Why does boats measure speed in knots and not mph/kmh?

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Why does boats measure speed in knots and not mph/kmh?

In: Physics

9 Answers

Anonymous 0 Comments

In the open ocean, its hard to judge speed when you dont have a speedometer.

So sailors would drop a log into the ocean tied to a rope, rope had knots on it all set a certain length apart and the log would pull the rope off the deck as it went. after a period of time they would pull it in and count the knots that were pulled off. The more, the faster.

Now, its purely tradition.

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