Lingaliro la Nthawi mu Chiphunzitso cha Kugwirizana ndi Kupenda Zakuthambo
Nthawi ndi gawo lofunika kwambiri la chilengedwe chonse, lozama komanso lovuta. Kumvetsetsa kwathu nthawi kwasintha kuchoka pa mfundo zosavuta kupita ku mfundo zovuta zokhudzana ndi ubale ndi zakuthambo. M'nkhaniyi, tifufuza lingaliro la nthawi monga momwe tafotokozera ndi chiphunzitso cha Einstein cha ubale ndi momwe chimagwiritsidwira ntchito mu zakuthambo kuti timvetse chilengedwe chonse.
Chiphunzitso cha Einstein cha Kugwirizana
Ubale Wapadera
Mu 1905, Albert Einstein adayambitsa Chiphunzitso Chapadera cha Kugwirizana, chomwe chidawonetsa kuti nthawi ndi malo sizokwanira monga momwe fizikisi yakale ya Newtonian idaganizira. Malinga ndi ubale wapadera, nthawi ndi malo ndi gawo la kapangidwe ka magawo anayi kotchedwa spacetime. Chiphunzitsochi chimapereka malingaliro awiri akuluakulu:
1. Malamulo a sayansi ya zakuthambo ndi ofanana m'mafelemu onse osagwiritsidwa ntchito.
2. Liwiro la kuwala mu vacuum ndi lofanana kwa onse owonera, mosasamala kanthu za kayendedwe ka kuwala komwe kwachokera kapena wowonera mwiniwake.
Zotsatira za chiphunzitsochi zinali zosiyana kwambiri. Chimodzi mwa izo ndi chochitika chodziwika kuti nthawi yowonjezereka. Izi zikusonyeza kuti nthawi imatha kupita pang'onopang'ono pazinthu zomwe zimayenda mofulumira poyerekeza ndi zinthu zomwe sizimayenda kapena kuyenda pang'onopang'ono. Mwachitsanzo, woyenda m'mlengalenga akuyenda mu chombo cha m'mlengalenga pafupifupi liwiro la kuwala angakumane ndi nthawi ikuyenda pang'onopang'ono kuposa munthu amene amakhala padziko lapansi. Izi zikufotokozedwa ndi equation ya Lorentz.
Kugwirizana Kwathunthu
Chiphunzitso cha Einstein cha General Relativity, chomwe chinayambitsidwa mu 1915, chinakulitsa lingaliro ili kuti liphatikizepo mphamvu yokoka. Mu relativity yonse, mphamvu yokoka si mphamvu yokha, koma zotsatira za kupindika kwa nthawi ya malo chifukwa cha kulemera ndi mphamvu. Misa yayikulu imapangitsa kuti nthawi ya malo ipindike, ndipo zinthu zomwe zikuyenda mu nthawi ya malo zikutsatira njira zomwe zimatsimikiziridwa ndi kupindika kumeneku.
Zotsatira za kugwirizana kwa nthawi zimatchedwa kuti gravitational time dilation. Pankhaniyi, nthawi imayenda pang'onopang'ono pafupi ndi zinthu zomwe zili ndi mphamvu yokoka. Mwachitsanzo, nthawi imayenda pang'onopang'ono pamwamba pa Dziko Lapansi kuposa mumlengalenga chifukwa cha mphamvu yokoka ya Dziko Lapansi. Zotsatirazi ziyenera kuganiziridwa muukadaulo wa GPS, komwe ma satellite a GPS omwe ali m'malo okwera (okhala ndi mphamvu yokoka yofooka) ayenera kuyesedwa kuti atsimikizire nthawi yolondola poyiyika pamwamba pa Dziko Lapansi.
Lingaliro la Nthawi mu Zakuthambo
Sayansi ya zakuthambo ndi sayansi yomwe imadalira kwambiri kumvetsetsa nthawi. Nthawi imalola akatswiri a zakuthambo kutsatira mayendedwe a nyenyezi ndi mapulaneti, kudziwa zaka za chilengedwe chonse, ndikumvetsetsa zochitika zina zakuthambo. Pali mfundo zingapo zofunika mu sayansi ya zakuthambo zokhudzana ndi nthawi:
Zaka Zowala
Njira imodzi yayikulu yomwe akatswiri a zakuthambo amayezera mtunda ndi kugwiritsa ntchito lingaliro la chaka chowala, chomwe ndi mtunda womwe kuwala kumayenda chaka chimodzi. Liwiro la kuwala ndi pafupifupi makilomita 299.792 pa sekondi, kotero chaka chowala ndi pafupifupi makilomita 9,46 thililiyoni. Pomvetsetsa mtunda wa nyenyezi ndi milalang'amba mu zaka zowala, akatswiri a zakuthambo amatha kumvetsetsa kukula ndi kukula kwa chilengedwe chonse.
Nthawi ya Zakuthambo
Mu sayansi ya zakuthambo, njira zosiyanasiyana zowerengera nthawi zimagwiritsidwa ntchito poyesa ndi kulemba zochitika. Zina mwa izi ndi izi:
– Universal Time (UT): Dongosolo la nthawi ili limadalira kuzungulira kwa Dziko Lapansi ndipo limagwiritsidwa ntchito ngati muyezo wa nthawi padziko lonse lapansi.
