After people had electricity being delivered to their houses and places of work, inventions such as washing machines, electric irons, motors, radios could take advantage of the convenient source of power available needed to run them.
Without the electric light bulb, the world that we live in would be very different. The parent to the modern fluorescent lamp was invented in the late s by Peter Cooper Hewitt. The Cooper Hewitt lamps were used for photographic studios and industries. George Inman later teamed with General Electric to create a practical fluorescent lamp, sold in , and patented in The first fluorescent bulb and fixture were displayed to the general public at the New York World's Fair.
The fluorescent light bulb creates light by sending electricity through a gas. This produces visible light, but also some ultraviolet light, which is invisible to the human eye. To make the ultraviolet visible, the inside of a fluorescent light bulb is coated in a substance that absorbs ultraviolet and changes it to visible light. This brightens the light from the fluorescent light. If handled properly, fluorescent light bulbs are not dangerous. However, they contain mercury, so be careful when disposing of them.
They can also get warm, although not as hot as incandescent light bulbs. They do blow up. Fluorescent light bulbs change electrical energy directly into light. This makes them a lot more efficient than incandescent bulbs, which waste most of their energy as heat. There are three different types of the fluorescent light bulb.
One is a long tube which requires a special outlet. It is the kind most commonly found in schools and stores. The second is a tube that is bent into two loops. It fits in a regular light fixture and is popular in Europe. The third type also fits in a regular fixture. It is a spiral tube and is most common in the United States.
Although fluorescent light bulbs take a very long time to burn out, they do fail eventually. This is usually caused by the failure of some component of the electronics inside the bulb; however, it can also be caused by the failure of the phosphor or of the vapors that conduct electricity through the lamp. It has changed the world by making light bulbs a lot more energy-efficient, meaning that they waste less electricity.
Electrical power generators, a power distribution network, and electric wires all had to be invented to allow electricity into people's homes. Also, to make electricity safer, the fuse had to be invented. Finally, phosphors had to be invented before we could invent the fluorescent light bulb. As a result, the incandescent lamp is widely used both in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting.
Many incandescent bulbs are scheduled to be phased out of production by Click here to learn more about the Energy Independence and Security Act of and how it might affect you.
Skip to content. Account Sign In. Instant Rebates are available to businesses Click to find out about your location. Electrodes at either side of the tube will fit into brackets, typically in a commercial or industrial building with heavy lighting needs.
When electricity is run through the tube, the free electrons will interact with the molecules of mercury. They then become excited, having been infused with energy due to the impact. The electrons return to their normal state quickly, releasing the extra energy in the form of light. This is how a fluorescent light works. Oil lamps were the precursors of electrical lamps, and were built quite a bit differently than what we're now used to.
The base is hollow, containing flammable oil. Into the base is inserted a long, corded string, called a wick. Before the invention of the light bulb, illuminating the world after the sun went down was a messy, arduous, hazardous task. 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.
When the science of electricity really got going in the mid s, inventors everywhere were clamoring to devise a practical, affordable electrical home lighting device. Englishman Sir Joseph Swan and American Thomas Edison both got it right around the same time in and , respectively , and within 25 years, millions of people around the world had installed electrical lighting in their homes.
The easy-to-use technology was such an improvement over the old ways that the world never looked back. The amazing thing about this historical turn of events is that the light bulb itself could hardly be simpler. The modern light bulb, which hasn't changed drastically since Edison's model, is made up of only a handful of parts.
In this article, we'll see how these parts come together to produce bright light for hours on end. Light is a form of energy that can be released by an atom.
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