Red dot sights have proliferated into every corner of the firearms world in recent years and, today, they are better than ever. These non-magnified optics, which use a battery to project a luminous ...

Abstract: Lead Sulfide (PbS) colloidal quantum dots (CQDs) are promising materials for flexible and wearable photovoltaic devices and technologies due to their low cost, solution processibility and ...

The six-part documentary explores the United States’ founding struggle and its eight-year War for Independence, examining how these “turned the world upside-down.” It airs nightly through Nov. 21.

Sunday’s premiere of Ken Burns’ new PBS series “The American Revolution” doubles as an attention-grabbing statement, months after President Donald Trump succeeded in stripping away all federal funding ...

"The American Revolution," the latest work from filmmaker Ken Burns, begins this Sunday on PBS. The six-part, 12-hour history of the war of independence from Britain and the beginnings of the American ...

Filmmaker Ken Burns has examined some of the most defining moments of American history. He's delved into the Civil War, dissected America's response to the Holocaust and chronicled the evolution of ...