two-level switch
612005 Hertfordshire Oil Storage Terminal fire — {| Location map|Hertfordshire label= background=white lat= 51.764 long= 0.424 caption=Hemel Hempstead in Hertfordshire float=right width=195The 2005 Hertfordshire Oil Storage Terminal fire was caused by a series of explosions early on the morning …
62Amiga — This article is about the family of home computers. For other uses, see Amiga (disambiguation). The former Amiga logo, as used by Commodore Amiga Inc …
63Washington Dulles International Airport — IATA: IAD – ICAO …
64Water tower — A water tower, watershed, or elevated water tower is a large elevated water storage container. The term tower speaks to its elevation and is constructed for the purpose of holding a supply of water at a height sufficient to pressurize a water… …
65Passenger rail transport in China — This article is about passenger rail transportation in mainland China. For rail transportation in Hong Kong, see Rail transport in Hong Kong. For rail transportation in Taiwan, see Rail transport in Taiwan. Passenger trains in Shanghai Passenger… …
66Dino Run — (Escape Extinction In Style) is an independent Flash game created by PixelJAM[1] and XGen Studios, in which the player steers a dinosaur through increasingly dangerous side scrolling landscapes to escape an impending wall of doom. The game uses… …
67Chemical reaction — Chemical reactions redirects here. For the 2007 television episode, see Chemical Reactions (Men in Trees). A thermite reaction using iron(III) oxide. The sparks …
68Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …
69Boiler feedwater pump — A boiler feedwater pump is a specific type of pump used to pump feedwater into a steam boiler. The water may be freshly supplied or returning condensate produced as a result of the condensation of the steam produced by the boiler. These pumps are …
70Samovar — A samovar Audio|ru samovar.ogg|listen (Russian: самовар, IPA ru|səmɐˈvar literally self boiler ) is a heated metal container traditionally used to heat and boil water in and around Russia, as well as in other Slavic nations, Iran, Kashmir, and… …
