Light bulb filament
Bill takes apart an incandescent to show how the tungsten filament is made. He shows it in extreme close-up and also discusses the material processing needed to produce ductile tungsten.
Watch video Light bulb filament online without registration, duration hours minute second in high quality. This video was added by user engineerguy 28 February 2011, don't forget to share it with your friends and acquaintances, it has been viewed on our site 861,776 once and liked it 16 thousand people.