Moon: Uphando

Chronometers ekuqaleni kwenkulungwane ye-18, eminyaka embalwa emva kokuba kusungulwe Huygens abazange kwahluka ukuchana ngakumbi, yaye ngoko akunakwenzeka ukuba basebenzise ubungqina babo kuphela ekumiseleni indawo umkhombe; kuphela ebudeni benkulungwane ye-19 baba kakhulu ezifanelekileyo injongo yabo.

Ngenxa yoko, ukuba iinkulungwane, 1/2 inyanga unalo uncedo efanayo njengoko ibinayo nge izibalo Regiomontanus Amerigo Vespucci ; iza kuqhubeka ngokubonelela le nkonzo kwiimeko apho chronometer uyala ukwenza umsebenzi walo okanye xa ufunda kuya kufuneka kulawulwe. Moon: ukufunda ...

Le uncedo nenyanga sikuko yokuba ngokusekelwe thiyori mbutho kweNyanga, ziye kakhulu egqibelele, ibalwe iminyaka embalwa kwangaphambili ukuba ixesha elithile, elinye emva kwelinye, iiyure ubuncinane ezintathu kamva, indawo ahlala embindini zenyanga disk kuthelekiswa iinkwenkwezi eziqaqambileyo awunakho ilanga; ezi zibalo zipapashwa kwiitheyibhile, ebizwa ngokuba yi-leekhalenda, kunye Yonyaka.

Xa isikhundla nenyanga iyaziwa mzuzu lokuqaphela phakathi imizuzwana embalwa arc, ngokuhlola Greenwich Mean Time, ngoko, kulinganiswa usebenzisa imitha efanelekileyo benyanga kude ilanga okanye nayiphi na enye inkwenkwezi, abazikhundla ngalo mzuzu yaziwa, inga fumaneka here Greenwich ixesha, t. e, i bade wobude sentshinyela okanye yeGreenwich okuyi.

(Local Meridian namnye ngaphandle kwesangqa enkulu wacanda ujikelezo mihla kwipali kunye bade indawo kule ndawo). Le nkcazo yenza kube lula ukufumana owehlayo kwisiza Makugcinwe iyafana nendlela oku kuphunyezwa ngokusebenzisa chronometer, leyo ikhankanywe ngasentla.

Isiseko ukuze kubalwe ngokuchanekileyo ngakumbi kwizikhundla nenyanga isibhakabhaka yemini eyimfuneko Newton; ABANTU njongo, theoreticians kunye iikhalityhuleyitha abeza emva kwakhe, yaye nje ukuphucula ngakumbi ithiyori ihambisane intanethi. Ngawo onke amaxesha, inyanga ibe nempembelelo enkulu phezu komhlaba. rhoqo phezu komhlaba kwenzeka izinto ezingaqhelekanga xa inyanga inxalenye enye okanye omnye umqondiso zokuma (yeNyanga Sagittarius, yeNyanga Taurus).

Moon: ukufunda