Radio telescopes are instruments that capture faint radio signals from space and convert them into images of celestial bodies ...

Now researchers in Japan have reported the world’s first continuous-wave UV-B semiconductor laser diode operating at room temperature on a low-cost sapphire substrate. This breakthrough by researchers ...

A new lens-free imaging system uses software to see finer details from farther away than optical systems ever could before.

When [Electron Impressions] used a powerful ultrasonic array to project a narrow beam of sound toward a target, he described ...

We suspect there are three kinds of people in the world. People who have access to a Michelson Interferometer and are glad, those who don’t have one and don’t know what one is, and a ...