Izindlela Zesayensi Emivubukulweni Yangaphambi Komlando
Isayensi yezinto zakudala zangaphambi komlando iwumkhakha wesayensi ofunda ngokuphila komuntu ngaphambi kwamarekhodi abhaliwe. Ngenxa yokuthi imibhalo ebhaliwe ayitholakali, izazi zezinto zakudala kumele zithembele ebufakazini obuphathekayo njengamathuluzi amatshe, izinsalela zokudla, amathambo, iminonjana yezindawo zokuhlala, kanye nezinguquko zemvelo eziqoshwe ezidakeni. Ukuze kuhunyushwe ngokunesibopho bonke lobu bufakazi, isayensi yezinto zakudala isebenzisa indlela yesayensi: uchungechunge lwezindlela ezihlelekile, ezilinganisekayo, ezivivinywayo, neziphindaphindwayo. Le ndlela isiza izazi zezinto zakudala ukwakha kabusha okunokwenzeka kwesikhathi esidlule ngenkathi kunciphisa ukuqagela.
Ukuvubukula njengesayensi: kusukela emibuzweni kuya emibonweni
Indlela yesayensi iqala ngokwakhiwa kombuzo wocwaningo. Esikhundleni sokumane "bafune izinto zasendulo," izazi zemivubukulo yasendulo zibuza imibuzo eqondile: indawo yahlalwa nini? Yayiyini imikhuba yabo yokuphila—ukuzingela, ukuqoqa, noma ukulima? Ubuchwepheshe bamathuluzi bathuthuka kanjani? Ingabe kwakukhona ukuxhumana phakathi kwamaqembu? Lolu hlobo lwemibuzo bese ludala imibono, ukucabanga okungaqiniseki, okungahlolwa. Isibonelo, "amaqembu angaphambi komlando ezindaweni ezisogwini asebenzisa kabi izinsiza zasolwandle" noma "ushintsho lwesimo sezulu lwathonya amaphethini okuhlala kusukela emihumeni kuya emathafeni avulekile."
Le mbono ayimi yodwa, kodwa ihlolwa ngokuqoqwa kwedatha yasensimini, ukuhlaziywa kwelabhorethri, kanye nokuqhathaniswa nokutholakele kwezinye izindawo. Ngale ndlela, ukuvubukulwa kwezinto zakudala kushintshela encazelweni kuye encazelweni.
Ukuhlola nokubhala imephu: ukuthola umongo ngaphambi kokumba
Isinyathelo sokuqala esibalulekile ukuhlola. Ucwaningo lwezinto zakudala luhlose ukuhlonza izindawo ezingaba khona nokuqonda ukusatshalaliswa kwezinsalela endaweni. Izindlela zingasukela ekuhloleni okungaphezulu (ukubuka izinto ezibonakalayo phansi), ukuhlola okuhlelekile kusetshenziswa ama-transect noma ama-grid, kuya kumamephu asekelwe kubuchwepheshe njenge-GPS, izithombe zesathelayithi, ama-drones, kanye ne-LiDAR (Ukutholwa Kokukhanya Nokulinganisa). Lobu buchwepheshe buvumela abavubukuli ukuthola izakhiwo ezifihliwe yizitshalo noma i-topography engabonakali ekhombisa imisebenzi yabantu edlule.
Ucwaningo luphinde lusize ekuqondeni umongo wendawo: ukusondela emithonjeni yamanzi, ukutholakala kwezinto zamatshe, ukufinyelela ezindaweni zokuzingela noma ezweni elivundile, kanye nengozi yezinhlekelele zemvelo. Emivubukulweni yasendulo, umongo uvame ukubaluleka njengento yobuciko uqobo. Izembe lamatshe elitholakale lingenandawo ecacile libiza kancane kakhulu kunelo elaziwa ukuthi livela ongqimbeni oluthile endaweni ehlelwe kahle.
Ukumba kwe-stratigraphic: ukufunda "izendlalelo zesikhathi"
Ukumba kuyindlela eyinhloko yokuthola idatha elawulwayo. Indlela yesayensi igcizelela ukumba okune-stratigraphic, okuhlanganisa ukumba izingqimba zomhlabathi (strata) ezakhiwe yizinqubo zemvelo kanye nemisebenzi yabantu. Isimiso esiyisisekelo ukuthi izingqimba ezijulile ngokuvamile zindala kunezingaphezulu kwazo, ngaphandle kokuthi ziphazanyiswe ukudilika komhlabathi, imisebenzi yezilwane, noma ukumba kabusha kwabantu.
Ngesikhathi sokumba, abavubukuli baqopha indawo yokutholwa ngakunye—ukujula kwakho, izixhumanisi, ukuhlangana nezici (isib., iziko, imigodi, amathuna), kanye nezici zodaka. Lokhu kuqoshwa kudala irekhodi elingaqinisekiswa. Inqubo yokubhala ihilela izithombe, imidwebo, amanothi asensimini, ngisho nokumapha okunezinhlangothi ezintathu. Amaphrojekthi amaningi anamuhla nawo asebenzisa i-photogrammetry ukudala amamodeli anembile e-3D wezendlalelo nezici.
