Which outcome occurs when attempting to directly sight the sun using an unshaded medieval astrolabe?

💡 Explanation

Solar observation without proper filters causes retinal damage via thermal heating; the eye's focusing power concentrates light and thus irradiance, rather than scattering it harmlessly across the retina. Therefore eye damage is the primary risk, rather than instrument-related effects.

• Which outcome accelerates deterioration when moisture penetrates pietra dura inlay?
• Which structural challenge occurs when shipbuilders excessively thin planks?
• Which stabilization method prevented lateral displacement in Roman arched roadways during heavy use?
• Which consequence resulted from poorly bonded mortar in Roman concrete?
• Which consequence occurs to fragile Byzantine mosaics during earthquakes?
• Which outcome occurs when the ziggurat core settles unevenly?