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Scientists have discovered a giant cloud of dust and gas Scientists have discovered a giant cloud of dust and gas

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Scientists have discovered a giant cloud of dust and gas near the event horizon of a black hole at the center of the Galaxy

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Scientists have discovered in the immediate vicinity of Sgr A*, the supermassive black hole at the center of the Milky Way, a giant cloud of gas that orbits it in just 70 minutes and moves only three times slower than light. This was announced on Thursday by the press service of the European Southern Observatory (ESO).

Scientists have discovered a giant cloud of dust and gas near the event horizon of a black hole at the center of the Galaxy

We assume that we have discovered a large cloud of gas that revolves around Sgr A* in an orbit comparable in diameter to the distance between the Sun and Mercury. This accumulation of matter makes one revolution in just 70 minutes. This means that it is moving at 30% of the speed of light.“, – said Maciej Wilgus, a researcher at the Radio Astronomy Institute in Bonn (Germany).

At the center of the Milky Way’s core is the black hole Sgr A* [Стрелец А*], whose existence astronomers learned in the early 1990s from the way its gravity affects the orbits of its neighbors. Over the next three decades, astronomers discovered that it was surrounded by several dozen stars and several large clouds of gas, periodically approaching and passing at a dangerous distance from it.

Vilgus and his colleagues have discovered another large cloud of gas that orbits a supermassive black hole at a minimum distance from the event horizon. Scientists made this discovery while observing the vicinity of Sgr A * using the ALMA microwave telescope installed in the high-altitude Chilean observatory Chajnantor.

These observations, as the scientists note, were originally part of a large scientific project aimed at obtaining images of the “shadow” of a supermassive black hole as part of the Event Horizon Telescope project. In the process of analyzing these data, astronomers drew attention to the fact that in the images they collected, there is not only Sgr A *, but also another object that was not in the vicinity of the black hole before the X-ray outburst in April 2017.

Analysis of images and data indicated that a large cloud of gas and dust, heated to very high temperatures, rotates around the supermassive black hole. It was only 70 million kilometers away from the singularity point, which is only five times the gravitational radius of Sgr A*.

Such a close proximity of this accumulation of gas to a black hole leads to the fact that it rotates around Sgr A * at a record high speed, only three times slower than the speed of light. Such rapid movement and interactions with magnetic fields in the vicinity of a black hole heat up a cloud of gas to superhigh temperatures, which causes it to radiate energy in the form of X-rays and infrared waves.

Scientists hope that subsequent observations will help them confirm the existence of this cloud of gas and study its properties in detail. This information will help astronomers for the first time to study in detail how magnetic fields are arranged in the vicinity of supermassive black holes, which is important for revealing the nature of their emissions.

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Headphones

AirPods Pro 2 not needed? The original AirPods Pro also got an adaptive transparency mode

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AirPods Pro 2 not needed The original AirPods Pro also

Apple has released a beta version of iOS 16.1, which makes available on the original AirPods Pro headphones the adaptive transparency mode introduced in the second generation AirPods Pro.

As you can see in the screenshot, original AirPods Pro users who updated to the AirPods 5A304A beta firmware can now see the Adaptive Transparency Mode option in AirPods Pro settings.

AirPods Pro 2 not needed?  The original AirPods Pro also got an adaptive transparency mode

AirPods Pro 2 features a new H2 chip, longer battery life, a new charging case, and a new earbud size to better fit the wearer’s ear. Users can charge AirPods Pro using the Apple Watch charger, MagSafe chargers and Qi-certified chargers are also compatible.

The adaptive transparency mode can significantly reduce the intensity of loud sounds such as whistling or power tools, while still allowing users to hear ambient sound well. It is not known how well this feature will be carried over to the original AirPods Pro, as the original AirPods Pro only had the H1 chip, and Apple has stated that adaptive transparency is provided by the H2 chip. Many AirPods Pro 2 users admire Apple, calling it “obsessed with details.”

AirPods Pro 2 not needed?  The original AirPods Pro also got an adaptive transparency mode

Apple iOS 16.1 also includes battery percentage for more iPhone models such as the iPhone 11 and iPhone 13 mini. Apple has changed the battery indicator to a dynamic icon.

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News

Xiaomi’s latest waterproof razor is even more efficient and costs less than $15

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Xiaomis latest waterproof razor is even more efficient and costs

Xiaomi has launched the latest Xiaomi Mijia S101 electric shaver with three floating heads, which is offered in China for just $13.9.

According to the official presentation, the shaving efficiency of the Xiaomi Mijia S101 being is increased compared to its predecessors: all thanks to the new design of the blades. This allows you to shave the stubble in fewer passes.

Xiaomi's latest waterproof razor is even more efficient and costs less than $15

Xiaomi Mijia S101 received three heads with double knife rings, which are superior in area to solutions with three heads, but one ring on each. Three heads move independently of each other, bending around the line of the chin and at the same time shaving the stubble at different angles.

In terms of battery life, Mijia Electric Shaver S101 has a built-in high-performance lithium-ion battery that lasts for two months with a minute of daily use.

Xiaomi's latest waterproof razor is even more efficient and costs less than $15

The shaver can be fully charged in 1.5 hours via USB-C. It is waterproof.

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Laptops

The Asus Zenbook 17 Fold OLED, the world’s first 17.3-inch foldable laptop, goes on sale

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The Asus Zenbook 17 Fold OLED the worlds first 173 inch

Asus announced the start of sales of its flagship Zenbook 17 Fold OLED (UX9702) laptop with a flexible 17.3-inch OLED display, which was announced at the beginning of the year at CES 2022.

The laptop received a flexible display with an aspect ratio of 4: 3 with a resolution of 2560 x 1920 pixels with a refresh rate of 60 Hz. It can be folded in half to give two 1920 x 1280 pixel displays with a 3:2 aspect ratio. There is no bezel between the screens. The screen is Dolby Vision certified and reproduces 100% of the DCI-P3 range.

The Asus Zenbook 17 Fold OLED, the world's first 17.3-inch foldable laptop, goes on sale

The hinge provides an opening angle of up to 180 degrees, while it can withstand 30,000 opening and closing cycles. If you open and close it 10 times a day, it should last about 8 years.

Inside is a 12th Gen Intel Core i7-1250U processor with Intel Iris Xe graphics, 16GB LPDDR5-5200 RAM, and a 1TB PCIe SSD. The battery has a capacity of 75 Wh and comes with a 65 W charger.

The Asus Zenbook 17 Fold OLED is only about 8.7mm thick when unfolded (17.4mm when folded). The weight of this laptop is only about 1.5 kg, and the diagonal is about 12.5 inches. Asus Zenbook 17 Fold OLED received an array of four microphones and two cameras.

The Asus Zenbook 17 Fold OLED, the world's first 17.3-inch foldable laptop, goes on sale

The kit comes with a Bluetooth version of the ErgoSense keyboard with a built-in touchpad and the ability to connect to two devices at once.

In China, the price is $2,800.

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