The search for alternative sources of electricity has become widespread in recent decades. The threat of depletion of fossil energy resources has stimulated research on the use of renewable resources: energy from air, water, and geothermal heat.

The army of inventors joined the scientists working in the field of alternative energy, and today they “flooded” the information space with projects for obtaining “free” energy. One of the most popular areas of their development is the use of atmospheric electricity. Observing the violence of the elements during thunderstorms, there is a great temptation to tame the electric forces of the Earth, to use them for the benefit of man. Let's try to assess how realistic it is to get close to these forces and use them in practice. To begin with, we will answer the question of whether the Earth's electricity reserves are really large? ...

The article discusses the reasons for the weak interest of enterprises and the population in the transition to multi-tariff, time-differentiated metering of electricity.

We rarely think that electricity is the most perishable product known to mankind today. If it is not used immediately, then in a moment it disappears, and with it the uselessly burned gas, coal, heat of TVELs at nuclear power plants. Therefore, a balanced energy consumption is the main task and a headache for energy.

It is possible to compensate for seasonal variations in energy consumption by power plants. But to smooth the diurnal fluctuations - such a task for generating stations is practically impossible. This problem must be solved by consumers: enterprises and the population. To this end, in the CIS countries for many years trying to introduce electricity metering at tariffs ...

If we consider a direct current, then it can not always be perfectly constant: the voltage at the source output may depend on the load or on the degree of discharge of the battery or galvanic battery. Even with a constant stabilized voltage, the current in the external circuit depends on the load, which confirms Ohm's law. It turns out that this is also not quite a constant current, but such a current cannot be called variable either, since it does not change direction.

A variable is usually called a voltage or current, the direction and magnitude of which does not change under the influence of external factors, such as a load, but is completely "independent": this is how the generator generates it. In addition, these changes should be periodic, i.e. repeating over a certain period of time called a period. If the voltage or current changes anyhow, without worrying about the frequency and other regularities, such a signal is called noise ...

The issue of saving electricity and money to pay for it is becoming increasingly acute, especially with the introduction of social norms for electricity consumption. Therefore, citizens, homeowners and business leaders have to look for reserves to reduce electricity consumption.

However, it is impossible to completely abandon the use of energy-intensive electrical appliances - the traffic of which creates the bulk of the electricity bill. Therefore, you have to compromise in order to spend less energy (money) and maintain an acceptable level of comfort. However, one cannot deceive physics, and they have not yet learned how to get the energy of their air. And, therefore, the law of conservation of energy must be strictly observed.This means that if energy has increased in one place, then in some other place it has decreased by the same value. More recently, we talked about a new energy-saving device. ...

Why is this required? Most split systems are designed to operate at an outdoor temperature of -5º C. And this is in the best case, moreover, in heating mode.

As experience shows, nowadays household air conditioners are very often used for cooling in winter in server rooms as well as in technical rooms where working equipment is located. As a rule, it should work smoothly, in any weather. Very often they are cooled by air conditioning in offices - after starting central heating, the rooms become stuffy, thermostats on heating batteries are not everywhere, or they are not used, just turning on the air conditioning.

Why can't household air conditioning work in winter? There are several problems that get in the way of using an air conditioner in the cold. Starting a cold compressor ...

Putting an electric panel on the street is not such an absurd idea as it might seem. The reasons for this technical solution are as follows:

Energy sales organizations often insist that the meter for energy consumption and, accordingly, the introductory home electrical panel, be located within the reach of the inspector. This is especially true for large suburban residences, where the owners can relatively easily “hide” in the house an additional input past the counter with known goals. On the other hand, the shield on the street support is clearly visible from all sides and does not cause the inspector any doubt or suspicion.

In the same suburban residence, an opening electric shield can also be very impressive. And the desire to save on space and take out at least a metering device and input ...

In the article "Capacitors: purpose, device, principle of action" was talked about electrolytic capacitors. They are mainly used in DC circuits, as filter capacities in rectifiers. Also, they can not do without decoupling power supply circuits of transistor cascades, stabilizers and transistor filters. Moreover, as was said in the article, they do not allow direct current, but do not want to work on alternating current.

For AC circuits, non-polar capacitors exist, and many of their types indicate that the operating conditions are very diverse. In those cases when high stability of parameters is required, and the frequency is high enough, air and ceramic capacitors are used. The parameters of such capacitors are subject to increased requirements ...

Imagine: they offer you a fairly simple equipment that quickly mounts and processes a gas pipe with a magnetic field. As a result, when burning, you get savings from 25 to 40% of gas. After reading such information, the leaders and energy companies of natural gas-consuming enterprises will lay their hearts for such equipment. The cost of this energy is now not small and continues to grow.

As always in such cases, information on the physicochemical processes is scarce and contradictory. There is a link to the patent of Ukraine, an illiterate description of the processes occurring in the gas, and a standard clause on the know-how of the manufacturer. The price of CIS patents is known nowadays: you can patent anything, just pay for registration and support of the patent. The gag in the description of gas processing technological processes can also be blamed on zealous marketers ...