industrial pumping
41Countercurrent exchange — Counter heat current exchange: Note the gradually declining differential and that the once hot and cold streams exit at the reversed temperature difference; the hotter entering stream becomes the exiting cooler stream and vice versa.… …
42Petroleum — For other uses, see Petroleum (disambiguation). Proven world oil reserves, 2009 …
43List of museums in England — Museums in England is a link page for any museum in England by ceremonial county. The Museums, Libraries and Archives Council is the national development agency for museums in England, and is a sponsored body of the Department for Culture, Media… …
44Metropolitan Water Board Railway — Locale England Dates of operation 1916–1946 Successor abandoned Track gauge 2 ft  (610 mm) Length 3 miles (4.8 km) …
45Lake Pontchartrain — Infobox lake lake name = Lake Pontchartrain image lake = Landsat new orleans nfl lrg.jpg caption lake = Landsat image image bathymetry = Lake Pontchartrain.png caption bathymetry = Map location = Louisiana coords =… …
46energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …
47Museum De Cruquius — Back of Cruquiusmuseum, showing the beams of the pumping engine and the 9 meter drop in water level from the Spaarne river …
48Baden, St. Louis — Baden became a part of the City of St. Louis in 1876 by the State legislature. Baden population was made up of 400 people. The neighborhood was located on the Kansas City and Northwestern Railroad. There were eleven stores in the neighborhood, 3… …
49harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
50Windmill — A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy of the wind into more useful forms using rotating blades or sails. The term also refers to the structure it is commonly built on. In much of… …
