What is a knot?
A knot is a measure of speed at sea. The term comes from a method used by sailors in olden days. A piece of wood was tied to a rope that had a knot tied in it at every 14.4 metres. The wood would be thrown into the sea and it pulled the rope after it. The speed would be calculated by counting the knots dragged out in 28 seconds. One knot equals 1.85 kilometres per hour.
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Tuesday, February 12, 2008
What is a knot?
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