest, with walls of Iron, located in the underworld, The second, with walls of silver, located on the earth, and
In On Floating Bodies, Archimedes suggested that (c. 246 BC): Any object, totally or partially immersed in a fluid or liquid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Archimedes' principle allows the buoyancy of any floating object partially or fully immersed in a fluid to be calculated.
Loktak Lake in December 2016 Loktak Lake, December 2016. Loktak Lake (Meitei: Loktak Pat [2] [3] [4]) is a freshwater lake in Northeast India.It is a pulsating lake, with a surface area varying from 250 km 2 to 500 km 2 during the rainy season with a typical area of 287 km 2. [5]
It is 40 km 2 (15.4 sq mi) in area, the only floating national park in the world, and an integral part of Loktak Lake. [1] [2] It is currently under the tentative lists of the UNESCO World Heritage Sites, under the title "Keibul Lamjao Conservation Area (KLCA)", additionally covering the buffer of Loktak Lake (140 sq km) and Pumlen Pat (43 sq. km).
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Especially-large floats can be used as seats to float or sit on top of a pool for the user to stand on top in the manner of a raft. A variation known as the "pool noodle" is a long, thin cylinder, measuring 3–5 feet (90–150 cm) long and 3 inches (8 cm) in diameter, sometimes with a hollow core. It can be used to aid in floating or ...