THINGS WE LEARNED THIS MONTH...
Apr 15, 2021
2 minutes
![histrevealuk2105_article_012_01_01](https://article-imgs.scribdassets.com/5h1f8vbgg08l8dia/images/fileC0AV5MG4.jpg)
LOCKED LETTER ‘UNSEALED’ BY SCIENCE
![histrevealuk2105_article_012_01_02](https://article-imgs.scribdassets.com/5h1f8vbgg08l8dia/images/fileDWC1ZBM6.jpg)
![histrevealuk2105_article_012_01_03](https://article-imgs.scribdassets.com/5h1f8vbgg08l8dia/images/fileCR2CI0DQ.jpg)
Hailed as a momentous breakthrough in the analysis of historic documents, researchers have been able to read a letter without opening it. The ‘virtual unfolding’ was achieved using X-ray scans, which were then formed into a 3D image. The letter, from 1697, was sealed using letterlocking – where the letter
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