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This is what the supermassive black hole at the center This is what the supermassive black hole at the center

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This is what the supermassive black hole at the center of our galaxy looks like. EHT astronomers have obtained the first photo proving the existence of this object

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Three years after the publication of the first-ever photo of a black hole, astronomers from the Event Horizon Telescope (EHT) project published the second such image. This time, scientists have captured a supermassive black hole at the center of our own galaxy.

This is what the supermassive black hole at the center of our galaxy looks like.  EHT astronomers have obtained the first photo proving the existence of this object

To begin with, it is necessary to clarify that it is more correct to talk about photographing the shadow of a black hole, since the object itself does not emit anything, therefore it is impossible to photograph it. It also needs to be reminded that this is not about classical photography. The Event Horizon Telescope (EHT) is an amalgamation of many radio telescopes across the earth, resulting in a “virtual” telescope “Earth-sized”.

Whatever it was, now we can appreciate our own supermassive black hole. The object lies at the center of our galaxy, only about 27,000 light-years away. The mass of our black hole is estimated at 4 million solar masses. For comparison, the black hole at the center of the galaxy Messier 87 (M 87), which was photographed three years ago, has a mass of about 6.5 billion solar masses and is located at a distance of about 54 million light years. Despite the huge difference in distance, the new photo looks about the same, if not a little worse.

This is what the supermassive black hole at the center of our galaxy looks like.  EHT astronomers have obtained the first photo proving the existence of this object

The thing is that Sagittarius A*, as it is customary to call the object in the center of our galaxy, is much more variable than its orders of magnitude larger counterpart. Data on both black holes were collected simultaneously: over five nights in 2017. But, as we can see, it took three years more to process information about our object. If the black hole in the center of M 87, due to its size, practically did not change during the entire time of observations (we are talking about changes in clumps of matter around the hole), then Sagittarius A* changed every 5-15 minutes. Because of this, scientists had to take thousands of photographs, and the one we see today is an average image.

The current image is also important because there were previously various theories according to which there is no supermassive black hole in the center of our galaxy. But now we can confidently say that it is.

At the time of data acquisition in 2017, the EHT system consisted of eight telescopes. Now there are 11 of them, and astronomers have already used the replenishment to obtain new data, so we can see a clearer image of our black hole later.

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Components

Nvidia has declared war on counterfeit graphics cards from China. The company cooperates with trading platforms

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Nvidia has declared war on counterfeit graphics cards from China

Nvidia has decided to start fighting counterfeit video cards that are sold in large quantities on various Chinese marketplaces, and recently outside of the Middle Kingdom.

Nvidia has already partnered with leading Chinese e-commerce companies to rid the market of fake GeForce accelerators.

Nvidia has declared war on counterfeit graphics cards from China.  The company cooperates with trading platforms

The problem of counterfeit video cards is indeed quite serious. A number of Chinese brands that have sinned with such activities, including 51RISC, Corn or MLLS, were previously blocked even inside China, but such cards still end up on sale, including in the US via eBay, Amazon or even NewEgg.

It should be noted here that we are not always talking about a fake in the literal sense. Sometimes Chinese manufacturers repaint memory chips to hide the fact that the adapter is not new at all, sometimes you can find a desktop adapter based on a mobile GPU. In some cases, the cards are quite working, but there are always reservations and nuances.

Nvidia itself, of course, denies any involvement in this phenomenon. The company’s initiative to combat counterfeit cards is already bearing fruit. Platforms JD.com and Douyin have already managed to remove such accelerators from their assortment. These were mainly cards from the GeForce GTX 10 and RTX 20 lines. And the Pinduoduo and Tmall platforms implemented a policy for used products and refurbished devices on their websites.

Nvidia also gave a number of tips to consumers. Firstly, the company advises buying the latest GeForce RTX 40. Allegedly, based on the fact that there are no fakes for them yet. Secondly, Nvidia advises buying 3D cards from well-known brands. Thirdly, those who do not want to buy RTX 40 or do not have funds for such cards can pay attention to the RTX 30 line, but it makes sense to choose versions that came out after the end of the cryptocurrency boom. For example, RTX 3060 with 8 GB of memory.

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The design of the new Porsche Cayenne has been declassified. It will get Taycan-style headlights.

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The design of the new Porsche Cayenne has been declassified

Yesterday, high-quality images of the interior of the new Porsche Cayenne appeared on the Web, and today images have been published that allow you to evaluate the design of the car itself. It is reported that these pictures are taken from the interface of the media system of the updated Cayenne.

The design of the new Porsche Cayenne has been declassified.  It will get Taycan-style headlights.

The most important innovation will be the headlights, as if borrowed from the Taycan. The front bumper will change somewhat – it will become more massive and will receive large vertical jumpers. At the back, the lights will merge with the LED strip connecting them (here, by the way, there is also an obvious similarity with the Taycan lighting technology).

The design of the new Porsche Cayenne has been declassified.  It will get Taycan-style headlights.

The SUV should also receive a modified suspension and updated engines. The official premiere will take place on April 18 at the Shanghai Motor Show.

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Components

1300 W, Japanese capacitors and no adapters for connecting GeForce RTX 40. Chieftec Polaris Pro power supply introduced

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1300 W Japanese capacitors and no adapters for connecting GeForce

Chieftec has introduced a fully modular, powerful and modern Polaris Pro power supply (PPX-1300FC-A3). From the catalog number, you can understand that the power is 1300 watts.

1300 W, Japanese capacitors and no adapters for connecting GeForce RTX 40. Chieftec Polaris Pro power supply introduced

The novelty is distinguished by compliance with the ATX 3.0 specifications, which, among other things, means the presence of a new 12VHPWR power connector. That is, with this PSU, when connecting the corresponding video cards, you do not need to use adapters.

The novelty is capable of delivering up to 108.3 A current through a single 12 V line. Also worth noting is the 80 Plus Platinum certificate and a large 135 mm fan, which is configured in such a way as to provide high performance with low noise levels.

The manufacturer also focuses on the fact that the component base is built using exclusively high-quality Japanese capacitors.

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