Why buy an inverter generator when conventional generators are cheaper? The answer is quite simple. The main advantage of inverter generators is that they work much quieter compared to conventional generators. Sound or noise produced by a generator is measured in decibels. Some of the quietest models of inverter generators "issue" about 50-55 decibels. Conventional generators of similar power will produce 65-70 dB.

A 10 dB increase in noise is perceived by us as a 5-7-fold increase in sound. Therefore, the generator “issuing” 70 decibels will be 10 times louder compared to another generator with a “productivity” of 60 decibels. Modern inverter generators of the latest generation are barely audible from a distance of 6-7 meters. This is a real benefit for those living in areas where noise is a problem. or when traveling to nature, to a park where the permissible noise level should be in the range of 40-50 dB…

Since 2011, Harald Haas, a specialist in optical wireless data transmission, a professor at the University of Edinburgh (Edinburgh, UK), has been seriously promoting a fundamentally new technology for wireless data transmission through flashing LED lights. Then most university professors decided that the idea, of course, is interesting, but hardly realizable. And so, four years later, Haas nevertheless created the first router that works according to his concept.

The technology is called Li-Fi (light - light, fidelity - accuracy). The new router showed such amazing characteristics that it was 100 times faster than Wi-Fi, reaching in laboratory conditions a record data transfer rate of 224 Gb / s. Laboratory tests were conducted by the Estonian company Velmenni. Haas even supplied his first router with a solar battery to make access to the network autonomous ...

Traditionally, the wiring in residential and industrial premises is carried out in an open or hidden way inside building elements. The use of special plastic boxes allows you to increase electrical safety and improve the design of rooms with open wiring. They are always made with a flat base, which is intended for fastening to a flat surface of a building structure.

In order for the final work to be distinguished by an aesthetic appearance, to allow reliable operation of electricity and to be carried out with a minimum cost, four simple rules must be consistently followed: to think through the progress of its implementation and realize the plan on paper, to purchase the necessary number of components and tools, selecting them for specific specifications laying highways in the premises, apply line routes to building structures ...

A single-phase electric motor is called one that works from a two-wire AC network, represented by a phase and zero potential. The number of windings mounted in various designs of stators does not affect this definition. According to its technical device, an induction motor consists of a stator - a static, fixed part made by a housing with various electrical elements located on it and a rotor rotated by the forces of the electromagnetic field of the stator.

The mechanical connection of these two parts is made by rotation bearings, the inner rings of which are mounted on the fitted sockets of the rotor shaft, and the outer rings are mounted in protective side covers fixed to the stator. The rotor device for these models is the same as for all induction motors: on a steel shaft mounted magnetic circuit from burdened plates based on soft iron alloys ...

Not a single thorough repair, perhaps, can do without the use of a drill. Many installation work also often involves drilling holes. However, not everyone has a tool in use when the situation requires it.

Let's figure out what a drill is, what its functions are and what the technical characteristics of a drill can be, so that everyone can get a suitable tool if necessary, without overpaying for unnecessary excesses. So, a drill is a manual power tool, the main function of which is drilling holes. Drill holes can be drilled in plastic, in wood, in metal, and even in concrete, but not every drill is suitable for concrete, but we will talk about this later. A modern electric drill is a universal tool, because a drill can optionally be installed in a chuck, therefore, the drill is also suitable for grinding ...

In 2014, the startup company Roost introduced the Roost Smart Battery with a built-in Wi-Fi module, designed to permanently solve the problem of smoke detectors triggering when the battery is low, which has become a real nightmare for some homeowners.

The module with a 9-volt battery of the Krona type, costing $ 35, is simply inserted into a standard smoke or carbon monoxide detector, and in case of an emergency notifies the owner about it, sending him a message on the smartphone. Although the device performs only this one function, it copes with it with a bang.

The Roost Smart Battery doesn’t look pretentious, and you don’t need to, because when you install it in a smoke detector, you don’t have to look at it regularly. It looks like an ordinary Krona with standard terminals, its white case with blue ends is decorated ...

If you are reading this article, then you have probably already seen the convenience of using a portable generator. It doesn’t matter where you use it - outdoors to power small appliances or at home, as a backup source of electricity. But are you sure that the generator will work reliably exactly when you need it?

Maintenance is a very important part of operating an electric generator. Incorrect storage of a gasoline, diesel or gas generator can lead to difficult starting and improper operation of the generator engine. So, here are a few recommendations for maintaining the generator, following which you can be sure that the generator will start when you need it! The generator engine, like any other engine, requires timely maintenance, one of the main points of which is ...