The dream of energy abundance for more than half a century excites the consciousness of not only specialists, but also ordinary people. Every year, energy needs are growing, while the cost of fossil resources is also growing. And the time is drawing near when non-renewable resources run out. What then will mankind do, spoiled by the availability of electrical, thermal and other types of energy resources?

About two centuries ago, when the first wells opened access to the underground storerooms of hydrocarbon fuel, few people thought how quickly they could dry out. But the rampant use of fossil fuels, in addition to meeting human energy needs, led to monstrous environmental pollution and put humanity on the brink of survival. It is time to urgently seek a replacement for fossil raw materials, to use renewable energy sources.But you just have to raise your head, look at the Sun ...

The Tesla Supercharger network is a 480-volt DC charging station system designed to quickly charge electric car batteries made by Tesla Inc. All machine models, including Tesla Model S, Model 3 and Model X, can quickly restore the life of their traction batteries, thanks to these fast charging stations.

The network began to be built in 2012, and as of the first half of 2018, there were already about 10,000 chargers in about 1250 stations in the world. The very idea of ​​the ubiquitous introduction of Tesla Supercharger charging stations was born in the company after their very first idea was not asked - “quick battery change”, which turned out to be unclaimed and unprofitable. Station chargers built using the patented direct current technology, during charging, can provide power up to 120 kW per one electric car ...

Experiments in order to find the answer to the question of whether electrons have an inert mass were carried out by scientists in the very beginning of the 20th century. These experiments helped the scientific community of that time to establish itself in accepting the fact that the electric current in metals is formed precisely by negatively charged particles - electrons, and not positively charged ions, as one might assume.

The first qualitative experiment, which illustrated that the charged particles forming the electric current in metals precisely possess mass, was carried out by scientists (then the Russian Empire) Leonid Isaakovich Mandelstam and Nikolai Dmitrievich Papaleksi, this took place in 1913. Three years later, in 1916, American physicists Richard Tolman and Thomas Stewart conducted a more accurate experiment, which in their work not only showed that the electron has a mass in a metal, but also measured it quite accurately ...

Mark Hendershot's father, Leicester Hendershot, was an inventor. He has succeeded more than once in his many attempts to create practical things. Lester made electronic toys, and even sold some of his ideas to small industries. But his main idea was so revolutionary that it confused the country's largest scientists, because they still could not substantiate it. And if this idea were improved, then it would eliminate the need for many utilities, completely changing most of the concepts that were relevant at that time.

The first invention of Lester Hendershot from this area was called the “motor” in newspapers, but in fact it was a generator powered by the Earth’s magnetic field.Later models created enough electricity to power a 120 volt light bulb and a desktop radio at the same time. The inventor’s son witnessed this energy ...

Surviving the aftermath of World War II, Britain entered into a massive housing restructuring program, as many houses were simply destroyed as a result of the war. An acute shortage of copper forced material to be saved, and engineers had to come up with a wiring diagram that would allow the use of the available copper in the most optimal cost-effective way. Moreover, it was necessary to obtain wiring for normal operation with 13-amp sockets equipped with fuses.

BS1363 sockets and plugs with a fuse with rectangular contacts were then a popular unified solution, and a wiring diagram was developed for them from 1942 to 1947. So the ring wiring was developed, allowing the connection of a pair of electric heaters with a capacity of 3 kW each, in any of two places in the house, and allowing ...

The dynamos in the century before last began to be called direct current generators, the first industrial generators that were later replaced by alternating current generators suitable for conversion by transformers, and extremely convenient for long-distance transmission with little loss.

Today, the word "dynamo", as a rule, means small bicycle generators (for headlights) or hand generators (for tourist flashlights). As for industrial generators, today all this is alternating current generators. Let us, however, recall how the first dynamos developed and improved. The first model of a direct current generator, or unipolar dynamo, was proposed back in 1832 by Michael Faraday, when he only discovered the phenomenon of electromagnetic induction. It was the so-called "Faraday disk" ...

They are called free energy machines or simply perpetual motion machines ... Since the time when mankind put electricity to its service, the tireless minds of inventors have been looking for a brilliant solution - a source of free energy without the need for any kind of fuel. What can I say, historians have always found technical sketches of “perpetual motion machines”.

Here and there, now more often than in ancient times, one can find projects of “perpetual motion machines”. Let’s take a closer look at this problem and see what does exist and what it actually is. Educated people are well aware that the perpetual motion machine cannot work in principle, this does not need to be proved. But since the debate does not subside in any way, this requires attention. The eternal engine, if it were a real device, would violate the laws of thermodynamics, which are actually indestructible ...

In October 1975, California inventor Robert Alexander introduced the public to an advanced drive for a car. According to the inventor, this electric drive was supposed to save car owners from the need to use combustible fuel, from unnecessary noise, and from the need to constantly recharge the batteries.

The experts who arrived at the demonstration were very puzzled, because it seemed that the energy comes from "nothing." However, the car drove easily without fuel at a speed of 36 miles per hour. To experts' doubts, the inventor replied that the car was driving, and she did not care about their arguments. The initial power was provided by a converted electric motor of 7/8 horsepower.The electric motor was redone so that 12 volts were obtained at its output, otherwise the output power would be too large ...