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Airplanes. --- Measuring instruments. --- Recording instruments.
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Handbook 44 was first printed in 1949, having been preceded by similar handbooks of various designations and in several forms. This 2016 edition was developed by the Committee on Specifications and Tolerances of the National Conference on Weights and Measures (NCWM) with the assistance of the Office of Weights and Measures of the National Institute of Standards and Technology (NIST). The handbook includes amendments adopted by the 100th Annual Meeting of the NCWM in 2015. NIST Handbook 44 is published in its entirety each year following the NCWM Annual Meeting.
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Astrology and meteorology have always had great importance for agriculture and navigation. They are described some measuring and forecasting instruments which, in the past, had a moderate success to navigate the Mediterranean, but they were forgotten because they were supplanted by other more reliable instruments in oceans. We refer to: parapegma, (made when meteorology was still a particular aspect of astrology); a calculator for determining the position of stars; instruments to establish position of a ship with respect to the Sun or the North Pole and to determine ships direction and speed.
Nautical astronomy --- Meteorological instruments. --- Instruments.
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