Ventilation

More articles on this topic: How to make the house fresh, warm and dry, without drafts and dust? In private homes, a natural ventilation system has become widespread, in which the movement of air is determined by the temperature difference between

LECTURE on the academic discipline "Heat and mass transfer equipment of enterprises" (for the 200__ curriculum) Lesson No. 26. Heat exchangers - heat exchangers. Designs, principle of operation Developed by: Ph.D., Associate Professor Kostyleva E.E. Discussed at a department meeting

TOTAL In this master class you will find detailed patterns for sewing patchwork pillows with your own hands, with detailed photographs. In addition to the usual tools for patchwork sewing, you will also need a ruler with 30 or 60 divisions on it. Before you start, please note

Different situations happen in life, sometimes it is not possible to repair a TV for 500,000 rubles. with the help of a master. Or, sometimes it’s easier, cheaper, faster to buy a new TV than to pay for the expensive service of a TV technician who could repair

Choosing a durable and comfortable wooden bed in a store can sometimes be difficult. Often in such products, half of the parts are made of fragile chipboard or an incomprehensible Chinese alloy, so the quality of such furnishings does not always match

In houses and apartments of more than one floor, it is impossible to do without a staircase. But it happens that there is very little free space, and you really need to climb up. In this case, a simple but stable spiral staircase can help. Some models are played out in modern times

To build a house, you need to have markings. Only if you have it will you be able to build the structure correctly, without worrying that it will be skewed and will differ from the plan that you drew in your head or even on paper.

The most popular dual channel operational amplifier is LM358, LM358N. The opamp belongs to the LM158, LM158A, LM258, LM258A, LM2904, LM2904V series. It has many switching circuits, analogues and datasheets. LM358 and LM358N chips are identical in parameters and from

When a car sits idle for a long time, you need to start it at least once a month. The battery supplies the car with electricity well for 4-5 years, then it is not able to properly supply the car with electricity, and also

Few people will probably remember how they used to rewind the electricity meter readings. They did this with a transformer, which needed to be grounded. The ground electrode was usually a battery or other utility. It was very life-threatening. Now