momentum data systems
71Cable television — CATV redirects here. For CAT5 cable, see Category 5 cable. Coaxial cable is often used to transmit cable television into a residence. Cable television is a system of providing television programs to consumers via radio frequency (RF) signals… …
72Star — For other uses, see Star (disambiguation) …
73Day trading — This article is about the practice. For the occupation, see Day trader. Day trading refers to the practice of buying and selling financial instruments within the same trading day such that all positions are usually closed before the market close… …
74Electron beam lithography — (often abbreviated as e beam lithography) is the practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film (called the resist),cite book |last= McCord |first=M. A. |coauthors=M. J. Rooks |title=… …
75electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
76mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
77N-body problem — otheruses4|the problem in classical mechanics|the problem in quantum mechanics|Many body problem The n body problem is the problem of finding, given the initial positions, masses, and velocities of n bodies, their subsequent motions as determined …
78Magnetic monopole — It is impossible to make magnetic monopoles from a bar magnet. If a bar magnet is cut in half, it is not the case that one half has the north pole and the other half has the south pole. Inst …
79Mexico — /mek si koh /, n. 1. a republic in S North America. 97,563,374; 761,530 sq. mi. (1,972,363 sq. km). Cap.: Mexico City. 2. a state in central Mexico. 6,245,000; 8268 sq. mi. (21,415 sq. km). Cap.: Toluca. 3. Gulf of, Mexican, Golfo de México /gawl …
80Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
