Which material-related consequence emerged during early iterations in Ancient China integrating cast iron with rapid oxidation mechanisms involving manufactured gunpowder artillery?

💡 Explanation

Early cast iron cannon experienced frequent failures due to embrittlement because rapid heating and cooling cycles during black gunpowder explosions caused thermal shock weakening the metal that, even cast iron, cannot distribute or handle rapidly, rather than controlled burn rates due to inconsistent powder composition or proper controlled storage.

• Which outcome resulted in early Islamic observatories when instrument builders selected glass compositions with poor homogeneity?
• Which risk increases when pre-industrial square-rigged sails experience prolonged dampness?
• Which outcome resulted when large Roman siege engines became waterlogged during prolonged naval assaults?
• Which adaptation was required for early terrace farming?
• Which outcome arose in Viking Age longships from sails experiencing icing?
• Which outcome accompanies Inca terracing subjected differential settling?