primary pipe
71sewage system — Collection of pipes and mains, treatment works, and discharge lines (sewers) for the wastewater of a community. Early civilizations often built drainage systems in urban areas to handle storm runoff. The Romans constructed elaborate systems that… …
72Creatures in the Half-Life series — The following is a list of creatures in the Half Life series. Half Life is a science fiction first person shooter computer game series which consists of two full games, two episodic games, and three third party made expansions, as well as a… …
732008 New Year Honours — The New Year Honours 2008 for the Commonwealth Realms were announced on 29 December 2007,[1] to celebrate the year passed and mark the beginning of 2008. The recipients of honours are displayed here as they were styled before their new honour,… …
74XProc — (von englisch XML Processing) ist eine vom W3C standardisierte XML Sprache zur Definition von Verarbeitungsketten für XML Dokumente (sogenannter XML Pipelines). Sie ist seit Mai 2010 W3C Empfehlung und dient dem vermehrten Bedarf der… …
75Stonehaven — Coordinates: 56°58′N 2°13′W / 56.96°N 2.21°W / 56.96; 2.21 …
76Solar hot water — is water heated by the use of solar energy. Solar heating systems are generally composed of solar thermal collectors, a fluid system to move the heat from the collector to its point of usage. The system may use electricity for pumping the fluid,… …
77Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… …
78Hawera — With a population of 11,000, Hawera is the second largest town in the Taranaki region of New Zealand s North Island. It is near the coast of the South Taranaki Bight, 75 kilometres south of New Plymouth on State Highway 3 and 20 minutes drive… …
79Lead and copper rule — The Lead and Copper Rule , or LCR, is a United States federal regulation which limits the concentration of lead and copper allowed in public drinking water at the consumer s tap, as well limiting the permissible amount of pipe corrosion occurring …
80Polyvinyl chloride — Polyvinyl chloride, (IUPAC Polychloroethene) commonly abbreviated PVC, is a widely used thermoplastic polymer. In terms of revenue generated, it is one of the most valuable products of the chemical industry. Around the world, over 50% of PVC… …
