Tech
A “strange” exoplanet will hide its all-iron composition past its demise
An international team of astronomers has revealed that a strange exoplanet, located 31 light-years from Earth in the Virgo galaxy, is denser than previously thought and a solid ball of metal.
Known as Gliese 367 b, or Tahay, the planet orbits a nearby red dwarf star, and little was known about it until scientists recently decided to delve deeper into the mystery of its mineral composition.
The study, published in The Astrophysical Journal Letters, provides precise measurements of the planet’s mass and radius.
Taihai consists mostly of rock and iron and is about the same size as Earth, allowing it to be captured by current techniques.
“You can compare GJ 367 b to an Earth-like planet whose lithosphere has been stripped away,” lead author Elisa Coffo of the University of Turin told ScienceAlert.
Tahai was first discovered in 2021 by NASA’s Transiting Exoplanet Survey (TESS) Space Telescope system as it orbited its small, faint red dwarf star. Scientists at the time declared it to be a planet with a very short orbit, as it orbited its host star in 7.7 hours, a mysterious and poorly studied category of exoplanets.
Scientists at the time pointed out that Gliese 367 b is a rocky world about 70% the size of Earth and 55% the mass, making it one of the lightest exoplanets known.
But the latest research showed something that shocked scientists, the results found that Dahai is denser than what the 2021 study found.
GJ 367 b is defined as an ultradense exoplanet. According to the new data, the exoplanet has a radius of 70% that of Earth instead of the previously estimated 72%, and its mass is 63% that of Earth instead of 55%.
The team concluded that Dahai’s density is twice that of Earth. The secret is that Taihai may have experienced a cataclysmic event in the past that was mostly made of metal.
According to the study authors, this information can be proven by combining new measurements from TESS and the HARPS spectrometer, which is attached to the European Southern Observatory (ESO) telescope.
Joao suggested that this celestial body had a formation process similar to Earth’s, and that it appeared to have “a dense core composed mainly of iron, surrounded by a silicate-rich mantle”.
Hypotheses about its origin suggest that “a cataclysmic event could tear apart the rocky mantle and empty the planet’s dense core,” the astronomer said. This may have happened due to collisions between GJ 367 b and other protoplanets, stripping off its outer layer. Joao proposed a third theory, in which the planet is believed to have been “born in an iron-rich region of the protoplanetary disk”.
Source: The Sun
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GB WhatsApp Update GB WhatsApp application is considered as one of the most important applications relied on by millions around the world.Recently, a new version of the application has appeared, which is equipped with imaginative specifications that effectively meet the needs of users. And fans of this app are looking for a way to install it. Enjoy its new version.
New WhatsApp GB Update
One of the main features of the new update for the WhatsApp GB application is related to the ability to completely change the user interface. Users can choose the look of the app that suits them personally by changing colors, backgrounds or backgrounds. Even application icons. In addition, they users can control the size of the texts and customize them according to their personal preferences.
Hide and lock functionality is another great feature introduced in the new update for WhatsApp GB app. Users can now hide their private conversations and lock them with a code or fingerprint, increasing the confidentiality of content and protecting personal data.
Features of WhatsApp GB
For users who want to download video clips from WhatsApp posts, the new update gives them this ability easily and users can now save important or funny video clips on their phones without the need for external apps.
In terms of privacy, the new update for the WhatsApp GB app brings a new feature related to hiding appearances and not showing users the last seen time. The user can adjust these settings according to his personal preferences, reaching the highest levels. Privacy and Confidentiality.
New WhatsApp GB Updates
The new update to the WhatsApp GB application includes many additional features such as the ability to seamlessly send long messages, block notifications from unwanted people, and specify specific links that appear in group chats.
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Written by May Mustafa
Motorola recently introduced a new unique color for its smartphones called Peach Fuzz, which is the Pantone color of the year 2024 for the Razr 40 Ultra and Edge 40 Neo collection, with the same prices and specifications as the rest of the smartphones. Launched in select markets around the world.Globally, from December 12, India may be launched.
