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Stairs
of San Francisco
Outdoor Stairways
As A City Feature
Stairs are a structure designed to bridge a large vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by stepping from one to another step in turn. [from wikipedia] Rainbow Stairs |
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Rainbow Stairs, As An External Staircase, Between Sanchez and Noe on 19th Street, San Francisco, California A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the Sun.[from wikipedia]
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