What is dew?

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What is dew?

Even children know that it is customary to call dew the smallest particles of moisture, which are collected in small drops and deposited on plants, grass or soil. Dew forms in the early morning or in the evening with the onset of coolness.

Next, we consider what dew is, let's talk about different types of dew.

Dew on plants

Dew is formed in humid air. In order for the moisture contained in it to be transformed into the smallest particles of water and settled on the plants, the air temperature must reach a point called the "dew point". At the heart of the process of dew formation is condensation: the air is cooled, the water vapor condenses and turns into water droplets that settle on the ground. This is how the morning and spring dew is formed.

False dew

However, dew can be called not only accumulated particles of moisture, but also a fungal disease of plants. Such mildew refers to such dew. It is formed due to the multiplication of spore mycelium, which occurs on the surface of plants in the form of white bloom.After maturation of the spores of the fungus, tiny droplets of moisture are formed. Mycelium is able to capture not only plants, but also their fruits. These fungal spores are very dangerous for agriculture and can cause rotting of the crop. They fight mycelium with copper chloride, copper sulfate and various types of fertilizers.

Plant diseases also include oidium. This disease is also a white plaque. As a rule, oidium infects fruits of plants, for example, grapes.

It should be noted that dew can also be poisonous and used by many plants as a weapon. It should be noted that these are carnivorous plants. These include, for example, sundew. This flower is covered with a special sticky substance that looks like dew. Substances that are contained in this false dew, can attract insects, as they have an attractive effect. Touching it, the insect falls into a very dangerous trap: the enzymes contained in the liquid produced by the sundew begin to literally decompose the insect, the sticky substance prevents the insect from escaping, and it quickly dies.

Technical dew

Often, for the dew take small drops of moisture that are deposited on the windows or various surfaces. However, in science this phenomenon is considered to be ordinary air condensation. In air conditioners, the accumulated moisture is usually called condensate, although the mechanism of its formation exactly coincides with that in which ordinary morning dew is formed. It is worth making a reservation that, in essence, dew can be not only water, but also particles of another liquid. For example, in laboratories as a result of experiments with nitrogen, condensate is often formed, which is the smallest particles of nitrogen. Various refrigerants can also condense, forming technical dew.