Txawm li cas los xij, txij li lub sijhawm uas thawj cov khoom hluavtaws tau nthuav tawm hauv xyoo 1960 thiab cov tawv hluavtaws tag nrho hloov cov tawv tawv hauv xyoo 1980, txoj kev ncaws pob tau hloov pauv tag nrho..
Thaum twg siv tawv tawv kawg?
thawj lub pob uas tsis yog tawv tawv tau tshwm sim hauv xyoo 1960, tab sis Fifa nyiam tawv, txawm tias muaj cov txheej txheem dej tsis huv, rau Ntiaj Teb Khob kom txog rau thaum Mexico 1986, thaum cov khoom siv Adidas Azteca tau siv. Tam sim no hais tias kev ncaws pob cuam tshuam nrog ntau theem ntawm kev nqis peev nyiaj txiag, txawm tias cov pob lawv tus kheej yog kev lag luam loj.
Neeg tawv tawv hnyav npaum li cas?
thawj pob loj cov cai
Nyob rau xyoo 1872 qhov hnyav ntawm kev tswj kev ncaws pob tau teeb tsa ntawm 14 txog 16 ounces. Qhov tsis txaus ntseeg, cov kev cai no tseem nyob hauv qhov chaw - nws tsuas yog cov ntaub ntawv thiab kev tsim kho uas tau hloov pauv ntau xyoo.
Puas tawv ncaws pob ntev dua?
Leather: Tawv yog siv nyob rau hauv qib siab tshaj plaws thiab kim tshaj plaws footballs. Football tawv yog tanned ua kom nws ntau ruaj, nrog rau tacky kom nws yooj yim tuav.
Yuav hnyav npaum li cas yog cov tawv tawv ntub dej qub?
Lub Koom Haum Ncaws Pob tau txiav txim siab xyoo 1872 tias kev ncaws pob yuav tsum yog kheej kheej nrog ib ncig ntawm 68 centimeters. Nws kuj yuav tsum tau ua tawv tawv thiab yuav tsum hnyav ntawm 453 thiab 396 grams thaum pib ntawm kev ua si.