Coob tus neeg sim kom tsis txhob muaj cov khoom tawv rau tsuas yog vim qhov tseeb tias lawv tsis ntshai kom tsis txhob cais cov khoom ntawm cov khoom ntuj. Qhov tseeb, tsis muaj ib yam dab tsi hauv qhov no. Nws yog qhov tseem ceeb heev kom muaj kev paub thiab kev txawj ntawm cov ncauj lus no, vim tias tam sim no nws tig mus rau cov ntawv uas khau khau, khaub ncaws.
Dab tsi koj yuav tsum paub txog cov tawv nqaij ntuj
Ntawm no yog tawv tiag.
Qhov zoo ntawm cov khoom tawv tuaj yeem sib txawv ntau nyob ntawm cov khoom siv raw siv los ntawm cov chaw tsim khoom. Feem ntau siv cov nyuj, nees, ostriches, khej thiab lwm yam tsiaj. Ib qho ntxiv, qhov zoo tshaj ntawm daim tawv nqaij yog heev cuam tshuam los ntawm cov tshuaj uas tau siv nyob rau hauv cov txheej txheem ntawm nws xaiv. Niaj hnub no, hluavtaws los yog kev sib xyaw ua ke feem ntau siv. Thaum kawg, txoj kev tshem tawm yog cuam tshuam rau qhov zoo ntawm daim tawv nqaij, xws li cov khoom siv raw lossis pov. Raws li qhov tshwm sim, tom qab xaiv, daim tawv nqaij tau txais ntau yam zoo uas tau txais los ntawm nws: elasticity hauv nws: lub zog, lub zog siab, qis thermal conductivity.
Dab tsi koj yuav tsum paub txog cov tawv nqaij hluavtaws
Tab sis synthetics.
Yav tas los, cov dermatin tuaj yeem sib txawv yooj yim los ntawm tus yam ntxwv tsis hnov tsw, tab sis tam sim no cov khoom lag luam tau paub txog cov khoom siv hluavtaws, yog li nws yog tsis muaj tsawg ruaj ruaj, tsis ua rau muaj kev fab tshuaj, thiab rau ntau cov tsis muaj, lawv txawm ntau tshaj cov khoom siv ntuj (nrog rau kev tsim khoom zoo). Tag nrho cov no tau ua tiav ua tsaug rau kev sib ntxiv ntawm cov ntsiab lus ntuj rau hloov chaw. Cov tawv tawv hloov zoo thiab tsis yog deformed hauv qhov txias.
Yuav ua li cas paub qhov txawv ntawm daim tawv nqaij tawv
Nws tsim nyog mloog.
Los ntawm nws tus kheej, tsis muaj leej twg yuav ua kom nws ua tau los kuaj xyuas qhov naturalness ntawm daim tawv nqaij "Cov hau kev sib tw nrog", piv txwv, nrog sib dua. Txawm li cas los xij, muaj ntau tus lej ntawm cov uas nce yuav tsum tau them nyiaj los sim kom paub txog cov khoom.
Yog li, tawv tawv yog yooj yim ncab, nco qab cov khoom siv hluavtaws. Nws yog mos thiab ywj. Cov tawv me me yog feem ntau ua kom zoo dua li cov tawv. Nws yuav pom meej meej hauv cov chaw nrog kev txiav txim siab tsis muaj kev tiv thaiv. Yog tias muaj lub khob loj dua ntawm tes, koj tuaj yeem sim xav txog cov tawv nqaij ua rau muaj cov hws hws. Yog tias muaj cov dots me me, ces qhov no yog cov khoom ntuj.
Qhov loj tshaj plaws tsis yog yuav maj thaum xaiv.
Nco ntsoov ua tib zoo mloog xim. Thaum rubbing cov khoom ntuj, nws yuav tsis hloov cov xim. Lwm qhov tseem ceeb taw tes yog kev hloov pauv cua sov. Cov tawv nruj tam sim ntawd ua kom sov siab txawm tias los ntawm tib neeg txhais tes. Cov tawv tsiaj yog yuav luag tsis muaj rhuab.