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The largest iceberg began to drift

29.11.2023

The world's largest iceberg, known as A23a, has begun its journey for the first time in three decades, beginning to drift in the waters around Antarctica. This exciting natural event opens a new chapter in the history of A23a and raises questions about the impact of its drift on the environment and ecosystem of Antarctica.

The Antarctic giant has an area of 4 thousand square kilometers (about three times the area of Kyiv). After breaking off from the Filchner-Ronne Glacier in West Antarctica in 1986, the iceberg then became stuck in the Weddell Sea.

Currently, strong winds and sea currents are sending this ice mass northward, towards the northern coast of the Antarctic Peninsula.

Scientists emphasize that observing such a large iceberg in motion is rare. His route will likely take him into the Southern Ocean's "iceberg alley" and then possibly stranding him on South Georgia Island.

The transition could pose problems for local Antarctic fauna, as millions of seals, penguins and seabirds depend on the island to breed and forage for food. A shift in the iceberg could change this dynamic. Meanwhile, A23a could also continue to drift north towards South Africa, presenting a potential obstacle to shipping.

Scientists say the reason for the separation of the iceberg from the bottom is the thinning of the ice, which gave it additional buoyancy.

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American attack aircraft powered by alcohol 12.07.2012

The A-10 attack aircraft of the 40th Test Squadron of the US Army went down in history as the first aircraft to fly on a new type of fuel based on alcoholic raw materials. The plane took off without any problems and landed successfully.

The fuel, known as ATJ (Alcohol-to-Jet), is the third alternative fuel used by the US Air Force as part of reducing oil dependency and replacing the standard jet fuel JP-8. Other alternative fuels include synthetic kerosene derived from coal and natural gas, and biofuels derived from vegetable oils and animal fats. ATJ is a cellulose based fuel. It can be made from wood, paper, grass, etc. The sugars extracted from these materials are fermented into alcohol, which is then processed into aviation kerosene.

Currently, the US Air Force has fully certified synthetic kerosene and has almost completed the certification of biofuels, i.e. they can be used on all types of military aircraft. The first flight of the A-10 on ATJ fuel means that the US military will receive another source of an important resource, independent of the situation in the oil market.

The A-10 attack aircraft is an ideal platform for testing new fuel. Designed to survive on any battlefield, the aircraft has a dual fuel system, which allows you to feed one of the engines with experimental fuel, and the second with traditional fuel. This reduces the risk to the pilot as the A-0 can only continue flying with one engine running.

At present, the mixture of ATJ and JP-8 fuel has fully passed ground tests on the A-10. Next in line are several experimental flights on mixed and clean (only ATJ) fuels.

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