These are the distances our sense of touch can go down to. Not only can we distinguish fingerprint ridge distances but if we move them, we can tell what direction the movement is coming from, if it’s linear or curved, what angle is being pressed in. Might not see as well as the eyes but 0.4mm granularity isn’t bad.

These are the distances our sense of touch can go down to. Not only can we distinguish fingerprint ridge distances but if we move them, we can tell what direction the movement is coming from, if it’s linear or curved, what angle is being pressed in. Might not see as well as the eyes but 0.4mm granularity isn’t bad.

fingerprint-acuity

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