vacuum bulb in a sentence
- :: : Those early vacuum bulbs were a popular plot point in old movies.
- In another failure mode, a tiny puncture of the arc tube leaks some of the sodium vapor into the outer vacuum bulb.
- In 1841, Frederick de Moleyns of England was granted the first patent for an incandescent lamp, with a design using platinum wires contained within a vacuum bulb.
- Hammer found that under certain conditions of vacuum and voltage he observed a blue glow around the positive pole in a vacuum bulb and a blackening of the wire and the inside of the glass bulb at the positive pole.