For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking ...

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 ...

PROGRESS in nearly every branch of scientific investigation is dependent on the provision of suitable measuring apparatus. As the science develops, an ever-increasing degree of accuracy of measurement ...

IN his Thomas Young Oration of the Physical Society on December 6, Prof. Charles Fabry discussed “Vision in Optical Instruments”. Classical theory gives the resolving power of an optical instrument as ...