Tech Review SAI

Wednesday, 2 November 2022

Russia completed tests of a new nuclear-powered icebreaker

The Russian company Atomflot announced the completion of sea trials of a new nuclear-powered icebreaker being developed as part of the state project 22220.

“Sea trials of the new Russian nuclear icebreaker Ural, which is being developed as part of the state project 22220, have been completed,” the company said in a statement.

“The ship began the last stage of testing on October 14, and the tests were successful,” the message says.

And the Ural is the third nuclear-powered icebreaker developed by Russia as part of the 22220 project, and work on its development began in 2016, and it was first launched in May 2019.

As part of the mentioned project, Russia is developing ships as icebreakers capable of escorting ships and sea convoys from the Arctic regions, performing rescue operations and giving way to ships in waters with ice thickness up to 2.8 m.

These ships are equipped with autonomous nuclear power plants with a capacity of 60 megawatts, and their service life is 320,000 hours. The length of these ships is 173.3 m, width 34 m, height 15.2 m, and their displacement is equivalent to 33,500 m. tons.

Source: Weapons of Russia

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Elon Musk: $ 8 per month for a verified Twitter account.

Elon Musk, the new owner of the Twitter platform, has announced a monthly fee of $ 8 for the account documented in the Blue Sparrow app.

of Twitter current gentlemen and peasants system for who has or does not have a blue check mark is bullshit.

Power at people! Blue for $ 8 / month.

– Elon Musk (@elonmusk) November 1, 2022

“The current system of gentlemen and peasants on Twitter for those with or without a blue check mark makes no sense,” wrote Musk. in a tweet through his account, adding, “Power to the people! Blue for $ 8 a month,” noting that this created a new source of revenue for the platform.

He also posted a tweet dressed as “Superman” and wrote “$ 8 .. yes”, referring to the blue verification mark that appears next to verified accounts.

fototwitter.com/icg6e35LOe

– Elon Musk (@elonmusk) November 1, 2022

Interestingly, Musk acquired Twitter last Thursday for $ 44 billion. The move came after the new owner of Bluebird, who also runs Tesla and SpaceX, fired Twitter CEO Parag Agrawal and other senior company officials last week.

The controversial man last week completed the acquisition of the famous company social networking after many months of back and forth.

He then moved quickly to make changes to the company, which he mocked for months for being slow in making changes to its products or deleting spam accounts.

Tuesday, 1 November 2022

After 85 years of abandonment, researchers discover a historic cache of legendary photographer’s equipment!

In 1937, photographer and cartographer Bradford Washburn abandoned his camera, surveying equipment, and supplies when he encountered bad weather while exploring Canada’s frozen Yukon region.

And in August, 85 years later, a team of scientists and professional mountain explorers unearthed a long-lost cache of equipment buried in the ice of the distant Walsh Glacier.

Eight decades ago, Washburn and fellow explorer Robert Bates were attempting to climb Mount Lucania in the St. Elias Mountains when bad weather forced them to abandon their heavy photography equipment.

At the end of April 2022, professional skier Griffin Post, along with other adventurers and scientists, went on a three-week expedition to the glacier located in the Kluan National Park and Preserve in Canada, along with other adventurers and scientists to find places. cameras.

Post said in statement Journalist: “I was an optimist, but I knew it was like finding the proverbial needle in a haystack. A lot can happen on a glacier in 85 years.”

Dora Magica, a glaciologist at the University of Ottawa, was invited to go to the site and map the glacier to determine where the mechanism might shift over time.

“They basically needed help figuring out how the glacier was moving and how best to find the hiding place,” Magica told Insider.

A group of glaciologists from the University of Ottawa assisted the expedition remotely.

Upon arrival in the area, the group searched on foot, skiing and snowboarding.

“We had an idea where to start looking, but nothing was very accurate,” Medjika said. “We traveled many kilometers up and down the glacier. It was difficult for us to find it – we didn’t see it anywhere.”

To try to determine the original site of the camp, the team looked at photographs of the bunker’s location that had survived from the Washburn expedition.

The team only discovered the cameras during a second, shorter trip to the glacier in August.

“We were on the verge of giving up because all of our efforts came to nothing,” Medjica said.

On the penultimate day of the journey, Medjika put forward a new version of the whereabouts of the artifacts.

