Timber Physics : Preliminary Report (Classic Reprint) pdf
Timber Physics : Preliminary Report (Classic Reprint) pdf
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Author: B E Fernow
Number of Pages: 80 pages
Published Date: 27 Sep 2015
Publisher: Forgotten Books
Publication Country: United States
Language: English
ISBN: 9781332299669
File Name: timber.physics.preliminary.report.(classic.reprint).pdf
Download Link: timber physics preliminary report (classic reprint)
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Excerpt from Timber Physics: Preliminary Report Scientific research is satisfied with its results without any reference to their practical application. Increase of knowledge is its self sufficient aim. Whether this may in the end bring us an increase of power to control natures forces or to utilize them to better advantage is not the concern of science, and yet all increase of this power has come directly or indirectly from such scientific research. Acknowledgement of ignorance, then, from a scientific point of view, is sufficient to establish the need of an investigation. From a practical and economic point of view, however, it would still remain necessary to point out whether and why the need is a pressing one and what direct benefits may be expected from such an investigation. It will be admitted by all who have to handle wood in building, engineering, and manufacturing, that our knowledge regarding the properties of our various timbers is just very satisfactory, and that while attempts more or less systematic have been made to determine these properties, and knowledge gained from experience exists among those who have handled certain classes of woods for certain purposes, there does not exist much reliable published information for general use. It is also a well-known fact that from this ignorance of the value of our varied timber wealth, and its special adaptation to particular uses, large quantities of valuable material have been wasted. Everybody is familiar with the waste of our fine black walnut timber for fence rails, posts, and firewood. Until twelve or fifteen years ago many million feet of hemlock were left to rot in the woods, after the bark had been taken for tanning purposes, or this timber was not cut at all because its value for building purposes was not understood or was underrated. In Alabama, along the Louisville and Nashville Railroad, a few years ago a large amount of chestnut oak was felled for the tan bark alone, the wood of the trees being allowed to rot, because railroad people did not know its value for railroad ties. The Division of Forestry, by a little circular, called their attention to the superiority of this timber for tie purposes, and now the wood is utilized, and thus for this region alone a saving of from $40,000 to $50,000 annually was effected, or more than three to four times as much as the annual appropriations for the Division of Forestry. Even now many thousand cords of this valuable wood are lost there and in other regions when the bark is taken for tanning purposes, while the wood itself, which contains as much and more tannic acid per cord than the bark, is left unused, because it can not be profitably transported in its original form. Presently a new wealth will be developed for the tanners, where it was not looked for. Our railroad system requires annually 80,000,000 ties, costing the railroad companies about $30,000,000. Their life in the average may be computed at six and one-half years. There are means of doubling their life easily by using only the more durable kinds, paying proper attention to the handling of the ties and by impregnation with fungus-resisting materials or by other processes. Such increase of durability may be obtained by an expenditure of, say, $20,000,000, by which an annual saving of more than $5,000,000 would be effected, or 25 per cent on the additional outlay. These figures are extremely conservative and the advantage might readily be doubled. We could multiply such examples of wasteful practice in every direction, arising at least in part from lack of knowledge. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
Read online Timber Physics : Preliminary Report (Classic Reprint) Buy Timber Physics : Preliminary Report (Classic Reprint) Download Timber Physics : Preliminary Report (Classic Reprint) ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook Timber Physics : Preliminary Report (Classic Reprint) ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
Timber Physics : Preliminary Report (Classic Reprint) by B E Fernow
Author: B E Fernow
Number of Pages: 80 pages
Published Date: 27 Sep 2015
Publisher: Forgotten Books
Publication Country: United States
Language: English
ISBN: 9781332299669
File Name: timber.physics.preliminary.report.(classic.reprint).pdf
Download Link: timber physics preliminary report (classic reprint)
---------------------------------------------------------------
Excerpt from Timber Physics: Preliminary Report Scientific research is satisfied with its results without any reference to their practical application. Increase of knowledge is its self sufficient aim. Whether this may in the end bring us an increase of power to control natures forces or to utilize them to better advantage is not the concern of science, and yet all increase of this power has come directly or indirectly from such scientific research. Acknowledgement of ignorance, then, from a scientific point of view, is sufficient to establish the need of an investigation. From a practical and economic point of view, however, it would still remain necessary to point out whether and why the need is a pressing one and what direct benefits may be expected from such an investigation. It will be admitted by all who have to handle wood in building, engineering, and manufacturing, that our knowledge regarding the properties of our various timbers is just very satisfactory, and that while attempts more or less systematic have been made to determine these properties, and knowledge gained from experience exists among those who have handled certain classes of woods for certain purposes, there does not exist much reliable published information for general use. It is also a well-known fact that from this ignorance of the value of our varied timber wealth, and its special adaptation to particular uses, large quantities of valuable material have been wasted. Everybody is familiar with the waste of our fine black walnut timber for fence rails, posts, and firewood. Until twelve or fifteen years ago many million feet of hemlock were left to rot in the woods, after the bark had been taken for tanning purposes, or this timber was not cut at all because its value for building purposes was not understood or was underrated. In Alabama, along the Louisville and Nashville Railroad, a few years ago a large amount of chestnut oak was felled for the tan bark alone, the wood of the trees being allowed to rot, because railroad people did not know its value for railroad ties. The Division of Forestry, by a little circular, called their attention to the superiority of this timber for tie purposes, and now the wood is utilized, and thus for this region alone a saving of from $40,000 to $50,000 annually was effected, or more than three to four times as much as the annual appropriations for the Division of Forestry. Even now many thousand cords of this valuable wood are lost there and in other regions when the bark is taken for tanning purposes, while the wood itself, which contains as much and more tannic acid per cord than the bark, is left unused, because it can not be profitably transported in its original form. Presently a new wealth will be developed for the tanners, where it was not looked for. Our railroad system requires annually 80,000,000 ties, costing the railroad companies about $30,000,000. Their life in the average may be computed at six and one-half years. There are means of doubling their life easily by using only the more durable kinds, paying proper attention to the handling of the ties and by impregnation with fungus-resisting materials or by other processes. Such increase of durability may be obtained by an expenditure of, say, $20,000,000, by which an annual saving of more than $5,000,000 would be effected, or 25 per cent on the additional outlay. These figures are extremely conservative and the advantage might readily be doubled. We could multiply such examples of wasteful practice in every direction, arising at least in part from lack of knowledge. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
Read online Timber Physics : Preliminary Report (Classic Reprint) Buy Timber Physics : Preliminary Report (Classic Reprint) Download Timber Physics : Preliminary Report (Classic Reprint) ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook Timber Physics : Preliminary Report (Classic Reprint) ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent