Scientists have discovered that thin layers of rust generate electricity from the flowing water 2 октября, 2021

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A recent study showed that electricity produces electricity in ultric iron layers when salted water flows. This effect can be used as a new method of production of electricity in an already existing infrastructure or to develop new solutions.

The phenomenon opened by researchers from the California Institute of Technology and the North-West University is not related to chemical reactions, but is based on the conversion of kinetic energy flowing salted water into electricity. Earlier, this effect was already observed in graphene films and it was found that the transformation efficiency is about 30%.

Since it is quite difficult to produce a sufficient amount of two-dimensional material for use on an industrial scale, then scientists began to study more affordable alternatives. As a result, they found that iron oxide films are also suitable, while it is easier to create and scaling.

Although the rust appears on the iron alloys itself, but to obtain a solid layer on a thin sheet of metal, the team used physical precipitation from the steam phase. This method provides for the conversion of solid materials into pairs, which condenses on the desired surface. As a result, they created a layer of iron oxide with a thickness of 10 nm, which is about 10 thousand times thinner of the human hair.

When they took the iron sheet coated with rust, and merged with solutions of salt water with different concentrations, they found that several dozen malelvolt and several microampers per CM2 were generated in it. When using a sheet of 10 m2, it will be able to produce several kilowatt energy per hour, which is enough to provide 1-2 ordinary apartments.

The mechanism for generating electricity through an electrokinetic effect is complicated and includes ion adsorption and desorption. But, in fact, it works as follows: ions present in salt water attract electrons in the gland under the rust layer. Ions in water move along with it and due to the strength of attraction they are pulled by electrons in the hardware, generating an electric current.

Researchers say that this phenomenon can be effectively used in places where there are moving saline solutions. Options include the use of tide energy, or a system of passive conversion of wave energy on buoy or other objects in the sea or ocean. They even consider the possibility of using the movement of salt water in the human veins to power the implants.

Previously, we also reported improvement

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Amazon integrates blockchain in his advertising business 2 октября, 2021

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One of the largest technological companies in the world specializing in e-commerce opened the vacancy of a programmer engineer who will have to join the team of Fintech in advertising.

According to the description of job responsibilities in the announcement, the new unit will develop accounts for invoice and reconciliation based on blockchain, which will ensure transparency of transnational financial data.

It is not yet known which distributed network will use the company to implement the project. Today, Amazon launched a Quantum Ledger private blockchain, and also offers a connection to Ethereum and Hyperledger Fabric.

Recall that the world’s largest wholesale and retail network Walmart has recently filed

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Walmart drones will use blockchain to communicate and coordinate 2 октября, 2021

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The world’s largest wholesale and retail network Walmart wants to patent a communication system and coordination of unmanned aerial vehicles based on blockchain technology.

According to the submitted application, the blockchain system will be used to transmit different data between drones, including their identification numbers, height, speed and flight routes, battery charge level and load capacity. Information can be distributed depending on the current Location of the CAP.

Developers indicate that the blockchain register allows you to store information of any format from various media, for example, a large list of commands of different types, navigation data and cards. This allows the use of a single software profile on different drones.

The technology also provides data encryption, which increases the reliability of communication and coordination.

The blockchain is increasingly integrated into the transport system and smart devices. Recently, Commerzbank in conjunction with Daimler has developed

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The new 110-ton dump truck never needs to fill or charge 2 октября, 2021

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In the Swiss career, a 110-ton electrical dump truck is operating, which should never be charged, because it accumulates enough energy during the descent with the cargo.

The world’s largest electric vehicle is used to transport lime and frozen soil from the mountain side to a cement plant near Bile. However, it stands out not because of its sizes, but thanks to a unique technology of nutrition, which allows it to work continuously without consuming energy from external sources.

The bottom line is that the EDUMPER dump truck is 30 tons by a 13-degree lift and takes 65 tons of ore. Then, when descending down the slope with more than doubled weight, the recuperative braking system of the giant collects enough energy to fully recover the battery charge required for lifting.

Every day, the dump truck makes about 20 trips and for the year produces about 77 MWC of electricity for the year, which saves from 50,000 to 100,000 liters of fuel during this time, compared with a typical diesel analogue.

EDUMPER was developed on the basis of the Komatsu HB 605-7 platform with two-dimensional wheels and body size 9.1×4,34х4.34 m. The electrical dispenser is equipped with a 600 kW battery with a mass of 1982 kg, a motor for 982 kW and can accelerate up to 40 km / h.

Previously, we also reported on the development of an automated system of following, which allows one person effectively

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Bitcoin network consumes twice as much electricity than Ireland 2 октября, 2021

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According to the report of the International Energy Agency, for the first half of the year, the Bitcoin network consumes 29 TDCs, which already exceeds the annual energy consumption of Ireland (26 TDCH).

The main reason for increasing the consumption of electricity, researchers consider the growth of the cryptocurrency rate, which increased activity

Based on this data, the Agency estimated that Bitcoin is responsible for 0.03-0.06% of world carbon dioxide emissions associated with energy, which is equivalent to 10-20 megatons CO2.

At the same time, the report authors also indicate that mining is most common in regions with cheap, renewable electricity. Referring to other studies, they write that about 76% of the energy consumed by the cryptocurrency network can be manufactured using electricity from hydroelectric power plants, solar farms, wind generator and other environmentally friendly sources. Therefore, they took into account this in their calculation of emissions.

