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121History of the petroleum industry in Canada (oil sands and heavy oil) — Canada s oil sands and heavy oil resources are among the world s great petroleum deposits. They include the vast oil sands of northern Alberta, and the heavy oil reservoirs that surround the small city of Lloydminster, which sits on the border… …
122Department of Petroleum Engineering and Applied Geophysics, NTNU — Institutt for Petroleumsteknologi og anvendt Geofysikk Established 1973 Type Public university …
123Comparison of United States presidential candidates, 2008 — This article compares the presidential candidates in the United States 2008 presidential election. It does not cover previous elections. Because of ballot access restrictions in the United States, not all candidates appeared on the ballots in all …
124Outline of energy — See also: Index of energy articles In physics, energy (from the Greek ἐνέργεια – energeia, activity, operation , from ἐνεργός – energos, active, working [1]) is a scalar physical quantity that describes the amount of work that can be performed by …
125Petroleum industry in Nigeria — The petroleum industry in Nigeria is the largest industry and main generator of GDP in the West African nation which is also the continent s most populous. Since the British discovered oil in the Niger Delta in the late 1950s, the oil industry… …
126Royal Dutch Shell — plc Type Public limited company Traded as LSE:  …
127Printed circuit board — Part of a 1983 Sinclair ZX Spectrum computer board; a populated PCB, showing the conductive traces, vias (the through hole paths to the other surface), and some mounted electrical components A printed circuit board, or PCB, is used to… …
128Proxy (climate) — Climate proxies are preserved physical characteristics of the past that enable scientists to reconstruct the climatic conditions that prevailed during much of the Earth s history. As reliable modern records of climate only began in the 1880s,… …
