It is clear that an inverter air conditioner differs from a non-inverter air conditioner by the presence of this very inverter, but what exactly is the difference? How does the presence or absence of ..
What does service include and what is it for? How often should it be done? These are the most common questions. Service maintenance is checking the operation of devices, cleaning, lubricating, replaci..
Water treatment can be domestic, industrial and semi-industrial. A fair amount of water treatment is carried out by official institutions and water supply companies - "Vodokanal" or others. Primary tr..
The sun is the source of life on our planet, and also a source of endless energy. Solar panels and collectors are actively used in space and on Earth. So, all spacecraft operate on solar batteries, an..
Wind energy is derived from solar energy. The wind occurs due to the temperature difference: some piece of land warms up better, and some worse. The heated air rises up, and the cold air descends. In ..