• Johandea@feddit.nu
          link
          fedilink
          arrow-up
          1
          ·
          7 months ago

          So “16.4 mph north” is sufficient.

          No, it’s not. “North” is a two dimensional direction on the surface of the earth. But we live, and can throw babies, in three dimension. Therefore you need to specify the inclination as well. “56 furlongs per minute, north, 0.3 radians” would suffice.