electromagnetic trough
61Azimuthal quantum number — The azimuthal quantum number (or orbital angular momentum quantum number, second quantum number) symbolized as ℓ (lower case L) is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the… …
62Nor'west arch — The Nor west arch, as visible from Christchurch, shows a blue belt of clear sky to the west from which high white cloud streams …
63Daniell cell — Daniell cells, 1836. The Daniell cell (var. sp. Daniel cell) was invented in 1836 by John Frederic Daniell, a British chemist and meteorologist, and consisted of a copper pot filled with a copper sulfate solution, in which was immersed an… …
64List of meteorology topics — This is a list of meteorology topics. The terms relate to meteorology, the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting. (see also: List of meteorological phenomena)AlphanumericTOC… …
65Energy policy of the United States — The energy policy of the United States is determined by federal, state and local public entities in the United States, which address issues of energy production, distribution, and consumption, such as building codes and gas mileage standards.… …
66Molten salt — Molten FLiBe (2LiF BeF2) Molten salt refers to a salt that is in the liquid phase that is normally a solid at standard temperature and pressure (STP). A salt which is normally liquid at STP is usually called a room temperature ionic liquid,… …
67Romanian Radio Broadcasting Company — Infobox Network name = Societatea Română de Radiodifuziune slogan = ro. De 80 de ani vorbim serios! country = ROU network type = Radio network available = National international (through Radio România Internaţional) owner = The Romanian state key …
68Inertial wave — Inertial waves, also known as inertial oscillations, are a type of mechanical wave possible in rotating fluids. Unlike surface gravity waves commonly seen at the beach or in the bathtub, inertial waves travel through the bulk of the fluid, not at …
69World energy resources and consumption — In order to directly compare world energy resources and consumption of energy, this article uses SI units and prefixes and measures energy rate (or power) in watts (W) and amounts of energy in joules (J). One watt is one joule per second. In 2005 …
70Electrical conduit — risers, seen inside fire resistance rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage …
