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Woodthe principal strengthening and nutrient-conducting tissue of trees and other plants and one of the most abundant and versatile natural materials. Produced by many botanical wood and work recensies, including both gymnosperms and angiospermswood is available in various colours and grain patterns.

It is strong in relation to its weight, is insulating to heat and electricityand has desirable acoustic properties. As a material, wood has been in service since humans appeared on Earth. Today, wood and work recensies spite of technological advancement and competition from metalsplasticscementand other materials, wood maintains a place in wood and work recensies of its traditional roles, and its serviceability is expanding through new uses.

In addition to well-known products such as lumberfurniture, and plywood, wood is the raw material for wood-based panels, pulp and paperand many chemical products. Finally, wood is still an important fuel in much of the world. In botanical terms, wood is part of the system that conveys water and dissolved minerals from the roots to the rest of the plantstores food created by photosynthesisand furnishes mechanical support. It is produced by an estimated 25, to 30, species of plants, including herbaceous ones, though only 3, to 4, species produce wood that is suitable for use as a material.

Wood-producing forest trees and other woody plants are of two categories: gymnosperms and angiosperms. Gymnosperms, or cone-bearing trees, produce softwoodssuch as pine and spruceand angiosperms produce temperate and tropical hardwoodssuch as oakbeechteakand balsa. It should be noted that the distinction implied by hardwood and softwood is not true in all cases.

Some hardwoods—e. Wood is a material of great economic importance. It is found throughout the world and can be sustainably managed as a renewable resource—in contrast to coalores, wood and work recensies petroleumwhich are gradually exhausted. By means of its harvesting in forestsits transportation, its processing in workshops and industries, and its trade and use, wood provides jobs and supports economic development and, in some countries, basic subsistence.

Indicative of this importance is the continued high demand for wood and wood products. On a weight basis, the consumption of wood exceeds by far that of other materials. More than half of roundwood log production is consumed wood and work recensies fuel, mainly in less-developed countries. Wood and work recensies of paper and paperboard has shown the most rapid increase among wood products; this trend is expected to continue as consumption per person in the less-developed countries approaches that in the developed wood and work recensies. Rising world population is the driving force of increasing consumption of wood and consequent deforestation.

The depletion of many forests, especially in the tropics, makes uncertain the provision of an adequate wood supply to satisfy the anticipated need. Wood and work recensies Article Media Additional Info. Article Contents. Print print Print. Table Of Contents. While every effort has been made to follow citation style rules, there may be some discrepancies.

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External Websites. Articles from Britannica Encyclopedias for elementary and high school students. Author of Science and Technology of Wood and others. See Article History. Temperate softwoods left column and hardwoods right columnselected to highlight natural variations in colour and figure: A Douglas fir, B sugar pine, C redwood, D white oak, E American sycamore, and F black cherry.

Each image shows from left to right transverse, radial, and tangential surfaces. Click on an individual image for an enlarged view. Six tropical hardwoods, selected to emphasize the range of natural variation in colour and figure: A Indian rosewood, B lignum vitae, C zebrawood, D padauk, E tulipwood, and F teak.

Britannica Quiz. Building Blocks of Everyday Objects. What are cigars made of? What material is glass classified as? Interactive map showing the geographic distribution of the world's forests, differentiated by categories of wood. Click on individual legend headings and examples to view articles on particular forest types and trees. Click on the names of continents for discussions of their plant life.

Groundbreaking research on transparent wood. Get a Britannica Premium subscription and gain access to exclusive content. Wood and work recensies Now.

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Woodworkers set up, operate, and tend all types of woodworking machines, such as saws, milling machines, drill presses, lathes, shapers, routers, sanders, planers, and wood-fastening machines. Operators set up the equipment, cut and shape wooden parts, and verify dimensions, using a template, caliper, and rule. Wood and Play, Purmerend. 2, likes · 7 talking about this. Wood and Play maakt unieke meubels voor kinderen, waar zij urenlang mee kunnen spelen. Alles geheel naar eigen wensFollowers: K. 13, Woodworking jobs available on www.- Apply to Laborer, Woodworker, Warehouse Worker and more!

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