Interest
Proportion of Hacker News items mentioning "elevators" over time.
Mentions
Total number of Hacker News items mentioning "elevators" over time.
An elevator or lift is a machine that vertically transports people or freight between levels. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack. Read more on Wikipedia