Yawan taurari da kuma tsarin da sararin samaniya

definition na rashin iyaka

Universe - wani tarin duk da cewa akwai a cikin halittu. Shi ne iyaka a sarari, domin wanda ba zai iya designate da iyaka. Shi ne madawwami a lokaci domin an riga da wani babban kara, da kuma bayan sanyaya ne har yanzu wani abu da zai faru a can. Da muhimman hakkokin kimiyya karatu mutum aka gyara na duniya: Chemistry ya duba cikin kwayoyin duniya, kimiyyar lissafi - na farko barbashi da kuma kwayoyin halitta, da ilmin halitta ne ke da alhakin nazarin mamaki yanayi. A tsarin da duniya a matsayin dukan da aka karatu cosmology dogara ne a kan ka'idar ilmin taurari.

model na sararin samaniya

A m cin gaban cybernetics a daban-daban bincike entailed kara Popularity na tallan kayan kawa ka'idar. Jigon wannan ka'idar ne nazari na model m ga asali real abu. Samar da model na mutum mamaki da taimako zuwa a-zurfin nazari na kewaye duniya. Na dogon lokaci ilmin Taurari sun rayayye karatu da tsarin da sararin samaniya da kuma kirkiran kama (isotropic).

Einstein samarwa da cylindrical model a cikin abin da gida curvature ayyana lokaci da kuma sarari gubar zuwa duniya curvature talikai. A wannan model, lokacin tsara ba a lankwashe à, watau gaba ɗaya lokaci ke daga baya zuwa nan gaba. Bugu da ƙari, wannan samfurin da aka inganta astrophysicist Villemom De setter, wanda ya nuna cewar baya na ja shift, lokaci na tafiya daban a sassa daban daban na duniya.

Yau, mafi m model na fadada samaniya, samarwa da Friedman. A wannan ra'ayi, tsarin da duniya tana da duniya curvature na kullum gravitating talakawa. A duniyar kimiyya muhawara biyu gyare-gyare fadada model:

- rufaffiyar model kwakwalwa sauka a hankali deceleration fadada a sakamakon gravitational deceleration.

- bude model da shawara a inda hakan ya fadada cikin wani izuwa dogon lokaci.

Duk wani model na sararin samaniya ne kawai kwafi na real abu, sabili da haka sakamakon da binciken zalla msar tambayar, suka bukatar m tabbatarwa.

Galaxy a cikin sararin samaniya

Yau, Duniya masana kimiyya kalla daya kawai sararin samaniya, amma ba dalilin da tabbatarwa cewa shi ne na musamman. Tsari da kuma Evolution halittu ne a duniya kalubale ga cosmological karatu. Duk da taurari da kuma basamaniyai garwaya a cikin wata babbar star tsarin, kira taurari. Kowane galaxy yana da wani tsakiyar core, da karkace rungume shi, wanda bakuncin babban adadin taurari, da kuma periphery a cikin nau'i na girgije, kunsha na rare taurari. Stars aka haife, rayuwa, da motsi a sarari, da kuma mutuwa. A mu galaxy, da tsakiyar star ne Sun, cikin wani sarari suKe jikin su, kamar shi, rayuwa daga 10 zuwa shekaru biliyan 15. Yanzu da rana ne a tsakiyar shekaru.

A galaxy da muke rayuwa da ake kira da Milky Way saboda ta jirgin sama tare da matsakaicin yawan taurari, gas da kuma kura ne bayyane a cikin dare sama kamar m haske. A band wannan haske kewaye da fadi da zobe na dukan sama. Milky Way - da galaxy ba kawai, bangaren na tsarin da sararin samaniya. Akwai babbar dama taurari da m taurari. Alal misali, da Andromeda galaxy da Magellanic girgije, located a kan wani baba misali nesa daga gare mu.

A tsarin da rarraba al'amarin

A tsarin da duniya ne da jari na lebur zanen gado galactic, rabu da yankuna a wadda ma babu luminescent abu. Wadannan voids da girman game da 100 Mpc. A farko takardar da aka lura Great Wall, located a nesa daga miliyan 200 m shekaru. Great Wall - wani rukuni na taurari, da ciwon kauri miliyan 15 haske .. shekaru da kuma size - miliyan 500 DM .. shekaru.

A tsarin da duniya matsayi na Duniya yana da wadannan halaye: hasken rana planetary tsarin, mai gida kungiyar na gungu da superclusters na taurari, da Orion hannu, da galaxy - da Milky Way.