In those same decades, most UFO sightings were made in the daytime and frequently at close range, when shapes and surface features could be distinguished, thus making positive identification of normal sights easier and the descriptions of unusual sights more… — Don Berliner Copy Share Image
Unlike a pressed or blown-glass part, which traditionally has smooth internal surface features, a printed part can have complex surface features on the inside as well as the outside. — Neri Oxman Copy Share Image
