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 ...

Imaging is one of the most important activities in science and daily life. As imaging tools, optical lenses have been investigated by many scientists and industries for several centuries. In a ...

Convex and concave lenses can both be used to correct defects of vision. The most commonly occurring defects of vision are ‘short sightedness’ and ‘long sightedness’. People who are ‘short sighted’ ...

One approach for reducing the expense of radiotherapy is to use low-cost kilovoltage X-rays, focused onto the target using an X-ray lens such as the one shown above. (Courtesy: Ze’ev Harel, Convergent ...