An incandescent light bulb contains a thin wire filament (usually tungsten) that glows hot when an electric current is run through it.
But unlike ordinary incandescent bulbs, they don't have a filament that will burn out, and they don't get especially hot.
He had division of the terminal filament for a tethered spinal cord, which was thought to be the cause of his symptoms.
A strong, alternating current heats a resistive filament , causing it to emit electrons.
He used a carbon filament in an oxygen-free bulb.
Her only connection to the world a tenuous filament of wires, tubes and intravenous needles.
It glimmers at barely 1800 degrees Fahrenheit, which is cooler than a light bulb filament .
In one experiment, the researchers formed the yarn into a lightbulb filament and found that its strength and conductivity increased after it heated up.
Unlike an incandescent bulb, no filament is needed.
The new lamp not only has the size and shape of a conventional filament bulb but also comes with a standard screw base and can therefore be fitted in any lamp or light socket.