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Tree Well
A tree well, also known as a spruce trap, is the space around a tree under its branches that does not get the same amount of snow as the surrounding open space. This creates a void or area of loose snow below the branches and around the trunk that is dangerous to any hikers, snowshoers, skiers, snowboarders, and snowmobilers who fall into them. If someone lands in such a well, often as a result of a fall, it can be too deep for them to climb up the surrounding loose snow before they are buried. Making the situation more dangerous, they often fall into the well head-first and as the result of an accident which could leave them injured or unconscious. Formation A tree's branches shelter the area around its trunk from snowfall. If the snow is deep enough, there is a significant void or area of loose snow underneath the branches around the trunk. Such wells have been observed as deep as . Similar "wells" can also occur near rocks and along streams. Tree wells occur outside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Well Drawing - 02
In botany, a tree is a perennial plant with an elongated Plant stem, stem, or trunk (botany), trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller Arecaceae, palms, Cyatheales, tree ferns, Musa (genus), bananas, and bamboos are also trees. Trees are not a Taxon, taxonomic group but include a variety of plant species that Convergent evolution, have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Dislocation
A joint dislocation, also called luxation, occurs when there is an abnormal separation in the joint, where two or more bones meet.Dislocations. Lucile Packard Children’s Hospital at Stanford. Retrieved 3 March 2013 A partial dislocation is referred to as a subluxation. Dislocations are often caused by sudden trauma on the joint like an impact or fall. A joint dislocation can cause damage to the surrounding ligaments, tendons, muscles, and nerves. Dislocations can occur in any major joint (shoulder, knees, etc.) or minor joint (toes, fingers, etc.). The most common joint dislocation is a shoulder dislocation. Treatment for joint dislocation is usually by closed reduction, that is, skilled manipulation to return the bones to their normal position. Reduction should only be performed by trained medical professionals, because it can cause injury to soft tissue and/or the nerves and vascular structures around the dislocation. Symptoms and signs The following symptoms are common with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowboarding
Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games. Snowboarding was developed in the United States, inspired by skateboarding, sledding, surfing, and skiing. It became popular around the globe, and was introduced as a Winter Olympic Sport at Nagano in 1998 and featured in the Winter Paralympics at Sochi in 2014. , its popularity (as measured by equipment sales) in the United States peaked in 2007 and has been in a decline since. History The first snowboards were developed in 1965 when Sherman Poppen, an engineer in Muskegon, Michigan, invented a toy for his daughters by fastening two skis together and attaching a rope to one end so he would have some control as they stood on the board and glided downhill. Dubbed the "snurfer" (combining snow and surfer) by his wife Nancy, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow
Snow comprises 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 sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles in the atmosphere by attracting supercooled water droplets, which freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns and rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow metamorphoses, by sintering, sublimation and freeze-thaw. Where the climate is co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skiing
Skiing is the use of skis to glide on snow. Variations of purpose include basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International Ski Federation (FIS). History Skiing has a history of almost five millennia. Although modern skiing has evolved from beginnings in Scandinavia, it may have been practiced more than 100 centuries ago in what is now China, according to an interpretation of ancient paintings. However, this continues to be debated. The word "ski" comes from the Old Norse word "skíð" which means to "split piece of wood or firewood". Asymmetrical skis were used in northern Finland and Sweden until at least the late 19th century. On one foot, the skier wore a long straight non-arching ski for sliding, and a shorter ski was worn on the other foot for kicking. The underside of the short ski was either plain or covered with animal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater Ski Resort
