Which structural problem rapidly reduces the lifespan of historic Viking-age 'rope bridges'?

💡 Explanation

Rope abrasion caused by dynamic load reduces bridge lifespan, because repeated flexing grinds the ropes; therefore integrity degrades faster from use, rather than corrosion because suitable metals don't naturally interact that severely.

• Which optical outcome critically limited the accuracy of early astrolabes using pinhole sights?
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• Which outcome commonly resulted from differential tensioning during sail adjustment on longships?
• Which condition most greatly reduces the lifespan of the porous Travertine stone of the Colosseum?
• Which outcome occurs when alternating freezing and thawing affects lime mortar supporting Mughal pietra dura?
• Which consequence arises when the black powder in an early Chinese fire arrow undergoes rapid oxidation?