Nice share. Thanks
Once a week Sue dips into her old English Oxford dictionary to pick a word on the page that it falls open at. The challenge is to post a photograph you like best to describe what that word means to you.
A rainbow is an optical and meteorological phenomenon that is caused byreflection, refraction and dispersion of light in water droplets resulting in aspectrum of light appearing in the sky. It takes the form of a multicolouredarc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
Rainbows can be full circles, however, the average observer sees only an arc formed by illuminated droplets above the ground, and centred on a line from the sun to the observer’s eye.
In a primary rainbow, the arc shows red on the outer part and violet on the inner side. This rainbow is caused by…
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