From the archive · #113

A little curiosity.
From the archive.

Five flashcards. A fresh discovery. Your moment to get a little more out of the world.

April 23, 2026Locks & Keys: SecurityNo account needed · No timer
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Prompt: Linus Yale Jr. patented an influential version of this lock, in which a key aligns split pins at a shear line.
TechnologyA little curiosity
Security concept · RECALLLinus Yale Jr. patented an influential version of this lock, in which a key aligns split pins at a shear line.Think it. Then flip it.

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  1. 01Linus Yale Jr. patented an influential version of this lock, in which a key aligns split pins at a shear line.
  2. 02This authentication method requires evidence from two distinct categories, such as something known and something possessed.
  3. 03These devices record monitored areas for surveillance.
  4. 04These cryptographic values let recipients check a message's integrity and its association with a signing key.
  5. 05A sequence of numbers opens this kind of lock instead of a physical key.