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In plumbing, a trap is a U-shaped portion of pipe designed to trap liquid or gas to prevent unwanted flow; most notably sewer gases from entering buildings while allowing waste materials to pass through. In oil refineries, traps are used to prevent hydrocarbons and other dangerous gases and chemical fumes from escaping through drains.
Most water closets, bidets, and many urinals have the trap integral with the fixture itself. The visible water surface in a toilet is the top of the trap's water seal. Each fixture drain, with exceptions, must be vented so that negative air pressure in the drain cannot siphon the trap dry, to prevent positive air pressure in the sewer from ...
Gully erosion may also advance laterally through similar methods, including mass movement, acting on the gully walls (banks), and the development of 'branches' (a type of tributary). Gullies reduce the productivity of farmlands where they incise into the land and produce sediment that may choke downstream waterbodies and reduce water quality ...
A study confirmed that side effects like pancreatitis and kidney damage are possible while taking GLP-1s like Ozempic. Here's what a doctor wants you to know.
These webs are designed to trap crawling insects and are made from wooly rather than sticky silk. The insect gets its legs entangled in it and the spider races out to capture it. The more complex ...
Nahan's partridge [1] (Ptilopachus nahani), also known as the Nahan's francolin, is a bird traditionally placed in the family Phasianidae.As suggested by its alternative name, it was formerly believed to be a francolin and placed either in Francolinus or Pternistis, but it is now known that its closest relative is the stone partridge and together may in fact be the only African representatives ...
Lindsay Shiver, a former beauty queen who is accused of plotting to kill her estranged husband, is set to be released from prison on bail for the second time ahead of her trial.. According to ...
The Buchan trap was devised in the 19th century to stop the flow of sewer gases due to the miasma theory of disease. [1] For example, it was believed that the disease cholera was an airborne infection, not waterborne. The Buchan trap is normally found in the bottom of manholes or drop-shafts.