Which consequence results from stone's microcrack propagation in the Inca masonry?

💡 Explanation

Inca stone masonry experienced structural issues due to microcrack propagation—a form of brittle fracture—because cracks concentrate stress, therefore the building becomes more vulnerable to collapse, rather than cable degradation or changes to erosion affecting terracing.

• During early Chinese cast iron production, which inherent casting risk reduces overall cannon barrel integrity?
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• Which risk increased in Song Dynasty crossbows using cast iron?
• Which consequence occurs when Bronze Age smiths repeatedly re-melt bronze?
• Which consequence occurs when a surveyor misaligns a medieval Islamic astrolabe?
• Which risk sharply increases for late 15th century cast iron cannons during extended bombardments?