The Pima County jail is among the first detention facilities in Arizona to install full-body scanning devices to screen incoming inmates for contraband. The jail began using the scanners — which can ...

Luis Martinez was on his way to work on a frigid Minneapolis morning when federal agents suddenly boxed him in, forcing the SUV he was driving to a dead stop in the middle of the street.

The scanning electron microscope (SEM) is a type of electron microscope capable of producing high resolution images of a sample surface. Due to the manner in which the image is created, SEM images ...