It’s a question that a professor asked Gabe Guo during a casual chat while he was stuck at home during the Covid-19 lockdowns, waiting to start his freshman year at Columbia University. “Little did I ...

Fingerprint scanners on smartphones have gone mainstream over the past few years. They are now not just limited to the top-of-the-line smartphones but are also available on the mid-range and budget ...

SAN DIEGO, March 13 — Dusting for fingerprints can sometimes alter the prints, erasing valuable forensic clues. Now, chemists say they have developed a new fingerprint visualization technique using ...

Fingerprints are those little ridges on the tips of your fingers. They’re essentially folds of the outer layer of skin, the epidermis. The “prints” themselves are the patterns of skin oils or dirt ...