Which outcome occurs when ablating surfaces of a sundial gnomon?

💡 Explanation

Ablation changes the location of the shadow, leading to inaccurate timekeeping via shadow-casting, because the **index error** changes. Therefore indication of midday shifts, rather than any change to material properties; alternative answers do not involve shadow angles.

• Which consequence occurs when historical rope bridges lack sufficient redundancy?
• Which mechanism most directly enabled ancient mariners to accurately estimate longitude?
• Which consequence resulted implementing cambering on Roman road construction?
• Which structural problem commonly afflicted 18th-century warships despite coppering efforts aimed to prevent marine biofouling?
• Which outcome arises when the pressure of pre-Roman Greek fire underwater is increased past designed tolerances?
• Which outcome occurs when Byzantine silk dyeing vats experienced high bacterial contamination?