Igqityelwe ukuvuselelwa ngoSeptemba 26, 2021 ngu URoger Kaufman
Amagama amahle avela kuNjingalwazi uCarl Sagan
Umhlaba lisuntswana lothuli kwindalo iphela - Umhlaba linqanaba elincinci kwibala elikhulu le-cosmic kwaye, okwangoku, indawo yethu yokuhlala kuphela.
Ukusuka: WissenMagazin | Yadalwa: ngoMatshi 13.03.2010, XNUMX
I-Spaceship Earth: Isuntswana lothuli kwindalo iphela.
Ichaphaza eliBlue ligama lenye Iifoto Zomhlaba, zithathwe sisiphekepheke seVoyager 1 kumgama omalunga neebhiliyoni ezi-6,4 zeekhilomitha, owona mgama mkhulu ekukhe kwathathwa kuwo umfanekiso woMhlaba.
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• http://www.youtube.com/ScienceMagazineUmfanekiso uthathwe ngoFebruwari 14, 1990 njengenxalenye yemifanekiso ye-60 ebonisa yonke inkqubo yelanga kunye neeplanethi ezithandathu ezibonakalayo.
Ngokwengcebiso yesazi ngeenkwenkwezi uCarl Sagan Emva kokugqiba iinjongo eziphambili zemishini, iVoyager 1 yajikeleza i-degrees ze-180 kwaye yathatha uchungechunge lwe-39 ebanzi-engile kunye nemifanekiso ye-telephoto ye-21.
Ngexesha lokuthatyathwa kwalo mfanekiso, isiphekepheke sasimalunga ne-6 ukuya kwi-7 yeebhiliyoni zeekhilomitha ukusuka eLangeni kunye nama-32 degrees ngaphezu kwe-ecliptic, ngoko sasijonge kwisixokelelwano selanga ukusuka phezulu.
Umhlaba wafotwa ngekhamera ye-telephoto usebenzisa izihluzi zemibala eluhlaza, eluhlaza kunye ne-violet. Imitha edlula emfanekisweni yenzeke njengokukhanya kwelanga kukukhanya kwekhamera, njengoko yayingenzelwanga ukujoliswa ngokuthe ngqo elangeni. Umhlaba uthatha kuphela i-12% yepixel enye.
Lo mfanekiso waphefumlela uSagan ukuba abhale incwadi yakhe ethi “Blue Dot in Space. Indalo yethu yasekhaya." Oosonzululwazi bavotela ifoto ukuba ibe yenye yezona foto zilishumi zibalaseleyo kwisayensi yasemajukujukwini ngowama-2001.
Ukudubula okubanzi kwelanga kuthathwe ngesihluzo esimnyama kunye nexesha elifutshane elinokwenzeka lokuvezwa (5/1000th yesekhondi) ukunqanda ukuba sesichengeni esigqithisileyo.
Ngexesha lokurekhoda, ilanga laliyi-1/40 kuphela i-diameter ebonakalayo njengoko ibonwa eMhlabeni. Nangona kunjalo, isekho izigidi ezisi-8 ngokuqaqamba ngakumbi kuneyona nkwenkwezi iqaqambileyo, uSirius.
Ingozi yomntu kwisiphekepheke Umhlaba - Umhlaba lisuntswana lothuli kwindalo iphela
Ingcamango yeAnthropocene ibeka abantu embindini wembali yomhlaba. Ingxoxo yezentlalo neenkqubo ezahlukeneyo malunga noku inyuke kakhulu kutsha nje; isibonisa ngokucacileyo amehloukuba wonke ummi ngamnye womhlaba uthatha uxanduva ngesijikelezi-langa. Kumahluko omhlaba ngoku kukho nengxoxo-mpikiswano malunga nokubandakanya ixesha elitsha lokwakheka komhlaba elibizwa ngokuba yi-Anthropocene kuluhlu lwamagama olusemthethweni lwee-stratigraphers.
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