She said glaciers usually move at a constant rate year after year, but the Walsh River is a rare “growing” glacier, meaning it moves faster for a year or two every few decades.

I noticed piles of debris along the entire length of the glacier, which I thought were caused by a sudden burst of current. This prompted her to find out how and when the glacier flowed in the past.

The observation allowed her to make a new estimate of where the elements were, which was three or four miles down the valley and about 14 miles from where Washburn had left him.

Her intuition eventually led the team to the missing gear. “It was such a great feeling and I was relieved that I couldn’t find the stash,” Medjika said. “It was an epic moment for everyone.”

A few weeks later, scientists from Parks Canada returned to the glacier with an expedition team to remove the camera from the ice. The team recovered most of Washburn’s Fairchild F-8 aerial camera, as well as two movie cameras with film loaded inside, tents, and other survival gear.

According to Magica, the team knew Washburn had photographed the landscape before discarding his equipment. Now they plan to develop the old film, hoping to salvage the images.

“What’s really important here is that this is new data that we couldn’t get without finding this cache,” Medjika said. “We were able to trace the path that the cache has taken since 1937.”

She said the results could help scientists better understand how glaciers move, adding that “if we now combine this information with satellite data, we can try to see if the flow of this particular glacier has changed in the past and how.”

Source: Science Alert.

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Modern technologies for achieving sustainable development goals and combating climate change

Current renewable energy initiatives in the countries of the Middle East are helping to increase their role in supporting international efforts to combat climate change.

Moreover, this region is considered one of the largest suppliers of the oil and gas sector in the world and at the same time is the cradle of a number of large and ambitious initiatives and projects aimed at encouraging the use of clean energy.

In the UAE, the Mohammed bin Rashid Al Maktoum Solar Power Complex is the largest solar power facility in the world and is based on the IPP model, and the Al Dhafra Solar PV Power Plant is being built as the largest solar power plant in the world with a production capacity of 2 GW.

Masdar City is the most sustainable urban energy community in the world. The Abu Dhabi Development Fund aims to fund innovative projects to accelerate access to sustainable energy through a joint initiative with the International Renewable Energy Agency (IRENA).

In Saudi Arabia, the city of NEOM recently launched the pioneering Line project, this unparalleled city in the world is unique in that it has no cars and therefore no carbon emissions, and its 100% reliance on renewable energy. . King Abdullah University of Science and Technology leads clean energy projects; Developed around recycling wastewater for reuse for plant irrigation and other uses, the university also has large area photovoltaic panels that produce clean electricity.

In Egypt, hydropower is the second source of energy after thermal energy, then wind energy, then solar energy. The state has developed a number of future projects through which it seeks to use solar energy and replace it with non-renewable energy. Other green projects in Egypt include the cities of Jebel el-Galala and El Alamein.

The Bahrain World Trade Center is considered one of the world’s leading examples of sustainable architecture and the world’s first skyscraper to incorporate wind turbines in its design to provide overall energy consumption.

As for Morocco, which is famous for its huge and world-leading solar panels, it has established itself as a leading country in the fight against climate change. Renewable energy sources account for almost two-fifths of the country’s electricity. and the country is implementing some of the largest clean energy projects in the world.

Similarly, since 2012, Jordan has switched to solar energy for electricity generation, and government policies have encouraged citizens and investors to turn to renewable energy to reduce carbon emissions, providing investors with financial opportunities and lowering the cost of electricity bills.

Sustainability initiatives in the Arab countries are actively promoting the building of a diversified digital economy that is in line with the national visions of these countries, and the Green Economy Initiative launched by the UAE and the Green Saudi Arabia Initiative are examples of this.

Today, the role of the ICT sector in achieving energy sustainability is growing with the help of modern technologies such as the fifth generation, cloud computing and artificial intelligence, which will play a fundamental role in the implementation of clean energy initiatives, as they increase productivity, increase efficiency, reduce costs. and waste, evaluate work systems, analyze waste methods, track problems and develop solutions.

The International Telecommunication Union states that ICTs will contribute to the achievement of the United Nations Sustainable Development Goals and a better quality of life.

According to the United Nations, information and communication technology can be relied upon in two ways: relying on clean information and communication technology and generating clean energy by relying on information and communication technology.

In the first scenario, ICT solutions are developed that help improve environmental safety and reduce carbon emissions. In the second scenario, ICT solutions used in networks, buildings, smart logistics and industrial processes help improve sustainability and energy efficiency.

