** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** We were glassing a small herd of ...

THE belief of some physicists that the significance of Airy's work of a hundred years ago on the character of optical images is rarely appreciated by users of optical instruments, will be strengthened ...

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 ...

WITHOUT entering into a discussion of the correct interpretation of high power microscopic images, which is a very recondite subject, I should like to point out that Mr. Mallock's statement in NATURE ...