shielding factor
21transition element — Chem. any element in any of the series of elements with atomic numbers 21 29, 39 47, 57 79, and 89 107, that in a given inner orbital has less than a full quota of electrons. Also called transition metal. [1920 25] * * * Any chemical element with …
22Component parts of internal combustion engines — Internal combustion engines come in a wide variety of types, but have certain family resemblances, and thus share many common types of components. Contents 1 Combustion chambers 2 Ignition system 2.1 Spark 2.2 Compression …
23Electromagnetic interference — RIV redirects here. For other uses, see RIV (disambiguation). Electromagnetic interference in analog TV signal Electromagnetic interference (or EMI, also called radio frequency interference or RFI) is disturbance that affects an electrical… …
24Atari 2600 — infobox CVG system caption = Atari 2600 four switch wood veneer version manufacturer = Atari Inc. type = Video game console generation = Second generation lifespan = vgrelease|NA=October vgy|1977|EU=vgy|1978 discontinue = 1 January… …
25Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …
26Gravitomagnetism — (sometimes Gravitoelectromagnetism, abbreviated GEM), refers to a set of formal analogies between Maxwell s field equations and an approximation to the Einstein field equations for general relativity, valid under certain conditions. For instance …
27Non-rocket spacelaunch — Non rocket space launch (NRS) is a launch into space where some or all needed speed and altitude is provided by non rocket means, rather than simply using conventional chemical rockets from the ground. A number of alternatives to rockets have… …
28ГОСТ 25645.201-83: Безопасность радиационная экипажа космического аппарата в космическом полете. Термины и определения — Терминология ГОСТ 25645.201 83: Безопасность радиационная экипажа космического аппарата в космическом полете. Термины и определения оригинал документа: 33. Активная радиационная защита экипажа космического аппарата в космическом полете Активная… …
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29Deadpool (comics) — Superherobox| caption=Deadpool, from the recap page of Cable and Deadpool #26 character name=Deadpool real name=Wade Winston Wilson [Cable Deadpool #36, April 2007] species= Human (mutate) publisher=Marvel Comics debut= New Mutants #98 (February …
30cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