Technology companies’ sustainability efforts have been recognized globally, and Huawei is an example of companies that have changed their business in line with sustainability goals and recently received an award from the International Mobile Phone Association for their contribution to achieving sustainable development goals. United Nations Sustainable Development Goals through mobile devices.

The company is committed to building on innovative technologies for cleaner development across sectors and industries, and in 2021 it used more than 300 million kilowatt-hours of electricity generated from renewable energy sources in its operations, which is 42.3% more compared to until 2020.

Huawei’s digital energy solutions also contributed to the generation of 482.9 billion kilowatt-hours of clean energy and reduced electricity consumption by 14.2 billion kilowatt-hours, which is equivalent to reducing carbon emissions by 230 million tons.

In parallel with efforts to promote sustainable approaches to technology, the ICT industry must not lose sight of the issue of improving security. Technology providers should focus on protecting user privacy as they work to provide state-of-the-art technology and uninterrupted communications.

Of course, we will not be able to grow our business and ensure its sustainability if we do not provide reliable and secure technologies to protect cybersecurity, which is the shared responsibility of all stakeholders involved in ensuring sustainability.

The current digital divide could isolate millions of people around the world from participating in the development of a clean economy. Technology companies can contribute to making technology accessible to all through their technical capabilities and resources.

Through initiatives such as TECH4ALL, Huawei has used digital technologies to implement leadership development programs for more than 110,000 people in 2021. The digital divide in the global workforce has the potential to undermine sustainable development efforts, so more attention should be paid to corrective action and prioritization of collaboration between technology companies, academia and government to bridge the digital skills gap.

By investing in programs to train local technical staff, improve skills and expand practical experience, more bridges of collaboration between the public and private sectors can be built to prepare the next generation of leaders for sustainability through technology.

In this regard, Huawei has established 163 ICT academies in the Middle East. Over 3,500 students have taken part in the Seeds program for a Global Future, and more than 37,000 students have received Huawei-accredited certifications.

The company has also trained more than 120,000 ICT professionals in the region, who are expected to help build resilience in the countries of the region by making the most of technology.

In light of the growing challenges of reducing carbon emissions around the world, we all have a responsibility to expand the ways of cooperation, joint action and join forces to build a sustainable and prosperous future for future generations.

Posted by Ammar Taba, Vice President of Public Relations and Media in the Middle East, Huawei

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"the genie is circling" Surrealism in Namibia dispels the mystery of its origins

The origin of “jinn circles” in Namibia has puzzled scholars for almost half a century. These are strange circles of sand without grass in places where there is a lot of grass, they form and disappear years later for an unknown reason.

Scientists have long attributed these red circles, especially those found in the grasslands of Namibia and northwestern Australia, to either termites or plants having somehow self-organized.

Now, a team of scientists from the University of Göttingen in Germany has found new evidence supporting the self-regulation theory, in which previous research has attempted to explain the nature of the mysterious “genie circles” found in the Namib Desert, the world’s oldest desert along the coast of Namibia, southwest Africa and western Australia. .

Based on two “exceptionally good” rainy seasons in the Namib Desert, the scientists showed that weeds in “good circles” died immediately after the rains, but termite activity did not result in bare patches.

Continuous measurements of soil moisture show that weeds around circles greatly deplete water inside circles and therefore can lead to death of weeds inside circles.

According to the results published in the journal Perspectives in Plant ecology, evolution and taxonomy, grasses form these circles 2 to 10 meters wide to make the most of the scarce rains.

About 80-140 km from the coast in the Namib there are millions of “even circles”, each several meters wide, which together form a distinct pattern, visible for miles around.

Scientists monitored sporadic rainfall in several areas of this desert and studied weeds, their roots and shoots, as well as possible root damage caused by termites.

Termites, tiny insects that live in large colonies around the world, are often blamed for the death of weeds.

Scientists have paid great attention to the study of the conditions for the death of weeds in the “circles of genies” immediately after the rains, which led to a new growth of weeds.

In addition, they installed soil moisture sensors in and around the trails to record soil and water content at 30-minute intervals from the 2020 dry season to the end of the 2022 rainy season.

