Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 215
... light without scattering it . If , however , the surface of the mirror be roughened the reflected light will be diffused in all direc- tiins ; and if the walls and ceilings of a room be similarly irregular ( on a sufficiently large ...
... light without scattering it . If , however , the surface of the mirror be roughened the reflected light will be diffused in all direc- tiins ; and if the walls and ceilings of a room be similarly irregular ( on a sufficiently large ...
Strona 222
... light and dark grey , as well as terra cotta are preferred for cement or wood floors . A dislike has developed on the part of the public for maroon and dark brown shades for floor paints to an extent that some retailers have refused to ...
... light and dark grey , as well as terra cotta are preferred for cement or wood floors . A dislike has developed on the part of the public for maroon and dark brown shades for floor paints to an extent that some retailers have refused to ...
Strona 223
... Light . By R. A. HOUSTOUN , M.A. , D.Sc. , was read . The intensity of a beam of light at a point in an absorbing medium decreases exponen- tially as the distance travelled . The law is sometimes known as the Bougwer - Lambert law . It ...
... Light . By R. A. HOUSTOUN , M.A. , D.Sc. , was read . The intensity of a beam of light at a point in an absorbing medium decreases exponen- tially as the distance travelled . The law is sometimes known as the Bougwer - Lambert law . It ...
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