Ukuqomisana: ukunquma ubudala bamasayithi kanye nokutholwayo
Ukuphendula umbuzo othi “nini?” kuyisisekelo sesayensi yezinto zakudala. Izindlela zesayensi zinikeza izindlela ezahlukene zokuqomisana, ngokuvamile ezihlukaniswe phakathi kokuqomisana okuhlobene kanye nokuqomisana okuphelele.
Izindawo zokuthandana ezihlobene zithola ngokulandelana kwezikhathi ngaphandle kokunikeza izinsuku eziqondile. Izibonelo zifaka phakathi uhlobo lwezinto zobuciko—ukuhlanganisa amathuluzi ngesimo kanye nendlela yokukhiqiza ukuze ubone izinguquko ngokuhamba kwesikhathi—kanye nokuhlaziywa kwe-stratigraphic.
Ukuqomisana okuphelele kunikeza isilinganiso seminyaka ngeminyaka. Indlela eyaziwa kakhulu ukuqomisana nge-radiocarbon (C-14) kwezinto eziphilayo ezifana namalahle, amathambo, noma okusanhlamvu. Ezimweni ezindala noma izinhlobo ezithile zezinto, abavubukuli bangasebenzisa ukuqomisana nge-luminescence (OSL/TL), okulinganisa ukuthi amaminerali agcina nini ukudalulwa ekushiseni noma ekukhanyeni, noma ukuqomisana nge-uranium-series kwe-calcite emihumeni kanye nezinsalela ezithile. Ukukhetha indlela kuncike ohlotsheni lwesampula, izimo zendawo, kanye nobubanzi beminyaka eqondiwe.
Ukuhlaziywa kwezinto ezidaliwe: ubuchwepheshe, umsebenzi, kanye nokuziphatha
Izinto zobuciko zangaphambi komlando—ikakhulukazi amathuluzi amatshe—ziqopha izinketho zobuchwepheshe kanye namasu okuphila. Ukuhlaziywa kwesayensi akuhloli nje kuphela ukuma kwethuluzi kodwa futhi nezinto zokusetshenziswa, amasu okukhiqiza (isb., ukuklwebheka, ukucindezela, ukugaya), kanye nemikhondo yokusetshenziswa (ukuhlaziywa kokusetshenziswa). Ama-microscope asiza ekuboneni imihuzuko emincane ekhombisa ukuthi ithuluzi lalisetshenziselwa ukusika inyama, ukutshala izitshalo, ukusebenza ngokhuni, noma ukuklwebha izikhumba.
Ngaphezu kwalokho, ukuhlaziywa kwezinsalela kungathola izinsalela ezincane ezifana nesitashi, ama-phytolith, noma amaprotheni anamathele ezindaweni zamathuluzi. Lokhu kuvumela abavubukuli ukuthi baxhumanise izinto zobuciko nemisebenzi ethile, kunokumane baqagele.
I-Bioarchaeology kanye ne-archeozoology: ukuqonda umzimba nokudla
Izindlela zesayensi zihlanganisa nokutadisha izinsalela zabantu nezilwane. I-Bioarchaeology ihlola amathambo abantu ukuze iqonde izibalo zabantu (ubudala, ubulili), impilo, amaphethini ezifo, umsebenzi womzimba, kanye nemikhuba yokungcwaba. Izimpawu emathanjeni, njengokuhlukumezeka, izimpawu zokungondleki kahle, noma izinguquko zemisipha, zingasiza ekwakheni kabusha impilo yansuku zonke.
Izazi zemivubukulo zihlola amathambo ezilwane: ukuthi yiziphi izinhlobo ezazizingelwa noma ezifuywayo, yiziphi izingxenye zomzimba ezalethwa endaweni, ukuthi zanqunywa kanjani, nokuthi ngabe zikhona yini izimpawu zokusha. Lokhu kuhlanganiswa kwedatha kwembula amasu okuphila, isikhathi sokuhlala, kanye namazinga obunzima kwezomnotho.
I-Archaeobotany kanye nemvelo: ubudlelwano phakathi komuntu nemvelo
I-archaeobotany ihlaziya izinsalela zezitshalo ezifana namalahle, imbewu, impova, ama-phytolith, kanye nezinsalela zesitashi. Kulokhu, izazi zemivubukulo zinganquma ukusetshenziswa kwezitshalo zasendle, ukuqala kokufuywa kwezitshalo, kanye nezinguquko ezitshalweni ngenxa yomsebenzi womuntu. Ukuhlaziywa kwezinsalela kanye ne-geology yendawo (i-geoarchaeology) kusiza ukuqonda inqubo yokwakheka kwendawo: ukuthi izendlalelo zakhiwa yini yizikhukhula, ukuqhuma kwezintaba-mlilo, umsebenzi womhume, noma ikhishi elingaphakathi.
