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Prehistoric Humans Worked in Flint Quarries

64 LastCallAn 11,000-year-old quarry where prehistoric people sourced the flint for their arrows and spearheads, as well as limestone, was identified between Jerusalem and Tel Aviv. The works provide evidence that well before prehistoric humans settled down, they were capable of manufacturing on what we can only call an industrial scale.

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Riddle Of Cement’s Structure Finally Solved

100 MIT 150After stone, concrete is the world’s most widely used construction material. Yet answers to some fundamental questions about the microscopic structure and behavior of this ubiquitous material have remained elusive.

 

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The 12,910-Mile Highway

64 LastCall 150What if you could drive from the United States all the way to England? Sound crazy?

 

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