Network-centric warfare, also called network-centric operations or net-centric warfare, is a military doctrine or theory of war that aims to translate an information advantage, enabled partly by information technology, into…

Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called "electroluminescence". The wavelength of the light produced depends…

The Amana Colonies are seven villages on 26,000 acres (110 km2) located in Iowa County in east-central Iowa, United States: Amana (or Main Amana, German: Haupt-Amana), East Amana, High Amana, Middle…