Korean experts have made an ultra-thin flexible battery. This invention in the near future may lead to the emergence of "folding" devices with a large display that can be folded and put in your pocket, or, for example, to the appearance of "television" wallpaper with a touch display.

It’s no secret that the relatively inconvenient use of portable electronics is the relatively small display size. In the final analysis, there is always a rational size limit: the device should be comfortable to carry. However, devices that can be rolled up into a tube are, of course, a completely different story. A couple of years have passed since the time when the tablets appeared. But since then, the portable electronics industry has not demonstrated anything fresh in principle, except for cosmetic configurations and capacity building. Maybe the latest revolution in the market will be ...

Vortex heat generators are installations that allow you to receive thermal energy in special devices by converting electrical energy.

The history of the creation of the first vortex heat generators dates back to the first third of the twentieth century, when the French engineer Joseph Rank encountered an unexpected effect, exploring the properties of an artificially created vortex in the device he developed - a vortex tube. The essence of the observed effect was that at the exit of the vortex tube a separation of the compressed air flow into a warm and cold stream was observed.

Research in this area was continued by the German inventor Robert Hillsch, who in the forties of the last century improved the design of the Rank vortex tube, achieving an increase in the temperature difference of the two air flows at the outlet of the pipe. However, both Rank and Hilsch failed to theoretically substantiate the observed effect ...

Overview of portable chargers with prices, a detailed description of each charging method in the field, advantages and disadvantages, models.

Technological progress, which presented us with wonderful and sweet things — cellular communications, mobile Internet and GPS navigation, putting them all together in a magic box called a smartphone or mobile phone, puzzled us with such an urgent problem as battery charging.

Of course, this is a bit of a sorrow - not sorrow if we are at home and a trouble-free outlet is at hand. But what about the one who is on the way? Especially in the woods, on a hike, fishing, on a deserted track or in an unknown country where no one understands your language and wonder at the color of your skin. The question of how you ended up in an unknown country will be left to your conscience, but now our goal is to be in touch in any situation! The most radical way to solve the problem is with a spare internal battery ...

The fireplace is always the center of the home, giving it both a special charm and the warmth of a real, living fire. Nevertheless, it is not possible to install a traditional fireplace model in any home, since a complex technical construction requires special devices (chimney, additional foundation, etc.). A classic fireplace can be replaced by an electric fireplace that can decorate every home or apartment.

Electric fireplaces have many advantages. Among them: there is no need to build a chimney and make other special connections, the picturesque flame effect creates a special atmosphere that promotes relaxation. In the warm season, you can enjoy playing the flames by turning off the heating mode.In winter, an electric fireplace is able to effectively heat a room up to 15 sq.m. Electric fireplace is economical to use. It does not require a gas connection, does not need fuel ...

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 the 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. ...

Currently, wind energy is undergoing a rebirth. The thing is that before the energy produced by windmills was more expensive than it was sold to the population and enterprises from the Unified Energy System of the Soviet Union. In the West and in the rest of the world there was something similar. And all because the wind systems were ineffective.

Now much has changed: durable and cheap plastics and other materials have appeared that are more suitable for large windmills; there are new types of permanent magnet generators, and other developments that allow more efficient conversion of wind into electricity; new electronic and electrical systems for controlling windmill systems have appeared without the constant participation of humans; fuel has become more expensive: oil, gas, coal, fuel oil. And it became expensive to use: they need to be cleaned after combustion, disposed of so that it does not get into the atmosphere, land and water bodies ...

They will not need to be brought in frosts at night in the heat. They will be much cheaper than ordinary ones, because plastic is cheaper than non-ferrous metals. Their service life will exceed the life of the machine itself. They will be charged from electric motors, from energy recovery during braking, from stationary energy sources.

These are inertioids, or flywheels. They store energy and then give them to consumers as needed. With a large flywheel and internal combustion engine is not needed. Energy can also be stored at power stations, with powerful electric motors driving one or more flywheels. They are in a sealed airless space, and are suspended on powerful magnets. They are called super-flywheels, since they store energy thousands of times more than ordinary flywheels. They were invented 50 years ago by the Russian scientist N. Gulia, but they were not used en masse. Only a few artisanal developments ...