Pasi ndiyo yega nyika yatine chokwadi chekuti inokwanisa kutsigira mhando yehunyanzvi, asi zvishoma zvange zvabhadharwa mukana wekuti, pamusoro pemakore zviuru zvina nezviuru zvina, nyika yedu yakaburitsa hupfumi hwunopfuura humwe chete.
Climatologist Gavin Schmidt, director weNASA's Goddard Institute for Space Study, pamwe naAdam Frank, musayendisiti paUniversity yeRochester, vakasarudza kuongorora fungidziro iyi ndokunyora pamwechete chinyorwa akadana "Iyo Silurian hypothesis: zvingave zvichikwanisika here kuona hunyanzvi hwemaindasitiri mune geological zvinyorwa?"
Izwi rekuti "Silurian" rakakweretwa kubva kuBritain sainzi ngano nhevedzano "Doctor Who", iyo inoreva nhangemutange ye reptilian yaigara paPasi mamirioni emakore isati yatanga nzanga yedu.
Rakadhindwa muInternational Journal yeAstrobiology, bepa rinotsanangura mhando yesiginecha iyo mhuka ine hunyanzvi inogona kusiya kumashure. Schmidt naFrank vanoshandisa maratidziro eAnthropocene, inguva iripo iyo zviitiko zvevanhu zvinokanganisa maitiro epasi, senge mamiriro ekunze uye zvipenyu zvakasiyana, segwara kune izvo zvatingatarisira kubva kune mamwe mabudiriro.
Zvakakosha kuyeuka kuti zvivakwa zvihombe zvekuratidzira hazvigone kuramba zvichichengetwa pamusoro pemakumi emamirioni emakore emakore eiyo geological chiitiko, izvi zvinoshanda kune hupenyu hwevanhu uye kune chero vangangoita "Silurian" vatangiri vePasi.
Panzvimbo iyoyo, Schmidt naFrank vanotsvaga kutsvaga kwezviratidzo zvakavanzika, senge zvigadzirwa zvekushandisa kwemafuta, zviitiko zvekutsakatika kwevanhu, kusvibiswa kwepurasitiki, zvigadzirwa zvekugadzira, kukanganisa kukanganiswa kwekusimudzira kwekurima kana kutema masango uye maisotopu ane radioactive anogona kukonzereswa nemauto enyukireya. .
"Unofanira kunyura munzvimbo dzakasiyana siyana uye unganidza zvaunogona kuona," akadaro Schmidt. “Inosanganisira chemistry, sedimentology, geology nezvimwe zvese izvi zvinhu. Zvinonakidza chaizvo ”, akawedzera.
Drake equation
Chinyorwa chemasayendisiti chinobatanidza iyo Silurian hypothesis kune iyo Drake equation, inova nzira inofungidzirwa yekufungidzira huwandu hwenzvimbo dzakangwara muMilky Way, yakagadzirwa nenyanzvi yekuongorora nyeredzi Frank Drake muna 1961.
Imwe yemhando dzakasiyana muiyo equation inguva iyo budiriro inokwanisa kuendesa zviratidzo zvinoonekwa. Chikonzero chakarongedzerwa chekusakwanisa kusangana nechero mhuka ndeyekuti nguva ino kusiana kunogona kuve kupfupi zvakanyanya, kungave nekuti tekinoroji yakasimudzira budiriro yekuzviparadza kana nekuti ivo vanodzidza kurarama zvine mutsindo munyika dzepamba pavo.
Sekureva kwaSchmidt, zvinokwanisika kuti nguva inoonekwa yebudiriro ipfupi pane kurarama kwayo kwenguva refu, nekuti isu vanhu hatigone kugara kwenguva refu nekuita mhando dzezvinhu zvatiri kuita. Tinomira nekuti takamonana kana kudzidza kusadaro.
Zvisinei, iko kuputika kwezviitiko, marara uye huwandu hwakawanda hwenzvimbo dzekutamba iri, muchokwadi, inguva pfupi kwazvo yenguva. Pamwe zvakaitika bhiriyoni nguva muChadenga, asi dai zvaingogara makore mazana maviri nguva dzese, hatingambozviona.
Silurian Hypothesis
Pfungwa imwecheteyo ndeyechokwadi kune chero epamberi mabudiriro angave akaonekwa paPasi, chete kuzowira mumatongo kana kudzora zviitiko zvinotyisidzira hupenyu hwayo hunobatsira. Iko kune zvirokwazvo zvimwe zvisiri-zvakadaro-zvinyengeri zvidzidzo izvo vanhu zvavanogona kutora kubva kune ino bifurcated nzira iyo, shure kwezvose, yeindasitiri vhezheni yeakare shanduka mantra: chinja kana kufa.
Izvi, zvaSmmidt naFrank, ndeimwe yemisoro yepakati yeSilurian hypothesis. Kana isu tichigona kufungisisa nezve mukana wekuti isu hatisi vekutanga maTerrans kugadzira hunyanzvi hwehunyanzvi, pamwe tinogona kunzwisisa zvirinani mamiriro edu ezvinhu azvino.
"Pfungwa pamusoro penzvimbo yedu muChadenga yave iri yekuzviparadzanisa pachedu kubva pachidzidzo," akadaro Schmidt, achidudza dzidziso dzechinyakare, senge geocentric modhi yeZvese. "Zvakafanana nekusiya zvishoma nezvishoma maonero eudyire, uye fungidziro yeSilurian ingori imwe nzira yekuzviita."
"Tinofanirwa kuva nenjere uye kuvhurika kune ese marudzi ezviitiko, kana tichikwanisa kuona izvo zvakasikwa zvirikutipa." Schmidt akapedzisa.
