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Astronomers discover new phenomenon where a white dwarf star turns on and off in 30 minutes in science and technology news



Astronomers discover new phenomenon where a white dwarf star turns on and off in 30 minutes in science and technology news

Astronomers have discovered a new cosmic phenomenon in which a white dwarf star becomes “off”, the brightness decreases and the intensity increases within 30 minutes.

The discovery was based on NASA’s search for extraterrestrial planets, described by a team of astronomers at the University of Durham and their partners around the world as “extraordinary.”

At first they thought the fluctuations would interfere with feeding a white dwarf from a sub-star that was part of a binary system – but they did not expect the cause to be unique.

The flow of matter from the donor star to the main white dwarf is subject to gravity, so it must be relatively constant, so there is no obvious reason for such a short-term change as the brightness of the star.

The continuous and rapid recovery of the magnetic field of the white dwarf’s surface – something that the researchers realized was unprecedented.

The binary system called TW Pictoris is about 1,400 light years away from Earth.

Normally, when its white dwarf is “on”, the star feeds on its companion, glowing in space – but sometimes when it stops, the star fades and disappears.

This has been seen before, but it usually does not happen so fast.

According to research published in natural astronomy, a white dwarf has an unusually fast magnetic field that spins very fast and prevents it from reaching the main star.

Leading author Dr. Simon Skarringi, who works at the Extracalactic Astronomical Center in Durham, said: “The differences in brightness we see in white dwarfs are usually slow, and they last from days to months.

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“It’s unusual to see the brightness of DW Pictoris in 30 minutes because it’s not in other white dwarfs,” he said.

Dr. Scaringi explained to Sky News: “The comparative process for adding white dwarfs is generally relatively smooth and there are no short-term‘ gaps ’in bright differences.

“What usually happens in these types of systems is that the donor star feeds on the disk in orbit around the white dwarf.

When the aggressive disk material slowly sinks towards the white dwarf, it usually glows, eventually forming on the surface of the white dwarf.

“In some systems, it is known that donor stars stop feeding the disk,” he said, although scientists have not yet figured out why this happens, but the disk will be bright for a while when that happens. Pre-existing products.

“Then it took one to two months for the disk to expel most of the material, and we saw different white dwarfs,” Dr. Scaringi explained.

When the body is completely inactive it is called the ‘magnetic supply’: the rotating magnetic field barrier of the white dwarf prevents the upper left disk material from aligning evenly, but instead begins to control the size of the white dwarf landing on the fits

“Since it takes several months to discharge the disk, reducing the brightness of TW Pictoris in 30 minutes is completely unexpected,” he added.

What we mean with DW Pictoris is that instead of emitting the disk very quickly, we see some sort of reconstruction of the dwarf’s white magnetic field, which immediately pushes the edge of the inner disk out, causing it to spin until the disk is pushed back inside. “

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“This is actually a previously unrecognized event,” Dr. Scaring said.

“Since we can compare similar behaviors in young neutron stars, this is an important step in understanding how objects and other important magnetic fields around them play an important role in this process.”

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Resident Evil Village will be released on iPhone at the end of October



Resident Evil Village will be released on iPhone at the end of October

At Tokyo Game Show 2023, Capcom revealed that Resident Evil Village will be released on October 30 for iPhone 15 Pro and iPad M1 generation and above. The game costs $39.99 — a $10 increase over the macOS version — and you can get the Winters’ Expansion DLC for an additional $19.99. The expected release date for Resident Evil 4 Remastered for iPhone, iPad and Mac has been recorded Capcom website It is listed as “Available in 2023”.

Capcom says pre-orders for both games will hit the App Store “soon.” The company says that if you order the Village and Winters expansion during the launch period, which the company will announce later, you will receive an additional costume for the character Rosemary Winters in the Shades of Rose DLC expansion.

While Universal Purchase isn’t available for Village, Capcom’s website notes that Resident Evil 4 will support the feature, meaning in-app purchases on one Apple platform can be downloaded and played on other platforms.

Capcom has shared some screenshots of the two games running on iOS or iPadOS.

And inside one look On the iPhone 15 Pro, the game seems to perform at the same level as high-end mobile devices like Steam Tech. To be sure: You’ll need an iPad Pro released in 2021 or later, an iPad Air released in 2022, or an iPhone 15 Pro or iPhone 15 Pro Max to run the Village, so you’ll need to upgrade to an Apple phone with bezels in Titanium if you want to watch Leon fight monsters and it’s fully compatible with your iPhone. will work.

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Capcom’s latest installment is a big part of survival horror games, with Resident Evil 4, Death Stranding, Assassin’s Creed Mirage, and the remake of Assassin’s Creed Mirage and The Division Resurgence at Apple’s latest event. Apple used these games to demonstrate the capabilities of its new phones.

