Which outcome results when attempting to use a corroded brass astrolabe?

💡 Explanation

Corrosion roughens the alidade's sighting edges, preventing precise alignment. This causes inaccurate celestial altitude measurement because parallax errors increase with imperfect alignment. Therefore, altitude readings will be wrong, rather than problems with prayer times, gear arrest, or planetary models.

• Which outcome resulted upon complete obstruction of a 'fire arrow's' vent hole, compromising feudal bombardment strategies?
• Which long-term consequence results upon limestone blocks being exposed to acid rain?
• Which outcome resulted from using lower-quality concrete in Roman aqueducts?
• Which consequence arises if pre-Columbian stone aqueducts lack maintenance?
• Which outcome arises in early cast iron plowshares due to repeated soil impact?
• Which consequence resulted from improperly annealed casting during manufacturing of Roman pila?