Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...

Shini talks to us about optical instruments and how they make magnification possible. How do lenses work? How do they form images? Well, in order to understand how optics work, we have to understand ...

The Cambridge Dictionary defines magnificent as “deserving to be admired.” I had no trouble doing that when I walked into the offices of Stellarvue to get an extension ring for my SVX140T and to visit ...

Night falls on the telescope dome at the Yerkes Observatory in Wisconsin. Its 40-inch telescope is visible inside. This is the largest refracting telescope in the world. * Photo: Roger ...