Industrial Lighting Survey of the City of Chicago
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In our eReader you can find the full English version of the book. Read Industrial Lighting Survey of the City of Chicago 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 Industrial Lighting Survey of the City of Chicago
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To quickly assess the difficulty of the text, read a short excerpt:
In seme shops the in- tensity is so low, except at a few points, that it is hard to see one ' s way about the place. Lighting of this kind is not only insufficient from a standpoint of safety, but also strains the eye.
If just txhe work is highly illuminated, and the rest of the shop is in compara - tive darkness, the uneven intensity en- countered by tlie eye causes the same tir- ing effect as that of a flickering light source.
From the psychological standpoint, bright walls and ceiling lend a...n air of cheerfulness and vade-av;alveness to a room.
which is wanting where the work only is iliumina ted. If, as in a cotton or a paper mill, the materials are of such a color that they will reflect a large pro- portion of the light incident upon them, the resulting illumination received on the walls and ceiling will be sufficient to obviate any appearance of gloom.
If, on the other hand, the working surface is too dark to reflect much light, it may be taken care of by placing a few units so tliey V'Jill illuminate the vvalls and ceiling.
What to read after Industrial Lighting Survey of the City of Chicago?
You can find similar books in the "Read Also" column, or choose other free books by Anderson, F. B. a to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In seme shops the in- tensity is so low, except at a few points, that it is hard to see one ' s way about the place. Lighting of this kind is not only insufficient from a standpoint of safety, but also strains the eye.
If just txhe work is highly illuminated, and the rest of the shop is in compara - tive darkness, the uneven intensity en- countered by tlie eye causes the same tir- ing effect as that of a flickering light source.
From the psychological standpoint, bright walls and ceiling lend a...n air of cheerfulness and vade-av;alveness to a room.
which is wanting where the work only is iliumina ted. If, as in a cotton or a paper mill, the materials are of such a color that they will reflect a large pro- portion of the light incident upon them, the resulting illumination received on the walls and ceiling will be sufficient to obviate any appearance of gloom.
If, on the other hand, the working surface is too dark to reflect much light, it may be taken care of by placing a few units so tliey V'Jill illuminate the vvalls and ceiling.
What to read after Industrial Lighting Survey of the City of Chicago?
You can find similar books in the "Read Also" column, or choose other free books by Anderson, F. B. a to read onlineMoreLess
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