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A technology for brewing cold coffee using a laser has A technology for brewing cold coffee using a laser has

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A technology for brewing cold coffee using a laser has been developed

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On hot days, many coffee lovers prefer cold brew coffee. It has a high caffeine content and good taste, but it has a drawback. Such a drink should be infused from 8 to 24 hours. But the development of scientists from the German University of Duisberg in Essen allows you to speed up the procedure at times.

A technology for brewing cold coffee using a laser has been developed

The researchers used a laboratory laser, tuned to give pulses of 125 picojoules for 10 picoseconds. After that, the laser pulse was passed through a mixture of ground coffee and water for about three minutes. According to the source, the beam passes through the drink up to 80,000 times per second.

The result is a coffee that is in no way inferior to the classic cold brew, but brews much faster. At the same time, the acidity index (one of the characteristics of coffee) does not differ much from the traditional method of preparation, and the caffeine level turned out to be closer to ordinary hot coffee.

A technology for brewing cold coffee using a laser has been developed

At the same time, scientists argue that “laser” coffee can be improved if it is brewed in this way for a few more minutes. It will be more flavorful and high in caffeine.

The team has high hopes for the commercialization of the technology and plans to work on mass-produced laser coffee brewing systems for coffee shop use.

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And how did you not think of this before? Asus figured out how to simplify cable management on motherboards

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And how did you not think of this before Asus

Asus has unveiled a new motherboard design that can solve one of the main problems when building a PC – the correct placement of cables. This design is called DIY-APE Revolution and involves the placement of power connectors, SATA ports, “combs” for connecting USB and sound on the back of the board.

And how did you not think of this before?  Asus figured out how to simplify cable management on motherboards

So far, only a video has been published that shows the concepts in black and white. This approach allows you to hide all the cable on the other side of the board.

And how did you not think of this before?  Asus figured out how to simplify cable management on motherboards

Judging by the video, the company can release boards based on Intel B660, B760 and H610 chipsets, as well as AMD B650 with such port placement. The project has already announced the participation of Asus, Sama, LianLI, CoolterMaster, Cougar, Phanteks and Jonsbo.

And how did you not think of this before?  Asus figured out how to simplify cable management on motherboards

This arrangement looks no worse than the Gigabyte Stealth. At the same time, DIY-APE Revolution is potentially an entire ecosystem. It is not yet known when ready-made boards of this form factor will enter the market, where they will be available and at what price.

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Scientists have topographical evidence of the existence of subglacial lakes on Mars

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Scientists have topographical evidence of the existence of subglacial lakes

European planetary scientists have found topographical evidence in images from the Mars Express probe that several subglacial lakes are hidden under the southern polar cap of the fourth planet in the solar system. This discovery contradicts recent statements by their US colleagues that there is no liquid water on Mars, the press office of the University of Cambridge said on Thursday.

Scientists have topographical evidence of the existence of subglacial lakes on Mars

The combination of radar images, computer models, and the topographical evidence we have obtained is a strong argument that at least one region of liquid water exists under the ice cap of the south pole of Mars. If so, then the interior of the planet must remain geothermally active in order to keep this water from freezing.Neil Arnold, a professor at the University of Cambridge (UK), said.

In July 2018, Italian astronomers working with instruments from the European Mars Express probe reported a surprising discovery. They were able to detect on radar images of the south pole of Mars traces of the existence of three subglacial lakes located at a depth of 1.5 km from the surface of the southern ice cap of the planet.

Subsequently, astronomers discovered several more similar anomalies in radar images, which led scientists to actively discuss the nature of these findings. Many planetary scientists immediately doubted these findings and suggested that the instruments of the Mars Express probe discovered deposits of clay or other rocks, and not subglacial lakes of water. This has generated a lot of controversy around radar anomalies.

In particular, at the beginning of 2022, US planetary scientists analyzed images from Mars Express and came to the conclusion that the liquid water reserves discovered by the probe are a kind of “radar mirage”. A group of European astronomers, led by Professor Arnold, have discovered topographical evidence that their fellow skeptics are wrong in their estimates.

As planetologists note, subglacial lakes that exist on Earth have a special effect on the topography of the ice surface in their vicinity. This is due to the fact that these reservoirs reduce the friction force between the base of the glacier and the rocks along which the ice mass moves, as a result of which it “sags” at the point where the under-ice reservoir is invisible to the eye, and then the glacier rises sharply.

Based on similar considerations, Professor Arnold and his colleagues calculated how the glaciers of Mars would behave under similar conditions. Scientists used this information to analyze detailed images of the southern polar cap of the fourth planet in the solar system at the points where Mars Express supposedly discovered subglacial reservoirs.

As it turned out, on the southern polar cap of Mars there are several regions at once with characteristic depressions and rises, similar to how subglacial lakes on Earth influence the topography of the area. The position of many of them coincides with the points where the radars of the Mars Express probe found traces of the existence of lakes. This, according to Professor Arnold and his colleagues, speaks in favor of the fact that liquid water on Mars exists rather than absent.

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AMD is preparing a graphics card with 2 GB of memory and a 32-bit bus? Radeon Pro W6300 already registered in the company’s driver

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AMD is preparing a graphics card with 2 GB of

AMD seems to have prepared another ultra-budget graphics card. There was no announcement of the novelty yet, but it has already been registered in the latest driver.

AMD is preparing a graphics card with 2 GB of memory and a 32-bit bus?  Radeon Pro W6300 already registered in the company's driver

The model is called Radeon Pro W6300, that is, it is a professional accelerator. It has an analogue in the form of a mobile card Radeon Pro W6300M, and you can also expect the appearance of the gaming RX 6300, especially since there have already been rumors about it.

Specifications are not yet known, but it is expected that both professional and gaming new items will receive 2 GB of memory with a 32-bit bus and 768 stream processors. These are the characteristics of the mobile Radeon Pro W6300M. Of course, this is the card of the most basic class, but it is still more productive than most integrated GPUs.

How much such an adapter might cost is anyone’s guess, but an RX 6400 with the same GPU but 4GB of memory and a 64-bit bus costs $160.

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