Kom txog rau thaum 1858, nws ntseeg tau tias txhua qhov chaw tsim nyog muaj ob sab. Piv txwv li, ib daim ntawv yog ntawv ob tog. Tab sis tus xibfwb nyob rau ntawm University of Leipzig, ntsuas lub hli Lub Yim Hli Ferdinand Moebius tsim ib qho tsis txaus ntseeg, thaum xub thawj siab ib muag, saum npoo - ib-sab. Nws yog hu ua Mobius sawb.
Nws yog qhov tsim nyog
- ntawv,
- txiab,
- kua nplaum
Cov Lus Qhia
Kauj ruam 1
Txhawm rau kom tau txais Moebius, txiav ib txoj hlua khi ntawm ib daim ntawv ntawv. Nws cov peev txheej tuaj yeem yog qhov twg, tab sis nws zoo dua tias qhov ntev ntawm txoj hlua khi yog 5-6 npaug ntawm qhov dav, txwv tsis pub koj yuav tsis yooj yim rau kev ua haujlwm nrog nws ntxiv.
Kauj ruam 2
Tshaj tawm cov kab uas tshwm sim rau ntawm ib qho chaw tiaj tiaj, tuav ib qho kawg thiab ua tib zoo tig rau lwm qhov 180 degrees - kom tus sawb sawb thiab qhov tsis ncaj ncees lawm ntawm daim ntawv dhau los ua hauv ntej.
Kauj ruam 3
Siv nplaum ntawm qhov xaus ntawm cov ntawv sib dhos ua ke. Ib sab ib qho khoom, Tes Mobius sawb, yog npaj tau.
Kauj ruam 4
Txhawm rau kom paub tseeb tias daim ntaub tiag tiag muaj ib sab, sau ib tug cwj mem los yog xaum thiab sim pleev xim rau ib sab. Tom qab ib ntus, koj yuav pom tias koj tau pleev xim dua txhua daim hlau.
Kauj ruam 5
Cov khoom muaj txiaj ntsig tsis meej ntawm Mobius strip tsis yog qhov tsawg rau qhov no. Piv txwv li, yog tias koj nqa ib khub txiab txiav thiab txiav cov hlua khi rau hauv nruab nrab, tsis txhob siv ob txoj hlua ntawm ob sab (raws li koj xav tias yuav), koj tau txais ib txoj hlua ntev thiab ob npaug (nrog ob daim ntawv hloov ib nrab) Cov. Kev tsim qauv no yog hu ua Afghan pob. Yog tias, nyeg, txiav nws rau hauv nruab nrab, koj yuav tau txais ob lub pob voos sib cuam tshuam nrog txhua lwm. Thiab yog tias koj txiav cov Mobius sawb tsis nyob hauv nruab nrab ntawm txoj kab txaij, tab sis raws ib txoj kab uas faib rau saum npoo hauv qhov sib npaug 2: 1, tom qab ntawd qhov tshwm sim yuav yog ob qho khoom ib zaug: cov Mobius sawb thiab Afghan pluaj.
