Interest
Proportion of Hacker News items mentioning "lightbulb" over time.
Mentions
Total number of Hacker News items mentioning "lightbulb" over time.
An electric light, lamp, or light bulb is an electrical device that produces light from electricity. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic that secures them in the socket of a light fixture. The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet mount. Read more on Wikipedia