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The largest supercomputer ever built creates an accurate virtual simulation of the universe

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The largest supercomputer ever built creates an accurate virtual simulation of the universe

Tuesday 24 October 2023 / 19:00

From the Big Bang to today, astronomers have run massive “supercomputer” simulations to help solve some of the universe’s greatest mysteries.

The goal is to compare the virtual universe with what we know about the real world, including new information captured by high-powered telescopes that sometimes don’t match what was expected.

This will help scientists understand whether the current theory of how the universe formed, known as the Standard Model of the Universe, is a good description of reality.

The project, called “Flamingo”, calculated the evolution of all elements of the universe, including ordinary matter, dark matter and dark energy, according to the laws of physics.

Collaborating researcher on the “Flamingo” project from Durham University Professor Carlos Frenk said: “Cosmology is at a crossroads, and now there are exciting new data from powerful telescopes, some of which, at first glance, do not match our theoretical expectations.”

“High-resolution simulations of the universe can tell us the answer,” he added.

Previous simulations that have been compared to observations of the universe have focused on cold dark matter, which is thought to be a key component of the universe’s structure. However, astronomers now say that the influence of ordinary matter, which makes up only 16% of all matter in the universe, including Earth and everything in it, and neutrinos, tiny particles that rarely interact with ordinary matter, must also be present. is taken into account when trying to understand the evolution of the universe.

The researchers have been running simulations on a powerful supercomputer in Durham for the past two years. The simulations took more than 50 million processing hours on the COSMA 8 supercomputer run by the Institute for Computational Cosmology at Durham University on behalf of the Dirac High Performance Computing facility in the UK.

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Funding for the project came from the European Research Council, the UK Science and Technology Facilities Council, the Netherlands Organization for Scientific Research and the Swiss National Science Foundation.Metro“Electronic.”

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BREAKING: Redmi Note 13 Phone Launched in Saudi Arabia and Egypt Find out about the price and specifications

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BREAKING: Redmi Note 13 Phone Launched in Saudi Arabia and Egypt  Find out about the price and specifications

Recently, the launch of Xiaomi Redmi Note 13 phone was announced in Egypt and Saudi Arabia, which made many users and mobile phone lovers search for the specifications of this phone and what is the right price because this phone comes with some great qualities. Ease of use in keeping with the times, it is worth noting that the Redmi Note 13 also has features that make it a best seller in the markets, so we will show you everything related to the phone in terms of advantages, disadvantages, and prices in the Egyptian and Saudi markets, all through the following article.

Xiaomi Redmi Note 13 phone

Due to the high number of inquiries about the Redmi Note 13 phone, the search for its specifications has increased, which include:

  • This phone comes from the latest category of mobile and smart phones and is associated with Xiaomi.
  • The phone is slated to launch by September 2023.
  • The phone is available in several unique colors including white, black and blue.
  • The length of the phone is about 161 mm, width is 75 mm, thickness of the phone is about 7.5 mm and weight is 173 grams.
  • The extra large 6.6-inch screen is perfect for gaming and video playback.
  • The refresh rate of the screen is 120 Hz, 365 pixels per inch.
  • The brightness reaches 1000 nits, which is the highest brightness you can see.

read more: When is the Samsung Galaxy S24 Ultra release date in Saudi Arabia, what are the specifications and prices of the phone?

Redmi Note 13 Phone Specifications

Xiaomi Redmi Note 13 phone

As for the specifications of the Redmi Note 13 phone, it is considered to be the best features including:

  • The octa-core Mediatek processor has a manufacturing precision of up to 6 nm.
  • The processor frequency is around 2.4 GHz.
  • The phone has different types of RAM, 6, 8, 12, GB RAM.
  • There are two types of internal phone memory: 128 GB and others 256 GB.
  • Another feature of the phone is the camera, which isolates the background while shooting.
  • The possibilities for shooting at night are amazing.
  • This includes AI photography and geotagging and digital zoom.

read more: Ways to remove the smell of fries at home without using perfumes.

Redmi Note 13 Phone Price

After the launch of the Redmi Note 13 phone in the Saudi and Egyptian markets, everyone wants to know the exact prices, which are as follows:

  • Redmi Note 13, 128 GB version, priced at $190.
  • The phone comes in Egypt at a price of 5,900 thousand Egyptian pounds.
  • We have the 256 version with 8 GB of RAM priced at 6,300 Egyptian pounds, and in foreign markets the price is around 205 USD.
  • The highest version costs around 7,100 Egyptian pounds.

