Which risk increased for Viking longships navigating the North Atlantic when ice accretion became extreme?

💡 Explanation

Icing increases a vessel's displacement changing its center of gravity; the effect of this increased metacentric height is termed the "ice accretion instability mechanism". This reduces righting moment significantly, therefore rudder control is lost rather than directly affecting hull integrity.

• Which inaccuracy emerged when Spanish administrators used quipu records for tax assessments?
• Which structural instability challenged the height scaling of medieval turret fortifications?
• Which risk notably increased as suspension bridges lengthened during development?
• Which outcome results from excessive hydrostatic pressure within a Mughal-era shish mahal's water channeling?
• Which long-term consequence arises when high-sulfur coal combustion gases react with the marble inlay of historical Mughal monuments?
• When Medieval navigators relied primarily only on astrolabes, which effect increased position error during ocean voyages?