Sports and athletes - Racing cars. Crosswordist's Handbook

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Reference book crossword. Quick word search by mask. racing cars

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Crosswordist's Handbook

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Sports and Athletes / Sports / Racing Cars

(4)

KART - a small car without a body

(5)

BUGGY - cross-country racing car

BOLID - fast car

(6)

NASCAR

(7)

INDICAR - a car participating in the races of the same name (Indianapolis - USA)

(8)

DRAGSTER

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Random news from the Archive

Hydrogen from gold and rust 23.05.2013

Duke University engineers have developed a new way to produce pure hydrogen that could help solve the problem of unsustainable fossil fuels. There is a lot of hydrogen in the environment, but the production and transport of molecular hydrogen on an industrial scale is still an expensive and complicated matter. Moreover, with modern technologies for the production of hydrogen, carbon monoxide is often a by-product, which is toxic to humans and animals.

For the first time, scientists have managed to create a catalytic process for reforming petroleum products, which reduces the formation of harmful CO to almost zero. The new process produces hydrogen at much lower temperatures, with carbon dioxide and water as by-products. It should be noted that despite CO2 emissions during hydrogen production, atmospheric pollution by this greenhouse gas will even decrease, since hydrogen burns cleanly, with the formation of water.

The new hydrogen production process is based on the use of nanoparticle catalysts made of gold and iron oxide (rust). This is the know-how, because until now gold has been used as the only catalyst, while engineers at Duke University have used iron oxide as an enhancer of the catalytic reaction.

Thanks to the new catalyst, carbon monoxide emissions are negligible in the production of hydrogen: less than 0,002% or 20 parts per million. This not only reduces atmospheric pollution, but also allows the production of pure hydrogen suitable for use in fuel cells. What's more, the new catalyst has been running for over 200 hours without any sign of reduced efficiency or increased COXNUMX emissions.

While the exact mechanism of the catalyst is unknown - until now it was believed that iron oxide serves only as a supporting structure for gold. However, it turned out that it is able to directly influence the reforming reaction of petroleum products. Scientists believe that this is due to the size of gold nanoparticles and plan to continue experiments in this direction. It remains to be hoped that they will finally be able to find a sufficiently effective and safe method for the industrial production of hydrogen fuel.

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