During the construction of Byzantine mosaics, which consequence arises from insufficient keying?

💡 Explanation

Differential thermal expansion between the tesserae and the underlying mortar arises because insufficient keying reduces adhesion, leading to uneven expansion/contraction; therefore tesserae detach, rather than maintaining a uniform surface.

• Among historical Viking longships achieving high speeds, which mechanism most crucially reduced form drag at elevated leeway angles when sailing upwind?
• Which navigational risk increased when early 18th-century mariners relied solely on dead reckoning accounting for variations in prevailing winds?
• Which consequence results when tin bronze tools experience sustained humid conditions?
• Which navigational risk increased when 18th-century marine chronometers experienced thermal drift during transoceanic voyages?
• Which mechanical result limits span in Incan suspension bridges?
• Which weathering outcome increases in Mughal pietra dura architecture when rising damp transports salts?