An international team of researchers has read an unopened letter from Renaissance Europe - without breaking its seal or damaging it in any way.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/03/210302075401.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/03/210302075401.htm
Secrets of sealed 17th century letters revealed by dental X-ray scanners
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March 02, 2021
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