Within Byzantine mosaics like Hagia Sophia, which consequence arises upon repeated freeze-thaw cycles?

💡 Explanation

Repeated freeze-thaw cycles cause tesserae displacement via ice wedging. Water penetrates the mortar and expands during freezing, creating expansive force. Thus the mortar is cracked and the bond fails, therefore tesserae detach, rather than sublimation because that requires heat.

• Which error increases significantly when using a historical sextant on a pitching ship in high seas?
• Which process limited efficient water delivery in the Mughal-era Shalimar Bagh gardens?
• Which observational error was reduced when 10th-century Islamic astronomers introduced the alidade sight on astrolabes?
• For Viking longships navigating near icebergs, which risk increased due to sea spray freezing on the sail?
• Which outcome resulted when chinampa farming methods experienced prolonged drought conditions in Mesoamerica?
• Which consequence resulted from rapid heating inducing brittleness in early wrought iron cannons?