Exploring X-Ray Specs for the World’s Oldest Sealed Letters

A researcher examines a highresolution Xray image of a sealed letter, revealing hidden text and illustrations from the 17th century.

In October 2023, a team of scientists from the University of California conducted a groundbreaking study on a collection of sealed letters housed in various archives. Utilizing high-resolution X-ray microtomography, they successfully captured detailed images of the letters’ interiors, revealing text and illustrations that were previously inaccessible. This innovative method marks a significant milestone in … Read more