Log
Of measuring instrument and ship.
Measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water.
This concept's ID is @1~20042
Contains
- patent log
A cigar-shaped log with rotary fins that measure the ship's speed.
- harpoon log
A cylindrical log with a device that registers distance.
- log line
A knotted cord that runs out from a reel to a piece of wood that is attached to it.