Which outcome occurs when imperfect machining degrades a historical sextant's mirrors?

💡 Explanation

Sextant mirror defects introduce parallax error caused by incorrect angles on the mirrors; therefore, the index error rises because the coincidence between the direct and reflected views worsens, rather than horizon contrast benefiting due to scattering reduction.

• Which risk increases for Viking longships when sails experience prolonged saltwater exposure?
• Which increased risk arises because settlements encroach within ziggurat terrace limits?
• Which problem plagued early gunpowder artillery, preventing accurate targeting?
• Within Roman aqueducts, which constraint results from increased head pressure?
• During the Viking Age which handling risk increased with increased loom band tension within a longship sail?
• Which mechanism increased water pressure in the Shahi Hammam?