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A leaf blower, commonly known as a blower, is a device that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors. Gasoline models have traditionally been two-stroke engines, but four-stroke engines were recently introduced to partially address air pollution concerns.
The Glass-Blowers is a 1963 novel by Daphne du Maurier. The novel tells the story of a French family of glassblowers, the Bussons, charting their journey before, during and after the French Revolution.
Intake. Pumping. Output. The Roots blower is a positive displacement lobe pump which operates by pumping a fluid with a pair of meshing lobes resembling a set of stretched gears. Fluid is trapped in pockets surrounding the lobes and carried from the intake side to the exhaust. The Roots blower design does not incorporate any reduction in volume ...
Gas-powered leaf blowers can register as high as 100 decibels at the source (the levels decrease with distance). Most electric models range from 59 to 70 decibels.
Modern Roots blowers may have 2- or 3-lobed rotors. The Roots Blower Company was an American engineering company based in Connersville, Indiana. It was founded in 1854 by the inventors Philander Higley Roots and Francis Marion Roots. It is notable for the Roots blower, a type of pump. [1]
Glassblowing. A glassworker blows air into the glass, creating a cavity inside. Glassblowing is a glassforming technique that involves inflating molten glass into a bubble (or parison) with the aid of a blowpipe (or blow tube). A person who blows glass is called a glassblower, glassmith, or gaffer. A lampworker (often also called a glassblower ...
Sampson Salter Blowers (March 10, 1742 – October 25, 1842) was a noted North American lawyer, Loyalist and jurist from Nova Scotia who, along with Chief Justice Thomas Andrew Lumisden Strange, waged "judicial war" in his efforts to free Black Nova Scotian slaves from their owners, leading to the decline of slavery in Nova Scotia.
Esek Hopkins / ˈ iː ˌ z ɛ k / (April 26, 1718 – February 26, 1802) was an American naval officer, merchant captain, and privateer.Achieving the rank of Commodore, Hopkins was the only Commander-in-Chief of the Continental Navy during the American Revolutionary War.