A sensitive approach to frescoes


From physicsweb.org:

Physicists in Italy have developed a new microwave-based technique for analysing fresco paintings without damaging them – something that was impossible until now. Roberto Olmi and colleagues at the National Research Council in Florence have already used their technique to assess the moisture and salt content of frescoes in several churches in Florence. The new tool could help restorers preserve these works of art, which date from the Renaissance

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