During a Roman siege, which outcome results when supporting timber foundations under a wall are ignited?

💡 Explanation

Igniting timbers causes localized subsidence because charring reduces their load-bearing capacity via section modulus reduction from the fire, resulting in uneven foundation settlement. Therefore, the undermined wall is weaker than before, rather than catapult ranges improving.

• Which outcome arises when early Chinese iron bridge chains experience significant temperature fluctuations?
• Which structural risk increases when ancient Peruvian masonry tilts outwards?
• Which outcome reduced the range of Viking exploration when replacing wool sails with inadequate rope?
• Which risk increases when bronze sickle blades are repeatedly used in saline-rich agricultural soils of ancient Mesopotamia?
• Which mechanism limited early 18th-century warships from maintaining high speed in heavy seas?
• Which consequence develops when diurnal temperature oscillation stresses moisture-sensitive pietra dura inlay within Mughal structures?