4 ms·
The one I always find odd is that we all still use knots and nautical miles at sea. And nautical miles are not the same as imperial miles. And aircraft speeds a
by roryisok 8y ago
The one I always find odd is that we all still use knots and nautical miles at sea. And nautical miles are not the same as imperial miles. And aircraft speeds are still measured in knots sometimes.
- ColinWright 8y agoBut a nautical mile is one arc minute of great circle - it's the only one that actually makes sense.
- roryisok 8y agoI did not know that. Makes perfect sense now. Maybe not the knots though :)
- ColinWright 8y agoA knot is one Nautical Mile per hour. If hours make sense, and Nautical Miles make sense, then a knot is the obvious unit of speed. One Nautical Mile is roughly 1852 metres, so 1 kt is roughly 2 km/hr. More accurately, 1 m/s is very close to 2 kts.
- roryisok 8y agoI'm learning a lot today
- NeedMoreTea 8y agoNot odd at all. Nautical miles are one minute of latitude which makes for easier nav calculations. :)