These days, light bulbs may last only a few hours or, at most, a few hundred hours. However, there is one bulb in the world that has been continuously burning for 125 years.
These days, light bulbs may last only a few hours or, at most, a few hundred hours. However, there is one bulb in the world that has been continuously burning for 125 years. The light bulb, invented by Thomas Edison, continues to illuminate the world in various forms. In the modern era, bulbs often burn out or last only a few hundred or a few thousand hours. However, there is one bulb in the world that has been burning for 125 years. On this basis, it is listed in the Guinness World Records as the longest-burning light bulb in the world. This Saturday, September 19, the bulb will celebrate its 125th anniversary.
This historic “Centennial Light Bulb,” which was handmade by the Shelby Electric Company, was installed in 1901 at a fire station in Livermore, California, where it was used as a nighttime light for firefighters. It has remained illuminated ever since. It was later moved to a fire station on East Avenue. The bulb originally operated at 60 watts, but it now uses approximately 4 watts of electricity. The dimly glowing carbon-filament bulb has long been a source of fascination for scientists and engineers. Although the bulb has been turned off briefly several times over the years, this was not due to the bulb malfunctioning. Rather, the interruptions were caused by power outages or the bulb being moved to another location. For this reason, it is considered to have remained continuously lit.
The bulb’s extraordinary longevity is attributed to the durable manufacturing techniques of the past as well as several technical factors. It was designed by an engineer named Adolphe Chaillet. Its filament is about eight times thicker than the tungsten filaments used in modern bulbs, and it was sealed using a highly effective vacuum system. In addition, because the bulb operates at only four volts, it uses very little electrical power, preventing its filament from becoming excessively hot and breaking. Thousands of tourists visit the fire station every year to see the world’s most durable and remarkable light bulb. It is also monitored around the clock through a live webcam on the internet.
