The bright idea that illuminated the world is reaching a less-than-glowing end.
On September 24, General Electric will close its lamp plant in Winchester, Virginia. It's the company's last U.S. factory producing plain, old incandescent light bulbs.
The incandescent bulb might be Edison's most important innovation. Notorious for getting by on just a few hours sleep, he wanted to transform the world into a 24-hour culture by lighting up the night. His bulb also became the enduring symbol of creative thinking.
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