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: Aiming at developing infrared optoelectronic devices compatible with silicon-based large scale integration, we investigated performance of PbS colloidal quantum dot-silicon photodetectors ...

The inside of giant planets can reach pressures more than one million times the Earth's atmosphere. As a result of that intense pressure, materials can adopt unexpected structures and properties.

Water is essential for all chemistry and life, yet understanding how it interacts with dissolved ions—such as sodium and magnesium—has long been a major scientific challenge. Now, an international ...