“Armored Turret Destroyed by Anti-Tank Mine Detonation”

The Russian army used an anti-tank mine in the Kherson region, detonating it from the top of its armored turret, which is the PTKM-1R.

His photo and video was published by the Russian agency ANNA, which recalled that the mentioned mine was first discovered in June 2021 at an exhibition held by Rosoboronexport for Russian exports.

Among the advantages of this glove mine is its ability to ambush a target and hit a tank from a long distance after the crew members have made sure that the road is clear of mines. The filling of the mine is capable of penetrating armor with a thickness of 70 mm.

A mine weighing 20 kg consists of a container and an explosive charge.

The mine is placed manually in the path of advancing tanks. As soon as the tank approaches it at a distance of 100 meters, its optical sensors and seismic sensors are triggered, which determine the distance to the target. The combat charge of the mine is ejected from the container when a tank approaches it at a distance of 50 meters, at an angle of 60 degrees and at a speed of 30 meters per second.

The mine rises to a height of 30 meters and starts searching for the tank after opening its wings and turning on its jet engine, then the radar and infrared sensors are activated and the live charge enters the tank’s armored turret from above. In the absence of a tank, the mine is blown up in the air.

Mine range 50 km, weight 20 kg, tank speed 50 km/h, target detection range 100 meters.

Source: Russian newspaper

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“Accidental Discovery: World’s Oldest Brain of a Vertebrate Found by Scientist!”

Paleontologist Matt Friedman was stunned when he discovered a remarkably detailed 319-million-year-old fish brain fossil while testing CT scans for a wider project.

“He had all these features,” says Friedman of the University of Michigan, “and I thought, ‘Is this really the brain of what I’m seeing?’

Usually, the only traces of this ancient life left are the hard parts of animals that are easier to preserve, such as bones, as the soft tissues break down quickly.

A scientist accidentally discovered the oldest brain of Any vertebrate https://t.co/tJWERU3Iqo

— ScienceAlert (@ScienceAlert) February 2, 2023

But in this case, a dense mineral, possibly pyrite, leaked out and replaced the tissue, which probably lasted much longer in a low-oxygen environment. This made it possible to scan what appear to be details of the cranial nerve and soft tissues of the tiny fish Coccocephalus wildi.

It is the only ancient specimen of its kind, so despite being in the hands of researchers since it was first described in 1925, this feature has remained hidden because scientists would not risk using invasive research methods.

Friedman explains: “Here we find the amazing preservation of a fossil that has been examined many times by many people over the last century. But since we have these new tools for studying fossils, they open up another layer of information for us.”

These prehistoric estuarine fish probably preyed on insects, small crustaceans and cephalopods, chasing them with flippers supported by bony rods called rays.

Rayfish, a subclass of Actinopterygii, make up over half of all spineless animals living today, including tuna and seahorses, and 96% of all fish.

This group of lobe-finned fish split off about 450 million years ago. C. wildi then went on its own evolutionary path among the fish populations that are still alive today, some tens of millions of years ago.

“The analysis takes this taxon out of the group that includes all extant ray-finned fish. Details of the brain structure of Coccocephalus have implications for the interpretation of neuromorphology in the early stages of the evolution of this major vertebrate lineage,” wrote University of Michigan paleontologist Rodrigo Figueroa and colleagues. in their newspaper.

Some features of the brain would have been lost due to the decay and conservation process, but the team could still identify certain morphological details. This allowed them to see that the evolutionary path of this prehistoric forebrain was more similar to ours than to the rest of living ray-finned fish.

Friedman notes: “Unlike all living ray-finned fishes, the brain of Coccocephalus is folded inwards. Therefore, this fossil reflects the time before this characteristic feature of the ray-finned fish brain evolved. This gives us some restrictions on when this trait evolved. . .

Researchers are keen to scan other fish fossils in museum collections for other signs of soft tissue that may be lurking inside.

“The important takeaway is that such soft parts can be preserved, and they can be preserved in the fossils that we have for a long time — this is a known fossil from more than 100 years ago,” Friedman says. It is very important to preserve the physical samples. Who knows what else might come of it. What will people do with the fossils in our collections now, 100 years from now?

This study is published in the journal Nature.

Source: Science Alert

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Samsung Testing Strength in Weak Market with Galaxy S Phones

Samsung Electronics has revealed its latest premium smartphones, in a test of the strength of its brand, in one moment in including the telephony market mobile it is going through unprecedented weakness.

The Galaxy S23 smartphone category has better cameras and faster chips than its predecessor, but analysts said the prime sales will face weak demand as consumers spend less in luxury goods due to rising inflation.

