ceiling tube
21Sulfur lamp — The sulfur lamp (also sulphur lamp) is a highly efficient full spectrum electrodeless lighting system whose light is generated by sulfur plasma that has been excited by microwave radiation. The technology was developed in the early 1990s, but,… …
22de Havilland Mosquito — DH.98 Mosquito The Mosquito B Mk XVI ML963 of 571 Squadron this aircraft was lost on an operation to Berlin in April 1945 …
23Victoria and Albert Museum — Coordinates: 51°29′48″N 0°10′19″W / 51.496667°N 0.171944°W / 51.496667; 0.171944 …
24OV-10 Bronco — Infobox Aircraft name = OV 10 Bronco type = Light attack and observation aircraft manufacturer = North American Rockwell caption = An OV 10 firing a white phosphorus smoke rocket to mark a ground target designer = first flight = 16 July 1965… …
25Cross-linked polyethylene — PEX redirects here. For other uses, see Pex (disambiguation). Cross linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross links. It is formed into tubing, and is used predominantly in hydronic radiant heating …
26Supermarine Spitfire (early Merlin powered variants) — Infobox Aircraft name =Spitfire type =Fighter manufacturer =Supermarine caption =Spitfire Vc launching from USS Wasp designer =R. J. Mitchell first flight =5 March 1936 introduction =1938 retired =1955, RAF status = primary user =Royal Air Force… …
27Former cinemas in Harringay — In its days as an entertainment centre for London, Harringay in North London also provided more locally directed entertainment in the shape of four cinemas. The earliest was opened in 1910 and was operating as a cinema until January 2003.The… …
28Anemometer — A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson Cup ty …
29ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like …
30Barometer — Schematic drawing of a simple mercury barometer with vertical mercury column and reservoir at base …
