Which mechanical risk increases in Viking longships when poorly treated sails freeze?

💡 Explanation

Sailcloth delamination risk grows because cyclical freezing introduces fatigue cracking. This weakens adhesion via thermal expansion differences, therefore the layers separate, rather than only weakening the structural compounds used to bind the woven materials together.

• Which consequence results from sail leech line slippage during medieval voyages?
• Which risk increased for Roman legionaries during sieges when using the 'testudo' formation against defenders?
• Which outcome occurs when a Roman aqueduct siphon's discharge elevation is significantly higher than its intake elevation?
• Which structural compromise allowed Roman arch bridges to span wider gaps compared to earlier stone beam bridges?
• Which consequence resulted from high phosphorus content in early Chinese cast iron crossbow triggers?
• Which navigational risk increases when a sextant's mirrors misalign at sea?