Mene ne wani nautical mil da abin da yake kulli?

A cikin littattafai na Voyages da Kasadar, a fina-finan game da matsananciyar navigators, articles a kan topic da kuma yanayin tattaunawar tsakanin mariners sau da yawa slips Kalmar "nautical mil". Yana da lokaci don gane abin da yake ma'aunin tsawon in shipping, da kuma matuƙan me ya sa ba mu saba amfani da kilomita.

Mene ne 1 nautical mil?

Da farko, wannan darajar yayi dace da tsawon na 1/60 da wani mataki baka na da'irar a farfajiya na Duniya da cibiyar zo daidai da cibiyar na duniya. A wasu kalmomin, idan muka yi la'akari da wani Meridian, da nautical mil ne kamar daidai da tsawon minti daya na latitud. Saboda ƙasa ne dan kadan daban-daban daga manufa ball siffar, da tsawon 1 minti daya mataki Meridian dauke iya bambanta da ɗan, dangane da latitud. Mafi yawa daga cikin nesa a zura sandunan - 1861,6 m, kuma mafi ƙasƙanci a ekweita -. 1842,9 m Don kauce wa rikice, shi da aka samarwa a daidaita da tsayin wani nautical mil. Dalili soma tsawon na 1 minti daya a 45º digiri latitud (1852.2 mita). Irin wannan definition ya haddasa abin da ya zama nautical mil sauki yin lissafi kewayawa ayyuka. Alal misali, idan kana so a kan taswira don auna nesa na 20 mil, to, wannan zai zama isa ya auna kamfas 20 baka minti kan kowane Meridian, taswira.

Tun da 1954, Amurka ta fara amfani da kasa da kasa nautical mil (1852 mita). Ta yi sau da yawa taso keya zuwa 1800 mita. The hukuma nadi wannan naúrar ba a karɓa. Wani lokaci akwai wani akan rage «nmi», «nm» ko «NM». Af, «nm» ne da na kowa nadi na wani nanometer. 1/10 duniya nautical mil = 1 = 185.2 mita USB tsawon. A 3-mil marine daidaita 1 league. A Birtaniya, shi ya sau da yawa amfani kansa nautical mil ne daidai 1853.184 mita. A shekara ta 1929, a Monaco, taron kasa da kasa kishin daban-daban al'amurran da suka shafi hydrography, inda nautical mil tsawon tsare a 1852,00 mita. Kada ka manta da cewa Mile ne ba kawai marine amma kuma ƙasar. A wannan yanayin, ta tsawon shi ne 1.151 sau kasa da cikin teku.

Mene ne dangantakar da take tsakanin teku da mil guda da kuma wani kumburi?

Mile Marine (nautical mil) ko kamar yadda wani lokacin ake kira, yanayin ko kewayawa, an yi amfani da ko'ina a cikin labarin kasa, jiragen sama da navigation. Tun da shi ne a hankali alaka da manufar marine taro amfani a cikin shipping masana'antu a matsayin muhimman naúrar na gudu. Daya naúrar ne daidai da daya mil awa traversed da jirgin ruwa. Sunan "kumburi" saboda gaskiyar cewa, a zamanin da a kan jirgin ruwa ake amfani da aunawa gudu fada. Shi ne mai log ko jirgin a cikin siffar wani alwatika, to wanda aka a haɗe load. Irin wannan drogue zama a haɗe lin (igiya), wanda ta hanyar wani nesa daura nodes. Fada bayan jefar overboard, sa'an nan ga wani zabi lokaci (daga 15 seconds to 1 minti) da aka kidaya a matsayin nodes bar ruwan.

Akwai daban-daban versions game da nisa tsakanin nodes. Wasu yi imani da cewa shi ne 25 feet (7.62 m), da kuma idan 15 seconds bar daya kumburi, sakamakon da aka samu, daya nautical mile (100 ft / min). Kamar yadda na biyu version, kullin daura ta 47 feet 3 inci (14.4018 m), da kuma count ya 28 seconds. A wannan yanayin, daya naúrar nuna rate 101,25 ƙafãfunsu / min.

Da fatan a yanzu kana da ba wahala cikin fahimtar marine terminology, da kuma wani mile daga nodes zai zama kamar bayyananne kamar yadda ya saba kilomita.