Geographical mile longitude at the equator is thus exactly 60 geographical miles. It was closely related to the nautical mile, which was originally determined as 1 minute of arc along a great circle of the Earth, but is nowadays defined as exactly 1852 metres. The US National Institute of Standards and Technology (NIST) notes that: "The international nautical mile of 1 852 meters (6 076.115 49...feet) was adopted effective July 1, 1954, for use in the United States. The value formerly used in the United States was 6 080.20 feet = 1 nautical (geographical or sea) mile." (6080.2 feet is 1853.24496 meters.)
Methods-time measurement MTM is TMU (time measurement unit): 1 TMU = 36 milliseconds ; 1 hour = 100,000 TMU 1 TMU = 0.036 second depending on length one TMU=0.032 Methods-time measurement Methods-Time Measurement (MTM) is a predetermined motion time system that is used primarily in industrial settings to analyze the methods used to perform any manual operation or task and, as a product of that analysis, set the standard time in which a worker should complete that task. MTM was released in 1948 and today exist in several variations, known as MTM-1, MTM-2, MTM-UAS, MTM-MEK and MTM-B. Some MTM standards are obsolete;