thaum cov hlau nplaum nrhiav tau

Magnets thawj zaug tau pom dua 2,000 xyoo dhau los hauv Suav teb. Txawm li cas los xij, nws tsis yog txog thaum xyoo pua 18th uas cov kws tshawb fawb pib kawm thiab nkag siab txog cov khoom ntawm cov hlau nplaum.

Ib qho kev tshawb pom tseem ceeb tshaj plaws yog tsim los ntawm ib tus kws kho mob Fabkis tus kws kho mob hu ua André-Marie Ampère thaum xyoo pua 19th. Nws pom tias hluav taws xob thiab hlau nplaum muaj feem cuam tshuam, ua rau kev txhim kho ntawm electromagnetic txoj kev xav.

Lwm qhov kev tshawb pom tseem ceeb tau tshwm sim hauv xyoo 1820 thaum ib tus kws kho mob Danish hu ua Hans Christian Oersted pom tias cov hluav taws xob tam sim no dhau los ntawm cov hlau tuaj yeem ua rau rab koob sib nqus txav. Qhov kev tshawb pom no tau coj mus rau kev tsim cov tshuab hluav taws xob thiab cov tshuab hluav taws xob.

Txawm li cas los xij, qhov kev tshawb pom zoo tshaj plaws hauv cov hlau nplaum tuaj rau xyoo 1825 thaum tus kws tshawb fawb Askiv hu ua William Sturgeon tsim thawj electromagnet. Qhov no tau ua rau kev txhim kho cov hlau nplaum muaj zog uas tuaj yeem qhib thiab tawm nrog kev siv hluav taws xob.

Niaj hnub no, hlau nplaum yog siv nyob rau hauv ntau yam khoom, nrog rau cov hais lus, hluav taws xob motors, thiab MRI tshuab. Lawv kuj tau siv rau lub hom phiaj niaj hnub, xws li tuav cov ntawv ntawm lub tub yees.