Izindlela ze-isotope ezizinzile nazo ziya ngokuya zibaluleke kakhulu. Ama-isotope e-carbon ne-nitrogen emathanjeni angabonisa uhlobo lokudla (isb., imithombo yasolwandle vs. imithombo yasemhlabeni, izitshalo ze-C3 vs. C4). Ama-isotope e-strontium angabonisa ukuhamba—kungakhathaliseki ukuthi umuntu wakhulela endaweni efanayo lapho angcwatshwa khona noma athuthelwa kwenye indawo.
Ukuhlolwa kanye nokuphindaphindwa: ukuhlola amathuba
Enye yamandla endlela yesayensi ukuhlola izinto zakudala. Abavubukuli benza amakhophi amathuluzi amatshe, bahlole amasu abo okukhiqiza, bese bewasebenzisa emisebenzini ethile. Imiphumela iqhathaniswa nezimpawu zezinto zakudala. Ngale ndlela, imibono mayelana nomsebenzi wethuluzi, usuku lokukhiqiza, noma ukusebenza kahle kobuchwepheshe ingahlolwa ngendlela engathathi hlangothi.
Ukuhlolwa kuphinde kusetshenziswe ekwakhiweni kabusha kwezindlu, ukushiswa, noma izinqubo zokulondolozwa kokudla. Nakuba kungenakukwazi ukuphinda ngokuphelele izimo zangaphambilini, kusiza ukunciphisa ukuhumusha okungenzeka futhi kwandise ukunemba.
Ukuhlanganiswa kwedatha nokuchazwa kwayo: kusukela ezinombolweni kuya ezindabeni
Idatha yemivubukulo yangaphambi komlando ivame ukuhlukahluka kakhulu, kufaka phakathi izinsuku ze-radiocarbon, ukwakheka kwenhlabathi, izinhlobo zezinto ezidaliwe, ukuhlonza izinhlobo, kanye namamodeli endawo. Indlela yesayensi idinga ukuhlanganiswa okusobala: indlela idatha ekhethwa ngayo, indlela okungaqiniseki ngayo kubalwa, kanye nendlela iziphetho ezithathwa ngayo. Izibalo, ukumodela ngokulandelana kwesikhathi (isb., ukumodela kwe-Bayesian kwedatha ye-radiocarbon), kanye ne-Geographic Information Systems (GIS) kusiza ekwakheni ukucutshungulwa kwedatha.
Noma kunjalo, ukuhumusha kusadinga ukuqapha. Izazi zemivubukulo kumele zicabangele ukubandlulula kokulondolozwa (akuzona zonke izinto ezigciniwe), ukuphazamiseka kwendawo, kanye nokwenzeka kwezincazelo eziningi, ezinengqondo ngokulinganayo. Ngakho-ke, izincwadi zesayensi ngokuvamile zifaka ingxoxo ngemikhawulo yedatha kanye nokuhumusha okunye.
Ukuziphatha kanye nokubambisana: ingxenye yemikhuba yesayensi yesimanje
Indlela yesayensi yokuvubukula kwasendulo ihlanganisa nokuziphatha kocwaningo. Izindawo zangaphambi komlando ziyizinsiza ezingavuseleleki: uma sezimbiwe ngaphandle kwemibhalo efanele, ulwazi luyalahleka. Abavubukuli kumele baqinisekise ukuthi ukulondolozwa, ukuqoshwa, kanye nokugcinwa kwezinto ezitholakele kwenziwa ngokwezindinganiso. Ngaphezu kwalokho, ukubambisana nemiphakathi yendawo, ohulumeni, kanye nemiphakathi yomdabu (lapho kufanele khona) kuya ngokuya kuqashelwa njengokubalulekile, ikakhulukazi ekuphathweni kwezindawo kanye nocwaningo ngezinsalela zabantu.
Enkathini yanamuhla, isayensi yezinto zakudala nayo iya kudatha evulekile: ukwabelana ngendlela, i-metadata, kanye nemiphumela yokuhlaziya ukuze ihlolwe ngabanye abacwaningi. Lokhu kuhambisana nezimiso zesayensi zokuphindaphinda nokuqinisekisa.
I-Penutup
Ukuvubukula kwangaphambi komlando kungabhekana nezikhathi ezikude kanye nobufakazi obungaphelele, kodwa indlela yesayensi ivumela ukutadisha okuhlelekile kwesikhathi esidlule. Kusukela ekuhloleni nasekumapheni, ekumbeni okune-stratigraphic, ekubhaleni isikhathi, ekuhlaziyeni izinto zobuciko kanye nezinsalela zezinto eziphilayo, kuya ekubumbeni nasekuhloleni—konke kuklanyelwe ukuhlola imibono, ukuhlola ukungaqiniseki, nokwakha izincazelo eziqine kakhulu ngokusekelwe kudatha. Ngale ndlela, ukuvubukula kwangaphambi komlando kudlula ekuqoqeni izinsalela kuya ekwakheni ukuqonda okuthembekile kwemvelaphi, ukuzivumelanisa nezimo, kanye nokwehlukahlukana kwezindlela zokuphila zabantu esikhathini esidlule.
