Nanogenrators begin a new era in the life of mankind and can generate electricity from any kind of micro-oscillations. It is enough to squeeze the nanogenerator in the fingers and an electric current will begin to be generated.

Back in 2011, a nanogenerator was developed that converts oscillation in the human body into electrical energy. Something similar was created before, but the model turned out to be more powerful than its competitors 1,000 times. Scientists decided to introduce the generator on the market. In the same year, five nano-generators, having a size of a quarter of a mailing label, began to generate a current of one microamp, having a voltage of 3 V, which is equal to the voltage created by two AA batteries. The new generator began to fuel the liquid crystal screens of calculators, and even transmit wireless signals. It is alleged that the new device is quite the slightest vibration ...

Despite the fact that bilateral solar cells have been popular since the 1960s, their commercial use in photovoltaic projects is something relatively new. In the past, the use of bilateral solar cells made no sense in terms of costs, but now this has changed dramatically.

What are bilateral solar cells. Bilateral solar cells are cells with two-sided photosensitivity. Their productivity is the same on both sides, and the efficiency reaches 22%. As a rule, monocrystalline.

While the solar panel is installed on the ground or on the tracker system, it accumulates light reflected from the ground. If installed vertically, the solar battery will accumulate light from two sides, while the sun moves from east to west. From an economic point of view, we are close to using reflective structures on a large scale. ...

Warm floors are becoming extremely popular, despite its relatively high cost. The heat coming from the floor surface not only warms the air in the room, but also gives a feeling of comfort, allows you to walk around the house without shoes and, without any exaggeration, creates an atmosphere of home comfort. This is especially true for rooms with cold tiled flooring - bathrooms, kitchens, corridors. But even laminate or linoleum more often hide a film infrared warm floor underneath.

Installation of underfloor heating is not technically particularly difficult, but malfunctions of such a floor can bring a real headache. The floor is mounted, it is possible that it is even poured with a concrete screed, and suddenly it turns out that it does not work. What to do? Let's try to understand this situation. First you need to decide on the device of the warm floor. It generally consists of the following elements ...

Nowadays, one private house does not do without electricity. The correct installation of electrical wiring in a private house is a complex process, which includes several mandatory steps.

This is developing an idea, determining the approaches and technical solutions that will be used, creating a project, connecting a private house to the power grid, choosing the necessary electrical products and materials, wires and cables, protection devices, installing the ground loop, completing and installing the input electrical panel, laying the wiring, correct contact connections, installation of sockets and switches, connection of various household electrical appliances.

This section contains the best articles on the site bgv.electricianexp.com, by reading which you can technically correctly electrify a private house ...

Recently, very many began to face the problem of frequent burnout of incandescent lamps in their apartments. Incandescent lamps should last one thousand hours, but in reality they burn out much faster. And if ten years ago it was possible to put up with this bad phenomenon, since the lamps cost a penny, now it is already becoming a real problem. Prices for incandescent lamps are rising, and their life, alas, is constantly decreasing.

ABOUTThe main reasons for the rapid failure of incandescent lamps. Poor quality lamps. The quality of incandescent lamps of domestic production leaves much to be desired. For some reason, the most powerful small lamps burn out (up to 60W), just the ones that are most often used in lighting in everyday life). All domestic plants are approximately the same in quality. Of all domestic enterprises, the highest quality is considered ...

In this article, we will consider a device that is sold in electrical goods stores as a dimmer control. It's about a dimmer. The name "dimmer" comes from the English verb "to dim" - to darken, become dull. In other words, a dimmer can adjust the brightness of the lamp. Moreover, it is remarkable that the power consumption decreases proportionally.

The simplest dimmers have one rotary knob for adjustment, and two terminals for connection, and are used to adjust the brightness of incandescent and halogen lamps. Recently, dimmers have also appeared to adjust the brightness of fluorescent lamps.

Previously, rheostats whose power was not less than the load power were used to adjust the brightness of incandescent lamps. Moreover, when lowering the brightness, the remaining power was not saved in any way, but was dissipated useless ...

Your household appliances, faithfully served before that suddenly stopped working? If we are talking about something inexpensive (a radio, a hairdryer, an electric kettle, a charger for the phone), then you have a choice - go buy a new one, or try to reanimate your household appliance on your own.

Trying to repair a broken household appliance is definitely worth it, as it will not be any worse, and extra money does not happen in principle. To begin with, you should arm yourself with a minimal gentleman's set consisting of a screwdriver, a pliers, a multimeter and a soldering iron.

Whatever you repair, everything will happen according to the same scheme, consisting of the following steps. Use a screwdriver of suitable length and width to unscrew the screws that connect the case. It’s good if there is a place nearby where to put them ...

Around compact luminescent, so-called. energy-saving lamps in recent years there have been many rumors and myths. In this article, we will try to dispel some of the most common myths.

The first myth. Energy-saving lamps emit UV rays that are harmful to health.

It is known that light has on the human body affects the metabolism in the body, physical development and human health. The most useful in this regard is daylight (light from the sun). In artificial lighting when using incandescent lamps (thermal light sources), ultraviolet radiation is completely absent.

Ultraviolet radiation in the volume that we receive from energy-saving lamps is not only not harmful, but even very useful for the human body. It relieves fatigue, eliminates depression ...

I bring to your attention another "entry page" on the site with links to selected articles. This time, this is a selection of articles on such an interesting and very demanded topic as "Lighting control in the house."

The rapid development of lighting and electronics in recent years has led to the creation of not only a large number of new types of light sources, but also various devices that control the light sources. And if until recently, only conventional switches were used to control the lighting in an apartment or house, now now one list of all the possible all lighting control elements will take more than one line.

I hope that this page will help site visitors better navigate the variety of all kinds of technical solutions that are used to control and automate home lighting ...

How to properly repair the apartment wiring.

In our long-suffering country, people do not have enough money to buy new housing. Secondary market of apartments, i.e. Apartments "B.U." becoming more popular.

In the last century, when this housing was built, they counted on the energy consumption of an apartment of 1-2 kW, and now it can easily reach 10 kW. Almost everyone has a washing machine, microwave oven, iron, hair dryer, vacuum cleaner, electric toaster, electric grill, etc. Most of these devices easily consume 1-2 kW, but they can be turned on at the same time!

But how to start repairing electrical wiring? There are certain rules for this. They will help you save time, money and health ...

As the size of the site bgv.electricianexp.com is becoming more and more every day, there are many new articles, it is quite difficult for new visitors to immediately navigate and review at a time everything already written and previously posted.

I really want to draw the attention of all visitors to individual articles that were posted on the site earlier. In order to not have to search for the necessary information for a long time, I’ll make a few “input pages” with links to the most interesting and useful articles on specific topics.

The first such page will be called "Useful electronic homemade products." Here we consider simple electronic circuits that are available for implementation to people of any level of training. All information in the articles is presented in a very accessible form and in the amount necessary for practical work ...

Today in the market of security systems there is a wide variety of alarms that protect an apartment, private home or office. There are simply “chants” - systems that emit alarming sound signals, are based on GSM — send a message or ring the alarm to the owners. You can also see alarms with a built-in telephone line, a built-in telephone line and a GSM module at the same time.

According to the type of information transmission, signaling is divided into wired and wireless. Autonomous alarms work independently of other systems, remote alarms are connected to the central console, to which an alarm signal is received, as a result of which a response group can be sent to the object.

Depending on your wishes, you can choose the desired alarm, but which one can you set yourself? It already depends on the level of your knowledge ...