decorative light bulbs

in steemit •  7 years ago 

image
Incandescent lamps are artificial light sources generated through the distribution of electric current through filaments which then heat up and produce light. The glass covering the hot filaments prevents air from connecting with it so that the filament will not be directly damaged by oxidation

Authors get paid when people like you upvote their post.
If you enjoyed what you read here, create your account today and start earning FREE STEEM!