Hanging about 18 feet high in the engine bay of a Livermore, California firehouse, a humble, low-watt light bulb has been burning almost continuously since 1901.The Los Angeles Times recently ran a story on the remarkably resilient Centennial Bulb—a four-watt, curlicue carbon-filament lightbulb that, give or take a few brief interludes, has been burning for 24 hours a day, seven days a week for more than a century.The bulb has become something of a lucky charm for Livermore firefighters, who (according...
