Which outcome occurs due to uneven tension during medieval silk production?

💡 Explanation

Uneven tension introduces periodic variations in thread density, allowing moire patterns emergence through optical interference because threads shift relative positions. Therefore, undesirable patterns arise rather than improving the original material since uniform tension controls its properties and prevents optical effects.

• Which vulnerability increases when Roman fortifications extended supply lines far beyond core territory?
• Which optical phenomenon enables the magnifying effect in Alhazen's 11th-century reading stone (a plano-convex lens)?
• Which risk increases when a wooden ship hull experiences delamination during age of sail?
• Which outcome results when the integrity of a terrace wall in the Andes fails during heavy rains?
• Which mechanical outcome arises in 11th-century mechanized clocks when using algebraic ratios in the gear trains?
• Which risk increases when laying Roman roads across areas high in organic matter like swamps?