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Energy analysts accustomed to the metric "k" ('kilo-') for 1,000 are more likely to use MBtu to represent one million, especially in documents where M represents one million in other energy or cost units, such as MW, MWh and $. [15] The unit 'therm' is used to represent 100,000 Btu. [12] A decatherm is 10 therms or one million Btu.
One colonist explained the process of constructing a rudimentary shelter, whereby an individual would, “dig a square pit in the ground, cellar fashion, 6 or 7 feet deep, as long and as broad as they think proper, case the earth inside with wood all around the wall, and line the wood with the bark of trees or something else to prevent the ...
The wood moisture content is above 25% on a dry-weight basis; The environment is sufficiently warm; Oxygen (O 2) is present; Wood with less than 25% moisture (dry weight basis) can remain free of decay for centuries. Similarly, wood submerged in water may not be attacked by fungi if the amount of oxygen is inadequate. Fungi lumber/timber ...
An adult human foot is about 28 cm (11 in) long. The decimetre ( SI symbol: dm ) is a unit of length in the metric system equal to 10 −1 metres ( 1 / 10 m = 0.1 m ). To help compare different orders of magnitude , this section lists lengths between 10 centimeters and 100 centimeters (10 −1 meter and 1 meter).
Wood is relatively light in weight, because its specific weight is less than 500 kg/m 3, this is an advantage, when compared against 2,000–2,500 kg/m 3 for reinforced concrete or 7,800 kg/m 3 for steel. [citation needed] Wood is strong, because the efficiency of wood for structural purposes has qualities that are similar to steel. [citation ...
Large self-supporting wooden roof built for Expo 2000 in Hanover, Germany. Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives, or other methods of fixation [1] to form ...
(202.5 ft) 16.73 m (54.9 ft) Royal Louis: 1758–1773 broken up A 116-gun First-rate ship of the line of the French Royal Navy. 61.4 m (201.4 ft) 16.69 m (54.8 ft) Duquesne Tourville: 1847–1887 1853–1878 unknown scrapped (respectively) Sister 90-gun sail and steam ships of the line that were used in the Crimean War and the French ...
Tonewood refers to specific wood varieties used for woodwind or acoustic stringed instruments. The word implies that certain species exhibit qualities that enhance acoustic properties of the instruments, but other properties of the wood such as aesthetics and availability have always been considered in the selection of wood for musical instruments.
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