The red-dot trend is so pervasive that consumers can choose from a range of semi-automatic handguns that are cut to accept optics. But what about adding red-dots to revolvers?

Nonlinear optics is the study of how intense light interacts with matter. The optical response of a material usually scales linearly with the amplitude of the electric field. At high powers, however, ...

Sub-wavelength optics is the study of light on a spatial scale smaller than its wavelength. Conventionally, the minimum length scale on which a beam of light can operate is equal to half its ...

There are several variants of the heavy-hitting .50 caliber round, used by the U.S. military in M2 machine guns and M107 sniper rifles. The .50 caliber M8 armor-piercing bullet has an aluminum color ...