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In which Muslim nation do men cover their faces, but women do not? Detailed answer

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In which Muslim nation do men cover their faces, but women do not?

The Tuareg, who live in the desert regions of Northwest Africa, are Muslim by religion, but retain many pre-Islamic customs. Tuareg women walk with an open face, and the traditional dress of men includes a bandage that leaves only the eyes open.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Where are the three adjacent lakes that periodically change color?

At the top of the Indonesian volcano Kelimutu are three lakes, each of which periodically changes color from turquoise to green, red and black. Such transformations are caused by volcanic gases that react with various minerals dissolved in water, thereby changing the color of the lakes.

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Random news from the Archive

Wind turbine efficiency increased 08.06.2014

By changing the design of the blades, General Electric engineers were able to improve the efficiency of wind turbines.

The work was carried out by General Electric researchers as part of a $2 million renewable energy project. GE's way to improve the efficiency of old wind turbines has proven effective and low cost.

A serious problem with modern wind farms is that they are not efficient enough - to replace one coal-fired thermal power plant, it is necessary to build a wind farm consisting of thousands of turbines occupying a large area. According to experts, the efficiency of wind turbines depends on the size of the blades and the height at which the rotor is located. The larger the rotor and the higher it is, the more efficient the windmill is. For this reason, in recent years, the height of wind turbines has been increased from an average of 15,2 m to 152 m.

General Electric engineers proposed cutting a 27-meter blade in half and inserting a 7-meter part into it, the contours of which exactly match the contour of the original blade. According to the company, this operation on the blades increases the performance of the wind turbine by 20% when operating with low wind speeds.

The modified blades have surpassed International Electrotechnical Commission (IEC) standards in both fatigue failure tests (6 million cycles completed) and static tests.

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