Txawm tias cov laus txuas ntxiv pom qee cov khoom muaj zog ntawm qhov thiaj li hu ua "kev kub piv". Piv txwv li, Giza pyramid complex tau tsim ntawm txoj ntsiab cai no. Tsis tas li ntawd nyob rau hauv lub faadeade ntawm lub ancient Greek tuam tsev ntawm lub Parthenon muaj "kub" proportions. Tus qauv kub tsim yog li cas?
Nws yog qhov tsim nyog
Tus pas ntsuas, xaum
Cov Lus Qhia
Kauj ruam 1
Kev faib ua feem (los ntawm Latin cov lus proportio) yog muaj vaj huam sib luag hauv qab no a: b = c: d. Cov kub piv yog qhov faib ntawm ntu rau hauv ntu, nyob rau hauv qhov ntev ntawm tag nrho ntu yog hais txog qhov ntev ntawm ntau qhov, zoo ib yam li qhov ntev ntawm feem ntau hais txog qhov ntev ntawm ntu me. Lub tswv yim heev ntawm piv ntawm kub tau qhia los ntawm Leonardo da Vinci. Nws suav hais tias tib neeg lub cev yog qhov zoo tshaj plaws ntawm kev tsim lub ntuj. Yog tias tib neeg lub cev khi nrog txoj siv sia, nws hloov tawm tias qhov siab ntawm tag nrho tus neeg yog hais txog qhov deb ntawm lub duav mus rau heels, ib yam li qhov kev ncua deb ntawm lub duav mus rau heels yog hais txog qhov kev ncua deb ntawm lub duav mus rau yas taub hau.
Kauj ruam 2
Yog tias peb coj, piv txwv li, ntu ntawm txoj kab ncaj qha AB thiab faib nws los ntawm qhov C, kom AB: AC = AC: BC, tom qab ntawd peb tau txais txoj kev sib txig sib luag hauv qab no AB: AC = AC: (AB-AC) lossis AB (AB-AC) = AC2 lossis AB2-AB * AC-AC2 = 0. Tom ntej, tso AC2 sab nraum cov nkhaus AC2 (AB2: AC2 - AB: AC - 1) = 0.
Kauj ruam 3
Yog tias koj tso npe tsab ntawv AB: AC nrog tsab ntawv K, koj tau txais cov duab plaub sib npaug K2-K-1 = 0. Ib qho ntawm lub hauv paus ntawm qhov sib npaug quadratic no yuav yog tus lej 1, 618. Hauv lwm lo lus, "tus piv rau kub" yog tus lej tsis txaus, kwv yees li ntawm 1, 618.
Kauj ruam 4
Cov pyramids Iyiv tau tsim raws li txoj ntsiab cai ntawm tus piv kub. Muaj ib lub xwmfab ntawm lub hauv paus ntawm pyramids. Piv txwv li, thaum lub hauv paus ntawm Cheops pyramid lus dag lub xwmfab nrog sab ntev ntawm 230, 35 meters. Qhov siab ntawm no pyramid yog 146.71 m. Sab ntsej muag ntawm Cheops pyramid yog daim duab peb sab ntawm isosceles nrog lub kaum sab xis ntawm qhov apex thiab ces kaum ntawm lub hauv paus sib npaug li 45 degrees
Kauj ruam 5
Muaj plaub lub ntsej muag zoo li sab ntawm isosceles voos peb npaug, txij li lub hauv paus yog xwm fab. Hauv daim duab peb sab qhia hauv xim liab nyob hauv daim duab yog hu ua "Iyiv" daim duab peb sab dawb ceev. Daim duab peb sab Egyptian yog ib daim duab peb sab nrog sab 3, 4, 5, lossis k3, k4, k5, qhov twg k belongs rau cov teeb tsa ntawm tus lej. Nyob rau hauv xws li lub koob, sab ntawm lub hauv paus hais txog qhov siab li 1, 618 - qhov no yog qhov piv kub
Kauj Ruam 6
Yog li, txhawm rau txhim kho lub pyramid nyob rau hauv cov piv txwv ntawm ntu kub, koj yuav tsum: 1. Kos ib lub xwm fab xwm fab (sab ntawm lub xwm fab xwm meem yuav tsum zoo ib yam li k * 3, nyob qhov twg k yog tus naj npawb ntuj).2. Ua cov kab pheeb ces kaum kev ntawm muab lub duab 3. Ntawm qhov taw tes ntawm kev sib tshuam ntawm cov duab, txo qhov siab sib npaug ntawm ib sab ntawm plaub fab muab faib los ntawm 1, 618.4. Txuas cov kab sab saud ntawm qhov siab ntawm pob zeb nrog plaub plaub qhov kawg ntawm lub hauv paus.
