Top of Mind with Julie Rose - Radio Archive, Episode 1557 , Segment 2
Episode: Chauvin Trial, Standardized Testing, Sesame Street
- Mar 18, 2021 8:00 pm
- 17:06 mins
People used to secure their correspondence with fancy folding, though those techniques were lost when cheap envelopes became widely available in the mid-1800s. MIT Libraries conservator Jana Dambrogio leads a team that’s unlocking the secrets of letter locking by using X-ray scanning and algorithms to read the locked letters and see exactly how they’re folded.