Scientists are puzzled over Origin of Fairy circles in Namibia for Near half a century. He boiled down up to two main theories: either the termites were responsible, or the plants somehow self-organized. https://t.co/mR0wVjTi7S rice.twitter.com/tCMeAFkZY4

— Namibian (@TheNamibian) October 23, 2022

This allowed the scientists to accurately record how the growth of newly emerging weeds around the circles affects the soil water in and around the circles. They studied the differences in water infiltration between on and off circuits in ten regions of the Namib Desert.

The data shows that after about ten days of rain, the grasses inside the circles were already dying off, while in most of the inner circles, the grass did not grow at all. After twenty days of rain, the grasses inside the circles were completely dead and yellow, while the surrounding grasses were bright and green.

When the team examined the grass roots inside the circles and compared them to the green grasses outside, they found that the roots inside the circles were longer or longer than those outside. This indicates that the weeds were trying to take root in search of water. However, scientists have found no evidence that termites feed on roots.

It wasn’t until fifty to sixty days of rain that damage to the roots of the dead weeds became more apparent.

Dr. Stefan Götzen from the Department of Ecosystem Modeling at the University of Göttingen explains: “The sudden absence of grass in most areas inside the circles cannot be explained by termite activity, because these insects do not have biomass to feed on. the important thing is that we can show that the termites are not to blame, because the weeds die right after the rains without any sign that the creatures are feeding on the roots.”

When the team analyzed data on soil moisture fluctuations, they found that the decrease in soil moisture inside and outside the circles was very slow after the first rains, when weeds had not yet settled. However, when the surrounding weeds were established, the decline in soil moisture levels after the rains was very rapid in all areas, although there were almost no weeds in the circles that could absorb water.

Gitzen explains: “In the extreme heat of the Namib, weeds constantly penetrate the soil and lose water. Consequently, they create voids for moisture in the soil around their roots, and water is attracted to them. Our results are in complete agreement with the results of researchers who showed that water in soil quickly and horizontally diffuses in this sand even over distances of more than seven meters.

“By forming highly ornamental landscapes with evenly distributed fauna, weeds act as ecosystem architects and directly benefit from the water resources provided by vegetation interruption. Indeed, we know related self-organizing plant structures from various other harsh drylands,” adds Götzen. world, and in all these cases, plants have no other chance for survival than to grow in precisely such geometric formations.

This study may help to understand such ecosystems, especially in relation to climate change, as plant self-regulation protects against the negative effects of increased drought.

Source: phys.org.

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The Russians have created a device that prevents sleep apnea

Scientists from the Belgorod National Research University have created and received an official patent for the invention of the first device in Russia to detect sleep apnea.

And the press service of the university indicates that this device allows you to track and detect stops in a person’s breathing during sleep for more than 10 seconds and helps to restore it.

“Scientists at Belgorod University have received a patent for a device that prevents sleep apnea. This patented device is the first domestic innovation in this area, and due to its simplicity, ease of use and speed of information processing, it has surpassed all known analogues.

Sleep apnea syndrome is characterized by a cessation of ventilation of the lungs for more than 10 seconds, which leads to a decrease in the level of oxygen in the human blood, an increase in the level of carbon dioxide, and a violation of the acid-base balance. This syndrome is also a factor in stroke, myocardial infarction, and cardiac arrhythmias.

“Our device includes breath sensors, a microcontroller, a Bluetooth module for communicating with peripheral devices, and a stimulator in the form of a vibration motor that wakes up the patient on hold and allows him to return to normal breathing,” says Andrey Alenikov, head of the student robotics design bureau and mechatronics at the university.

He adds that an important feature of the new device is the ability to control breathing through the nose and mouth at the same time.

Source: TASS

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Instagram is looking into the outage, with thousands of accounts suspended

Instagram is looking into an issue that prevented thousands of users from accessing the photo-sharing platform, with many complaining about their accounts being suspended.

“We understand that some of you are having trouble logging into your Instagram account. We are looking into this and apologize for the inconvenience,” Meta Platforms-owned Instagram said on its Twitter account on Monday.

An Instagram spokesperson did not comment on the account suspension issue. Several users of the platform wrote on Twitter that Instagram asked them for their email and phone number to access suspended accounts.

Earlier today, nearly 3,000 users were affected, according to the Downdetector website, which tracks outages, but this outage may have affected a far greater number of users.

Meta shares fell roughly five percent due to widespread selling in the equity markets.