Cov hlau nplaum nyob rau hauv cov hlau nplaum tas mus li yuav ploj mus dhau lub sijhawm, tab sis tsis muaj kev kwv yees ib nrab-lub neej xws li xov tooj cua. … Nyob rau lub sij hawm ntev, kev hloov pauv ntawm qhov kub thiab txias, qhov chaw sib nqus tsis sib haum thiab cov neeg kho tshuab txav yuav ua rau cov khoom sib nqus kom lwj. Txawm li cas los xij, qhov cuam tshuam no qeeb heev.
Cov hlau nplaum yuav kav ntev npaum li cas?
Lub hlau nplaum ruaj khov nyob ntev npaum li cas? Cov hlau nplaum ruaj khov, yog tias khaws cia thiab siv rau hauv kev ua haujlwm zoo, yuav khaws nws cov hlau nplaum rau xyoo thiab xyoo. Piv txwv li, nws tau kwv yees tias cov hlau nplaum neodymium poob kwv yees li 5% ntawm nws cov hlau nplaum txhua 100 xyoo.
Cov hlau nplaum puas hnav?
1) "Ntev" hlau nplaum: yog, hlau nplaum "hloov" spontaneously nyob rau hauv cov hlau nplaum no, thiab cov txheej txheem tuaj yeem nrawm yog tias cov hlau nplaum raug kho hauv qee txoj hauv kev.… Hauv cov hlau nplaum uas muaj hlau nplaum tag nrho, txhua qhov chaw muaj lawv cov ncej qaum teb thiab sab qab teb txhua qhov taw qhia tib yam.
Cov hlau nplaum puas poob lawv lub zog?
Demagnetisation yog txheej txheem qeeb tab sis hlau nplaum tuaj yeem poob lawv lub zog dhau sijhawmQhov no feem ntau tshwm sim ob txoj hauv kev. Yog li-hu ua cov hlau nplaum ruaj khov yog tsim los ntawm cov khoom tsim los ntawm cov khoom sib nqus, uas cov atoms muaj cov hluav taws xob uas nws cov spines sib haum nrog ib leeg.
Pob hlau nplaum poob lawv rub lub sijhawm?
Cov hlau nplaum poob qhov tsis tseem ceeb, qhov tsis txaus ntseeg ntawm "rub" lub sijhawmCov hlau nplaum ruaj khov yuav poob feem ntawm ib feem ntawm lub zog ntau xyoo. Lwm yam uas tuaj yeem ua rau cov hlau nplaum tsis muaj zog: Kub: Peb hu nws tias Curie kub, tab sis qhov ntawd tsis yog qhov zoo tshaj plaws los saib nws.
