 Protection against Heat. — Texture has nothing to do with protection from the direct solar rays ; this depends entirely on color. White is the best color ; then gray, yellow, pink, blue, black. In hot countries, therefore, white or light gray clothing...  Manual of practical hygiene v. 2 - หน้า 79โดย Edmund Alexander Parkes - 1883มุมมองทั้งเล่ม - เกี่ยวกับหนังสือเล่มนี้
 | Edmund Alexander Parkes - 1866 - 718 หน้า
...countries, therefore, white or light-grey clothing should be chosen. In the shade, the effect of colour is not marked. The thickness, and the conducting power...(especially the former) which influence heat. Protection againxt Cold Winds. — For equal thicknesses, leather and indiarubber take the first rank ; wool the... | |
 | Edmund Alexander Parkes - 1873 - 814 หน้า
...countries, therefore, white or light-grey clothing should be chosen. In the shade, the effect of colour is not marked. The thickness, and the conducting power...the former) which influence heat. Protection against Coll Winds. — For equal thicknesses, leather and indiarubber take the first rank; wool the second;... | |
 | John Milner Fothergill - 1874 - 426 หน้า
...countries therefore, white or light grey clothing should be chosen. 'In the shade the effect of colour is not marked. The thickness and the conducting power of the material L 2 are the conditions (especially the former) which influence heat. 'Protection against Cold Winds.... | |
 | John Milner Fothergill - 1875 - 396 หน้า
...best color ; then grey, yellow, pink, blue, black. In hot countries therefore, white or light grey clothing should be chosen. ' In the shade the effect...rank, wool the second, cotton and linen about equal.' PROPOSITIONS. 1. There are two great divisions of food — the respiratory and the plastic. 2. The... | |
 | Joseph Chrisman Hutchison - 1875 - 332 หน้า
...best color ; then gray, yellow, pink, blue, black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade the effect...conditions (especially the former) which influence heat. The body should not only be so protected by its covering as to be kept from rain and damp ; but the... | |
 | Joseph Chrisman Hutchison - 1875 - 336 หน้า
...best color ; then gray, yellow, pink, blue, black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade the effect...thickness and the conducting power of the material are the couditions (especially the former) which influence heat. The body should not only be so protected by... | |
 | Joseph Chrisman Hutchison - 1875 - 332 หน้า
...black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade tie effect of color is not marked. The thickness and the...conditions (especially the former) which influence heat. The body should not only be so protected by its covering as to be kept from rain and damp ; but the... | |
 | J. C. Hutchinson - 1875 - 324 หน้า
...black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade t!ie effect of color is not marked. The thickness and the...conditions (especially the former) which influence heat. The body should not only be so protected by its covering as to be kept from rain and damp ; but the... | |
 | Joseph Chrisman Hutchison - 1875 - 332 หน้า
...the best color; then gray, yellow, pink, blue, black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade the effect...marked. The thickness and the conducting power of febe material are the conditions (especially the former) which influence heat. The body should not... | |
 | Edmund Alexander Parkes - 1878 - 798 หน้า
...countries, therefore, white or light-grey clothing should be chosen. In the shade, the effect of colour is not marked. The thickness, and the conducting power...double the power of cotton and linen. Absorption of Odours. — This partly depends on colour ; and Stark's observations show that the power of absorption... | |
| |
