Biofuels - good or bad? Detailed answer

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Biofuels - good or bad? Detailed answer

Big encyclopedia for children and adults

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Biofuels - good or bad?

Biofuel is an alcohol obtained from plants - cane, corn, rapeseed, etc. Gasoline is saved, which is good. Emissions of harmful substances are reduced - that's great. But crops are used to produce biofuels, leaving less acreage for food production, which is already in short supply in the world.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Which Russian tsar ordered the wooden Kremlin to be moved along the river to capture an enemy city?

To prepare for the conquest of the Kazan Khanate, Ivan the Terrible carried out a unique military operation, moving the wooden Kremlin. The fortress was dismantled in the city of Myshkin near Uglich, each log was marked, floated down the Volga and fished near the mouth of the Sviyaga River, where Russian troops took up positions. In 24 days, 75 thousand people assembled from those logs a fortress comparable to the Moscow Kremlin. She received the name Sviyazhsk and became a springboard for the capture of Kazan.

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Random news from the Archive

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Panasonic has announced the addition of the DMC-FZ70 to its Lumix range of digital cameras. Equipped with a 20mm to 1200mm equivalent focal length lens, this camera's 60x optical zoom is more than double that of its predecessor, the Lumix DMC-FZ60. The optical scheme of the lens includes 14 elements in 12 groups, among them six are aspherical, and three are made of low dispersion glass. As for the maximum aperture of the lens, it varies from F / 2,8 to F / 5,9.

It goes without saying that with this optical zoom, the camera is equipped with an optical stabilization system that also works when shooting video. The Panasonic Lumix DMC-FZ70 uses a 1/2,3-inch CMOS image sensor with a resolution of 16,8 MP and a Venus Engine image processor. The camera allows continuous shooting at 9 frames per second in maximum resolution and Full HD video recording at 30 frames per second.

The novelty supports iA intelligent shooting mode, and also allows you to apply 15 different effects to photographs. It also supports saving pictures in RAW format.

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The Panasonic Lumix DMC-FZ70 is priced at $399 in the US.

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