Create a suspension Pib nrog ib feem dej hauv ib lub tais. Maj mam ntxiv 1.5 rau ob feem pob kws, nplawm tas li. Cov hmoov txhuv nplej siab tau raug tshem tawm hauv dej - tab sis dej ntau dhau yuav tsim cov kua. "Koj xav tau lub ntsiab lus taw qhia, ntawm qhov tsis yog-Newtonian pib," hais tias Podolefsky.
Koj puas tuaj yeem ua cov kua uas tsis yog-Newtonian nrog cov hmoov nplej?
Qhov kev tshawb fawb tom qab nws tag nrho:
Cov pob kws-dej sib tov yog ib qho piv txwv ntawm cov kua dej uas tsis yog-Newtonian. Newtonian kua, xws li dej, tswj qhov viscosity tas li (qhov ntsuas ntawm cov kua dej tsis kam ntws) tshwj tsis yog qhov kub thiab txias hloov pauv.
Puas pob kws thiab dej tsis yog-Newtonian kua?
Dej, uas muaj viscosity tsawg, ntws yooj yim. … Cov hmoov nplej uas koj tau ua yog hu ua "non-Newtonian"vim nws cov viscosity kuj nyob ntawm qhov quab yuam siv rau cov kua lossis ceev npaum li cas cov khoom txav los ntawm cov kua. Lwm cov piv txwv ntawm cov kua dej uas tsis yog Newtonian suav nrog ketchup, dag putty, thiab cov xuab zeb ceev.
Yuav ua li cas cov kua dej uas tsis yog-Newtonian yog pob kws?
Vim tias cov tshuaj cornstarch cov viscosity hloov nrog lub zog siv, nws yog tsis yog-Newtonian kua. Tsis zoo li cov kua Newtonian, siv zog rau cov kua dej uas tsis yog-Newtonian no ua rau nws cov khoom coj zoo li cov khoom. Qhov no ua rau tus cwj pwm ntawm cov kua dej tsis yog Newtonian txawv heev.
Yuav ua li cas thaum koj sib tovcornflour thiab dej?
Thaum koj sib tov cov pob kws hmoov nplej nrog dej lawv tuaj yeem txav mus los ib leeg yooj yim thiab ntws zoo li kua. … Yog tias koj siv lub zog tam sim ntawd, xws li nplawm lossis ntaus cov kua sai sai, cov khoom "jam" ua ke tsis cia cov dej los lubricate cov khoom thiab yog li cov sib tov ua zoo li cov khoom.
