hluav taws xob hluav taws xob
Cov hluav taws xob hluav taws xob muaj nyob nrog hluav taws xob thiab sib nqus zog hloov mus rau hauv qhov chaw, thiab lub zog no yog tsim los ntawm kev txav ntawm kev them nqi. Piv txwv li, kev sib tsub tawm ntawm lub xov tooj cua hloov mus kav hlau txais xov uas xa cov teeb liab ua kom muaj zog ntawm lub zog electromagnetic. Cov xaim hluav taws xob "hluav taws xob" suav nrog txhua hom hluav taws xob, los ntawm hluav taws xob tsawg tsawg dhau mus rau hluav taws xob ntau dhau ntawm qhov hluav taws xob tsawg. Tseem muaj xov tooj cua voos, microwaves, duab infrared, pom lub teeb thiab ultraviolet lub teeb nyob hauv nruab nrab. Cov ntsiab lus txhais dav dav ntawm lub xov tooj cua zaus ntawm ntu ntawm electromagnetic spectrum hais txog hluav taws xob nrog ntau zaus ntawm 3 kHz mus rau 300 GHz. Qee lub ntsuas hluav taws xob muaj qee yam cuam tshuam rau tib neeg lub cev.