ua cov hlau nplaum lo rau iav

Cov lus teb luv luv yog tsis yog, feem ntau.

Cov iav yog cov khoom siv tsis muaj hlau nplaum, txhais tau tias nws tsis tsim ib qho chaw sib nqus ntawm nws tus kheej. Magnets ua hauj lwm raws li lub hauv paus ntsiab lus ntawm attraction ntawm opposite ncej thiab repulsion ntawm cov ncej zoo sib xws. Yog li ntawd, rau cov hlau nplaum los lo rau ntawm qhov chaw, qhov saum npoo yuav tsum yog hlau nplaum lossis muaj cov hlau nplaum sib nqus.

Muaj, tau kawg, kev zam rau txoj cai no. Qee hom iav muaj me me ntawm cov hlau nplaum sib nqus, uas tuaj yeem ua rau lawv tsis muaj zog hlau nplaum. Txawm li cas los xij, qhov no tsis tshwm sim hauv kev siv txhua hnub thiab tsis yog ib yam uas cov neeg siv khoom tuaj yeem txheeb xyuas tau yooj yim. Tsis tas li ntawd, txawm nyob rau hauv cov xwm txheej no, lub zog sib nqus feem ntau tsis muaj zog txaus los txhawb qhov hnyav hnyav.

Ntxiv mus, lub thickness ntawm lub iav kuj plays lub luag hauj lwm nyob rau hauv txiav txim nws magnetism. Cov iav nyias nyias, xws li cov khoom siv hauv smartphones lossis smartwatches, tsis tshua muaj qhov sib nqus ntau dua li cov iav tuab, xws li siv hauv lub qhov rooj fridge lossis whiteboards.