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  1. The Price Sensitivity Meter (PSM) is a market technique for determining consumer price preferences. It was introduced in 1976 by Dutch economist Peter van Westendorp. The technique has been used by a wide variety of researchers in the market research industry. The PSM approach has been a staple technique for addressing pricing issues for the ...

  2. v. t. e. The Richter scale [1] ( / ˈrɪktər / ), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Francis Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it ...

  3. 2006–present. Number built. 1,000+ [4] Developed from. Lockheed Martin X-35. The Lockheed Martin F-35 Lightning II is an American family of single-seat, single-engine, stealth multirole combat aircraft designed for air superiority and strike missions; it also has electronic warfare and intelligence, surveillance, and reconnaissance capabilities.

  4. The first set of data on the left columns of the table includes estimates for the year 2023 made for each economy of the 196 economies (189 U.N. member states and 7 areas of Aruba, Hong Kong, Kosovo, Macau, Palestine, Puerto Rico, and Taiwan) covered by the International Monetary Fund (IMF)'s International Financial Statistics (IFS) database.

  5. en.wikipedia.org › wiki › Mach_numberMach number - Wikipedia

    where the Mach number = /.In the limit that , the continuity equation reduces to = — this is the standard requirement for incompressible flow. Classification of Mach regimes While the terms subsonic and supersonic, in the purest sense, refer to speeds below and above the local speed of sound respectively, aerodynamicists often use the same terms to talk about particular ranges of Mach values.

  6. 3 Body Problem is an American science fiction television series created by David Benioff, D. B. Weiss and Alexander Woo, based on the Hugo Award–winning Chinese novel series Remembrance of Earth's Past by Liu Cixin. It is the second live-action adaptation after the 2023 Chinese television series. The first season was released on Netflix on ...

  7. en.wikipedia.org › wiki › Airbus_A350Airbus A350 - Wikipedia

    The Airbus A350 is a long-range, wide-body twin-engine airliner developed and produced by Airbus. The initial A350 design proposed by Airbus in 2004, in response to the Boeing 787 Dreamliner, would have been a development of the Airbus A330 with composite wings and new engines. Due to inadequate market support, Airbus switched in 2006 to a ...