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The Chinese tested the engine for a hypersonic aircraft powered The Chinese tested the engine for a hypersonic aircraft powered

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The Chinese tested the engine for a hypersonic aircraft powered by coal

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Chinese engineers tested a hypersonic engine on a mixture of coal dust and ethylene. South China Morning Post wrote about it.

The Chinese tested the engine for a hypersonic aircraft powered by coal

Coal mined from the ground burns with an even flame at a high temperature and is safe to store. However, finely dispersed coal dust suspended in the air is extremely explosive and can cause great damage to the mine.

Specialists from the Nanjing University of Science and Technology decided to use its ability to detonate in a rocket engine. In one ground test, an experimental device using an inexpensive mixture of coal and ethylene detonated at a flame front speed of more than two kilometers a second, six times the speed of sound. Ethylene is one of the most common refinery products, and coal is currently the largest contributor to China’s electricity generation.

Importantly, the researchers launched the engine prototype over a wide range of temperatures under conditions of oxygen deficiency and excess. In all cases, the prototype showed stable launch and detonation series. This means that this type of engine and fuel mixture will be suitable for flying at different speeds and altitudes. For example, a hypersonic aircraft with such an engine will be able to take off and land at conventional airfields at low speeds, which is impossible or difficult to implement for other types of hypersonic engines.

The authors of the development hope that with the help of their engine it will be possible to reduce the cost of hypersonic flights.

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The whitest paint in the world just got better. Now it can be used to paint cars and planes

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The whitest paint in the world just got better Now

The unique white paint, created by scientists at Purdue University, was recognized in the Guinness Book of Records in 2022. The unique composition is able to keep the surface cool, reducing the need for air conditioning.

Now researchers at Purdue University have developed a new compound that is thinner and lighter, ideal for removing heat from not only cars but other vehicles, including trains and planes.

The whitest paint in the world just got better.  Now it can be used to paint cars and planes

“Everyone has contacted me, from spacecraft manufacturers to architects to clothing and footwear companies,” said Xiulin Zhuang, professor of mechanical engineering and paint developer at Purdue University. “They basically had two questions: where can I buy it and can I make the layer thinner?”

The unique paint uses barium sulfate nanoparticles that can reflect 98.1% of sunlight, as well as cool outdoor surfaces by more than 4.5 degrees Celsius relative to the environment. However, for the coating to work effectively, its thickness had to be at least 400 microns.

The whitest paint in the world just got better.  Now it can be used to paint cars and planes

Thickness of old and new layer

Scientists experimented with other materials that could scatter sunlight. The latest paint formula includes hexagonal boron nitride as a pigment. This substance is most often used in lubricants. The resulting composition is able to meet all the declared parameters and reflect up to 97.9% of sunlight when applied in a layer with a thickness of 150 microns

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This battle will be legendary: Canon is determined to compete with ASML in the lithographic equipment market. She has already created a new technology. for this

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This battle will be legendary Canon is determined to compete

ASML has almost a monopoly in the market for lithographic equipment for the production of semiconductors. And now the Japanese manufacturer Canon intends to compete with it. A plant for the production of new lithographic equipment will be built in Japan. The estimated investment will amount to $345 million, and production will start in the spring of 2025.

This battle will be legendary: Canon is determined to compete with ASML in the lithographic equipment market.  She has already created a new technology.  for this

It is important to note that for the production there will use a technology called nanoprinting lithography. It eliminates the need for EUV lithography (deep ultraviolet lithography), which requires a lot of energy and is expensive. EUV lithography machines only produce ASML.

Canon’s new technology will reduce the cost of production due to the fact that nanoprinted lithography can reduce production costs by up to 40% and energy consumption by up to 90%.

Note that the technology of nanoprinted lithography was developed more than 10 years ago, it allows you to create schemes for 10 nanometers with a potential reduction to 2-3 nanometers. However, implementation issues forced the market to switch to EUV lithography. If the technology can prove its worth, this can lead to a significant reduction in the cost of microelectronics.

Earlier it was reported that the US authorities require ASML Holding NV not to supply equipment for the production of chips to China.

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“Definitely one of the best remakes of the decade” – fans are delighted with the gameplay trailer of the Dead Space remake

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Definitely one of the best remakes of the decade

Electronic Arts and developers EA Motive have released a gameplay trailer for the Dead Space remake, which is based on the Frostbite engine and will bring improved gameplay.

According to the plot, the events of Dead Space unfold on board the Ishimura ship. Engineer Isaac Clark is confronted by Necromorphs – the dead crew members of the Ishimura, resurrected and turned into monsters.

Definitely one of the best remakes of the decade

The video, which lasts more than two minutes, is full of gameplay elements: battles with necromorphs, exploration of the Ishimura, scenes in weightlessness.

User response has been very positive, with some of the reviews listed below:

  • Definitely one of the best remakes of the decade.
  • The new graphics are great and the weightless effect from Dead Space 2 looks phenomenal
  • I never thought that I would have to subject myself to such horror again, and yet here we are.
  • I’m excited about the remake. This game has become a legend
  • The intro to this game is still one of the creepiest in history.
  • I’m fucking excited about the remake
  • Everything about this game is amazing. Sound effects, atmosphere, voice acting, enhancements and game mechanics… all of it. I will definitely buy it

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