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Electric light
en.wikipedia.org
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History of the Light Bulb
www.bulbs.com
In1802,HumphryDavyinventedthefirstelectriclight.Heexperimentedwithelectricityandinventedanelectricbattery....
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The History of the Light Bulb
www.energy.gov
2013年11月22日—In1835,thefirstconstantelectriclightwasdemonstrated,andforthenext40years,scientistsaroundth...
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Electrifying
www.sciencemuseum.org.
Bringingelectriclightintothehome—Beforegasorelectriclightingwereinvented,thegreatestlightsourceindoorsusua...
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Electric Light
www.amazon.com
Results1-48of100000+—HomemoryLEDCandles,24PCSTeaLightsBatteryOperated,Lasts2XLonger,FlamelessFlickeringEle...
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The Electric Light System
www.nps.gov
2015年2月26日—In1882EdisonhelpedformtheEdisonElectricIlluminatingCompanyofNewYork,whichbroughtelectricligh...
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electric light - Students
kids.britannica.com
Alight-emittingdiode(LED)isasemiconductordevicethatemitsvisibleorinfraredlightwhenchargedwithanelectriccur...
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What does electric light mean?
www.definitions.net
Anelectriclightisadevicethatproduceslightbytheflowofelectriccurrent.Itisthemostcommonformofartificiallight...
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How different types of electric light
www.britannica.com
Overviewofvarioustypesofelectriclight,includingincandescent,halogen,fluorescent,andLED.