How Does A Light Bulb Work

The bulbs that do glow blinding white are halogen bulbs.

How does a light bulb work. Many inventors of the time were attempting to create a light source to replace candles and oil lamps that were not. It took a bunch of candles or torches to fully light up a good sized room and oil lamps while fairly effective tended to leave a residue of soot on anything in their general vicinity. A light bulb is a simple apparatus that converts electric energy into light energy. Standard incandescent light bulbs work essentially the same way today that they did at the time of their invention over one hundred years ago.

The law of conservation of energy says that energy can neither be created nor destroyed it simply changes form. Just like the inert gas in a yellow bulb the halogen gas elongates the bulb s life by reacting with the evaporated tungsten molecules and re depositing them onto the. Thomas edison is generally credited with inventing the light bulb in 1879 though sir joseph swan of england arrived at the idea in 1878. As the current flows through the components of an electric bulb it generates light by increasing their heat levels.

But energy efficiency is just part of the story. When the science of electricity really got going in the mid 1800s inventors. A light bulb is able to take the electricity supplied to it and change its form into something that can be used for illumination. A single light fixture stocked with a 60 watt incandescent bulb consumes about 525 kwh of electricity in a year.

Before the invention of the light bulb illuminating the world after the sun went down was a messy arduous hazardous task. An electric light bulb works by conducting an electric current through its wires and the filament once it gets connected to a power supply. For the first time people did not need a fire candles oil lamps kerosene lamps etc to make light. It was bright enough to let people read easily at night or do work.

It was the first light bulb that could be used in houses it did not cost too much and it worked well. It was used to light stores and streets and people could travel.