Which outcome arose from repeated wetting/drying of 18th-century ship timbers?

💡 Explanation

Progressive weakening arose because repeated moisture cycling causes the wood fibers to undergo HYGRAL FATIGUE, losing stiffness through microscopic cracking; therefore structural integrity decreases rather than buoyancy adjusting, because the mechanism targets material weakening.

• Which outcome occurs when Roman aqueducts experience exceeding hydrostatic thrust?
• Which risk increases when a historical rope bridge undergoes excessive wetting?
• Which outcome increased drastically within Ming dynasty crossbow armies when composite bowstrings reached yield strength during rapid firing?
• For 9th-century Chinese cannon using early gunpowder blends, which outcome predominantly limited projectile range?
• Which outcome resulted from the use of 'puddling' in 18th-century iron production furnaces?
• Which design modification compensated for increased wind loads during the construction of Gothic cathedrals?