Mu, Nu, Xi, Omicron, Pi, Rho, Sigma, Tau, Upsilon, Phi, Chi, Psi, and Omega. Meteorologists and weather reporters worldwide often use this unit for convenience, since working in pascals would result in much larger values.ġ5 psi = 15 × 0.0689475729 bar = 1. Code Chart for Greek Letters & Symbols (ALT, HTML, and Unicode Codes). Millibars (symbol: mb) are also commonly used when referencing atmospheric air pressure, where atmospheric pressure equals 1013.25 mbar (101.325 kPa). the phenomena or alleged phenomena studied in parapsychology, including extrasensory perception. Alternatively, place your insertion pointer where you need this symbol, then 03A8 and press Alt+X to get the PSI symbol. The International Bureau of Weights and Measures has specified the bar as a unit that authors should have the freedom to use but has chosen not to include the bar in the list of non-SI units accepted for use with SI. the Greek letter, often used to symbolize psychology. PSI Symbol Quick Guide To type the PSI Symbol on Word for Windows, simply press down the Alt key and type 936 using the numeric keypad, then let go of the Alt key. The term "bar" comes from the Greek word "baros," which means weight.Ĭurrent use: Although the bar is a metric unit of pressure, it is not accepted within the International System of Units (SI) and is even deprecated within certain fields. History/origin: The unit, bar, was introduced by Vilhelm Bjerknes, a Norwegian meteorologist who founded modern weather forecasting. It is equal to 0.987 atmospheres (101,325 Pa), the unit often used as a reference of standard pressure. Psi Symbol Greek Letter Unfinished Wooden Letters 12 - Etsy Greek Letter Psi THE UNFINISHED WOOD LETTER IS CUT OUT OF 3/8 THICK MDF WOOD. History/origin: Pound-force per square inch is a unit that originated in the imperial and US customary systems of units. One psi is approximately 6,895 pascals (N/m 2 ). It is defined as the pressure that results when a force of one pound-force is applied to a one-square-inch area. Barĭefinition: A bar (symbol: bar) is a metric unit of pressure that is defined as exactly 100,000 pascals (symbol: Pa). Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. Although the pascal is more widely used in scientific contexts, psi is more often used in everyday contexts, particularly in countries like the United States as well as others under the US customary or imperial systems of units. As such, the prototype pound at the time was known as the avoirdupois wool pound.Ĭurrent use: The psi is fairly widely used to measure numerous pressures, such as tire pressure, scuba tank pressure, natural gas pipeline pressure, among others. Browse our Greek Symbol Psi images, graphics, and designs from +79.322 free vectors graphics. The system is believed to have come into use in England around 1300 and was used in the international wool trade. Free Greek Symbol Psi vector download in AI, SVG, EPS and CDR. It is based on the avoirdupois system, a system that uses weights in terms of the avoirdupois pound, which was standardized in 1959. One psi is approximately 6,895 pascals (N/m 2). \ imath and \ jmath make "dotless" i and j, which are useful in conjunction with hats and accents.Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. Letters are rendered in italic font numbers are upright / roman. Initially, this twenty-third letter of the Greek alphabet had ended up being transliterated by the Romans to form the word psyche, which meant butterfly. The evolution of the term 'psi' () has a certain originality. PSI definition: PSI is a unit of pressure expressed in pounds of force per square inch of area.
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