Today’s bulbs predominantly use tungsten filaments, a shift from the carbon filaments of the past. Tungsten, introduced in the early 20th century, has a higher melting point, which allows for ...

Light bulbs are one of those circuit elements we pretend are perfect, but they aren’t. Tungsten filaments have a low resistance when cold, which causes a bulb to draw a lot of current when it ...

incandescent lamps with tungsten filaments appear on the European market. These bulbs lasted longer, were brighter and more efficient than lamps with carbon filaments. 1908: Edison screws Part of ...