Which critical outcome threatened Viking rope-supported bridge spans in harsh weather following failures?

💡 Explanation

Cables experience amplified twisting (torsional) oscillations due to sustained winds. This cable resonance induces structural failure because the repeated twisting cycles rapidly exceed material fatigue limits, therefore spans collapse due vibration rather than water damage.

• Which mechanical interaction enabled early mechanical clocks (pre-1600s) to achieve stable oscillation despite variations in drive force?
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• Which failure mode occurs most rapidly when Inca rope suspension bridge cables become persistently waterlogged?
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