Have you pondered about why the sky is blue?
Visible Light from the sun seems white but it is made of spectrum of colours quasi the colours of a rainbow travelling through space as the visible white light we see at diurnal hour. Visible white light from the Sun travels in waves with some of the waves travelling as short or shorter choppy waves unlike others that travels as long lazy waves.
Withal, the spectrum of visible white light proceeding from the sun contains “red; ultra-violet; green; yellow; blue; indigo; and violet”, each with a unique wavelength that differs from all others colours within the spectrum of colours. However, “blue light waves” in the spectrum have shorter wavelength than others ergo, is easily scattered as molecules by slight particles in space when interrupted.
Light travels in a straight line but when interrupted or disturbed it does one of these:
1. Reflects;
2. Bends/Refracts; or
3. Scatters like molecules of gases.
With these properties of light withal, once visible white light from the sun is interrupted, “Blue Light waves having a shorter wave-length than the other light waves”, are scattered like molecules of gases more than the others in the sky when it meets with gas particles or molecules [obstacles]. Hence the sky becomes blue because blue light wave, having the smallest wavelength, is scattered and distributed more by any obstructing particle across the heaven like molecules of gases.
Phenonmena as this, are not preternatural because science can explain How.
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