energy diagram
121Phase (matter) — In the physical sciences, a phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform.[1] Examples of physical properties include density, index of refraction, and chemical …
122Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …
123Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor …
124Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …
125Rankine cycle — The Rankine cycle is a thermodynamic cycle which converts heat into work. The heat is supplied externally to a closed loop, which usually uses water as the working fluid. This cycle generates about 80% of all electric power used throughout the… …
126Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is …
127IK Pegasi — Starbox begin name=IK Pegasi Starbox image caption=Location of IK Pegasi. Starbox observe epoch=J2000 ra=RA|21|26|26.6624cite web title=SIMBAD Query Result: HD 204188 Spectroscopic binary publisher=Centre de Données astronomiques de Strasbourg… …
128Food web — A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological community. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the …