The Ultra S23, unveiled by the South Korean company on Wednesday, has Samsung’s first 200-megapixel camera sensor, which provides sharper images after zooming in.

And this category of phones was based on the “Snap Dragon 8 second generation” mobile phone processor manufactured by Qualcomm, which is faster than the chips used in the “S22” category.

The “S23” phone is the first Samsung phone to use the “GeForce RTX 4070” graphics card, made by NVIDIA, for games that require a powerful processor and playing games via streaming in direct. Many consumers judge the quality of the phone in based on these functions.

In the US, the base price of the “Galaxy S23” will start at $799, and the price of the highest specification “Galaxy S23 Plus” version is $999, while the advanced version “Ultra S23” price is $1199 .

Samsung has kept prices at the same level as last year’s versions, despite the increase in the cost of components.

But global smartphone shipments showed the biggest decline on record in a single quarter in the period October-December, in a 18.3% drop from a year earlier to 300.3 million units, according to data from research firm IDC last month.

Numbers put in doubt the prospects for a modest recovery in the telephony market mobile quest’year.

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ChatGPT: The Fastest Growing Chat App in History

New Missile Submarine to Join Spanish Navy in 2021

The Spanish Ministry of Defense announced that the country’s Navy should receive a new Isaac Peral combat submarine of the modified S-81 class this year.

According to available information, the Spanish Minister of Defense recently visited the Navantia shipyard to check the progress of the project for the construction of modified S-81 diesel-electric submarines, and the Minister indicated that the delivery of the first submarine of this type to the Army may be slightly delayed due to some technical problems. .

The Spanish Ministry of Defense had previously indicated that the Isaac Peral, the first S-81 type submarine, would be delivered to the Spanish Army this year and was expected to be delivered between April and May next, but did not elaborate. the exact date of the delivery process.

Isaac Peral, one of 4 S-81 class combat submarines developed for the Spanish Army, was first launched in the spring of 2021 and has since gone through several stages of testing.

The underwater displacement of this submarine is 3372 tons, it can dive to a depth of 460 meters, move at a speed of 19 nautical knots and cover a distance of 5000 nautical miles in each task.

Source: Weapons of Russia

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Facebook’s VR Division Suffers $13.72 Billion Loss in 2022

Meta, the company that owns Facebook, is having a good day today because its sales and user activity for the last quarter of its fiscal year (2022) were better than expected. But the company needs to make money from its VR business. The company is losing billions of dollars because of it.

Meta’s stock is going up in after-hours trading today because it reported pretty good financial results for the fourth quarter. However, its VR division, Reality Labs, didn’t have such good news because it’s still losing money at a shocking rate. Today, the company confirmed that VR and metaverse development cost them more than $4 billion in the last quarter of 2022. And in 2022, it lost more than $13 billion trying (and failing) to build a metaverse that people would want to visit.

Meta, on the other hand, made $32.1 billion across all of its departments and apps.

Decrypt. Co says that Meta’s Reality Labs only made $727 million in the last few months of 2022. Compared to the billions of dollars spent on the division in the same year, that could be better, but it’s worse than you might think. This is 17% less than what the division made during the same time in 2021. Ouch.

Remember that Facebook’s leading metaverse software, Horizon Worlds, has been a huge failure. Most of the worlds inside of it are empty or barely played, according to reports. Not only that, but the company’s employees need to use it more. A leaked internal memo shows that Meta employees don’t like using Horizons Worlds because it has bugs and other quality problems.

The Oculus Quest 2 headset is Reality Labs’ only big success. Many people saw it as a cheaper alternative to expensive PC and console VR headsets, and it could be used on its own. But in July, Meta raised the price of that cheap headset by $100, so the 128GB model now costs $400, and the 256GB model now costs $500.

Meta fired 11,000 people in November 2022. They said the “macroeconomic downturn, increased competition, and ads signal loss.” Zuckerberg said he was to blame for the layoffs, but he didn’t say how much money the company was still spending on VR and metaverse development when he announced the layoffs. The company has spent tens of billions of dollars over the past few years trying to make a VR-powered metaverse a reality.

And now, in February 2023, after laying off many people and continuing to lose money, it only has a copy of PlayStation Home that doesn’t look very good and does little.

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Galaxy S23 Ultra First Look

This year’s first Samsung Galaxy Unpacked event was held in San Francisco’s Masonic Auditorium in front of an audience. It was the first Samsung event held in person in three years.

It started at 1 p.m. ET/10 a.m. PT on Wednesday, February 1, with some exciting news.

