bi-based superconductor
41Flywheel energy storage — NASA G2 flywheel Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. When energy is extracted from the system, the flywheel s rotational speed… …
42Color superconductivity — is a phenomenon predicted to occur in quark matter if the baryon density is sufficiently high (well above nuclear density) and the temperature is not too high (well below 1012 kelvin). Color superconducting phases are to be contrasted with the… …
43Method of images — See also Method of image charges for applications in electrostatics and magnetostatics Method of images (or mirror images) is a mathematical tool for solving differential equations in which the domain of the sought function is extended by the… …
44Materia (física) — Véase también: Materia El término materia tradicionalmente se refiere a la sustancia de la que todos los objetos están hechos. [1] [2] Una forma común de identificar esta “sustancia” es mediante sus propiedades físicas; así una definición común… …
45Фотонный кристалл — Фотонный кристалл  это материал, структура которого характеризуется периодическим изменением показателя преломления в пространственных направлениях[1]. В другой работе[2] встречается расширенное определение фотонных кристаллов … …
46Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
47Kilogram — Kg redirects here. For other uses, see Kg (disambiguation). Kilogram A computer generated image of the international prototype kilogram (IPK). The IPK is the kilogram. The IPK, which is roughly the size of a golf ball, sits here alongside a ruler …
48Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… …
49Fictional universe of Avatar — In the 2009 science fiction film Avatar, director James Cameron conceived a fictional universe in which humans seek to mine unobtanium on the fictional exoplanetary moon, Pandora. The Earth like moon is inhabited by a sapient indigenous humanoid… …
50quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …
