Today, when people want light, they just flick the switch to turn on a light bulb. That hasn't always been the case. The evolution of the light bulb has occurred over a couple of centuries. In fact, long before the trend of creating energy saving, or "green" light bulbs, inventors were trying to create light to help people complete takes, see and enjoy nighttime entertainment. The few times we visited the history of the light bulb was in elementary school.
Connecting of the wires had to be done. Before there was light, there was a carbon glow. Sir Humphry Davy, an English chemist, actually started the evolution of the light bulb in 1809. Davy used a battery, wires and a thin charcoal strip to create the first electric light. He used these materials by attaching two wires to a battery. Most of us to do not even think about where the light bulb originally came from.
However, it was Swan who patented his light bulb in 1860. Swan's version of the light bulb had problems. It didn't last long or produce much light at all. Although, he did create a better, improved version of his incandescent light bulb which lasted about 13.5 hours, someone else invented a brighter light. Before Swan's latest light bulb invention, in 1879, a couple people tried lighting up the world.
As the light bulb evolution progressed, engineers who worked for General Electric made their mark. For example, in 1906 a General Electric engineer invented a high melting tungsten filament. In 1910, William David Coolidge, an engineer at General Electric, invented a long lasting tungsten filament. Thus, Coolidge's bright idea actually made it more affordable and practical to manufacture light bulbs for commercial use.
The light or electric current, which passed through the coil, was actually the first light bulb. His theory was that melting platinum allows the bulb to operate at a high enough temperature that the evacuated tube would contain less gas. With less gas particles the platinum coil would last longer and provide light for a long time. Unfortunately for De la Rue, his invention didn't actually create a spark. In fact, during the 1820s platinum coil was too expensive to use.
Connecting of the wires had to be done. Before there was light, there was a carbon glow. Sir Humphry Davy, an English chemist, actually started the evolution of the light bulb in 1809. Davy used a battery, wires and a thin charcoal strip to create the first electric light. He used these materials by attaching two wires to a battery. Most of us to do not even think about where the light bulb originally came from.
However, it was Swan who patented his light bulb in 1860. Swan's version of the light bulb had problems. It didn't last long or produce much light at all. Although, he did create a better, improved version of his incandescent light bulb which lasted about 13.5 hours, someone else invented a brighter light. Before Swan's latest light bulb invention, in 1879, a couple people tried lighting up the world.
As the light bulb evolution progressed, engineers who worked for General Electric made their mark. For example, in 1906 a General Electric engineer invented a high melting tungsten filament. In 1910, William David Coolidge, an engineer at General Electric, invented a long lasting tungsten filament. Thus, Coolidge's bright idea actually made it more affordable and practical to manufacture light bulbs for commercial use.
The light or electric current, which passed through the coil, was actually the first light bulb. His theory was that melting platinum allows the bulb to operate at a high enough temperature that the evacuated tube would contain less gas. With less gas particles the platinum coil would last longer and provide light for a long time. Unfortunately for De la Rue, his invention didn't actually create a spark. In fact, during the 1820s platinum coil was too expensive to use.
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