The question can be understood in to different ways:
1. What is the standard measurement unit at sea?
This would be the knot, which is equal to 1 nautical mile per hour. A nautical mile is about 1.8 km.
2. In a ship, how navigators can tell how fast is the ship going?
There are a few ways to do that. One is to plot your position in a chart, maintain course and speed and after a while plot again the position, knowing time elapsed and distance traveled, you can then calculate average speed. Another one is by using a device called a speed log (there are several types). A third one, is to get a readout from your GPS receiver's display.
nautical miles
The speed of ships is typically measured using a device called a speed log, which calculates the speed based on the rotation of a propeller or paddle wheel. Other methods include using radar to track the ship's movement over a known distance or using satellite-based systems like GPS to determine the ship's speed.
Its is measured by speed,power,andwind speed
its measured in Knots
No. A barometer measures pressure. Wind speed is measured by an anemometer.
Computer processing speed is measured in IPS (Instructions per second).
it is measured in speed because of how fast it can transfer to the screen
In light speed.
Speed is measured by calculating the distance you have gone and how long it took you to get there. speed = distance over time
speed over distance or speed/Distance.
The wind direction is measured with wind vanes or wind socks. The wind speed is measured with an anemometer.
Wind speed is measured with an anemometer.