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Persian units of measurement. An official system of weights and measures was established [citation needed] in the ancient Persian Empire under the Achaemenid dynasty (550-350 BCE). The shekel and mina ("profane" or "sacred") were units of both weight and volume.
A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the ...
Definition: measurements of distances using laser light. More specific terms: phase shift method for distance measurements, time-of-flight measurements, triangulation. German: Distanzmessung mit Lasern, Laser-Entfernungsmessung. Categories: optical metrology, methods. Author: Dr. Rüdiger Paschotta.
A laser accelerometer is an accelerometer that uses a laser to measure changes in velocity/direction. Mechanism. It employs a frame with three orthogonal input axes and multiple proof masses. Each proof mass has a predetermined blanking surface. A flexible beam supports each proof mass.
Persian ( / ˈpɜːrʒən, - ʃən / PUR-zhən, -shən ), also known by its endonym Farsi or Parsi [a] ( فارسی [fɒːɾˈsiː] ⓘ ), is a Western Iranian language belonging to the Iranian branch of the Indo-Iranian subdivision of the Indo-European languages.
Persian Wikipedia (Persian: ویکیپدیای فارسی, romanized: Wīkipediāī Fārsī) is the Persian language version of Wikipedia. The Persian version of Wikipedia was started in December 2003. As of July 2024, it has 1,006,488 articles, 1,322,421 registered users, and 91,168 files, and it is the 19th largest edition of Wikipedia by ...
Length measurement, distance measurement, or range measurement (ranging) refers to the many ways in which length, distance, or range can be measured. The most commonly used approaches are the rulers, followed by transit-time methods and the interferometer methods based upon the speed of light.
