The Israel Defense Forces (IDF) have reportedly acquired a version of the 6.8x51mm M250 light machine gun that Sig Sauer ...

as well as the Army’s standard front and rear sights. “As these were fielded by the U.S. Army their condition will vary, making each one uniquely different, and making this truly an ...

Quantum optics is the study of how individual quanta of light, known as photons, interact with atoms and molecules. This includes studying the particle-like properties of photons. Photons have ...

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 ...

If you've never been to Washington, D.C. before, plan to spend some time along the Tidal Basin, an approximately 107-acre pond encircled by a 2.1-mile loop trail. Constructed to use the strong ...