Samsung’s updated lineup is led by the Galaxy S23 Ultra, which has a slightly changed design, a 200-megapixel primary camera sensor, and more storage for the same price as last year. It costs $1,199.99, the same as last year, but it comes with 256MB more storage.

In years, Samsung is making the most significant change to the camera on the Galaxy S23 Ultra. The new top-of-the-line phone has a camera with 200 megapixels, which is about twice as many pixels as the Galaxy S22 Ultra. The phone was shown off for the first time on Wednesday at Samsung’s Unpacked event. It starts at $1,200 (£1,249, AU$1,949). It will be available on February 17, and you can order it right now.

Samsung’s latest attempt to get people to upgrade is the Galaxy S23 line, which includes the $1,000 Galaxy S23 Plus and the $800 Galaxy S23. The Galaxy S23 line also includes the $1,000 Galaxy S23 Plus. Samsung just announced a new image sensor with the exact resolution as the 200-megapixel camera on the Galaxy S23 Ultra, so it’s not a big surprise that the Galaxy S23 Ultra also has a 200-megapixel camera.Samsung is going after photographers who want a big screen and a great camera with the Galaxy S23 Ultra.

The Galaxy S23 Ultra has standard updates like a new processor, new colors, more storage space for the base model, and more parts made from recycled materials.

The 200-megapixel camera on the Galaxy S23 Ultra is a significant improvement. The most considerable camera improvement Samsung has made in years, since the last three generations of Galaxy S Ultra phones, starting with the Galaxy S20 Ultra in 2020, have had main cameras with 108 megapixels.

But the number of megapixels doesn’t tell you everything. Image quality is also affected by the camera’s sensor size, speed, and the algorithms used to process images, so we’ll have to test the phone to see if this is a huge step forward.

These algorithms are a big part of why the camera on the Galaxy S23 Ultra is better. The head of Samsung’s visual solutions team, Joshua Cho, said that AI plays a more significant role in everything from the camera’s night mode to how it captures high dynamic range.

By default, the Galaxy S23 Ultra takes photos with a resolution of 12 megapixels. It combines four 4×4-pixel squares into one larger pixel, called “pixel binning.” This, along with the fact that each pixel works better, lets the sensor pick up more light, which could be helpful when shooting in dark places. You can also shoot at the full 200-megapixel resolution, which Samsung says is excellent for people who want to make big prints of their photos. You can also take pictures with a 50-megapixel solution if you want something in between. You could also shoot at the sensor’s full resolution on older Galaxy S Ultra phones, but if you did that, you’d have to deal with very large file sizes.

All the new Galaxy S23 phones have front-facing cameras with a 12-megapixel sensor, which is better than the 10-megapixel sensor on the S22 and S22 Plus but less than the 40-megapixel sensor on the S22 Ultra. Instead, Samsung says that the selfie camera uses artificial intelligence to recognize objects better to improve images based on what they are. That means it should be better at telling people apart based on their backgrounds.

The Galaxy S23 Ultra has the same zooming features as its predecessor. It can zoom in with an optical zoom of 3x or 10x and a digital zoom of up to 100x. Like the S22 Ultra, the S23 Ultra does this with the help of two 10-megapixel telephoto cameras. Even though night mode was a big deal for the Galaxy S22 line, Samsung says that the Galaxy S23 Ultra can take photos in the dark even better than before, with even more brightness.

All of the models have a small change to how they record video. For example, the S23 family can shoot at 8K resolution at 30 frames per second. That’s faster than the S22 Ultra, which could only record at 24 fps at the exact resolution. Adobe says that for broadcasting live footage, 30fps is usually better than 24fps, which makes sense given that Samsung is trying to appeal to social media influencers, streamers, and Gen Z shoppers. You will also be able to record 1080p video at 120fps instead of 60fps, making slow-motion shots look better.

Samsung also says that its optical image stabilization has gotten twice as good. I found that the iPhone 14 Pro’s Action Mode worked better during my testing than Samsung’s Super Steady mode. I’d like to see how much of a difference that makes. Samsung says that the S23 Ultra can also take videos from a wider angle.

However, Samsung may not have added any new shooting modes to the Galaxy S23 line. Since the S23 Ultra emphasizes camera quality, I’d like to see new tools and features that better use the new hardware.

But Samsung’s external camera apps, Expert Raw and Camera Assistant are doing something interesting. After you’ve downloaded these apps for the first time, the different camera settings will be built into the app that came with your phone. That could make it easier for photographers who want more editing options to change the look and feel of their photos without having to switch between apps.

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