Like most (if not all) Hackaday readers, I like to know how the technology I use works. I’m always amazed, for example, how many otherwise smart people have no idea how the cellphone network works ...

You unlock your phone with your face, your fingerprint sends your laptop whirring into action, you pass airport security by ...

As most crime scene experts know, dusting for fingerprints can sometimes destroy parts of the prints, erasing potentially valuable forensic clues. Conventional fingerprinting methods involve treating ...

Fingerprints are the unique pattern of curves and ridges indented into the skin of a person’s fingertips. Most people have completely unique fingerprints, which can help with identification. Even in ...

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 ...