As Long As The Sun Keeps Shining
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I had time. So I went out. I had a feeling I'd be good..... Dedicated to Barry Single.
'In the Dreamtime of Australian Aboriginal mythology, the rainbow snake is the deity governing water.'
- Canon 5D Mk II
- ISO 100, f8, 1/60, 33mm.
- Canon 17-40 f/4 L lens.
- Cokin p121s Grad.
- Contrast and Saturation in Lightroom 3.0.
A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines on to droplets of moisture in the Earth's atmosphere. It takes the form of a multicoloured arc, with red on the outer part of the arc and violet on the inner section.
A rainbow spans a continuous spectrum of colours; the distinct bands are an artifact of human colour vision. The most commonly cited and remembered sequence, in English, is Newton's sevenfold red, orange, yellow, green, blue, indigo and violet (popularly memorized by mnemonics like Roy G. Biv). Rainbows can be caused by other forms of water than rain, including mist, spray, and dew.
Rainbows can be observed whenever there are water drops in the air and sunlight shining from behind at a low altitude angle. The most spectacular rainbow displays happen when half the sky is still dark with raining clouds and the observer is at a spot with clear sky in the direction of the sun. The result is a luminous rainbow that contrasts with the darkened background.