Worlds Oldest Lit Lightbulb !

Take a look at this! At the Livermore Firehouse located in California, there's a four watt light bulb that's been working for over a century. In 1972, it was declared by The Guinness Book of World Records the world's most durable light bulb.

Another interesting thing - the bulb has been on continuously since 1976, the year when it was moved to a newer firehouse. Cool!