[permalink] [id link]
A minute of arc, arcminute, or minute arc ( MOA ), is a unit of angular measurement equal to one sixtieth () of one degree (), or () radians.
from
Wikipedia
Some Related Sentences
minute and arc
The maximum angular diameter of any planetary disk as observed from the earth is about 1 minute of arc.
Since one degree is defined as one three hundred and sixtieth () of a rotation, one minute of arc is of a rotation.
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.
Geographical latitude and longitude are stated in the units degree, minute of arc, and second of arc.
One geographical mile, defined as one minute of arc on the equator, equals 1, 855. 32571922 m. One nautical mile is one minute of astronomical latitude.
The nautical mile ( symbol M, NM or nmi ) is a unit of length that is about one minute of arc of latitude measured along any meridian, or about one minute of arc of longitude at the equator.
Both the Imperial and U. S. definitions of the nautical mile were based on the Clarke ( 1866 ) Spheroid: they were different approximations to the length of one minute of arc along a great circle of a sphere having the same surface area as the Clarke Spheroid.
In the 2002 edition, the glossary says: " An approximate mean value of the nautical mile equal to 6, 080 feet ; the length of a minute of arc along the meridian at latitude 48 °.
The nautical mile was historically defined as a minute of arc along a meridian of the Earth ( north-south ), making a meridian exactly 180 × 60 = historical nautical miles.
The historical definition differs from the length-based standard in that a minute of arc, and hence a nautical mile, is not a constant length at the surface of the Earth but gradually lengthens in the north-south direction with increasing distance from the equator, as a corollary of the Earth's oblateness, hence the need for " mean " in the last sentence of the previous paragraph.
minute and MOA
A military-issue battle rifle or assault rifle is usually capable of between 3-6 minute of angle ( MOA ) ( 1-2 mrad ) accuracy.
minute and ),
in the 13th-century by the alchemist Pseudo-Geber ( Geber ), sometimes identified with Paul of Taranto, that all physical bodies possess an inner and outer layer of minute particles or corpuscles.
Commonly used for storing uncompressed ( PCM ), CD-quality sound files, which means that they can be large in size — around 10 MB per minute.
General Edmund Allenby used infantry, to successfully attack the strong Ottoman front line, under cover of an artillery barrage. This creeping barrage lifted and moved forward at a rate of between 50 yards ( 46 m ), 75 yards ( 69 m ) and 100 yards ( 91 m ) per minute, while 4. 5-inch howitzers fired on points beyond the barrage augmented by the guns of two destroyers firing from the Mediterranean Sea.
However, printers are generally slow devices ( 30 pages per minute is considered fast, and many inexpensive consumer printers are far slower than that ), and the cost per page is actually relatively high.
Bradycardia in an adult is any heart rate less than 60 beats per minute ( bpm ), although symptoms usually manifest only for heart rates less than 50.
Also, due to the limitations of the data structures in the ATIP ( see below ), 90 and 99 minute blanks will identify as 80 minute ones.
In 1977, Saratoga Springs, NY disc jockey Tom L. Lewis introduced the Disco Bible ( later renamed Disco Beats ), which published hit disco songs listed by beats per minute ( tempo ), as well as by either artist or song title.
The special popularity of his longer films, which were several minutes long from 1899 onwards ( while most other films were still only a minute long ), led other makers to start producing longer films.
Thus an hour was 144 conventional minutes ( more than twice as long as a conventional hour ), a minute was 86. 4 conventional seconds ( 44 % longer than a conventional minute ), and a second was 0. 864 conventional seconds ( 13. 6 % shorter than a conventional second ).
In Norway and Sweden, this 4 minute geographical mile was mainly used at sea ( sjømil ), up to the beginning of the 20th century.
Several films followed in the next couple of years, including two 15 minute shorts that are still shown regularly in Norway today, Veslefrikk med Fela ( Little Freddy and his Fiddle ), based on a Norwegian folk tale, and Karius og Baktus, a story by Thorbjørn Egner of two little trolls, representing Caries and Bacterium, living in a boy's teeth.
An alternative representation uses degrees and minutes, where parts of a minute are expressed in decimal notation with a fraction, thus: 23 ° 27. 500 ′ E. Degrees may also be expressed as a decimal fraction: 23. 45833 ° E. For calculations, the angular measure may be converted to radians, so longitude may also be expressed in this manner as a signed fraction of π ( pi ), or an unsigned fraction of 2π.
He added the final sentence of the novel, " He never saw Molly again ", at the last minute in a deliberate attempt to prevent himself from ever writing a sequel, but ended up doing precisely that with Count Zero ( 1986 ), a character-focused work set in the Sprawl alluded to in its predecessor.
During the 1990s, a call to United States cost $ 5 per minute ( 300PkRs per minute ), which was not affordable for most of the population.
minute and is
`` And I am not sure that I have any cash -- any money, that is -- but if you will wait just a minute I will write you out a check if I can find my checkbook.
After a minute he went on, `` People must think the curse is on me, seeing you fresh as an apple and me old and gray ''.
This machine, operating at speeds up to 350,000 revolutions per minute, is believed to provide one of the fastest mechanical operations in industry today.
Thermal conductivity is directly traceable to the material's porous, air-cell construction which effectively traps air or a gas in the maze of minute bubbles which form its composition.
Handling the newts does not cause harm but ingestion of even the most minute amounts of the skin is deadly.
Another of his theological textbooks that strove to be more minute in its focus, is his De Fide Catholica, dated somewhere between 1185 to 1200, Alan sets out to refute heretical views, specifically that of the Waldensians and Cathars.
It might appear at first sight as though one connection would serve, but the differences in pressure on which these instruments depend are so minute, that the pressure of the air in the room where the recording part is placed has to be considered.
The major isotope of berkelium, berkelium-249, is synthesized in minute quantities in dedicated high-flux nuclear reactors, mainly at the Oak Ridge National Laboratory in Tennessee, USA, and at the Research Institute of Atomic Reactors in Dimitrovgrad, Russia.
The maximum 50, 000-point bonus is awarded for clearing a round in 5 seconds or less ; this bonus then drops down to zero over the next minute, after which no bonus is awarded.
A minute is typically spent between each round with the fighters in their assigned corners receiving advice and attention from their coach and staff.
The House is even shown live on satellite television, although in some countries, with a 10-15 minute delay to allow libelous or unacceptable content ( such as references to people who are not taking part in the program and have therefore not consented to have personal information about them broadcast ) to be removed.
For example, in the Schrödinger picture, there is a linear operator U with the property that if an electron is in state right now, then in one minute it will be in the state, the same U for every possible.
0.235 seconds.