six-pillar tower made with straight cultivated chestnut wood pillars each measuring 1 meter in diameter, roads and graves. Archeologists have found holes with roots of burned chestnut trees that ...
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This mysterious iron pillar in India has been exposed to the elements for over 1,600 years. So why hasn’t it ever rusted?like the Eiffel Tower, by layers of special paint. Scientists both in India and abroad began studying the iron pillar in Delhi in 1912 to try to figure out why it hadn’t corroded. It wasn’t ...
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