Technical Support Engineer job description This Technical Support Engineer job description template is optimized for posting in online job boards or careers pages. Itâs easy to customize with duties and responsibilities when hiring for a support role.
In 1850 an English physicist named Joseph Wilson Swan created a âlight bulbâ by enclosing carbonized paper filaments in an evacuated glass bulb. And by 1860 he had a working prototype, but the lack of a good vacuum and an adequate supply of electricity resulted in a bulb whose lifetime was much too short to be considered an effective prodcer of light.
tungsten (or wolfram(W)) is usually used as the metal in domestic  lighbulbs. The element used as the gas in domestic lightbulbs is  usually argon (Ar).   Hope this help â¦ s :).