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Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Siphon> ?p ?o }

• Siphon abstract "The word siphon (from Ancient Greek: σίφων \"pipe, tube\", also called syphon) is used to refer to a wide variety of devices that involve the flow of liquids through tubes. But in a narrower sense, the word refers particularly to a tube in an inverted 'U' shape, which causes a liquid to flow upward, above the surface of a reservoir, with no pump, but powered by the fall of the liquid as it flows down the tube under the pull of gravity, then discharging at a level lower than the surface of the reservoir it came from.There are two leading theories about how siphons cause liquid to flow uphill, against gravity, without being pumped, and powered only by gravity. The traditional theory for centuries was that gravity pulling the liquid down on the exit side of the siphon, resulted in reduced pressure at the top of the siphon. Then atmospheric pressure was able to push the liquid from the upper reservoir, up into the reduced pressure at the top of the siphon, like in a barometer or drinking straw, and then over. However, it has been demonstrated that siphons can operate in a vacuum and to heights exceeding the barometric height of the liquid. Consequently, the cohesion tension theory of siphon operation has been advocated, where the liquid is pulled over the siphon in a way similar to the chain model. It need not be one theory or the other that is correct, but rather both theories may be correct in different circumstances of ambient pressure. The atmospheric pressure with gravity theory obviously cannot explain siphons in vacuum, where there is no significant atmospheric pressure. But the cohesion tension with gravity theory cannot explain CO2 gas siphons, siphons working despite bubbles, and the flying droplet siphon, where gases do not exert significant pulling forces, and liquids not in contact cannot exert a cohesive tension force.All known published theories in modern times recognize Bernoulli's equation as a decent approximation to idealized, friction-free siphon operation.".
• Siphon thumbnail Lappo.svg?width=300.
• Siphon wikiPageExternalLink hydstat.htm.
• Siphon wikiPageID "459163".
• Siphon wikiPageLength "67419".
• Siphon wikiPageOutDegree "177".
• Siphon wikiPageRevisionID "702134327".
• Siphon wikiPageWikiLink 1992_Guadalajara_explosions.
• Siphon wikiPageWikiLink Acanthaceae.
• Siphon wikiPageWikiLink Ancient_Egypt.
• Siphon wikiPageWikiLink Ancient_Greece.
• Siphon wikiPageWikiLink Aquarium.
• Siphon wikiPageWikiLink Aqueduct_(bridge).
• Siphon wikiPageWikiLink Aristotle.
• Siphon wikiPageWikiLink Aspirator_(pump).
• Siphon wikiPageWikiLink Atmospheric_pressure.
• Siphon wikiPageWikiLink Backflow.
• Siphon wikiPageWikiLink Backflow_prevention_device.
• Siphon wikiPageWikiLink Banū_Mūsā.
• Siphon wikiPageWikiLink Barometer.
• Siphon wikiPageWikiLink Bernoullis_principle.
• Siphon wikiPageWikiLink Blaise_Pascal.
• Siphon wikiPageWikiLink Blood.
• Siphon wikiPageWikiLink Book_of_Ingenious_Devices.
• Siphon wikiPageWikiLink Building_code.
• Siphon wikiPageWikiLink Canadians.
• Siphon wikiPageWikiLink Canal.
• Siphon wikiPageWikiLink Capillary_action.
• Siphon wikiPageWikiLink Capital_cost.
• Siphon wikiPageWikiLink Carbon_dioxide.
• Siphon wikiPageWikiLink Carburetor.
• Siphon wikiPageWikiLink Category:Articles_containing_video_clips.
• Siphon wikiPageWikiLink Category:Fluid_dynamics.
• Siphon wikiPageWikiLink Category:Tools.
• Siphon wikiPageWikiLink Cave.
• Siphon wikiPageWikiLink Cavitation.
• Siphon wikiPageWikiLink Cerebrospinal_fluid.
