2024 Tus sau: Sierra Becker | [email protected]. Kawg hloov kho: 2024-02-26 05:10
Yog tias tam sim ntawd koj tau txais ib txoj haujlwm hauv zaj lus qhia geometry, lossis hauv nws tus kheej muaj lub siab xav txhuam ntawm cov khoom ntawm peb-seem, ces koj yuav tsum tau nyeem tiag tiag txog yuav ua li cas ua tetrahedron tawm ntawm daim ntawv., thiab nco ntsoov muab peb cov lus qhia rau kev xyaum. Tom qab tag nrho, daim duab no, vim nws txoj kev yooj yim, yog ib qho ntawm cov qauv yooj yim ntawm kev ua qauv peb sab.
Lo lus "tetrahedron" tuaj yeem txhais los ntawm Greek li "tetrahedron". Tseeb tiag, cov khoom nyob rau hauv nqe lus nug muaj plaub daim duab peb sab ntsej muag, nrog rau plaub vertices thiab rau ntug. Muaj ob peb hom subspecies ntawm daim duab no, tab sis peb yuav tsis tham txog txhua qhov kev xaiv ua tau. Hauv kab lus no, koj tuaj yeem kawm txog txoj hauv kev los ua tawm ntawm daim ntawv
tetrahedron. Qhov no yuav yog ib txwm tetrahedron, tag nrho cov ntawm nws lub ntsej muag yog equilateral daim duab peb sab.
Ua haujlwm, koj tsis tas yuav nkag mus rau hauv cov lej lej nyuaj, koj tsis tas yuav suav qhov ntim ntawm tetrahedron, lossis nws cheeb tsam, lossis nws qhov siab. Yam koj xav tau yog daim ntawv, xaum, txiab thiab kua nplaum, lossis koj tuaj yeem tau los ntawm daim ntawv xwb.
Vim ntawvlos ua ib tug tetrahedron, muaj tag nrho cov khoom tsim nyog? Muaj ntau txoj hauv kev. Qhov kev xaiv thawj zaug thiab feem ntau: txiav tawm plaub daim duab peb sab nrog lub npe hu ua "petals", uas yog tom qab ntawd glued ua ke. Koj tuaj yeem kos daim duab peb sab sib npaug ntawm koj tus kheej lossis siv cov qauv npaj ua. Qhov zoo ntawm txoj kev no suav nrog
muaj peev xwm ua tus duab ntau xim los ntawm kev noj cov ntawv ntawm cov xim sib txawv thiab ntxoov ntxoo. Qhov no yuav ua rau cov khoom ci ntsa iab thiab nthuav ntxiv.
Txoj kev thib ob yog cov kua nplaum tsis cais cov duab peb sab, tab sis twb tau txuas rau ib leeg (lub npe hu ua tetrahedron unfolding). Hauv qhov no, kuj tseem tuaj yeem muaj ntau txoj kev xaiv, xws li: cov paj ntoo rau gluing tuaj yeem ua rau txhua lub ntsej muag qhib lossis tsuas yog ntawm qee qhov, cov uas sawv cev rau qhov tsawg kawg nkaus rau kev ruaj ntseg fixation.
Thiab zaum kawg, xav txog txoj kev thib peb ntawm yuav ua li cas ua ib daim ntawv tetrahedron, peb yuav pom tias tsis tas yuav muaj cov nplaum nplaum, vim
Lwm qhov kev xaiv rau kev sib sau cov duab geometric no yog modular origami. Xws li ib tug hollow pyramid yuav ua tau siv txoj kev no, muaj ib tug txaus npaum li cas ntawm daim ntawv, perseverance thiab siab ntev nyob rau hauv cia. Feem ntau, qhov no tsis yog qhov nyuaj heev, tab sis ua haujlwm hnyav, thiab hauv kab lus no peb yuav tsis muab cov lus qhia ntxaws. Yog tias koj txaus siab rau cov ntaub ntawv no, koj tuaj yeem nrhiav nws hauv cov peev txheej tshwj xeeb rau daim duab Japanese no. Thiab, yog tias koj tseem muab teeb meem rau koj tus kheej kom nrhiav tau cov lus qhia rau cov khoom siv tes ua no, tsis ntev koj yuav tau yooj yim txawm tias cov qauv tsim.
