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Snow Mushroom
Snow mushrooms are large accumulations of compacted snow which form in regions subject to heavy snowfalls. A necessary condition is the presence of a supporting structure, such as boulders or tree stumps resulting from felling operations. In the absence of wind snow gathers on top of the support, growing to as much as 12 feet in diameter. The physical nature of the snow will change under pressure, and layering produced by freeze/thaw cycles, and it will behave like a very viscous fluid. In places fields of snow mushrooms will form, and if the cold conditions and snowfall persist the weight of accumulated snow will cause it to slowly sag or flow down until the ground level is reached, after which it will spread out from the base, losing the typical mushroom shape. This phenomenon was first reported in a 1902 issue of ''The Geographical Journal''. Snow mushrooms may be seen in temperate, frigid and polar regions around the globe, and wherever there is sufficient snowfall, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Mushroom (4360246476)
''Tremella fuciformis'' is a species of fungus; it produces white, frond-like, gelatinous basidiocarps (fruiting bodies). It is widespread, especially in the tropics, where it can be found on the dead branches of broadleaf trees. This fungus is commercially cultivated and is one of the most popular fungi in the Chinese cuisine, cuisine and Chinese medicine, medicine of China. ''T. fuciformis'' is commonly known as snow fungus, snow ear, silver ear fungus, white jelly mushroom, and white cloud ears. ''T. fuciformis'' is a parasitic yeast, and grows as a slimy, mucus-like film until it encounters its preferred hosts, various species of ''Annulohypoxylon'' (or possibly ''Hypoxylon'') fungi, whereupon it then invades, triggering the aggressive Mycelium, mycelial growth required to form the fruiting bodies. Description Fruit bodies are gelatinous, watery white, up to across (larger in cultivated specimens), and composed of thin but erect, seaweed-like, branching fronds, often c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow
Snow consists of individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide, or Sublimation (phase transition), sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes Nucleation, nucleate around particles in the atmosphere by attracting supercooling, supercooled water droplets, which Freezing, freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns, and Hard rime, rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Geographical Journal
''The Geographical Journal'' is a quarterly peer-reviewed academic journal of the Royal Geographical Society (with the Institute of British Geographers). It publishes papers covering research on all aspects of geography. It also publishes shorter Commentary papers and Review Essays. Since 2001, ''The Geographical Journal'' has been published in collaboration with Wiley-Blackwell. The journal dates back to two related publications established in the 19th century, ''Journal of the Royal Geographical Society of London'' (published from 1831 to 1880), and ''Proceedings of the Royal Geographical Society of London '', published from 1857 to 1877. Then ''Proceedings of the Royal Geographical Society and Monthly Record of Geography'', published from 1879 to 1892, continued and absorbed the previous journals. In 1893, the journal renamed itself ''The Geographical Journal''. Prior to 2000, ''The Geographical Journal'' published society news alongside articles and it continues to publish the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
