The Explorers' Club, № MCXLI

The Centennial Light—An incandescent light bulb in Livermore, California that has been lit almost continuously since 1901; the hand-blown bulb has a thick carbon filament, unlike the tungston-alloy filaments that have been standard since the 1910s, & a high nitrogen atmosphere inside the bulb; the sixty-watt lamp has dimmed to a four-watt lamp; it is connected to an uninterruptible power supply.

Bonus! Song o' the Day: The Centennial Light
Less Than Jake, "The Brightest Bulb Has Burned Out/Screws Fall Out" from Anthem (Mike Papa Whiskey)

Semper exploro.