Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 215
... 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 scale ) the reflected sound will be scattered , * Of the U.S. Bureau of Standards . broken ...
... 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 scale ) the reflected sound will be scattered , * Of the U.S. Bureau of Standards . broken ...
Strona 216
... reflected sound wave is retarded by the proper amount it may happen that the com- pression of the directly transmitted sound and the rarefaction of the reflected sound arrive at the ear at the same time , neutral- ising each other's ...
... reflected sound wave is retarded by the proper amount it may happen that the com- pression of the directly transmitted sound and the rarefaction of the reflected sound arrive at the ear at the same time , neutral- ising each other's ...
Strona 222
... reflected in the lowered value of total exports . DOMINICAN REPUBLIC PREFERENCE FOR PAINTS . The colours of paints having the best demand in the Republic are , in the order named , white , blue , black and green . Retail prices of ...
... reflected in the lowered value of total exports . DOMINICAN REPUBLIC PREFERENCE FOR PAINTS . The colours of paints having the best demand in the Republic are , in the order named , white , blue , black and green . Retail prices of ...
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absorbing absorption acid acoustic activity application Arts Association atom audience auditorium becomes bibliographies British cause ceiling cent Chemical chemistry coefficient complete contained cost cubic desired echo effect electricity electron element example excess existing experiment experimental expressed fact feet floor formation formula give given heat held hydrogen hydrogen ion importance increase industry intensity interest later less light lines London Manufacture March Marks material means measured metals methods million molecules necessary obtained Office optical ordinary organic organisation oxygen Patents plants Plaster possible present produced quantity references reflected reflected sound result reverberation Royal Sabine Science scientific seats Society solid solution sound space speaking specific spectrum square substances TABLE term theory tion total absorption Trade units University usual volume walls Watson weight window