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Small firewood logs drying on-site. For some purposes, wood is not dried at all, and is used green. Often, wood must be in equilibrium with the air outside, as for construction wood, or the air indoors, as for wooden furniture. Wood is air-dried or dried in a purpose built oven . Usually the wood is sawn before drying, but sometimes the log is ...
The longest plank in the world (2002) is in Poland (near Szymbark) and measures 36.83 metres (about 120 ft 10 in) long. Individual pieces of lumber exhibit a wide range in quality and appearance with respect to knots, slope of grain, shakes and other natural characteristics.
The Madera Sugar Pine Company was a United States lumber company that operated in the Sierra Nevada region of California during the late 19th and early 20th centuries. The company distinguished itself through the use of innovative technologies, including the southern Sierra's first log flume and logging railroad, along with the early adoption of the Steam Donkey engine.
Bottle kiln: a type of intermittent kiln, usually coal-fired, formerly used in the firing of pottery; such a kiln was surrounded by a tall brick hovel or cone, of typical bottle shape. The tableware was enclosed in sealed fireclay saggars; as the heat and smoke from the fires passed through the oven it would be fired at temperatures up to 1,400 ...
María and Julián Martinez pit firing blackware pottery at San Ildefonso Pueblo in New Mexico (c.1920). Pit-firing continued in some parts of Africa until modern times. In Mali, a firing mound, a large version of the pit, is still used at Kalabougou to make pottery that is commercial, mainly made by the women of the village to be sold in the towns.
A 2011 discovery in the Canadian province of New Brunswick yielded the earliest known plants to have grown wood, approximately 395 to 400 million years ago. [5] [6]Wood can be dated by carbon dating and in some species by dendrochronology to determine when a wooden object was created.
The beehive-shaped kilns are each about 20 feet (6.1 m) tall and 20 feet (6.1 m) in diameter. When operating, each kiln used 30 to 40 cords of Douglas fir wood per load, producing about 1,500 to 2,000 bushels (70 cubic meters) of charcoal over a two-day burn. The kiln operation lasted for less than three years, employing 150 to 200 people at ...
Lincoln Logs are an American children's construction toy consisting of square-notched miniature lightweight logs used to build small forts and buildings. They were invented around 1916 by John Lloyd Wright , second son of well-known architect Frank Lloyd Wright . [ 1 ]