Ottoman units of measurement | Units of volume | Obsolete units of measurement | Units of mass
The oka, okka, or oke (Ottoman Turkish: اوقه) was an Ottoman measure of mass, equal to 400 dirhems (Ottoman drams). Its value varied, but it was standardized in the late empire as 1.2829 kilograms. 'Oka' is the most usual spelling today; 'oke' was the usual contemporary English spelling; 'okka' is the modern Turkish spelling, and is usually used in academic work about the Ottoman Empire. In Turkey, the traditional unit is now called the eski okka 'old oka' or kara okka 'black okka'; the yeni okka 'new okka' is the kilogram. In Greece, the oka (οκά, plural οκάδες) was standardized at 1.282 kg and remained in use until traditional units were abolished on March 31, 1953—the metric system had been adopted in 1876, but the older units remained in use. In Cyprus, the oka was equal to 1.270058636 kg or 4 onjas, each weighing 100 drams, and it remained in use until 1986, when Cyprus adopted the metric system. In Egypt, the monetary oka weighted 1.23536 kg. In Tripolitania, it weighed 1.2208 kg, equal to 2½ . The oka was also used as a unit of volume. In Wallachia, it was 1.283 liters of liquid and 1.537 L of grain (dry measure). In Greece, an oka of oil was 1.280 kg. (Wikipedia).
Tokyo 4K - Classic Tokyo Neighborhood - Japan
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Ravi Varmake andani oke oka andanivo
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Crazy Self propelled Howitzers from 75 to 420mm Caliber Size Comparison 3D
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From playlist In the Lab
During the Battle of Okinawa in 1945, the Japanese unleashed massed Kamikaze attacks, including a fearsome new rocket-propelled piloted bomb called the 'Cherry Blossom'. Visit my new audio book channel 'War Stories with Mark Felton': https://youtu.be/xszsAzbHcPE Help support my channel:
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Nigel Higson: The Oka principle and Novodvorskii’s theorem
Talk by Jonathan Rosenberg in Global Noncommutative Geometry Seminar (Americas) http://www.math.wustl.edu/~xtang/NCG-Seminar.html on November 11, 2020.
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