secondary grid-type system
111Wind power — Wind power: worldwide installed capacity [1] …
112Royal Observer Corps — Ensign Active 1925–1996 Country …
113Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …
114Sodium–sulfur battery — Cut away schematic diagram of a sodium–sulfur battery. (image courtesy NASA John Glenn Research Center). A sodium–sulfur battery or liquid metal battery is a type of molten metal battery[1] constructed from sodium (Na) and sulfur ( …
115Maglev — JR Maglev at Yamanashi, Japan test track in November 2005 …
116Ion thruster — An ion thruster is a form of electric propulsion used for spacecraft propulsion that creates thrust by accelerating ions. Ion thrusters are characterized by how they accelerate the ions, using either electrostatic or electromagnetic force.… …
117People's Liberation Army —   中国人民解放军   Emblem of the People s Liberation Army Founded August 1, 1927 Service branches …
118Current transformer — A CT for operation on a 110 kV grid In electrical engineering, a current transformer (CT) is used for measurement of electric currents. Current transformers, together with voltage transformers (VT) (potential transformers (PT)), are known as …
119Carbon offset — Part of a series on Green economics Concepts …
120Adaptation to global warming — and climate change is a response to climate change that seeks to reduce the vulnerability of natural and human systems to climate change effects.[1] Even if emissions are stabilized relatively soon, climate change and its effects will last many… …
