3 ms·

Wouldn't that make the arc-minute the practical unit?

• kbutler 14y ago
  > Wouldn't that make the arc-minute the practical unit? Yes. However, the earth is not a perfect sphere. The nautical mile is an average arc-minute.
  • cygx 14y ago
    And the kilometer is an average centigrad.
    • ISL 14y ago
      Thanks for triggering a rarely used synapse. http://en.wikipedia.org/wiki/Grad_(angle) http://en.wikipedia.org/wiki/Grad_(angle)
  • siscia 14y ago
    For what I know the nautical mile change due to your position in the Earth...