Which crucial innovation resulted when cast iron cannon production faced shattering?

💡 Explanation

Circumferential stress caused cast cannons to fracture; therefore, using wrought iron reinforcing bands applied hoop stress, limiting crack propagation because of the effect of autofrettage rather than relying solely on cast iron's tensile strength.

• Which focusing principle enabled early Islamic scholars like Ibn al-Haytham derive accurate solar imagery using the camera obscura?
• Which effect consistently limited the agricultural productivity of Inca terraced farming at high altitudes?
• Which mechanism primarily enabled ancient rammed earth structures to withstand seismic activity?
• Which outcome arose in Inca administration when a specific quipu failed to convey required labour metrics?
• Which consequence would emerge if Byzantine silk dyeing deviated toward cheaper mineral mordants?
• Which refractive effect allowed early Islamic scholars to improve astrolabe accuracy via lens use?