Which risk increased due to thermal expansion when crafting large Byzantine mosaics on exterior surfaces?

💡 Explanation

Tesserae detachment results from a differential thermal expansion. The different expansion coefficients between the tesserae (glass), setting bed, and the wall material cause shear stress and debonding because coefficient mismatch causes thermal fatigue, therefore tiles may have detached rather than staying secured, without flexible mounting mortar.

• Which consequence occurs on a Viking longship when sailcloth experiences persistent, localized stress near a seam?
• Which risk increased when Mesopotamian smiths quenched arsenic bronze blades improperly?
• Which outcome occurs when a Byzantine dromon's Greek fire projectors face extreme heat?
• Which outcome arises when ancient Mesopotamian bronze tools undergo repeated cold hammering?
• Which outcome accompanies increased wood drying rates during frame construction of ships-of-the-line?
• Which consequence immediately arose when Viking longships encountered significantly fraying of the hemp ropes controlling sail trim?