Knots, Carats and Light-Years
Do you really know what a knot, a carat or a light-year actually measures? Your turn
What this quiz asks
- 1What does a knot, sailors' favourite unit, measure?
- 2And the light-year, what does it measure?
- 3For a diamond, what does the carat indicate?
- 4A nautical mile is roughly...
- 5A knot is exactly...
- 6Where does the word 'knot' for speed come from?
- 7A light-year is roughly...
- 8For gold, the carat is not about mass but about...
- 9The parsec, real despite Star Wars, measures...
- 10At sea, a cable length is roughly...
