Ib tee ntshav rau ntawm cov neeg pub ntshav lub paib tiv npe, dej ntws uas poob rau hauv dej, ib tee ntshav uas yuav ntws tawm ntawm tus ciav dej - lawv txhua tus muaj kwv yees li qhov qub. Txhawm rau kos poob, koj yuav tsum xub xav seb nws zoo li cas.
Peb pib nrog ib oval
Ib qho poob, kom txog thaum nws poob rau hauv av lossis hauv dej, muaj lub ntsej muag tshwj xeeb hu ua poob-ua. Yog tias koj sim xav txog nws nyob rau hauv daim ntawv ntawm lub cev geometric, tom qab ntawd nws zoo li lub pob rau ntawm uas lub khob hliav. Pib nrog kab ntsug. Hauv qhov no, daim ntawv tuaj yeem nteg raws li koj nyiam. Faib txoj kab ncaj nraim rau 2 kwv yees li qhov sib luag. Qhov no yog "lub cev pob txha" ntawm koj txoj kev ua ntshav.
Qhov feem ntawm qhov seem yog nyob ntawm qhov ntom ntawm cov tshuaj. Qhov ntau dua ntom ntom, qhov loj dua ntawm lub pob yuav.
Vajvoog thiab daim duab peb sab
Kos lub voj voog rau hauv qab. Nws cov duab yuav tsis xwm yeem me ntsis, tab sis sim kos lub voj voog kom raug yog tias tsim nyog. Los ntawm sab saum toj kawg nkaus, nqa cov kab sib npaug ntawm lub kaum ntawm 2 txog thaum lawv kov lub voj voog. Cov kab ncaj qha yuav tsum muaj qhov zoo sib xws. Tam sim no koj muaj qhov nkhaus ntawm qhov poob.
Yog tias qhov poob poob ntawm ib ces kaum, nws yuav zoo li asymmetrical. Qhov no yog li cas dauv yog feem ntau pleev xim rau daim ntawv tshaj tawm.
Xa daim foos
Ib qho poob yog qhov khoom siv hauv lub tshuab hluav taws xob. Txhawm rau qhia nws cov duab, koj tsuas yog xav tau kos ob peb kab sib luag rau cov contours. Piv txwv li, ob peb kab ntawm sab xis, ib qho hauv qab, ib qho luv ntawm sab laug. Hauv qab, koj tuaj yeem kos ib lossis ob lub qe kheej me. Daim duab npaj tau. Yog tias koj yuav pleev xim hla lub blob kom nws zoo li peb-seem, tseg ib qho me me, tsis xwm yeem dawb paug rau sab hauv nruab nrab ntawm lub npas. Ua rau cov vauv tuab tuab ntawm qhov nkhaus.
Saucer, pas dej, hav iav
Saib seb qhov poob zoo li cas thaum nws poob rau hauv dej. Nws poob nws lub puab tais zoo li tus "tw" thiab hloov ua ntej rau hauv pob, tom qab ntawd mus rau hauv lub ncuav mog qab zib, los ntawm cov uas sib sib zog ua voj voos sib txawv. Cov voj voog, thaum saib ntawm lub kaum sab xis, tshwm sim yog ovals. Ib qho poob saum cov asphalt lossis ib daim ntawv yog tsuas yog blot ntawm cov neeg tsis muaj duab. Nws tsis tas yuav tsum tau kos nws ntawm lub hom phiaj, nws txaus los kos lub voos thaiv nrog xaum thiab xim pleev xim rau nws.
Dab tsi muaj tib cov duab?
Muaj peev xwm kos duab poob yog qhov tseem ceeb heev, vim tias muaj ntau yam khoom siv, nrog rau ib tus neeg ntawm lub cev ntawm cov tsiaj thiab noog, muaj qhov zoo li no. Piv txwv li, lub taub hau ntawm lub stork lossis heron, lub cev ntawm tus me nyuam qaib, nplooj ntawm qee cov nroj tsuag, thiab ntau ntau tau zoo sib xws rau ib tee. Txhawm rau ua kom muaj cov txuj ci, kos ob peb yam ntawm cov khoom sib thooj. Los ntawm txoj kev, yog tias koj xav kos ib tee tsis yog nrog xaum, tab sis nrog cov xim tsev, qhov no yooj yim dua. Koj tsis tas yuav taug qab ib qho nkhaus. Nws yog txaus kom noj cov ntaub mos muag dav (ntxwj lossis kolinsky), quav rau hauv cov xim thiab muab nws rau ib daim ntawv. Koj tsis tas yuav nias nyuaj, tab sis qhov muag muag ntawm txhuam txhuam yuav tsum dhau ntawm daim ntawv.
