CBC: Why an Italian museum unleashed bacteria on Michelangelo’s marble masterpieces

CBC: Why an Italian museum unleashed bacteria on Michelangelo’s marble masterpieces. “When it came time to clean sculptures by Michelangelo at the Medici Chapels in Florence, Italy, conservators knew they needed a new approach. For nearly a decade, teams have been working to clean the marble works in the New Sacristy — searching for solutions that wouldn’t damage the fragile stone Michelangelo worked with to sculpt the room’s elaborate tombs. So rather than applying chemicals or using abrasives, the experts made a ‘bold decision’ to use bacteria-infused gel to clean away centuries worth of dirt and grime.”

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