beam-type magnetron
41mass 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 …
42Linesman/Mediator — Linesman was the name given to the plan for the revamp of the air defence of the UK, this was originally conceived as part of the Ahead plan. As with any major plan it was subject to much review both prior to and post implementation; plans were… …
43Microwave burn — This article is about injury from direct microwave exposure. For other microwave oven related injuries, see Hazard section of Microwave oven. Microwave burns are burn injuries caused by thermal effects of microwave radiation absorbed in a living… …
44Traveling-wave tube — A traveling wave tube (TWT) is an electronic device used to amplify radio frequency signals to high power, usually in an electronic assembly known as a traveling wave tube amplifier (TWTA).The bandwidth of a broadband TWT can be as high as three… …
45List of Doctor Who items — This is a list of items from the BBC television series Doctor Who. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0–9 …
46List of coating techniques — This list contains an overview of coating techniques for thin film deposition, found in the field of materials science. The techniques can be classified as follows: Chemical vapor deposition (CVD) * Metalorganic vapour phase epitaxy *… …
47Iowa class battleship — The Iowa class battleships were a class of six fast battleships ordered by the United States Navy in 1939 and 1940 to escort the Fast Carrier Task Forces that would operate in the Pacific Theater of World War II. Four were completed in the early… …
48List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
49Fermilab — Established November 21, 1967 (as National Accelerator Laboratory) Research Type Nuclear Field of Research Parti …
50Gallium(III) nitride — Chembox new Name = Gallium(III) nitride IUPACName = Gallium(III) nitride OtherNames = None Listed. Name = Section1 = Chembox Identifiers CASNo = 25617 97 4 Section2 = Chembox Properties Formula = GaN MolarMass = 83.7297 g/mol Appearance = Yellow… …
