"Indoda Yeqhwa u-Otzi" odumile weNkathi Yamatshe, etholakala eqhweni lentaba, wayenama-tattoo.
Kudala, ubuciko bokubhoboza nokudaya isikhumba somuntu busakazeke emasikweni amaningi ahlukene. Cishe kuwumkhuba womhlaba wonke, ngenxa yemishini yokudweba ama-tattoo kagesi. Ingahlanganisa isikhumba ngokushesha kakhulu kunezinaliti zendabuko ezisetshenziswa phakathi kweminwe yomdwebi we-tattoo. Ezimweni eziningi, injini engenamabhulashi yendebe engenamikhono iqinisekisa ukusebenza kahle komshini ngesivinini esilawulwayo kanye nokudlidliza okuncane.
Lokho esikubiza ngokuthi “i-tattoo” kuvela olimini lwesiPolynesia. NgesiSamoa, igama elithi tatau lisho “ngokufanele” noma “ngendlela efanele impela.” Liwukubonakaliswa kobuciko obuthambile, obungokwesiko bokudweba ama-tattoo emasikweni endawo. Ngesikhathi samakoloni, abagibeli bamalwandle baletha ama-tattoo kanye nenkulumo evela ePolynesia futhi baletha imfashini entsha: ukuhlobisa isikhumba.
Namuhla, kunezindawo eziningi zokudweba ama-tattoo kuwo wonke amadolobha amakhulu.
Kusukela ezimpawini ezincane ze-Yin ne-Yang emaqakaleni kuya emidwebo emikhulu yezingxenye ezahlukene zomzimba iyatholakala. Yonke imilo nomklamo ongawucabanga ungafinyelelwa, futhi izithombe esikhumbeni zivame ukuba nobuciko obukhulu.
Isisekelo sobuchwepheshe akusikho nje amakhono ayisisekelo omdwebi we-tattoo, kodwa futhi kuncike kumathuluzi afanele. Umshini we-tattoo usebenza njengomshini wokuthunga: inalithi eyodwa noma ngaphezulu ibhobozwa esikhumbeni ngokuyijikisa. I-pigment ifakwa ezingxenyeni ezifanele zomzimba ngesivinini semigogodla eyizinkulungwane eziningana ngomzuzu.
Emishinini yesimanje ye-tattoo, inaliti iqhutshwa yinjini kagesi. Ikhwalithi yokushayela ibalulekile futhi kumele icishe ingabi nokudlidliza futhi isebenze buthule ngangokunokwenzeka. Njengoba i-tattoo ingahlala amahora amaningi ngesikhathi, umshini kumele ube lula kakhulu, kodwa unikeze amandla adingekayo -- futhi wenze ama-tattoo amaningi isikhathi eside. Abashayeli be-DC abasebenzisa insimbi eyigugu kanye nabashayeli be-DC abangenamabhulashi abayisicaba abanabashayeli bokulawula isivinini esakhelwe ngaphakathi balungele ukuhlangabezana nalezi zidingo. Banesisindo esingamagremu angu-20 kuya kwangu-60 kuphela, kuye ngemodeli, futhi basebenza kahle ngamaphesenti angu-92.
Abaculi be-tattoo abangochwepheshe bazibona njengabaculi, futhi imishini esezandleni zabo iyithuluzi lokukhombisa ubuciko babo.
Ama-tattoo amakhulu avame ukudinga amahora amaningi omsebenzi oqhubekayo. Ngakho-ke umshini we-tattoo wanamuhla awudingi nje ukukhanya, futhi kumele uguquke kakhulu, ungahamba kunoma iyiphi indlela. Ngaphezu kwalokho, umshini omuhle we-tattoo kufanele futhi ube nokudlidliza okuncane nokubamba okukhululekile.
Uma uqala ukubona, umshini wokudweba ama-tattoo usebenza njengomshini wokuthunga: inaliti eyodwa noma ngaphezulu iyanyakaza esikhumbeni. Izinkulungwane zezimbobo ngomzuzu zingenza umbala ube lapho kudingeka khona. Umdwebi we-tattoo onekhono ngeke ajule kakhulu noma ajule kakhulu, umphumela omuhle ungqimba oluphakathi lwesikhumba. Ngoba uma lukhanya kakhulu, i-tattoo ngeke ihlale isikhathi eside, futhi uma lujule kakhulu, luzobangela ukuphuma kwegazi futhi luthinte umbala.
Imishini esetshenziswayo kumele ihlangabezane nezidingo zobuchwepheshe nezokuklama eziphakeme kakhulu futhi isebenze ngokunembile nangokuthembekile. Njengoba ukusebenza kwenziwa ezindaweni ezibucayi zomzimba, njengamehlo, idivayisi kumele ithule kakhulu lapho isebenza. Ngenxa yokuthi ukuma kwedivayisi kukude futhi kuncane, kungcono ukuthi ibe usayizi wepeni lebhola, ngakho-ke ifaneleka kakhulu kuma-micromotor e-DC amancane kakhulu.
Njengoba inezici zobuchwepheshe ezinhle kakhulu, injini yethu inesici sokusebenza kahle okuphezulu, okuwusizo kakhulu kwimodi yebhethri.
Ubuningi bamandla aphezulu buholela ezixazululweni zokushayela ezincane nezilula, njengobubanzi obungu-16mm bamadivayisi okuzenzela ahlala njalo aphathwa ngesandla.
Uma kuqhathaniswa nemoto ejwayelekile ye-DC, imishini yethu ihlukile ku-rotor. Ayizungezwanga eduze kwe-iron core, kodwa iqukethe ikhoyili yethusi egobile ezisekelayo. Ngakho-ke, isisindo se-rotor silula kakhulu, hhayi nje ukusebenza okuthule, kodwa futhi sinezici eziphakeme zamandla, hhayi umphumela we-alveolar, noma umphumela we-hysteresis ovamile kwezinye ubuchwepheshe.