Which consequence occurred if an astrolabe's alidade was misaligned circa 1000 AD?

💡 Explanation

Misalignment induced parallax error, so incorrect altitude readings resulted because the alidade's angle didn't correspond to the true celestial body position, therefore compromising astronomical calculations, rather than mechanical failure or timekeeping errors.

• Which disadvantage limited cannon effectiveness after repeated firing utilising cast bronze barrels?
• Which risk increased when 18th-century shipbuilders introduced iron knees to reinforce wooden hull-frame joints?
• Which limitation was encountered when early Islamic scholars attempted to refine lenses produced using grinding techniques?
• Which structural risk increased for stone fortifications built during the Roman empire when subjected to undermining?
• Which structural weakness precipitates collapse in dry-stone Inca walls on steeply sloped terraces lacking sufficient drainage?
• Which consequence follows when early Chinese iron-casting production experienced incomplete fusion?