Features of the new Motorola Razr 40 Ultra phone
The Motorola Razr 40 Ultra phone is powered by the flagship Qualcomm Snapdragon 8+ Gen 1 processor and is coupled with up to 12 GB of RAM and 512 GB of internal storage. It also has a dual rear camera which houses the main sensor. The phone has a 32-megapixel front camera with 12-megapixel resolution and a 13-megapixel macro photography lens with OIS optical stabilization technology, and Motorola has equipped its foldable phone with Dolby Atmos along with dual stereo speakers.
Additionally, the Motorola Razr 40 Ultra phone packs a 3,800 mAh battery that supports 33-watt fast charging. In terms of software, the phone runs Android 13 with the brand’s Ready for feature.
Motorola Razr 40 Ultra Phone Price
The Motorola Razr 40 Ultra phone is available for sale in the US starting at $700 (equivalent to 21,648 Egyptian pounds).
Motorola Razr 40 Ultra Phone Specifications
As for the specifications of the Motorola Razr 40 Ultra foldable phone, it sports a 6.79-inch pOLED flexible foldable screen with FHD+ resolution, supports a high refresh rate of 165 Hz per second, and has a large external screen on the back panel. , 3.6 inches. It is a pOLED variant with a refresh rate of 144 Hz per second and is protected by Gorilla Glass 7.
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In the context of identifying defects S22 UltraWe can point out that Samsung is considered to be one of the most important companies working in the world of manufacturing smart phones, as this company is considered to be one of the companies that has been able to achieve massive popularity in the Saudi market. So let’s know about the problems of Ultra 22s phone.
defects S22 Ultra
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Although the phone has many advantages, it suffers from several disadvantages, which can be identified through the following points:
- It is not possible to install external memory.
- It does not have a 3.5mm headphone jack.
- There is no charger head in its case.
- It does not have fast charging facility.
- Its battery does not have enough capacity.
Ultra S22 Phone Features
Despite the flaws, the characteristics of a highly disturbed tyrant can be identified by the following points:
- Its camera is characterized by high-quality photography whether it is shooting photos or videos or shooting day or night.
- The device comes with one of the Android systems, Android 12.
- AMOLED screen with a frequency of up to 120 Hz.
- Its processor is distinguished by its powerful performance.
- It is characterized by the strength and high quality of the manufactured products.
- It is considered a water and dust resistant phone.
- Supports shooting videos up to 8K quality.
Ultra S22 specifications
The phone has many highlights which we can identify through the following points:
- The phone is made of protected glass material, in addition to the aluminum frame, which gives it a unique look of sorts.
- It is designed to support 3G to 5G Nano chipsets.
- Its screen is distinguished by its high resolution and large size, but its most important feature is to change the lighting rate according to the external light between frequencies, which provides a great reduction in energy consumption.
- The phone is manufactured with up to 128 GB of internal storage memory and also relies on up to 8 GB of RAM.
- It comes with a powerful 4-nano internal processor, while it has a unique graphics processor.
- In terms of cameras, its front camera comes with a resolution of 10 megapixels, while the rear camera reaches 50 megapixels, and is characterized by optical stabilization capability, and these cameras have the ability to zoom up to 3 times.
- Its battery is 3700 mAh, supports up to 25W fast charging and 4.5W wireless charging, but it’s not the best in that range.
- It supports Bluetooth, GPS and GPS in addition to supporting multiple Wi-Fi bands.
- It supports both fingerprint and facial recognition, providing the highest levels of privacy protection.
- Highly water- and dust-resistant, with a noise-isolating microphone.
Samsung is considered to be one of the most important companies that have managed to achieve a special position in the smart phone market, as this market is currently considered one of the most popular markets through which it works to provide users with many features. , so companies compete in this sector.
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