|
Widowmaker (forestry)
In forestry, a widowmaker or fool killer is a detached or broken limb or tree top. The name indicates that such objects can kill forest workers by falling on them, thus "making widows" of their wives. The U.S. Occupational Safety and Health Administration describes widowmakers as "broken off limbs that are hanging freely in the tree to be felled or in the trees close by." Causes Widowmakers are often caused by fungal growth over a sustained period. Other causes include damage from other falling trees or stress on a branch. Hazards Widowmakers may pose a risk to equipment or personnel working under or around the tree. They can become dislodged by wind or during tree felling, and are responsible for 11% of all fatal chainsaw accidents. The U.S. National Institute for Occupational Safety and Health The National Institute for Occupational Safety and Health (NIOSH, ) is the United States federal agency responsible for conducting research and making recommendations for the prevent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Widow-maker In New Mexico
Widow maker, widow-maker or widowmaker may refer to: Common usage * Widowmaker (forestry), any loose overhead debris such as limbs or tree tops that may fall at any time * Widow maker (medicine), a nickname used to describe a highly stenotic left main coronary artery or proximal left anterior descending (LAD) coronary artery of the heart, which is very often fatal Entertainment Film and television * '' K-19: The Widowmaker'', a 2002 historical submarine film * Widowmaker Cave, a fictional cave in the '' Northern Exposure'' episode "The Final Frontier" * ''The Widowmaker'', a 1990 TV drama by John Madden * "Widowmaker" (''American Dad!''), a season 4 episode of ''American Dad!'' Books and comics * ''Widowmaker'' (Marvel Comics), a 2010–2011 four-issue comic book limited series * ''The Widowmaker'', a 1996 science-fiction novel by Mike Resnick Characters * Widowmaker (Image Comics), an assassin from the comic book series ''Noble Causes'' * Widow-Maker, Pecos Bill's horse in Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forestry
Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. The science of forestry has elements that belong to the biological, physical, social, political and managerial sciences. Forest management play essential role of creation and modification of habitats and affect ecosystem services provisioning. Modern forestry generally embraces a broad range of concerns, in what is known as multiple-use management, including: the provision of timber, fuel wood, wildlife habitat, natural water quality management, recreation, landscape and community protection, employment, aesthetically appealing landscapes, biodiversity management, watershed management, erosion control, and preserving forests as " sinks" for atmospheric carbon dioxide. Forest ecosystems have come to be seen as the most important c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occupational Safety And Health Administration
The Occupational Safety and Health Administration'' (OSHA ) is a large regulatory agency of the United States Department of Labor that originally had federal visitorial powers to inspect and examine workplaces. Congress established the agency under the Occupational Safety and Health Act OSH Act, which President Richard M. Nixon signed into law on December 29, 1970. OSHA's mission is to "assure safe and healthy working conditions for working men and women by setting and enforcing standards and by providing training, outreach, education, and assistance". The agency is also charged with enforcing a variety of whistleblower statutes and regulations. OSHA's workplace safety inspections have been shown to reduce injury rates and injury costs without adverse effects on employment, sales, credit ratings, or firm survival. History The Bureau of Labor Standards of the Department of Labor has worked on some work safety issues since its creation in 1922. Economic boom and associated l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grit (newspaper)
''Grit'' is a magazine, formerly a weekly newspaper, popular in the rural U.S. during much of the 20th century. It carried the subtitle "America's Greatest Family Newspaper". In the early 1930s, it targeted small town and rural families with 14 pages plus a fiction supplement. By 1932, it had a circulation of 425,000 in 48 states, and 83% of its circulation was in towns of fewer than 10,000 inhabitants. History The publication was founded in 1882 as the Saturday edition of the Williamsport, Pennsylvania, ''Daily Sun and Banner''. In 1885, the name was purchased for $1,000 by 25-year-old German immigrant Dietrick Lamade (pronounced Lam'-a-dee), who established a circulation of 4,000 during the first year. Lamade was born February 6, 1859, in Gölshausen, Baden-Württemberg, Southern Germany, one of nine children of Johannes Dietrick and Caroline Stuepfle Lamade. The family moved to Williamsport in 1867, where Johannes died of typhoid fever on January 4, 1869. To support the fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chainsaw
A chainsaw (or chain saw) is a portable gasoline-, electric-, or battery-powered saw that cuts with a set of teeth attached to a rotating chain driven along a guide bar. It is used in activities such as tree felling, limbing, bucking, pruning, cutting firebreaks in wildland fire suppression, and harvesting of firewood. Chainsaws with specially designed bar-and-chain combinations have been developed as tools for use in chainsaw art and chainsaw mills. Specialized chainsaws are used for cutting concrete during construction developments. Chainsaws are sometimes used for cutting ice; for example, ice sculpture and winter swimming in Finland. History In surgery The origin of chain saws in surgery is debated. A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (c. 1783–1785) by two Scottish doctors, John Aitken and James Jeffray, for symphysiotomy and excision of diseased bone, respectively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute For Occupational Safety And Health
The National Institute for Occupational Safety and Health (NIOSH, ) is the United States federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness. NIOSH is part of the Centers for Disease Control and Prevention (CDC) within the U.S. Department of Health and Human Services. Despite its name, it is not part of the National Institutes of Health. Its current director is John Howard. NIOSH is headquartered in Washington, D.C., with research laboratories and offices in Cincinnati, Ohio; Morgantown, West Virginia; Pittsburgh, Pennsylvania; Denver, Colorado; Anchorage, Alaska; Spokane, Washington; and Atlanta, Georgia. NIOSH is a professionally diverse organization with a staff of 1,200 people representing a wide range of disciplines including epidemiology, medicine, industrial hygiene, safety, psychology, engineering, chemistry, and statistics. The Occupational Safety and Health Act, signed by President R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snag (ecology)
In forest ecology, a snag refers to a standing, dead or dying tree, often missing a top or most of the smaller branches. In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris. When used in manufacturing, especially in Scandinavia, they are often called dead wood and in Finland, kelo wood. Forest snags Snags are an important structural component in forest communities, making up 10–20% of all trees present in old-growth tropical, temperate, and boreal forests. Snags and downed coarse woody debris represent a large portion of the woody biomass in a healthy forest. In temperate forests, snags provide critical habitat for more than 100 species of bird and mammal, and snags are often called 'wildlife trees' by foresters. Dead, decaying wood supports a rich community of decomposers like bacteria and fungi, insects, and other invertebrates. These organisms a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