Txhua qhov kev xaiv tau teev tseg saum toj no muaj nws tus kheej zoo dua lwm tus, thiab lawv txhua tus tsim nyog thiab siv tau. Thiab koj yuav tsum xaiv txoj kev uas haum rau koj, raws li lub sijhawm thiab kev ua siab ntev, nrog rau lub hom phiaj ntawm lub neej yav tom ntej tetrahedron qauv.
Pom zoo:
Cov nyhuv ntawm daim duab qub: yuav ua li cas ua cov duab vintage, xaiv qhov kev pab cuam rau kev ua haujlwm nrog cov duab, cov duab tsim nyog, cov ntxaij lim dej rau kev ua haujlwm
Yuav ua li cas ua kom cov nyhuv ntawm daim duab qub hauv daim duab? Nws yog dab tsi? Vim li cas cov duab vintage thiaj li nrov? Cov hauv paus ntsiab lus ntawm kev ua cov duab zoo li no. Kev xaiv ntawm daim ntawv thov rau smartphones thiab computers rau retro duab ua
Yuav ua li cas ua ib lub polyhedron tawm ntawm daim ntawv. Daim ntawv polyhedra - schemes
3D qauv ntawm cov duab yog thawj heev. Piv txwv li, koj tuaj yeem tsim ib lub polyhedron tawm ntawm daim ntawv. Xav txog qee txoj hauv kev los ua nws siv cov duab kos thiab duab
Yuav ua li cas ua lub siab tawm ntawm daim ntawv nrog koj tus kheej txhais tes - cov lus piav qhia ib ntus, daim duab thiab cov lus pom zoo
Cov khoom siv tes ua lub plawv zoo li no yuav yog khoom plig zoo rau koj tus neeg koj hlub lossis kho kom zoo nkauj sab hauv. Yuav ua li cas ua tau nyob rau hauv daim ntawv ntawm lub ntsiab cim ntawm kev hlub? Koj yuav pom ntau cov duab, tswv yim thiab kev tshoov siab hauv kab lus no
Nco nco npib ntawm "Lub Nroog ntawm Tub Rog Lub Zog". Npib 10 rubles ntawm series "Lub nroog ntawm Tub Rog Hwjchim ci ntsa iab"
Tej zaum tsis muaj tus lej zoo li no uas yuav tsis paub txog tag nrho cov nyiaj npib hauv cov npe ntawm 10 rubles, uas muaj lub npe "Lub Nroog ntawm Tub Rog Lub Zog". Thawj zaug, nws cov qauv raug tso tawm hauv xyoo 2011, thiab txij li ntawd los, kev txaus siab rau nws tsis tau ploj mus. Ntau tus neeg nyob hauv Russia thiab txawv teb chaws tau pib yuav cov nyiaj npib tshwj xeeb no, vim tias lawv muaj qee yam ntawm tus kheej
Rosary weaving: lub hom phiaj ntawm rosary, cov txheej txheem ntawm kev ua tiav, cov ntaub ntawv tsim nyog thiab cov cuab yeej, cov lus qhia ua ntu zus rau kev ua haujlwm thiab cov kws tshaj lij cov lus qhia
Ntau zaus hauv lub neej niaj hnub muaj xws li "rosary". Ntau tus neeg tsis txawm muaj qhov tsis paub txog lub hom phiaj ntawm tus cwj pwm no. Kab lus no tham txog dab tsi keeb kwm thiab lub hom phiaj ntawm rosary muaj, thiab tseem sau ib txoj hauv kev los xaws cov rosary kom zoo