Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices
Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices
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In our eReader you can find the full English version of the book. Read Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices
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To quickly assess the difficulty of the text, read a short excerpt:
Here then we have a combination of paraial visual paralysis, optic fatigue, general discomfort and distraction from the work in hand, with all the physical and mental ills and the inefficiencies following in their train. Evidently the physiological effects of lighting are very practical fac- tors in illumination, quite as practical as the immediate dollars-and-cents considerations which are more easily sensed.
It must be apparent that scientific and therefore eco- nomic lighting not only provid...es a sufficiency of light flux, steady and so distributed as to avoid obscurity and deep shadows anywhere within the ordinary range of the workers' eyes, but takes care that the source of illumination, if considerably concentrated as in the case in most lighting units now in use, shall be concealed, enclosed in a diffusing envelope, or placed outside the range of vision . Unless at such a distance that the brilliancy is greatly reduced before the rays reach the eye. Otherwise the main purpose of lighting is defeated, and the workers themselves are physi- cally harmed and are rendered less efficient for their work.
What to read after Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices?
You can find similar books in the "Read Also" column, or choose other free books by Aw Shaw Company to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Here then we have a combination of paraial visual paralysis, optic fatigue, general discomfort and distraction from the work in hand, with all the physical and mental ills and the inefficiencies following in their train. Evidently the physiological effects of lighting are very practical fac- tors in illumination, quite as practical as the immediate dollars-and-cents considerations which are more easily sensed.
It must be apparent that scientific and therefore eco- nomic lighting not only provid...es a sufficiency of light flux, steady and so distributed as to avoid obscurity and deep shadows anywhere within the ordinary range of the workers' eyes, but takes care that the source of illumination, if considerably concentrated as in the case in most lighting units now in use, shall be concealed, enclosed in a diffusing envelope, or placed outside the range of vision . Unless at such a distance that the brilliancy is greatly reduced before the rays reach the eye. Otherwise the main purpose of lighting is defeated, and the workers themselves are physi- cally harmed and are rendered less efficient for their work.
What to read after Data On Artificial Lighting Supplementary to Section Ii of Scientific Offices?
You can find similar books in the "Read Also" column, or choose other free books by Aw Shaw Company to read onlineMoreLess
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