normal reservoir water surface
101Extraction of petroleum — Pumpjack on an oil well in Texas The extraction of petroleum is the process by which usable petroleum is extracted and removed from the earth. Contents 1 …
102Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K …
103Oderteich — Country Germany Location Lower Saxony Coordinates …
104New Waddell Dam — New Waddell Dam …
105Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change …
106Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …
107Aeroponics — is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium. Aeroponic culture differs from both hydroponics and in vitro (Plant tissue culture) growing. Unlike hydroponics, which uses water as a… …
108natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… …
109reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …
110Drought in Canada — Average precipitation departures from normal over Canada from autumn 2000 through summer 2002. Precipitation departures are relative to the 1961 90 reference period …
