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  2. Birch wood - Wikipedia

    en.wikipedia.org/wiki/Birch_wood

    Ray section of birch wood. Birch wood is a type of wood of the birch. Birch wood is pale yellow-brown wood having a close, straight grain and uniform texture that finishes to a smooth surface. Sometimes it is dyed to imitate mahogany. This type of wood is used for among others firewood, turnery, furniture, cabinetry, tools handles, hoops ...

  3. Betula alleghaniensis - Wikipedia

    en.wikipedia.org/wiki/Betula_alleghaniensis

    Its wood is relatively strong, close grained, and heavy. The wood varies in color from reddish brown to creamy white and accepts stain and can be worked to a high polish. Like most birches, yellow birch wood rots quickly due to its tendency to trap moisture. The cellulose from rotting birch logs was collected by Native Americans and used as a ...

  4. Birch - Wikipedia

    en.wikipedia.org/wiki/Birch

    Birch plywood is made from laminations of birch veneer. It is light but strong, and has many other good properties. It is among the strongest and dimensionally most stable plywoods, although it is unsuitable for exterior use. Birch plywood is used to make longboards , giving it a strong yet flexible ride

  5. List of woods - Wikipedia

    en.wikipedia.org/wiki/List_of_woods

    NCSU Inside Wood project; Reproduction of The American Woods: exhibited by actual specimens and with copious explanatory text by Romeyn B. Hough; US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF 916K; International Wood ...

  6. Betula lenta - Wikipedia

    en.wikipedia.org/wiki/Betula_lenta

    The wood of black birch is heavy at 47 pounds per cubic foot and is used for furniture, millwork, and cabinets. It is similar to yellow birch wood and often not distinguished from it in the lumber trade. [6] The sap flows about a month later than maple sap, and much faster. The trees can be tapped in a similar fashion, but must be gathered ...

  7. Janka hardness test - Wikipedia

    en.wikipedia.org/wiki/Janka_hardness_test

    When testing wood in lumber form, the Janka test is always carried out on wood from the tree trunk (known as the heartwood), and the standard sample (according to ASTM D143) is at 12% moisture content and clear of knots. [3] The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the ...

  8. Vitamin D not recommended for preventing fractures in older ...

    www.aol.com/vitamin-d-not-recommended-preventing...

    The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.

  9. Wood - Wikipedia

    en.wikipedia.org/wiki/Wood

    Wood is a structural tissue/material found as xylem in the stems and roots of trees and other woody plants.It is an organic material – a natural composite of cellulosic fibers that are strong in tension and embedded in a matrix of lignin that resists compression.

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