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  • Pressure washing


    A pressure washer is used to remove old paint from a boat.Pressure washing or power washing is the use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, chewing gum and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces. The volume of a mechanical pressure washer is expressed in gallons or litres per minute, often designed into the pump and not variable. The pressure, expressed in pounds per square inch, pascals, or bar, is designed into the pump but can be varied by adjusting the unloader valve. Machines that produce pressures from 750 to 30,000 psi (5 to 200 MPa) or more are available. The terms pressure washing and power washing are used interchangeably in many scenarios, and there is some debate as to whether or not they are actually different processes. A pressure washing surface cleaner is a tool consisting of two to four high-pressure jets on a rotating bar that swivels when water is flowing. This action creates a uniformed cleaning pattern that can clean flat surfaces at a rapid rate. Hydro-jet cleaning is a more powerful form of power washing, employed to remove buildup and debris in tanks and lines.

  • List of Fist of the North Star episodes


    One of the DVD book covers used in the 2008 HD Remaster set of Hokuto no Ken The Fist of the North Star manga by Buronson and Tetsuo Hara was adapted into two animated television series produced by Toei Animation. The original series, simply titled , lasted 109 episodes, which aired on Fuji TV from 11 October 1984 to 5 March 1987, adapting the first 136 chapters of the original manga. A sequel series, Hokuto no Ken 2, took over the previous series' time slot and lasted 43 episodes, airing from 12 March 1987 to 18 February 1988, which adapts chapters 137 to 210 (the final chapters of the manga were not adapted).

  • Orders of magnitude (pressure)


    This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals. Magnitude Pressure lbf/in2 or dB Item 10−17 Pa 10 aPa Pressure in outer space in intergalactic voids 10−15 Pa 1–10 fPa Pressure in outer space between stars in the Milky Way 10−12 Pa −11 Pa 40 pPa Atmosphere of the Moon at lunar day, very approximately () 10−10 Pa 100 pPa Atmosphere of Mercury, very approximately () 800 pPa Atmosphere of the Moon at lunar night, very approximately () 10−9 Pa −8 Pa 10 nPa Pressure inside a vacuum chamber for laser cooling of atoms (magneto-optical trap) 10–700 nPa Atmospheric pressure in low Earth orbit 10−7 Pa 100 nPa Highest pressure still considered ultra-high vacuum 10−6 Pa 0.1 - 10 µPa Pressure inside a cathode ray tube (approximate) 1 µPa Reference pressure for sound in water 1 µPa Pressure inside a vacuum tube (very approximate) 10−5 Pa 10 µPa Radiation pressure of sunlight on a perfectly reflecting surface at the distance of the Earth.

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