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The incandescent light bulb was downright amazing when it was invented in 1809 by Humphry Davy. Nope, it wasn't invented by Thomas Edison -- that's just another American history lie, much like the stories about Christopher Columbus "discovering" America and being some sort of upstanding hero. In truth, he and his men were butchers who committed numerous atrocities against the Native Americans (see The People's History of the United States by Howard Zinn). U.S. history is largely a collection of politically convenient lies, and the story of the invention of the light bulb by Thomas Edison is just one of many such distortions. Read the timeline of the history of the incandescent light bulb here: http://inventors.about.com/library/...
Unfortunately, very little has changed about the light bulb since the turn of the 20th century. The device still wastes 95 percent of the electricity it consumes. And thanks to a deliberate design by manufacturers to encourage repeat sales (i.e. they are deliberately engineered to burn out), light bulbs still burn out after about 1,000 hours, requiring consumers to toss them into the garbage and buy new ones. (It's true: Light bulbs were invented in 1991 that last 60,000 hours, but companies refuse to mass produce them, since repeat sales of light bulbs would plummet. The bulbs sold to consumers today are designed to self-destruct.)
Incandescent lights are a safety hazard (glass shards, anyone?) and an environmental hazard, since they produce massive carbon dioxide emissions from the coal power plants used to power these bulbs. They're incredibly cheap to purchase up front, but astonishingly expensive to use over time. A typical incandescent light bulb is ten times more expensive to operate than an LED light bulb. It also produces ten times as much carbon dioxide that contributes to global warming. Want to warm the climate? Turn on the lights!
So why, then, are so many people still using incandescent light bulbs? Primarily because they have no idea what it costs to actually operate them. The fact that these light bulbs are secretly slipping dollars out of your pocket every time they're used seems to go unnoticed by most consumers. All they see is the price tag at the store. And there, incandescent lights look really cheap.
The $500 incandescent light bulbBut what if the price of the light bulb at the store included the entire cost of the electricity needed to actually power the light bulb? If that incandescent light bulb actually lasted 50,000 hours like LED lights do, the cost of buying the bulb together with all the electricity needed to power it would be a whopping $500!. Would you pay $500 for a light bulb?
Of course, incandescent lights don't last 50,000 hours. They last only about 1,000. Which means you have to buy fifty bulbs, replace them fifty times and throw fifty burned out bulbs in the garbage, all while still paying nearly $500 in electricity anyway. In other words, paying for 50,000 worth of light from an incandescent light bulb actually costs MORE than $500!
That's no bargain. Not by a long shot. Especially when a $100 ten-watt LED light bulb can operate for 50,000 hours using only about $54 in electricity. (We're assuming 10 cents per kilowatt-hour for these calculations. Folks in California are paying a lot more than that, but in some states, it's less...)
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Friday, October 26, 2007
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