Natural sources of light include peb lub hnub thiab lwm hnub qub, qhov chaw ntawm lub zog yog nuclear zog (nco ntsoov tias lub hli tsis tsim lub teeb tab sis tsuas yog xav txog hnub ci), xob laim, qhov twg yog hluav taws xob, thiab hluav taws, qhov twg lub zog yog tshuaj.
Lub teeb tuaj qhov twg?
Daim duab ntawm lub teeb yog thawj zaug tsim hauv lub hnub lub chaw. Tshaj li kaum txhiab xyoo dhau los, cov photons taug kev "dunken taug kev," zigzagging lawv txoj kev ntawm atom mus rau atom kom txog thaum lawv ncav cuag qhov chaw.
Lub teeb tsim li cas?
Lub teeb yog tsim los ntawm ntawm photons, uas zoo li cov pob ntawv me me ntawm lub zog. Thaum ib yam khoom lub atoms sov, photon yog tsim los ntawm kev txav ntawm atoms. Qhov khoom kub dua, qhov ntau photons raug tsim.
Lub teeb puas tuaj yeem tsim lossis rhuav tshem?
6. Photons tau yooj yim tsim thiab rhuav tshem. Tsis zoo li qhov teeb meem, txhua yam khoom tuaj yeem tsim lossis rhuav tshem photons. Yog tias koj nyeem qhov no ntawm lub khoos phis tawj lub vijtsam, lub teeb nraub qaum yog ua cov photons uas mus rau koj lub qhov muag, qhov chaw uas lawv nqus tau-thiab rhuav tshem.
Leej twg xub pom lub teeb?
In 1802, Humphry Davy tau tsim thawj lub teeb hluav taws xob. Nws tau sim siv hluav taws xob thiab tsim lub roj teeb hluav taws xob. Thaum nws txuas cov xov hlau rau nws lub roj teeb thiab ib qho ntawm cov pa roj carbon monoxide, cov pa roj carbon glowed, tsim lub teeb. Nws cov khoom tsim tau lub npe hu ua Electric Arc teeb.
