Dew

Early in the morning, before the sun had not yet risen high in the clear sky, the dew shimmering rainbow colors. Do not miss an opportunity to enjoy this beautiful game of multi-colored rays.

Early in the morning, before the sun had not yet risen high in the clear sky, the dew shimmering rainbow colors

Many people mistakenly think that the dew drops falling from the sky like rain. In fact, the dew does not fall, and slowly sits down on cold objects, standing out from the air. Due to the cooling air mass water vapor condenses on the objects near the ground and turns into water drops. This is usually at night. On leaves with dew it collects in droplets that easily roll off when shaken. Rosa does not spread on the sheet with a thin layer of water because the skin is covered with a sheet of waxy substance that is not wetted by water. It is very important for plant life: if dew or raindrops flowed around the sheet, the water would block those tiny holes in the skin of it, through which plants breathe. In some cases, the dew on the leaves of plants and brings harm: water balls are as incendiary glass, to collect the sun's rays and cause the plant to burn. Therefore, by the way, do not water the plants with water when the sunshine.

In the desert regions, the dew is an important source of moisture for vegetation. A sufficiently strong cooling of the lower layers of air occurs when after sunset the Earth's surface is rapidly cooled by means of thermal radiation. Favorable conditions for this are clear skies and surface coating, it is easy to give off heat, such as grass. Particularly strong dew formation occurs in tropical regions, where the air in the surface layer contains a lot of water vapor and by the intense night heat radiation of the earth cooled considerably. At temperatures below zero frost forms air temperature to which air must be cooled with this moisture content it to water vapor saturation reached is called the dew point.

Modern science has confirmed that the hour of the morning grass isolated huge variety of medicinal substances, so summer walking barefoot in the dew is very good for health.

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