shell ventilation
31Poliomyélite — (Maladie de Heine Medin) Classification et ressources externes Enfant présentant une amyotrophie du membre inférieur droit due à la poliomyélite CIM …
32Citroën 2CV — Manufacturer Citroën Production 1948–1990 [1] …
33Ceiling fan — A ceiling fan is a fan, usually electrically powered, suspended from the ceiling of a room, that uses hub mounted rotating paddles to circulate air. Casablanca Fan Co. ceiling fan from the early 1980s. A ceiling fan rotates much mo …
34Western architecture — Introduction history of Western architecture from prehistoric Mediterranean cultures to the present. The history of Western architecture is marked by a series of new solutions to structural problems. During the period from the… …
35Cold-weather biking — A bicycle set up for winter commuting with metal studded tires, enclosed chain case, and drum brakes Cold weather biking (also referred to as winter biking, snowbiking or icebiking) is the activity of cycling in winter weather with snow, ice, and …
36Contrast-enhanced ultrasound — (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. This may be the surface of a… …
37German battleship Scharnhorst — Scharnhorst Career (Nazi Germany) …
38Dome — For other uses, see Dome (disambiguation). Domal redirects here. For domal consonants , see Retroflex consonant. Dome of St. Peter s Basilica in Rome crowned by a cupola. Designed primarily by Michelangelo, the dome was not completed until 1590 A …
39Portable classroom — A portable classroom at Rockcliffe Park Public School in Ottawa, Canada A portable classroom (in Australian English a demountable and often referred to as a demountable, a Terrapin or a Portakabin (after the two companies) in the UK and called a… …
40Building insulation — refers broadly to any object in a building used as insulation for any purpose. Whilst the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation, fire insulation, and impact insulation. Often an… …
