More people of all ages are getting knee replacement surgery. Yet because of several factors, thousands are not candidates. But now doctors at UCLA are studying a new, less invasive option and getting ...

Pinhole cameras are not new; they have been around since the beginning of photography. The concept was around long before that. The ancient Chinese and Greeks understood the notion of a pinhole device ...

Researchers have used the centuries-old idea of pinhole imaging to create a high-performance mid-infrared imaging system without lenses. The new camera can capture extremely clear pictures over a ...