Which outcome arises from uncontrolled devitrification during glass production while incorporating ancient Chinese saltpeter-enriched gunpowder remnants?

💡 Explanation

Internal stress fracturing results from uncontrolled devitrification because crystal growth induces volumetric changes, thus creating stress concentrations. Therefore, option C results, rather than shock resistance or refraction changes due to the *crystallization mechanism* overpowering amorphous structure.

• Which error increased in 18th-century celestial navigation when inaccurate chronometers overestimated eastbound travel time during ocean voyages?
• Inside Mughal-era water gardens, which outcome decreases effective hydraulic head when excessive settling compromises 'pietra dura' channel linings?
• In pre-Columbian Andean terrace farming, which risk is heightened by poorly constructed terrace walls?
• Which navigational hazard significantly decreased by precise chronometer use?
• Water damage increases in pietra dura inlay when which mechanism is most compromised?
• Which outcome increased water damage to Roman concrete?