Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-fingerprinting-0c7ca23b9437

What do thermal fingerprint scanners sense?

Temperature differences on the contact surface.

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  1. Sound waves in the air
  2. Light from a camera
  3. Temperature differences on the contact surface ✔

Why: Thermal scanners sense temperature differences between ridges and valleys.

Huh, didn't know that: Thermal scanners sense temperature differences between ridges and valleys.

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References

Answer: Temperature differences on the contact surface. Thermal scanners sense temperature differences between ridges and valleys.

  1. Fingerprint en.wikipedia.org/wiki/Fingerprint
    Thermal scanners sense the temperature differences on the contact surface, in between fingerprint ridges and valleys.
    Checked 2026-11-07.

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