During Roman siege warfare, which consequence occurred when defenders heated sand and poured it down on attacking forces?

💡 Explanation

When heated sand was poured onto attackers, flash burns occurred because of the sand's high temperature and thermal mass. Therefore, attackers experienced severe burns, rather than asphyxiation which requires combustion, structural damage needing very high heat transfer, or blinding that needs intense light reflection.

• Which outcome arises during intensive pre-Columbian maize cultivation without crop rotation?
• During early steam engine development, which limitation caused atmospheric engines to be less efficient than later designs?
• Which risk increased when ancient Mesopotamian irrigation canals breached a levee due to seasonal flooding?
• Which error corrupted celestial altitude measurements when using a medieval astrolabe during maritime navigation?
• Which soil degradation process accelerates on pre-Columbian Andean terraces lacking sufficient drainage?
• Which mechanism primarily enabled the construction of the dome of the Florence Cathedral without extensive scaffolding?