– Nthawi Yozungulira: Mosiyana ndi nthawi ya dzuwa, yomwe imadalira malo a Dzuwa, nthawi yozungulira imadalira kuzungulira kwa Dziko Lapansi poyerekeza ndi nyenyezi zakutali. Akatswiri a zakuthambo amagwiritsa ntchito poyang'ana zinthu zinazake mumlengalenga usiku.
– Nthawi ya Dziko Lapansi (TT): Iyi ndi nthawi yomwe imagwiritsidwa ntchito mu ephemeris kapena matebulo a malo a thupi lakumwamba. Imaganizira mphamvu yokoka ya mapulaneti ena kuti adziwe malo olondola.
Nkhani Yofalitsidwa ndi Cosmological Time
Lingaliro la nthawi mu sayansi ya zakuthambo nthawi zambiri limakhudza nthawi yayitali kwambiri, yomwe ikuyandikira nthawi ya chilengedwe chonse. Asayansi amagwiritsa ntchito chitsanzo cha Big Bang pofotokoza chiyambi cha chilengedwe chonse, chomwe akuti chinachitika zaka pafupifupi 13,8 biliyoni zapitazo. Mwa kuphunzira kuwala kuchokera ku zinthu zakutali kwambiri, akatswiri a zakuthambo amatha kuyang'ana mmbuyo mu nthawi ndikufufuza momwe chilengedwe chinalili poyamba. Kuwala komwe timalandira kuchokera ku milalang'amba yomwe ili kutali ndi zaka mabiliyoni ambiri kumatithandiza kuwona milalang'amba imeneyo momwe inalili ali achinyamata.
Zotsatira Zogwirizana ndi Zinthu mu Astronomy
Zotsatira za kugwirizana kwa zinthu zimaonekeranso kwambiri mu zakuthambo. Chitsanzo chimodzi ndi kuona zinthu zosazolowereka mu kayendedwe ka Mercury zomwe sizingathe kufotokozedwa mokwanira ndi mphamvu yokoka ya Newtonian. Kuphatikizana kwa zinthu kumapereka kuwerengera kolondola kwa kayendedwe ka Mercury poganizira zotsatira za kuzungulira kwa nthawi ndi malo kwa Dzuwa.
Kuphatikiza apo, mphamvu yokoka ya nthawi yokoka imagwira ntchito yofunika kwambiri pakumvetsetsa kwathu mabowo akuda. Pafupi ndi nthawi ya dzenje lakuda, nthawi imachepa kwambiri poyerekeza ndi wowonera wakutali. Izi zimapangitsa kuti zinthu zomwe zikubwera pa dzenje lakuda ziwoneke ngati zikuyima chilili kwa wowonera wakutali.
Lingaliro la Nthawi mu Exoplanets ndi Astrobiology
Kafukufuku wokhudza mapulaneti akunja ndi kuthekera kwa moyo m'mapulaneti ena amadaliranso kwambiri kumvetsetsa nthawi. Pogwiritsa ntchito njira yoyendera, akatswiri a zakuthambo amatha kuzindikira mapulaneti omwe ali kunja kwa dongosolo lathu la dzuwa poyesa kutsika kwa kuwala kwa nyenyezi komwe kumachitika pamene dziko lapansi likudutsa patsogolo pa nyenyezi yomwe ili nalo. Nthawi yoyendera iyi imapereka chidziwitso chofunikira chokhudza kukula kwa dziko lapansi, kuzungulira kwake, ndi zinthu zina.
Kuthekera kwa kukhala ndi moyo m'mapulaneti ena kumabweretsanso mafunso ambiri okhudza nthawi ya zakuthambo. Kodi moyo unasintha bwanji pa nthawi yayikulu chonchi? Kodi moyo unatenga zaka mabiliyoni ambiri kuti ukhalepo, monga momwe unachitira pa Dziko Lapansi, kapena kodi moyo unasintha mofulumira kwambiri m'mikhalidwe yosiyanasiyana?
Mapeto
Kumvetsetsa kwathu lingaliro la nthawi kwasintha kwambiri kuchoka pa kuganiza kwa Newton kupita ku lingaliro lovuta kwambiri kudzera mu chiphunzitso cha Einstein cha ubale ndi momwe zimagwiritsidwira ntchito mu zakuthambo. Nthawi siilinso yokwanira, koma imakhudzidwa ndi liwiro ndi mphamvu yokoka. Mu zakuthambo, kumvetsetsa nthawi ndikofunikira poyesa mtunda, kutsatira mayendedwe a zinthu zakuthambo, ndikufufuza za kusintha kwa chilengedwe.
Zotsatira za relativistic ziyenera kuganiziridwa pakuwunika kosiyanasiyana kwa zakuthambo, kuphatikizapo kugwiritsa ntchito GPS pa Dziko Lapansi ndi kuphunzira mabowo akuda. Kuphatikiza apo, kufufuza kwa exoplanet ndi astrobiology zikutsegula miyeso yatsopano pakumvetsetsa kwathu moyo ndi nthawi m'chilengedwe chonse chachikulu.
Ndi kugwirizana kwapafupi pakati pa chiphunzitso cha ubale ndi zakuthambo, tikuzindikira kuti nthawi ndi yolemera kwambiri komanso yovuta kwambiri kuposa momwe tinaganizirapo. Kafukufuku akupitiliza kufufuza mozama za zinsinsi za nthawi, mlengalenga, ndi chilengedwe chonsecho.
