How accurately is the Great Pyramid aligned?
The Great Pyramid's sides are aligned almost exactly with true north, south, east, and west, a stunning feat of precision for ancient engineers.
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- How long is the Three Gorges reservoir?
“The reservoir behind the Three Gorges Dam is about 600 kilometers long.”
Reference: Encyclopaedia Britannica
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What is the largest power station in the world?
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Did the Wright brothers build a wind tunnel?
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