The term comes from the way people measured the speed that the boat was traveling at. They would have a slender rope with knots on at regular intervals, and something to create drag at the end. Then they'd throw the rope overboard and count the number of knots that were pulled out in a certain amount of time.
The nautical term for a unit of speed when sailing or navigating a boat is the word knots. To measure a knot it is the unit of speed equal to one nautical mile approximately 1.151 mph.
Modern container ships have adopted slow steaming to save on fuel. The lowered speed from the standard 25 knots to 20 knots are at 14 MPH.
You can't. Knots is a measure of speed, miles is a measure of length.
Knots in nautical terms means a measure of speed, not distance.
No, nautical knots and airplane speed knots are not the same measurement. Nautical knots measure speed in nautical miles per hour, while airplane speed knots measure speed in nautical miles per hour as well but in the context of aviation.
Should be the speed of E-class container ships: 25.5 knots
About 46 mph.
Depending on the type of ship/boat it can be a perfectly safe speed. most modern container ships travel around at 20 - 23 knots.
The name of the calculator that helps to measure the speed of an aeroplane in knots is called a conversion calculator. This allows for an equal comparison between different measurement types.
10 knots=11.5 mph, but some ships might have exceeded at 12 knots=13.8 mph.
Ships like the USS Forrestal and Enterprise could get over 35 knots.
It originated in reference to the knots sailors tied in the rope used to measure the distance a ship travled. E2020's answer