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The sky appears blue to the human eye as the short waves of blue light are scattered more than the other colours in the spectrum, making the blue light more visible.
The classification of clouds into types was first proposed by Luke Howard in 1802 and we largely use the same system today splitting clouds into three main types - stratus, cumulus and cirrus.
Weather fronts mark the boundary or transition zone between two air masses and have an important impact upon the weather.
There is no doubt that if your child is kept at the right temperature, it can have a positive effect on the quality and safety of their sleep.
Please note that when changing units, only forecasts and maps will be affected.