EPISODE · Mar 11, 2021 · 12 MIN
Sleuths Read Old Booby-Trapped Letters Without Opening Them
from Science, Spoken · host SpokenLayer
People once folded their correspondence in intricate ways, known as “letterlocking,” to keep out snoops. A fancy new imaging technique sees right through it. Learn about your ad choices: dovetail.prx.org/ad-choices
What this episode covers
People once folded their correspondence in intricate ways, known as “letterlocking,” to keep out snoops. A fancy new imaging technique sees right through it.
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Sleuths Read Old Booby-Trapped Letters Without Opening Them
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Frequently Asked Questions
How long is this episode of Science, Spoken?
This episode is 12 minutes long.
When was this Science, Spoken episode published?
This episode was published on March 11, 2021.
What is this episode about?
People once folded their correspondence in intricate ways, known as “letterlocking,” to keep out snoops. A fancy new imaging technique sees right through it.
Learn about your ad choices: dovetail.prx.org/ad-choices
Can I download this Science, Spoken episode?
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