• Siphon wikiPageWikiLink Check_valve.
• Siphon wikiPageWikiLink Chlorophyta.
• Siphon wikiPageWikiLink Christian_Gottfried_Daniel_Nees_von_Esenbeck.
• Siphon wikiPageWikiLink Circulatory_system.
• Siphon wikiPageWikiLink Cistern.
• Siphon wikiPageWikiLink Cohesion_(chemistry).
• Siphon wikiPageWikiLink Communicating_vessels.
• Siphon wikiPageWikiLink Crest_(physics).
• Siphon wikiPageWikiLink Culvert.
• Siphon wikiPageWikiLink Density.
• Siphon wikiPageWikiLink Elevation.
• Siphon wikiPageWikiLink Encyclopædia_Britannica.
• Siphon wikiPageWikiLink Energy.
• Siphon wikiPageWikiLink Evangelista_Torricelli.
• Siphon wikiPageWikiLink Fermentation_in_food_processing.
• Siphon wikiPageWikiLink File:SiphonNoTensileStrengthNeeded.svg.
• Siphon wikiPageWikiLink File:SiphonStillWorksWithBigLeg.svg.
• Siphon wikiPageWikiLink Firefighting.
• Siphon wikiPageWikiLink Fluid.
• Siphon wikiPageWikiLink Flume.
• Siphon wikiPageWikiLink Flush_toilet.
• Siphon wikiPageWikiLink Foam.
• Siphon wikiPageWikiLink Foot_(unit).
• Siphon wikiPageWikiLink Fungus.
• Siphon wikiPageWikiLink Galileo_Galilei.
• Siphon wikiPageWikiLink Garden_pond.
• Siphon wikiPageWikiLink Gasogene.
• Siphon wikiPageWikiLink Gasoline.
• Siphon wikiPageWikiLink Gasoline_theft.
• Siphon wikiPageWikiLink Genus.
• Siphon wikiPageWikiLink Geosiphon.
• Siphon wikiPageWikiLink Giraffe.
• Siphon wikiPageWikiLink Gravity.
• Siphon wikiPageWikiLink Gravity_feed.
• Siphon wikiPageWikiLink Gravity_of_Earth.
• Siphon wikiPageWikiLink Hagen–Poiseuille_equation.
• Siphon wikiPageWikiLink Hero_of_Alexandria.
• Siphon wikiPageWikiLink Herons_fountain.
• Siphon wikiPageWikiLink Horror_vacui_(physics).
• Siphon wikiPageWikiLink Humboldt_State_University.
• Siphon wikiPageWikiLink Hydraulic_ram.
• Siphon wikiPageWikiLink Hydrocephalus.
• Siphon wikiPageWikiLink Hydrostatics.
• Siphon wikiPageWikiLink Inch.
• Siphon wikiPageWikiLink Infinity.
• Siphon wikiPageWikiLink Jiggle_syphon.
• Siphon wikiPageWikiLink LS-DYNA.
• Siphon wikiPageWikiLink Malcolm_Nokes.
• Siphon wikiPageWikiLink Mariottes_bottle.
• Siphon wikiPageWikiLink Mercury_(element).
• Siphon wikiPageWikiLink Metre.
• Siphon wikiPageWikiLink Millersville_University_of_Pennsylvania.
• Siphon wikiPageWikiLink Nucleation.
• Siphon wikiPageWikiLink Ontario.
• Siphon wikiPageWikiLink Oxford_English_Dictionary.
• Siphon wikiPageWikiLink Pergamon.
• Siphon wikiPageWikiLink Perpetual_motion.
• Siphon wikiPageWikiLink Phylum.
• Siphon wikiPageWikiLink Physics_Today.
• Siphon wikiPageWikiLink Pressure.
• Siphon wikiPageWikiLink Pressure_head.
• Siphon wikiPageWikiLink Province.
• Siphon wikiPageWikiLink Pulmonary_aspiration.

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