How much does Xiaomi 13 Ultra cost in Egypt?

The price of Xiaomi 13 Ultra phone in Egypt is about 27 thousand Egyptian pounds, and it has 256 GB and 12 GB RAM.

how much Redmi Note 13 Pro

The price of the Redmi Note 13 Pro phone is around 19,500 thousand Egyptian pounds.

How much does Xiaomi 12 Ultra cost?

Xiaomi 12 Ultra phone, 512 GB version, comes with 12 GB RAM for 35 thousand pounds.

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Once in 21 thousand years the desert turns into fertile land! | Arab weather

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Once in 21 thousand years the desert turns into fertile land!  |  Arab weather

Arabia Weather – It’s hard to imagine, but the Sahara desert was a green forest a few thousand years ago.

Every 21,000 years the desert becomes fertile land

The sand dunes and rocky plateaus of the Sahara may seem as old as time, but that may be far from the truth. According to a new study, this vast area of ​​North Africa changes from barren desert to lush forest every 21,000 years or so.

The last time the Sahara was a green forest occurred between 15,000 and 5,000 years ago. This latest research confirms that it’s not just a curious blip, but part of a cycle that changes an area from dry to wet every 21,000 years.

Dr Edward Armstrong, lead author of the study and a climate scientist from the University of Helsinki and the University of Bristol, said in a statement: “The transformation of the Sahara into different ecosystems and forests is one of the most significant environmental changes on the planet.”

“Our study is one of the first climate modeling studies that simulates African wet periods at a scale similar to what paleoclimate observations indicate, and reveals why and when these events occur.”

The new research seems to have a better understanding of what is being called “Wet Periods in North Africa”. It uses a recently developed climate model for the past 800,000 years.

Their work confirmed the idea that periodic wet phases in the Sahara are driven by changes in Earth’s orbit around the Sun. It is generally agreed that “Greening“The Sahara desert exists because of the Earth’s tilt on its axis, which affects the seasons and determines the amount of energy a part of the planet receives. This ultimately affects the strength of the African monsoon, which helps control the amount of vegetation spread across a wide area.

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However, their work also suggests that this circulation may be influenced by distant ice sheets at high latitudes in the Northern Hemisphere. Wet periods did not occur during the Ice Ages, when most of Earth’s high latitudes were covered by thick ice sheets.

Experts speculate that these ice sheets served to cool the atmosphere like a refrigerator, controlling the African monsoon system and suppressing the growth of plant life in the Sahara.

Cycle change in North Africa is not only a big problem for the Sahara, but it has huge implications for our story. After all, humanity’s greatest early achievements—the migrations out of Africa—were largely dictated by conditions in the Sahara. Depending on his “mood”, it can act as a severe barrier or a welcoming path.

The door was open when the desert was green and closed when deserts prevailed

Mika Thalavara, co-author and assistant professor of hominin ecology at the University of Helsinki, explained: “The Sahara serves as a gateway to northern and sub-Saharan Africa, controlling the spread of species within and beyond the continent.”

The door was open when the desert was green and closed when deserts prevailed. This transition between wet and dry phases had serious consequences for the distribution and evolution of species in Africa. Modeling wet periods in North Africa is a major achievement, and we are now able to model human distributions and understand the evolution of our species in Africa.


Source: Science

Nature

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Find out the specifications of the Honor X7b phone

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Find out the specifications of the Honor X7b phone

Find out the specifications of the Honor X7b phone

Find out the specifications of the Honor X7b phone


Honor recently launched the Honor X7b phone with a larger battery capacity, 108-megapixel main camera and starting at $249.

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The phone supports the Snapdragon 680 processor chip, so the phone is limited to connectivity to 4G networks. The phone is available with random memory options of 6 or 8 GB RAM and 128 or 256 GB storage capacity, and supports external. Storage on microSD.

On the rear camera setup, Honor

The battery is one of the most important marketing points of this version, as it includes a 6000 mAh battery, and supports 35W fast charging technology via the Honor Supercharge charger.

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800 thousand Palestinians in Gaza and Northern Gaza Strip without food or medicine ←

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