According to a previously published study, the Bitcoin mining is spent almost in

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Automatic following technology will allow the driver to drive two trucks at the same time 2 октября, 2021

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Peloton has developed an automated tracking system that allows one person to effectively manage two trucks at the same time.

Many automakers and government institutions explore various options for exploring unmanned vehicles. In addition to automation and savings on drivers, the possibility of forming autonomous columns from trucks will reduce the distance between them, reducing the congestion, accidents and fuel consumption, including by the aerodynamic advantage of the pursuers.

However, while the technology remains experimental, the California startup offers an alternative solution for road carriers. The AUTOMATED FOLLOW feature recently developed by Peloton allows the truck driver to associate its vehicle with another to simultaneously control both.

For this, the company establishes a radar braking system and special software. The unmanned truck moves ahead of the vehicle with a person, completely copying its actions (steering, acceleration and braking).

Representatives of PeloTon say that technology allows you to double the labor productivity of the drivers and to reduce fuel consumption by 7%. Now the company cooperates with a limited number of customers and is still unknown when it plans to bring the product to the market, because it continues to conduct joint tests.

Unmanned control technology will soon be applied not only in automotive, but also sea transport. About this and other shipbuilding trends in the next decade you can learn from our

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Allianz will use blockchain to optimize insurance payments 2 октября, 2021

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One of the largest insurance companies in the world Allianz SE develops for its corporate clients a blockchain-based token, which will help optimize cross-border payments.

International Holding expects a future ecosystem to make it easy to carry out transparent and instantaneous money transfers for various types of insurance payments.

Representatives of Allianz reported that the project is still on the experimental stage, but the basic infrastructure has already been formed and tested. Further, the company plans to work out the mechanism for the implementation of electronic transfers using tokens in a limited volume and for a short period of time to confirm the hypothesis.

Earlier, the management of the insurance company did not hide his skeptic attitude towards cryptocurrency, but studied the potential of their use in his business.

The largest global companies continue to integrate the blockchain in various areas of their activities. Recently, Amazon reported that it plans to use technology for accommodation and

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Charlie Lee explained the reason for the lack of Lightcoin updates 2 октября, 2021

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The founder of LiteCoin Charlie Lee explained the reason for the lack of updates of the protocol for a long time.

Recently, the cryptocurrency team began to accuse in idle and even refusing to further develop the project. However, whether they denied these rumors and called a number of reasons for which the community could have the impression.

First of all, the lack of rapid activity is that most of the updates were originally developed for Bitcoin, therefore they are integrated into lightcoins with a certain delay. Charles explained that the last update was released in May of this year, most of the Committed Committed on GitHub dated 2018. Adding that, it seems, the developers took annual leave.

The second reason is that the cryptocurrency team does not work in the main branch of GitHub. This decision is due to the need to constantly recheck the unrealized code, which may result in incorrect assembly users.

According to Charlie Lee, for the eight-year history of Lightcine, the project had only a few major participants, and the leading developer Adrian Gallacher is now actively working on the version of the network 0.18.1. He also said that in recent times he personally also paid more attention to popularizing cryptocurrency, and not its technical component, but now it will return to this issue.

Recall that part of the miners turned off from Lightcoin’s network due to

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Germany will start licensing cryptogusiness from next year 2 октября, 2021

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From January 1, 2020, new rules to combat money laundering will begin to operate in Germany, according to which any business related to cryptocurrency will be obliged to obtain a license of the Federal Financial Supervision.

First of all, the innovation will affect the stock exchange and storage services, which will need to prove that their activities meet the stringent requirements. This is due to the fact that from next year in Germany, cryptocurrencies will be equated with financial instruments falling under the jurisdiction of the regulator.

The Germans ambiguously reacted such changes. According to Frank Sheffler, a member of the Free Democratic Party, approving the new rules, the government oppresses innovation, forcing the representatives of the Crypinustry to move to other countries of the European Union.

On the other hand, local lawyers welcome this decision, saying that the regulation and openness of the industry will ensure its further growth. According to Christian Schmis, the partner of the law firm Hengeler Mueller, institutional investors have not yet accepted the technology because of the unreliable legal framework.

While European countries establish an increasingly tightest framework for cryptogusiness, Asian states continue to create favorable conditions for its development. One example is Iran, which recently

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The first personal sound projector was invented 2 октября, 2021

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Engineers demonstrated the world’s first sound projector, which can track the movement of a particular person and create a sound sphere next to it to transfer individual audio messages.

The invention was presented at the International Technological Conference and the SigGraph 2019 exhibition. To create it, researchers from Sussek University used thin acoustic lenses made from special materials smaller than the length of the sound wave, and also used the principles of optical design.

During operation, the device uses integrated software to recognize persons, which is necessary to control the acoustic telescope and focusing sound on a moving object. The system tracks a person using a built-in inexpensive webcam and determines the distance between two acoustic lenses, creating a sound sphere with a diameter of about 6 cm in front of a person, reacting to its movement.

The technology is designed in such a way that it requires a user consent for its operation. This avoids obsessive and unwanted use.

According to engineers, in the manufacture of the projector, acoustic lenses were used, which can be printed on a 3D printer for $ 120 and the usual webcam for $ 12. They believe that with the help of technology, you can create a variety of useful devices, for example, to transfer personalized emergency messages in a crowd or sound equivalent of special effects without headphones.

The research team is currently working on the expansion of the system capabilities. They want to do so that the projector can simultaneously work in several directions and octaves.

Recently, scientists also presented new

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