dab tsi kua yog magnetic

Ua ntej, ferrofluids yog cov kua uas muaj cov khoom sib nqus. Ferrofluids yog tsim los ntawm cov khoom me me ntawm cov khoom sib nqus, feem ntau yog hlau oxide, tshem tawm hauv cov kua nqa khoom. Cov khoom no me me heev uas lawv tsis nyob rau hauv qab ntawm lub thawv thiab es tsis txhob nyob sib npaug sib npaug thoob plaws hauv cov kua nqa khoom. Thaum cov hlau nplaum raug coj los ze rau ntawm lub ferrofluid, cov kua yuav ua cov hlau nplaum, thiab nws tsim cov qauv sib nqus zoo nkauj.

Lwm hom magnetic kua yog magnetic ink. Cov kua dej no yog siv rau hauv kev lag luam kev ruaj ntseg, uas yog siv los luam tawm cov ntaub ntawv tiv thaiv kev dag xws li ntawv nyiaj, ntawv hla tebchaws, thiab vixaj. Tus cwj mem yog tsim los ntawm kev sib xyaw cov khoom sib nqus nrog cov kua dej ua kua. Qhov sib tov no tsim cov kua uas tuaj yeem luam tawm siv cov txheej txheem luam ntawv. Cov khoom sib nqus ntawm tus cwj mem tuaj yeem kuaj pom siv lub tshuab nqus hlau nplaum, ua rau nws muaj kev ruaj ntseg thiab nyuaj-rau-xws li number case.

Thaum kawg, electrolytes yog cov kua uas tsis yog hlau nplaum, tab sis lawv tuaj yeem ua hlau nplaum hauv qee yam mob. Electrolytes yog cov kev daws teeb meem uas ua hluav taws xob. Thaum cov hlau nplaum siv rau cov kua electrolyte, cov ions hauv cov kua txav mus rau hauv ib qho kev taw qhia, tsim kom muaj hluav taws xob tam sim no. Qhov kev txav ntawm ions nyob rau hauv cov tshuaj no tsim ib qho chaw sib nqus, muab cov khoom sib nqus ua kua.