secondary grid emission
51Fuel cell — For other uses, see Fuel cell (disambiguation). Demonstration model of a direct methanol fuel cell. The actual fuel cell stack is the layered cube shape in the center of the image A fuel cell is a device that converts the chemical energy from a… …
52Oscilloscope types — This is a subdivision of the Oscilloscope article, discussing the various types and models of oscilloscopes in greater detail. Contents 1 Cathode ray oscilloscope (CRO) 1.1 Dual beam oscilloscope 2 Analog storage oscilloscope …
53Electromagnetic pulse — Ebomb redirects here. For EBOM, see Engineering bill of materials. This article is about the general weapons effect. For other uses, see the more specific topic (for example, Electromagnetic forming) An electromagnetic pulse (sometimes… …
54Rechargeable battery — A rechargeable lithium polymer Nokia mobile phone battery …
55Incineration — For other forms of waste plant that produces energy, see waste to energy. Incinerator redirects here. For the fictional character, see Incinerator (Transformers). Incinerate redirects here. For the Sonic Youth song, see Incinerate (song). For the …
56Sellafield — Aerial view of the site …
57Dynatron — For the brand, see Dynatron Radio Ltd The dedicated dynatron vacuum tube was invented by Albert Hull in 1918 [http://ieee.cincinnati.fuse.net/newsletters/200401.pdf] . It has three electrodes: a thermionic cathode, a perforated anode, and a… …
58Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
59Electron microscope — Diagram of a transmission electron microscope A 197 …
60Intermittent energy source — An intermittent energy source is any source of energy that is not continuously available due to some factor outside direct control. The intermittent source may be quite predictable, for example, tidal power, but cannot be dispatched to meet the… …
