Tag: concrete

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Gathering 'concrete' evidence

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Tags: pyramid concrete
Physical sciences news // 02 April, 2008 01:17:00
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Even though they are among the best-known structures on Earth, the pyramids of Egypt may still hold surprises. This spring, an MIT class is testing a controversial theory that some of the giant blocks that make up the great pyramids of Giza may have been cast in place from concrete, rather than quarried and moved into position.
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