Ngokweedatha, izixhobo zokucheba iinzipho zaqala ukuthandwa e-United States naseYurophu, kodwa ngeminyaka yoo-1930, u-American Voss Foucault waba ngowokuqala ukufaka isicelo selungelo elilodwa lomenzi wechiza.Ukususela ngoko, izixhobo zokucheba iinzipho ziye zasasazeka kwihlabathi jikelele.
Kule mihla, xa silungisa iinzipho zethu, sikhupha izinto zokucheba iinzipho.Nangona kunjalo, izixhobo zokucheba iinzipho zaziyimveliso yenkulungwane yama-20.Ngoko ke, abantu bamandulo babezilungisa njani izikhonkwane xa kwakungekho zitshixo zokunqunqa?Namhlanje, aYaQin diamond drill umthengisiiya kukwazisa ukuba abantu bakudala babezilungisa njani izikhonkwane.
Njengoko intetho isithi: Abantu bakhulisa iinwele ngokukhululekileyo kwaye izikhonkwane zikhula ngokukhululekileyo.Enyanisweni, ubude bezikhonkwane bukwanxulumene nobudala.Ngokutsho kwedatha, izipikili zentsana zikhula malunga ne-0.7 mm ngeveki.Njengoko bekhula, izinga labo lokukhula liyenyuka.Emva kwabantu abadala, izipikili zikhula ngomlinganiselo we-1 ukuya kwi-1.4 mm ngeveki, kodwa abaninzi abantu bakhulisa izipikili zabo emva kweminyaka engama-30. Isantya siya kuncipha.
Ukongezelela, izikhonkwane zikhula ngokukhawuleza ehlotyeni, zicotha ebusika, zikhawuleza kusasa, kwaye zicotha ebusuku.Ukuhlikihla rhoqo kuya kukhawulezisa ukukhula kwezikhonkwane, ngoko ke abantu abasebenzisa izikhonkwane zasekunene bakhula ngokukhawuleza kunezo zingasekhohlo.Isantya sokukhula kwesikhonkwane ngasinye asifani ncam, ngokuqhelekileyo xa umnwe omde, ngokukhawuleza isikhonkwane sikhula.
Ezi mfihlo zincinci zisecaleni kwethu, kodwa abantu abaninzi abakazifumani.
Kule mihla, xa iinzipho zabantu zikhula, basebenzisa izixhobo zokucheba iinzipho ukuzilungisa.Ngoko abantu bamandulo babezilungisa njani izikhonkwane xa kwakungekho zixhobo zokucheba iinzipho?Umhleli wemihla ngemihla waBalinganiswa baseTshayina ujonge ulwazi kwaye wafumana impendulo.
Ngokutsho kwengxelo, abantu basekwiminyaka yeenkawu, kanye njengezilwanyana zasendle zanamhlanje, njengeengcuka, amahlosi namahlosi, ezisila iinzipho emaplangeni, eziqwini zemithi nasematyeni.Nangona kunjalo, emva kokuba abantu beqalise ukusebenzisa izixhobo, kwi-Stone Age, izikhonkwane zomntu zazichetywa kwigrabile okanye kwilitye lentlabathi.
NgeXesha leBronze, abantu baqalisa ukugudisa iinzipho zabo kwiimela zobhedu.Kamva, uluntu lwenze ifayile.Le fayile ikude kakhulu kwifayile yanamhlanje, oko kukuthi, kukho iincinci ezincinci eziphuma kwi-bronze, kwaye zixutywe kuyo.Kamva, abantu bafumanisa isikere.
Okwangoku, isikere esavunjululwa kumangcwaba amandulo eNtshona Han Dynasty eLuoyang sele ikhona iminyaka engaphezu kwe-2,100.Ngenkulungwane ye-6 AD, isikere saziswa eJapan sisuka eTshayina kwaye saqala ukwenziwa kwaye sisetyenziswe ngobuninzi ngexesha le-Edo.
Ngaphambi kokunciphisa izikhonkwane, kungcono ukunyanga ulusu olufileyo kunye neefowuni kwizikhonkwane ukwenza izikhonkwane zikhule ngcono.IYaQin diamond drilligqunywe ngeedayimani zepolycrystalline ezihlala ixesha elide, ezinganyangekiyo kwaye zibekwe kwintonga yentsimbi engenasici, enokuthi isuse ngokukhawuleza nangempumelelo ulusu olufileyo kunye neecalluses kwizikhonkwane.Ingasetyenziselwa unyango lwe-cuticle.Inokuba neentlobo ezahlukeneyo zeemilo ukuze zilungele umsebenzi ofunekayo.
Ixesha lokuposa: Aug-20-2021