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March 2, 2021 10:45 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/5rgf43Zz__Q/new-technique-reveals-centuries-of-secrets-in-locked-letters
New Technique Reveals Centuries of Secrets in Locked Letters
M.I.T. researchers have devised a virtual-reality technique that lets them read old letters that were mailed not in envelopes but in the writing paper itself after being folded into elaborate enclosures. From a report: In 1587, hours before her beheading, Mary, Queen of Scots, sent a letter to her brother-in-law Henry III, King of France. But she didn't just sign it and send it off. She folded the paper repeatedly, cut out a piece of the page and left it dangling. She used that strand of paper to sew the letter tight with locking stitches. In an era before sealed envelopes, this technique, now called letterlocking, was as important for deterring snoops as encryption is to your email inbox today. Although this art form faded in the 1830s with the advent of mass-produced envelopes, it has recently attracted renewed attention from scholars. But they have faced a problem: How do you look at the contents of such locked letters without permanently damaging priceless bits of history? On Tuesday, a team of 11 scientists and scholars at the Massachusetts Institute of Technology and other institutions disclosed their development of a virtual-reality technique that lets them perform this delicate task without tearing up the contents of historical archives. In the journal Nature Communications, the team tells of virtually opening four undelivered letters written from 1680 and 1706. The dispatches had ended up in a wooden postal trunk in The Hague. Known as the Brienne Collection, the box contains 3,148 items, including 577 letters that were never unlocked. The new technique could open a window into the long history of communications security. And by unlocking private intimacies, it could aid researchers studying stories concealed in fragile pages found in archives all over the world.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/5rgf43Zz__Q/new-technique-reveals-centuries-of-secrets-in-locked-letters
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