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Microtubing or spaghetti tubing is a very fine plastic tubing used in drip irrigation, typically in gardens and greenhouses, with a small inside diameter which may be 0.05" or smaller. [ 1 ] It was introduced in the 1950s in the United States, in Watertown, New York .
An emitting pipe is a type of drip irrigation tubing with emitters pre-installed at the factory with specific distance and flow per hour as per crop distance. An emitter restricts water flow passage through it, thus creating head loss required (to the extent of atmospheric pressure) to emit water in the form of droplets.
A 4-metre gutter, enduring a −5 °C to 25 °C temperature range will need space to expand, 30 × 4 × 0.06 = 7.2 mm within its end stops. [28] As a rule of thumb a 4-inch (100 mm) gutter with a single 68-millimetre (2.7 in) downpipe will drain a 600-square-foot (56 m 2 ) roof.
Lining bars have a tapered form. They often have a square cross section between one and 1-1/2 inches at one end. They may have a pyramidal, wedge, or pinch point. They transition to a tapered round cross section 12 to 18 inches from the point. The handle end may terminate in a ball or may be cut off squarely at 5/8 to 3/4 inch diameter.
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A drip chamber, also known as drip bulb, is a device used to allow gas (such as air) to rise out from a fluid so that it is not passed downstream. It is commonly employed in delivery systems of intravenous therapy and acts to prevent air embolism. [1] [2] The use of a drip chamber also allows an estimate of the rate at which fluid is administered.
The South African Truth and Reconciliation Commission received testimony from Charles Zeelie and Jeffrey Benzien, officers of the South African Police under Apartheid, that they used waterboarding, referred to as "tubing", or the "wet bag technique" on political prisoners as part of a wide range of torture methods to extract information.
Freeman used some scrap hoses and copper tubing onto the heating element of an old flat-iron and produced the first headbolt heater, which warmed the engine's water jacket and the oil film between cylinder heads and pistons. [307] [308] U.S. patent #2,487,326 was filed on November 4, 1946, and issued to Freeman on November 8, 1949. [309]