'In 1906 G.E. produced its first light bulb using this metal as a filament; it's still used today'
tungsten
METALS: In 1906 G.E. produced its first light bulb using this metal as a filament; its still used today
In 1906 G.E. produced its first light bulb using this metal as a filament; it's still used today
In 1906 G.E. produced its first light bulb using this metal as a filament; it's still used today
METALS
tungsten
METALS