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Cloud Annals @ NaturalResearch.org (Natural Research) (Site not responding. Last check: 2007-10-22) |
 | | Clouds reflect all visible wavelengths of light equally and are usually white, but they can appear grey or even fl if they are so thick or dense that sunlight cannot pass through. |
 | | As a cloud matures, the droplets may combine to produce larger droplets, which may themselves combine to form droplets large enough to fall as rain. |
 | | Red, orange, and pink clouds occur almost entirely at sunrise/sunset, and are the result of the scattering of sunlight by the atmosphere itself. |
| www.naturalresearch.org /encyclopedia/Cloud (1302 words) |