House

sayid89 (19)in #photos • 7 years ago

Greetings, how are you steemit friends? Hopefully keep the spirit and healthy. In my previous post we have discussed the introduction of earthquakes and practical anticipation to minimize the negative side, you can check it here and we will continue the discussion, hopefully useful.

WOOD

Wood is a stem of plants that have lignifikasi so hard, not all stems or twigs can be classified wood if not experienced lignifikasi process.

Because it has a hard, rich nature can be utilized for various purposes such as furniture, paper material, building materials and the simplest as fuel.
In accordance with the opinion of wood experts, there have been about 395-400 million years ago.
The wood has a characteristic called the growth circumference, the circumference can be seen when the wooden trunk is cut across, the center-most density is usually lighter than the outer circumference.
Wood is classified by the level of hardness of the stem, the wood that has a higher density usually has a harder stem so that the wood has more benefits.
But in the English sense hardwood and softwood more to the plants that produce it, such as broadleaf plants that produce hardwood.
Wood has varying water content, the moisture content can be found at.
• Plasma cell wall
• Protoplasma
• Between empty space and between cells

Wood also has a chemical content ie.
• Cellulose
• Hemicellulose
• Lignin

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