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An ozone hole seven times larger than the Antarctic one An ozone hole seven times larger than the Antarctic one

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An ozone hole seven times larger than the Antarctic one has been discovered in the Earth’s stratosphere

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The existence of a large ozone hole over the Antarctic is known, if not to everyone, then to many. Ozone holes are also forming over the Arctic. But, as it became known now, there is another large ozone hole in the Earth’s stratosphere. The existence of an ozone hole over tropical regions, seven times the size of a similar phenomenon over Antarctica, was announced by a Canadian researcher from the University of Waterloo in Ontario, Qing-Bin Lu (Qing-Bin Lu).

An ozone hole seven times larger than the Antarctic one has been discovered in the Earth's stratosphere

“The tropics make up half the planet’s surface area and are home to about half of the world’s population. The existence of a tropical ozone hole is a matter of serious global concern.”says the author of the study.

The area he discovered in the lower stratosphere above the tropics contains 25% less ozone than usual. The hole is located between 30 degrees north latitude and 30 degrees south latitude. In depth, it is comparable to the Antarctic, and in area it exceeds it seven times. As in the case of the polar hole, in the center of the tropical hole, ozone is 80% less than normal. In addition, the tropical hole is not seasonal, but year-round, says the researcher, who drew conclusions based on satellite data.

A press release from the American Institute of Physics notes that the discovery of a new ozone hole came as a surprise to Lu’s colleagues. Its appearance contradicts the generally accepted photochemical model, according to which photolysis contributes primarily to the destruction of the ozone layer – in this case, we are talking about the decomposition of chlorofluorocarbons and the release of free chlorine radicals that destroy the ozone layer. But the photochemical model could not explain why the smallest ozone holes were observed during solar maximum years (1991, 2002 and 2013), while the largest, deepest and most stable holes appeared during solar minimum years (1987, 1998, 2008 and 2020), notes Lu.

A Canadian scientist has developed his own model, calling it the cosmic-ray-driven electron reaction (CRE). In a series of his papers, Lou argues that the main factor that reduces ozone levels is the effect of galactic radiation, whose effect on the Earth is inversely proportional to that of the sun. High-energy particles from deep space trigger reactions in halogen-containing molecules in the coldest (lower) layers of the stratosphere, leading to a massive release of substances that deplete the ozone layer.

Ozone, we recall, is an unstable gas, the molecule of which consists of three oxygen atoms. It is contained in the stratosphere in a relatively small amount, which, however, is sufficient to significantly reduce the impact of ultraviolet radiation on the Earth’s surface. The depletion of the ozone layer increases the risk of developing skin cancer and cataracts, weakening the immune system in people. In addition, it negatively affects agriculture and various ecosystems.

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“The sale of SIM cards is really becoming more expensive and meaningless,” MTS will reduce sales of SIM cards and the number of communication stores

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The sale of SIM cards is really becoming more

MTS President Vyacheslav Nikolaev said that the company plans to move towards reducing sales of SIM-cards, as well as reducing their points of sale.

It seems to me that now, when the cost of SIM cards has increased by an order of magnitude, it’s time to heal this market. Therefore, from the point of view of sales of SIM cards, it seems to me that the sales volume can now be reduced, especially since for us, ecosystem effects provide very serious advantages in reducing the outflow – this also allows us to take sales more calmly.

“The sale of SIM cards is really becoming more expensive and meaningless,” MTS will reduce sales of SIM cards and the number of communication stores

Nikolaev noted that an increasing number of customers are also moving online, which also allows, in terms of telecom, to reduce the number of their own points of sale.

From the point of view of telecom, it seems to me that this is a very timely issue, and perhaps the right actions will be taken by the entire market. At least we will go in this direction. We hope that colleagues will not be far behind, because selling SIM cards is indeed becoming more expensive and pointless.

As we have already reported, MTS may sell its tower business.

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The SpaceX Starship interplanetary spacecraft has not yet made a single orbital flight, but the Japanese have already announced the launch of their telecommunications satellite on it

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The SpaceX Starship interplanetary spacecraft has not yet made a

One of Asia’s largest telecoms and pay-TV operators, Japanese company Sky Perfect JSat, has announced that it plans to use the SpaceX Starship interplanetary spacecraft to launch its Superbird-9 telecommunications satellite into geosynchronous orbit in 2024. The details of the deal were not disclosed.

The SpaceX Starship interplanetary spacecraft has not yet made a single orbital flight, but the Japanese have already announced the launch of their telecommunications satellite on it

The situation is noteworthy in that Starship has not yet made a single orbital flight: Elon Musk promises to launch Starship on a test flight into orbit almost every month for about a year, but it is delayed each time. However, there is no contradiction that an interstellar spacecraft to launch a payload into orbit: in concept, Starship should replace all of SpaceX’s current rockets, including the workhorse Falcon 9, which goes into space every week.

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Hackers cracked the latest Pentagon technology

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Hackers cracked the latest Pentagon technology

Hackers at the DEF CON 2022 event in Las Vegas managed to break into a new technology of the US Department of Defense – local autonomous electrical networks (microgrids) at military bases.

Hackers cracked the latest Pentagon technology

The Pentagon has tested the technology to look for vulnerabilities. Many of the more than 1,700 DEF CON members have successfully shut down a dummy network that mimics the one being prepared by the Pentagon. So, one of the hackers found out that microgrids work on the Kelvin temperature scale, which does not use negative values. As a result, he put negative numbers in the forecast model, which caused the system to crash.

The Pentagon said they also plan to launch a full-fledged program to further test the microgrid and find gaps. A microgrid is a technology for dividing one power system into sections. Each cell is able to work autonomously if necessary and actively uses alternative energy sources.

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