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An exciting development.. The iPhone 16 turns out to be the iPhone Ultra and changes the rules of Apple’s game



An exciting development.. The iPhone 16 turns out to be the iPhone Ultra and changes the rules of Apple’s game

After the release of the new Apple phone series, new rumors and leaks started circulating about the iPhone 15 family, upcoming Apple products, especially the iPhone 16 series and what we can expect from them. There are big changes in the brand names. Based on the preference of many Apple fans to see the name Max together, Apple is expected to call its highest model “Ultra” instead of “Pro Max”. Bad brand names.

The iPhone 16 becomes the iPhone Ultra

According to reliable sources such as Majin Bu, a reporter for Apple Product Blog, the camera modules on the iPhone 16 may be compatible with the Vision Pro headphones, and these sources indicate that the iPhone 16 Ultra will come with three new configurations. The camera modules are compatible with Vision Pro headphones, which take the augmented reality experience to a whole new level.

The iPhone 16 becomes the iPhone Ultra

There’s also good news for battery life, as you no longer have to worry about running out of power. The standard version of the iPhone 16 comes with a 120Hz refresh rate and a neat feature to switch to millimeter wave mode to preserve battery life. Additionally, the display button available on the iPhone 16 Pro catches our attention, like this one. The Glance Bar is used on Microsoft’s Surface Duo 2, but it’s actually a physical button and not a digital button.

Previous leaks have indicated that the iPhone 16 series will come with virtual solid-state buttons and offer a variety of functions, and the Pro version is expected to have a 6.3-inch screen and impressive camera upgrades, including a 48-megapixel main camera and 5X. Polyprism telephoto camera. .

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The iPhone 15 series has 9 features that are a first for smartphones



The iPhone 15 series has 9 features that are a first for smartphones

By Heba Al Saeed

Monday, September 25, 2023 at 11:00 p.m

Company AOn the contrary Introducing the 2023 edition of Apple phones, the iPhone 15, iPhone 15 Pro, iPhone 15 Plus and iPhone 15 Pro Max are currently on sale, with a host of new features, some of which are considered first-of-its-kind smartphones.

9 features of the iPhone 15 series are currently not found in any other smartphone.

The first two phones have a titanium frame

The iPhone 15 Pro and iPhone 15 Pro Max come with a hybrid titanium-aluminum body that claims to use an “industry-first thermo-mechanical process.” The phones feature titanium bands with a new subframe made using 100% recycled aluminum. More durable and lighter.

Shooting at 24MP by default

Most phones with high-resolution sensors take pixel-stacked pictures, and the new iPhone 15 series is no different. Most phones stack images at 12 megapixels, while the default resolution of new iPhones is 24 megapixels, which turns out to be quite high. Resolution image. While retaining more detail compared to 12MP images.

World’s first chip manufactured in 3nm technology

Apple iPhone 15 Pro and iPhone 15 Pro Max are powered by the industry’s first 3nm chip, the A17 Pro chip. This makes the company’s new chip the first to use the 3nm process.

But that’s only part of it: the updated chip brings the biggest GPU redesign in Apple’s history, and it also offers faster performance and an improved neural engine with ray tracing support.

Integrated OIS and autofocus technology

In announcing the new 5X telephoto lens, Apple also introduced a new autofocus system – a 3D sensor that combines both OIS and autofocus, which moves in three directions and is a first for any smartphone. This, according to Apple, offers excellent image stabilization performance with 10,000 micro-motions.

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Customizable action button

The idea of ​​an extra button is not new, but a customizable action button actually allows users to assign their preferred action to it and use the phone more conveniently.

Users can choose to keep the mute key function or set it as camera shutter, audio recorder and many more options.

Shooting in 4K60 in RAW format

Apple iPhone 15 Pro and iPhone 15 Pro Max are the first phones to support 4K60 video recording in ProRAW. This allows users to record smoother videos with more detail and data for post-processing.

Supports 5X zoom with tetra prism lens body

With a new 5x telephoto lens with a focal length of 120mm, Apple has developed a tetraprism design that combines optical image stabilization with a 3D sensor shift module for autofocus.

Tetraprism rewinds the image four times to deliver a bright, detailed zoom shot.

Automatic portrait mode is another new feature

Apple has launched the next-generation Portrait of the iPhone 15 series.

The updated portrait mode on iPhones automatically captures depth data when it detects a person, animal or bird in the frame, or when users tap the subject to focus on it. It allows users to apply photo effects using the Photos app and adjust focus after the photo is taken.

Qi 2 is finally coming to smartphones and the iPhone 15 series is the first

Qi 2 wireless charging standards were announced earlier this year, and the iPhone 15 series is the first to offer them. It is a new improved wireless charging standard that has a magnetic force profile for improved wireless charging.

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