Whitewater Ski Resort is a ski resort in western Canada, located a 25-minute drive from Nelson in southern British Columbia. In the Selkirk Mountains, the resort is situated in Ymir bowl, beneath the Ymir Mountain. The Selkirks receive plentiful, dry snow, and the location in a high alpine bowl provides an annual snowfall average of approximately . The elevation of the parking lot is and the lift-served summit is . While Ymir Peak is not included within the ski area boundary, lifts climb both shoulders of the bowl and provide easy traverse routes along ridges to the top. In addition to its snow, the resort is renowned for its tree skiing and steep runs; only 20% of the runs are beginner, while 40% are intermediate and the remaining 40% are advanced. Areas surrounding Whitewater, including West Arm Provincial Park, are renowned for easy access for backcountry split boarding and ski touring. Lifts and terrain The resort consists of three lifts: one triple chairlift (installe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amanda Asay
Amanda Karlene Asay (May 16, 1988 – January 7, 2022) was a Canadian baseball and ice hockey player. She played on the Canada women's national baseball team from 2005 to 2021, and was its longest-serving member at the time of her death. She batted and threw right-handed, and played at catcher, first base, and starting pitcher. Asay joined the national team when she was 17 years old. She played in the World Cup one year later, where she was named to the all-tournament team as first baseman and won the national team's Most Valuable Player (MVP) award. She proceeded to compete in six more World Cup tournaments, earning two silver and two bronze medals in total. She was also part of the roster which secured a silver medal at the 2015 Pan American Games. At the 2016 World Cup, she played as a pitcher, won both her starts by pitching complete games, and was again bestowed the team MVP award. Early life Asay was born in Prince George, British Columbia, on May 16, 1988. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concussion
A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. Symptoms may include loss of consciousness (LOC); memory loss; headaches; difficulty with thinking, concentration, or balance; nausea; blurred vision; sleep disturbances; and mood changes. Any of these symptoms may begin immediately, or appear days after the injury. Concussion should be suspected if a person indirectly or directly hits their head and experiences any of the symptoms of concussion. It is not unusual for symptoms to last 2 weeks in adults and 4 weeks in children. Fewer than 10% of sports-related concussions among children are associated with loss of consciousness. Common causes include motor vehicle collisions, falls, sports injuries, and bicycle accidents. Risk factors include drinking alcohol and a prior history of concussion. The mechanism of injury involves either a direct blow to the head or forces elsewhere on the body that a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backcountry
In the United States, a backcountry or backwater is a geographical area that is remote, undeveloped, isolated, or difficult to access. Terminology Backcountry and wilderness within United States national parks The National Park Service (NPS) generally uses the term "backcountry" to refer to "primitive, undeveloped portions of parks". Developments within backcountry areas are generally limited to trails, unpaved roads, and administrative facilities associated with dispersed recreational use. Dispersed recreational use is the most prevalent human use in backcountry areas, although research activities may also occur. The NPS defines wilderness within US national parks as any "backcountry areas which have been specifically designated as part of the National Wilderness Preservation System or any other area that has been determined to possess the characteristics of wilderness as defined by Section 2(c) of the Wilderness Act". Section 2(c) states in part that wilderness: Wilderne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow On Cypress Tree
Snow comprises 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 metamo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piste
A ''piste'' () is a marked ski run or path down a mountain for snow skiing, snowboarding, or other mountain sports. This European term is FrenchEnglish language ''Fédération Internationale de Ski'' (FIS) website ("trail", "track") and synonymous with 'trail', 'slope', or 'run' in North America. The word is pronounced using a long "e" sound so that it rhymes with "beast". North Americans employ its common European antonym, 'off piste', to describe , especially when referring to skiing outside officially approved areas of a |
Snow Grooming
Snow grooming is the process of manipulating snow for recreational uses with a tractor, snowmobile, piste caterpillar, truck or snowcat towing specialized equipment. The process is used to maintain ski hills, cross-country ski trails and snowmobile trails by grooming (moving, flattening, rototilling, or compacting) the snow on them. A snow groomer is usually employed to pack snow and improve skiing and snowboarding and snowmobile trail conditions. The resulting pattern on the snow is known as corduroy, and is widely regarded as a good surface on which to ski or ride. Snow groomers can also move accumulated snow made by snow machines as part of a process, called "snow farming". Snow groomer A snow groomer (informally called a "piste basher" in the United Kingdom) is a tracked vehicle equipped in front with a shovel (or dozer blade) and behind with a cutter (or roller). It is usually driven by diesel engines. When the machine drives over a snowfield, it pushes snow ahead of it a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
